1. 支付分布式ID概述

支付分布式ID是在支付系统中用于唯一标识各种支付资源的标识符。支付系统对ID的要求极其严格,需要满足全局唯一、高性能、高可用、趋势递增、信息安全、资金安全、交易追踪、风险控制、合规性、审计追踪等特性。支付分布式ID不仅要保证技术层面的唯一性,还要满足支付业务需求,支持高并发支付场景,防范资金风险。本文将详细介绍支付级分布式ID生成方案的原理、实现细节以及在Java企业级支付应用中的最佳实践。

1.1 支付分布式ID核心价值

  1. 全局唯一性: 在整个支付系统中保证ID的唯一性
  2. 高性能: 支持高并发支付交易场景下的ID生成
  3. 高可用性: 支付系统故障时仍能正常生成ID
  4. 趋势递增: ID具有时间顺序性,便于数据库索引和交易分析
  5. 信息安全: 避免暴露支付业务信息
  6. 资金安全: 确保资金交易的安全性
  7. 交易追踪: 支持完整的交易追踪
  8. 风险控制: 防范支付风险

1.2 支付分布式ID应用场景

  • 交易系统: 交易ID、支付ID、转账ID生成
  • 订单系统: 订单ID、支付订单ID、退款订单ID生成
  • 账户系统: 账户ID、余额ID、流水ID生成
  • 风控系统: 风控ID、规则ID、事件ID生成
  • 清算系统: 清算ID、结算ID、对账ID生成

1.3 支付分布式ID实现方案

  • 支付雪花算法: 增强版雪花算法,支持支付特性
  • 支付UUID: 支付级UUID生成器
  • 支付数据库自增: 基于数据库的支付级自增ID
  • 支付Redis: 基于Redis的支付级原子操作
  • 支付Zookeeper: 基于Zookeeper的支付级序列号
  • 支付Leaf: 支付级分布式ID生成器

2. 支付分布式ID基础实现

2.1 支付分布式ID配置类

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/**
* 支付分布式ID配置类
* @author Java实战
*/
@Configuration
@EnableConfigurationProperties(PaymentDistributedIdProperties.class)
public class PaymentDistributedIdConfig {

@Autowired
private PaymentDistributedIdProperties properties;

/**
* 支付雪花算法ID生成器
* @return 支付雪花算法ID生成器
*/
@Bean
public PaymentSnowflakeIdGenerator paymentSnowflakeIdGenerator() {
return new PaymentSnowflakeIdGenerator(
properties.getSnowflake().getWorkerId(),
properties.getSnowflake().getDatacenterId(),
properties.getSnowflake().getPaymentId()
);
}

/**
* 支付UUID生成器
* @return 支付UUID生成器
*/
@Bean
public PaymentUuidGenerator paymentUuidGenerator() {
return new PaymentUuidGenerator();
}

/**
* 支付数据库自增ID生成器
* @return 支付数据库自增ID生成器
*/
@Bean
public PaymentDatabaseIdGenerator paymentDatabaseIdGenerator() {
return new PaymentDatabaseIdGenerator();
}

/**
* 支付Redis ID生成器
* @return 支付Redis ID生成器
*/
@Bean
public PaymentRedisIdGenerator paymentRedisIdGenerator() {
return new PaymentRedisIdGenerator();
}

/**
* 支付Zookeeper ID生成器
* @return 支付Zookeeper ID生成器
*/
@Bean
public PaymentZookeeperIdGenerator paymentZookeeperIdGenerator() {
return new PaymentZookeeperIdGenerator();
}

/**
* 支付分布式ID服务
* @return 支付分布式ID服务
*/
@Bean
public PaymentDistributedIdService paymentDistributedIdService() {
return new PaymentDistributedIdService();
}

/**
* 支付分布式ID监控服务
* @return 支付分布式ID监控服务
*/
@Bean
public PaymentDistributedIdMonitorService paymentDistributedIdMonitorService() {
return new PaymentDistributedIdMonitorService();
}

/**
* 支付分布式ID安全服务
* @return 支付分布式ID安全服务
*/
@Bean
public PaymentDistributedIdSecurityService paymentDistributedIdSecurityService() {
return new PaymentDistributedIdSecurityService();
}

/**
* 支付分布式ID风控服务
* @return 支付分布式ID风控服务
*/
@Bean
public PaymentDistributedIdRiskService paymentDistributedIdRiskService() {
return new PaymentDistributedIdRiskService();
}

private static final Logger logger = LoggerFactory.getLogger(PaymentDistributedIdConfig.class);
}

2.2 支付分布式ID属性配置

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/**
* 支付分布式ID属性配置
* @author Java实战
*/
@Data
@ConfigurationProperties(prefix = "payment-distributed-id")
public class PaymentDistributedIdProperties {

/**
* 是否启用支付分布式ID
*/
private boolean enablePaymentDistributedId = true;

/**
* 默认ID生成器类型
*/
private String defaultGeneratorType = "PAYMENT_SNOWFLAKE";

/**
* 支付雪花算法配置
*/
private PaymentSnowflakeConfig snowflake = new PaymentSnowflakeConfig();

/**
* 支付UUID配置
*/
private PaymentUuidConfig uuid = new PaymentUuidConfig();

/**
* 支付数据库自增配置
*/
private PaymentDatabaseConfig database = new PaymentDatabaseConfig();

/**
* 支付Redis配置
*/
private PaymentRedisConfig redis = new PaymentRedisConfig();

/**
* 支付Zookeeper配置
*/
private PaymentZookeeperConfig zookeeper = new PaymentZookeeperConfig();

/**
* 安全配置
*/
private SecurityConfig security = new SecurityConfig();

/**
* 风控配置
*/
private RiskConfig risk = new RiskConfig();

/**
* 合规配置
*/
private ComplianceConfig compliance = new ComplianceConfig();

/**
* 是否启用监控
*/
private boolean enableMonitoring = true;

/**
* 监控间隔(毫秒)
*/
private long monitorInterval = 30000;

/**
* 是否启用告警
*/
private boolean enableAlert = true;

/**
* 生成失败率告警阈值
*/
private double failureRateAlertThreshold = 0.001;

/**
* 生成延迟告警阈值(毫秒)
*/
private long latencyAlertThreshold = 50;

/**
* 支付雪花算法配置类
*/
@Data
public static class PaymentSnowflakeConfig {
/**
* 工作机器ID
*/
private long workerId = 1L;

/**
* 数据中心ID
*/
private long datacenterId = 1L;

/**
* 支付ID
*/
private long paymentId = 1L;

/**
* 起始时间戳
*/
private long startTimestamp = 1609459200000L; // 2021-01-01 00:00:00

/**
* 是否启用支付雪花算法
*/
private boolean enableSnowflake = true;

/**
* 序列号位数
*/
private long sequenceBits = 10L;

/**
* 机器标识位数
*/
private long workerIdBits = 5L;

/**
* 数据中心标识位数
*/
private long datacenterIdBits = 5L;

/**
* 支付标识位数
*/
private long paymentIdBits = 4L;

/**
* 时间戳位数
*/
private long timestampBits = 40L;

/**
* 是否启用加密
*/
private boolean enableEncryption = true;

/**
* 加密密钥
*/
private String encryptionKey = "payment-distributed-id-key";
}

/**
* 支付UUID配置类
*/
@Data
public static class PaymentUuidConfig {
/**
* UUID版本
*/
private String version = "UUID4";

/**
* 是否启用支付UUID
*/
private boolean enableUuid = false;

/**
* 是否使用连字符
*/
private boolean useHyphens = true;

/**
* 是否转大写
*/
private boolean useUpperCase = false;

/**
* 是否启用加密
*/
private boolean enableEncryption = true;

/**
* 加密密钥
*/
private String encryptionKey = "payment-uuid-key";
}

/**
* 支付数据库自增配置类
*/
@Data
public static class PaymentDatabaseConfig {
/**
* 数据源名称
*/
private String dataSourceName = "payment";

/**
* 是否启用支付数据库自增
*/
private boolean enableDatabase = false;

/**
* 表名
*/
private String tableName = "payment_id_generator";

/**
* 字段名
*/
private String fieldName = "id";

/**
* 步长
*/
private int step = 1;

/**
* 初始值
*/
private long initialValue = 1L;

/**
* 是否启用加密
*/
private boolean enableEncryption = true;

/**
* 加密密钥
*/
private String encryptionKey = "payment-database-key";
}

/**
* 支付Redis配置类
*/
@Data
public static class PaymentRedisConfig {
/**
* Redis键前缀
*/
private String keyPrefix = "payment:distributed:id:";

/**
* 是否启用支付Redis
*/
private boolean enableRedis = false;

/**
* 过期时间(秒)
*/
private long expireTime = 3600;

/**
* 步长
*/
private int step = 1;

/**
* 初始值
*/
private long initialValue = 1L;

/**
* 是否启用加密
*/
private boolean enableEncryption = true;

/**
* 加密密钥
*/
private String encryptionKey = "payment-redis-key";
}

/**
* 支付Zookeeper配置类
*/
@Data
public static class PaymentZookeeperConfig {
/**
* Zookeeper连接地址
*/
private String connectString = "localhost:2181";

/**
* 是否启用支付Zookeeper
*/
private boolean enableZookeeper = false;

/**
* 会话超时时间(毫秒)
*/
private int sessionTimeout = 30000;

/**
* 连接超时时间(毫秒)
*/
private int connectionTimeout = 10000;

/**
* 根路径
*/
private String rootPath = "/payment-distributed-id";

/**
* 是否启用加密
*/
private boolean enableEncryption = true;

/**
* 加密密钥
*/
private String encryptionKey = "payment-zookeeper-key";
}

/**
* 安全配置类
*/
@Data
public static class SecurityConfig {
/**
* 是否启用安全
*/
private boolean enableSecurity = true;

/**
* 安全级别
*/
private String securityLevel = "HIGH";

/**
* 加密算法
*/
private String encryptionAlgorithm = "AES";

/**
* 加密密钥长度
*/
private int encryptionKeyLength = 256;

/**
* 是否启用数字签名
*/
private boolean enableDigitalSignature = true;

/**
* 数字签名算法
*/
private String signatureAlgorithm = "SHA256withRSA";

/**
* 是否启用访问控制
*/
private boolean enableAccessControl = true;

/**
* 访问控制规则
*/
private List<String> accessControlRules = new ArrayList<>();
}

/**
* 风控配置类
*/
@Data
public static class RiskConfig {
/**
* 是否启用风控
*/
private boolean enableRisk = true;

/**
* 风控规则
*/
private List<String> riskRules = new ArrayList<>();

/**
* 风控阈值
*/
private Map<String, Object> riskThresholds = new HashMap<>();

/**
* 是否启用实时风控
*/
private boolean enableRealTimeRisk = true;

/**
* 风控队列大小
*/
private int riskQueueSize = 10000;

/**
* 风控检查间隔(毫秒)
*/
private long riskCheckInterval = 1000;
}

/**
* 合规配置类
*/
@Data
public static class ComplianceConfig {
/**
* 是否启用合规
*/
private boolean enableCompliance = true;

/**
* 合规规则
*/
private List<String> complianceRules = new ArrayList<>();

/**
* 合规检查间隔(毫秒)
*/
private long complianceCheckInterval = 60000;

/**
* 是否启用实时合规
*/
private boolean enableRealTimeCompliance = true;

/**
* 合规队列大小
*/
private int complianceQueueSize = 10000;

/**
* 合规保留天数
*/
private int complianceRetentionDays = 2555; // 7年
}
}

2.3 支付分布式ID数据模型类

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/**
* 支付分布式ID数据模型类
* @author Java实战
*/
@Data
@Table(name = "payment_distributed_id_record")
public class PaymentDistributedIdData {

/**
* 主键ID
*/
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "id")
private Long id;

/**
* 支付分布式ID
*/
@Column(name = "payment_distributed_id", length = 64)
private String paymentDistributedId;

/**
* ID类型
*/
@Column(name = "id_type", length = 32)
private String idType;

/**
* 生成器类型
*/
@Column(name = "generator_type", length = 32)
private String generatorType;

/**
* 业务类型
*/
@Column(name = "business_type", length = 32)
private String businessType;

/**
* 支付业务类型
*/
@Column(name = "payment_business_type", length = 32)
private String paymentBusinessType;

/**
* 生成时间
*/
@Column(name = "generate_time")
private LocalDateTime generateTime;

/**
* 过期时间
*/
@Column(name = "expire_time")
private LocalDateTime expireTime;

/**
* 状态
*/
@Column(name = "status", length = 20)
private String status;

/**
* 加密状态
*/
@Column(name = "encryption_status", length = 20)
private String encryptionStatus;

/**
* 安全状态
*/
@Column(name = "security_status", length = 20)
private String securityStatus;

/**
* 风控状态
*/
@Column(name = "risk_status", length = 20)
private String riskStatus;

/**
* 合规状态
*/
@Column(name = "compliance_status", length = 20)
private String complianceStatus;

/**
* 扩展属性(JSON格式)
*/
@Column(name = "extended_properties", columnDefinition = "TEXT")
private String extendedProperties;

/**
* 安全信息(JSON格式)
*/
@Column(name = "security_info", columnDefinition = "TEXT")
private String securityInfo;

/**
* 风控信息(JSON格式)
*/
@Column(name = "risk_info", columnDefinition = "TEXT")
private String riskInfo;

/**
* 合规信息(JSON格式)
*/
@Column(name = "compliance_info", columnDefinition = "TEXT")
private String complianceInfo;

/**
* 创建时间
*/
@Column(name = "create_time")
@CreationTimestamp
private LocalDateTime createTime;

/**
* 更新时间
*/
@Column(name = "update_time")
@UpdateTimestamp
private LocalDateTime updateTime;

public PaymentDistributedIdData() {
this.status = "ACTIVE";
this.encryptionStatus = "ENCRYPTED";
this.securityStatus = "SECURED";
this.riskStatus = "PENDING";
this.complianceStatus = "PENDING";
this.generateTime = LocalDateTime.now();
}

public PaymentDistributedIdData(String paymentDistributedId, String idType, String generatorType) {
this();
this.paymentDistributedId = paymentDistributedId;
this.idType = idType;
this.generatorType = generatorType;
}

/**
* 验证支付分布式ID数据
* @return 是否有效
*/
public boolean validate() {
if (paymentDistributedId == null || paymentDistributedId.isEmpty()) {
return false;
}

if (idType == null || idType.isEmpty()) {
return false;
}

if (generatorType == null || generatorType.isEmpty()) {
return false;
}

if (paymentBusinessType == null || paymentBusinessType.isEmpty()) {
return false;
}

return true;
}

/**
* 是否过期
* @return 是否过期
*/
public boolean isExpired() {
if (expireTime == null) {
return false;
}
return LocalDateTime.now().isAfter(expireTime);
}

/**
* 是否已加密
* @return 是否已加密
*/
public boolean isEncrypted() {
return "ENCRYPTED".equals(this.encryptionStatus);
}

/**
* 是否已安全处理
* @return 是否已安全处理
*/
public boolean isSecured() {
return "SECURED".equals(this.securityStatus);
}

/**
* 是否已风控
* @return 是否已风控
*/
public boolean isRiskChecked() {
return "RISK_CHECKED".equals(this.riskStatus);
}

/**
* 是否已合规
* @return 是否已合规
*/
public boolean isCompliant() {
return "COMPLIANT".equals(this.complianceStatus);
}

/**
* 设置扩展属性
* @param key 键
* @param value 值
*/
public void setExtendedProperty(String key, Object value) {
Map<String, Object> properties = getExtendedPropertiesMap();
properties.put(key, value);
this.extendedProperties = JSON.toJSONString(properties);
}

/**
* 获取扩展属性
* @param key 键
* @return
*/
public Object getExtendedProperty(String key) {
Map<String, Object> properties = getExtendedPropertiesMap();
return properties.get(key);
}

/**
* 获取扩展属性Map
* @return 扩展属性Map
*/
private Map<String, Object> getExtendedPropertiesMap() {
if (extendedProperties == null || extendedProperties.isEmpty()) {
return new HashMap<>();
}
try {
return JSON.parseObject(extendedProperties, new TypeReference<Map<String, Object>>() {});
} catch (Exception e) {
return new HashMap<>();
}
}

/**
* 设置扩展属性Map
* @param properties 扩展属性Map
*/
public void setExtendedPropertiesMap(Map<String, Object> properties) {
this.extendedProperties = JSON.toJSONString(properties);
}

/**
* 设置安全信息
* @param securityInfo 安全信息
*/
public void setSecurityInfo(Map<String, Object> securityInfo) {
this.securityInfo = JSON.toJSONString(securityInfo);
}

/**
* 获取安全信息
* @return 安全信息
*/
public Map<String, Object> getSecurityInfo() {
if (securityInfo == null || securityInfo.isEmpty()) {
return new HashMap<>();
}
try {
return JSON.parseObject(securityInfo, new TypeReference<Map<String, Object>>() {});
} catch (Exception e) {
return new HashMap<>();
}
}

/**
* 设置风控信息
* @param riskInfo 风控信息
*/
public void setRiskInfo(Map<String, Object> riskInfo) {
this.riskInfo = JSON.toJSONString(riskInfo);
}

/**
* 获取风控信息
* @return 风控信息
*/
public Map<String, Object> getRiskInfo() {
if (riskInfo == null || riskInfo.isEmpty()) {
return new HashMap<>();
}
try {
return JSON.parseObject(riskInfo, new TypeReference<Map<String, Object>>() {});
} catch (Exception e) {
return new HashMap<>();
}
}

/**
* 设置合规信息
* @param complianceInfo 合规信息
*/
public void setComplianceInfo(Map<String, Object> complianceInfo) {
this.complianceInfo = JSON.toJSONString(complianceInfo);
}

/**
* 获取合规信息
* @return 合规信息
*/
public Map<String, Object> getComplianceInfo() {
if (complianceInfo == null || complianceInfo.isEmpty()) {
return new HashMap<>();
}
try {
return JSON.parseObject(complianceInfo, new TypeReference<Map<String, Object>>() {});
} catch (Exception e) {
return new HashMap<>();
}
}
}

/**
* 支付分布式ID生成结果类
* @author Java实战
*/
@Data
public class PaymentDistributedIdResult {

/**
* 是否成功
*/
private boolean success;

/**
* 生成的ID
*/
private String id;

/**
* ID类型
*/
private String idType;

/**
* 生成器类型
*/
private String generatorType;

/**
* 业务类型
*/
private String businessType;

/**
* 支付业务类型
*/
private String paymentBusinessType;

/**
* 生成时间
*/
private LocalDateTime generateTime;

/**
* 错误信息
*/
private String error;

/**
* 开始时间
*/
private long startTime;

/**
* 结束时间
*/
private long endTime;

/**
* 重试次数
*/
private int retryCount;

/**
* 加密状态
*/
private String encryptionStatus;

/**
* 安全状态
*/
private String securityStatus;

/**
* 风控状态
*/
private String riskStatus;

/**
* 合规状态
*/
private String complianceStatus;

/**
* 扩展属性
*/
private Map<String, Object> extendedProperties;

/**
* 安全信息
*/
private Map<String, Object> securityInfo;

/**
* 风控信息
*/
private Map<String, Object> riskInfo;

/**
* 合规信息
*/
private Map<String, Object> complianceInfo;

public PaymentDistributedIdResult() {
this.success = false;
this.retryCount = 0;
this.extendedProperties = new HashMap<>();
this.securityInfo = new HashMap<>();
this.riskInfo = new HashMap<>();
this.complianceInfo = new HashMap<>();
this.encryptionStatus = "ENCRYPTED";
this.securityStatus = "SECURED";
this.riskStatus = "PENDING";
this.complianceStatus = "PENDING";
}

public PaymentDistributedIdResult(String id, String idType, String generatorType) {
this();
this.id = id;
this.idType = idType;
this.generatorType = generatorType;
this.generateTime = LocalDateTime.now();
}

/**
* 获取生成耗时
* @return 生成耗时(毫秒)
*/
public long getDuration() {
return endTime - startTime;
}

/**
* 是否成功
* @return 是否成功
*/
public boolean isSuccess() {
return success;
}

/**
* 增加重试次数
*/
public void incrementRetryCount() {
this.retryCount++;
}

/**
* 是否已加密
* @return 是否已加密
*/
public boolean isEncrypted() {
return "ENCRYPTED".equals(this.encryptionStatus);
}

/**
* 是否已安全处理
* @return 是否已安全处理
*/
public boolean isSecured() {
return "SECURED".equals(this.securityStatus);
}

/**
* 是否已风控
* @return 是否已风控
*/
public boolean isRiskChecked() {
return "RISK_CHECKED".equals(this.riskStatus);
}

/**
* 是否已合规
* @return 是否已合规
*/
public boolean isCompliant() {
return "COMPLIANT".equals(this.complianceStatus);
}
}

/**
* 支付分布式ID状态信息类
* @author Java实战
*/
@Data
public class PaymentDistributedIdStatus {

/**
* 总生成数
*/
private long totalGenerated;

/**
* 成功生成数
*/
private long successGenerated;

/**
* 失败生成数
*/
private long failureGenerated;

/**
* 重试生成数
*/
private long retryGenerated;

/**
* 加密生成数
*/
private long encryptedGenerated;

/**
* 安全生成数
*/
private long securedGenerated;

/**
* 风控生成数
*/
private long riskCheckedGenerated;

/**
* 合规生成数
*/
private long compliantGenerated;

/**
* 成功率
*/
private double successRate;

/**
* 失败率
*/
private double failureRate;

/**
* 重试率
*/
private double retryRate;

/**
* 加密率
*/
private double encryptionRate;

/**
* 安全率
*/
private double securityRate;

/**
* 风控率
*/
private double riskRate;

/**
* 合规率
*/
private double complianceRate;

/**
* 平均生成时间(毫秒)
*/
private double averageGenerateTime;

/**
* 最大生成时间(毫秒)
*/
private long maxGenerateTime;

/**
* 最小生成时间(毫秒)
*/
private long minGenerateTime;

/**
* 最后检查时间
*/
private Long lastCheckTime;

/**
* 系统状态
*/
private String systemStatus;

/**
* 各生成器状态
*/
private Map<String, PaymentGeneratorStatus> generatorStatuses;

public PaymentDistributedIdStatus() {
this.lastCheckTime = System.currentTimeMillis();
this.systemStatus = "HEALTHY";
this.generatorStatuses = new HashMap<>();
}

/**
* 计算成功率
* @return 成功率
*/
public double calculateSuccessRate() {
if (totalGenerated > 0) {
return (double) successGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算失败率
* @return 失败率
*/
public double calculateFailureRate() {
if (totalGenerated > 0) {
return (double) failureGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算重试率
* @return 重试率
*/
public double calculateRetryRate() {
if (totalGenerated > 0) {
return (double) retryGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算加密率
* @return 加密率
*/
public double calculateEncryptionRate() {
if (totalGenerated > 0) {
return (double) encryptedGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算安全率
* @return 安全率
*/
public double calculateSecurityRate() {
if (totalGenerated > 0) {
return (double) securedGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算风控率
* @return 风控率
*/
public double calculateRiskRate() {
if (totalGenerated > 0) {
return (double) riskCheckedGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算合规率
* @return 合规率
*/
public double calculateComplianceRate() {
if (totalGenerated > 0) {
return (double) compliantGenerated / totalGenerated;
}
return 0.0;
}

/**
* 是否健康
* @return 是否健康
*/
public boolean isHealthy() {
return successRate >= 0.999 && failureRate <= 0.001 &&
encryptionRate >= 0.999 && securityRate >= 0.999 &&
riskRate >= 0.999 && complianceRate >= 0.999;
}
}

/**
* 支付生成器状态类
* @author Java实战
*/
@Data
public class PaymentGeneratorStatus {

/**
* 生成器类型
*/
private String generatorType;

/**
* 总生成数
*/
private long totalGenerated;

/**
* 成功生成数
*/
private long successGenerated;

/**
* 失败生成数
*/
private long failureGenerated;

/**
* 加密生成数
*/
private long encryptedGenerated;

/**
* 安全生成数
*/
private long securedGenerated;

/**
* 风控生成数
*/
private long riskCheckedGenerated;

/**
* 合规生成数
*/
private long compliantGenerated;

/**
* 平均生成时间(毫秒)
*/
private double averageGenerateTime;

/**
* 最后生成时间
*/
private LocalDateTime lastGenerateTime;

/**
* 生成器状态
*/
private String status;

public PaymentGeneratorStatus() {
this.status = "ACTIVE";
}

public PaymentGeneratorStatus(String generatorType) {
this();
this.generatorType = generatorType;
}

/**
* 计算成功率
* @return 成功率
*/
public double calculateSuccessRate() {
if (totalGenerated > 0) {
return (double) successGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算加密率
* @return 加密率
*/
public double calculateEncryptionRate() {
if (totalGenerated > 0) {
return (double) encryptedGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算安全率
* @return 安全率
*/
public double calculateSecurityRate() {
if (totalGenerated > 0) {
return (double) securedGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算风控率
* @return 风控率
*/
public double calculateRiskRate() {
if (totalGenerated > 0) {
return (double) riskCheckedGenerated / totalGenerated;
}
return 0.0;
}

/**
* 计算合规率
* @return 合规率
*/
public double calculateComplianceRate() {
if (totalGenerated > 0) {
return (double) compliantGenerated / totalGenerated;
}
return 0.0;
}

/**
* 是否健康
* @return 是否健康
*/
public boolean isHealthy() {
return calculateSuccessRate() >= 0.999 &&
calculateEncryptionRate() >= 0.999 &&
calculateSecurityRate() >= 0.999 &&
calculateRiskRate() >= 0.999 &&
calculateComplianceRate() >= 0.999;
}
}

2.4 基础支付分布式ID服务

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/**
* 基础支付分布式ID服务
* @author Java实战
*/
@Service
@Slf4j
public class PaymentDistributedIdService {

@Autowired
private PaymentDistributedIdProperties properties;

@Autowired
private PaymentSnowflakeIdGenerator paymentSnowflakeIdGenerator;

@Autowired
private PaymentUuidGenerator paymentUuidGenerator;

@Autowired
private PaymentDatabaseIdGenerator paymentDatabaseIdGenerator;

@Autowired
private PaymentRedisIdGenerator paymentRedisIdGenerator;

@Autowired
private PaymentZookeeperIdGenerator paymentZookeeperIdGenerator;

@Autowired
private PaymentDistributedIdMonitorService paymentDistributedIdMonitorService;

@Autowired
private PaymentDistributedIdSecurityService paymentDistributedIdSecurityService;

@Autowired
private PaymentDistributedIdRiskService paymentDistributedIdRiskService;

@Autowired
private PaymentDistributedIdRepository paymentDistributedIdRepository;

/**
* 生成支付分布式ID
* @param idType ID类型
* @param businessType 业务类型
* @param paymentBusinessType 支付业务类型
* @return 生成结果
*/
public PaymentDistributedIdResult generatePaymentId(String idType, String businessType, String paymentBusinessType) {
return generatePaymentId(idType, businessType, paymentBusinessType, properties.getDefaultGeneratorType());
}

/**
* 生成支付分布式ID(指定生成器)
* @param idType ID类型
* @param businessType 业务类型
* @param paymentBusinessType 支付业务类型
* @param generatorType 生成器类型
* @return 生成结果
*/
public PaymentDistributedIdResult generatePaymentId(String idType, String businessType, String paymentBusinessType, String generatorType) {
log.info("生成支付分布式ID,ID类型: {}, 业务类型: {}, 支付业务类型: {}, 生成器类型: {}",
idType, businessType, paymentBusinessType, generatorType);

PaymentDistributedIdResult result = new PaymentDistributedIdResult();
result.setIdType(idType);
result.setBusinessType(businessType);
result.setPaymentBusinessType(paymentBusinessType);
result.setGeneratorType(generatorType);
result.setStartTime(System.currentTimeMillis());

try {
// 参数验证
validateParameters(idType, businessType, paymentBusinessType, generatorType, result);
if (!result.isSuccess()) {
return result;
}

// 安全处理
if (!performSecurityProcess(idType, businessType, paymentBusinessType, result)) {
return result;
}

// 风控检查
if (!performRiskCheck(idType, businessType, paymentBusinessType, result)) {
return result;
}

// 合规检查
if (!performComplianceCheck(idType, businessType, paymentBusinessType, result)) {
return result;
}

// 根据生成器类型生成ID
String id = generateIdByType(generatorType, idType, businessType, paymentBusinessType);

if (id != null && !id.isEmpty()) {
result.setSuccess(true);
result.setId(id);
result.setGenerateTime(LocalDateTime.now());
result.setEndTime(System.currentTimeMillis());

// 加密ID
if (properties.getSnowflake().isEnableEncryption()) {
id = encryptId(id, generatorType);
result.setId(id);
}

// 记录成功指标
paymentDistributedIdMonitorService.recordSuccessGeneration(generatorType, result.getDuration());

// 保存ID记录
savePaymentIdRecord(result);

log.info("支付分布式ID生成成功,ID: {}, 类型: {}, 生成器: {}", id, idType, generatorType);
} else {
result.setSuccess(false);
result.setError("ID生成失败");
result.setEndTime(System.currentTimeMillis());

// 记录失败指标
paymentDistributedIdMonitorService.recordFailureGeneration(generatorType);

log.warn("支付分布式ID生成失败,类型: {}, 生成器: {}", idType, generatorType);
}

return result;

} catch (Exception e) {
log.error("支付分布式ID生成异常,类型: {}, 生成器: {}", idType, generatorType, e);

result.setSuccess(false);
result.setError("支付分布式ID生成异常: " + e.getMessage());
result.setEndTime(System.currentTimeMillis());

// 记录失败指标
paymentDistributedIdMonitorService.recordFailureGeneration(generatorType);

return result;
}
}

/**
* 验证参数
*/
private void validateParameters(String idType, String businessType, String paymentBusinessType,
String generatorType, PaymentDistributedIdResult result) {
if (idType == null || idType.isEmpty()) {
result.setSuccess(false);
result.setError("ID类型不能为空");
result.setEndTime(System.currentTimeMillis());
return;
}

if (businessType == null || businessType.isEmpty()) {
result.setSuccess(false);
result.setError("业务类型不能为空");
result.setEndTime(System.currentTimeMillis());
return;
}

if (paymentBusinessType == null || paymentBusinessType.isEmpty()) {
result.setSuccess(false);
result.setError("支付业务类型不能为空");
result.setEndTime(System.currentTimeMillis());
return;
}

if (generatorType == null || generatorType.isEmpty()) {
result.setSuccess(false);
result.setError("生成器类型不能为空");
result.setEndTime(System.currentTimeMillis());
return;
}
}

/**
* 执行安全处理
* @param idType ID类型
* @param businessType 业务类型
* @param paymentBusinessType 支付业务类型
* @param result 生成结果
* @return 是否通过安全处理
*/
private boolean performSecurityProcess(String idType, String businessType, String paymentBusinessType,
PaymentDistributedIdResult result) {
try {
if (properties.getSecurity().isEnableSecurity()) {
Map<String, Object> securityInfo = paymentDistributedIdSecurityService.performSecurityProcess(
idType, businessType, paymentBusinessType);

result.setSecurityInfo(securityInfo);

if (securityInfo.containsKey("securityStatus") && "FAILED".equals(securityInfo.get("securityStatus"))) {
result.setSuccess(false);
result.setError("安全处理失败");
result.setEndTime(System.currentTimeMillis());
return false;
}

result.setSecurityStatus("SECURED");
}

return true;

} catch (Exception e) {
log.error("安全处理异常", e);
return false;
}
}

/**
* 执行风控检查
* @param idType ID类型
* @param businessType 业务类型
* @param paymentBusinessType 支付业务类型
* @param result 生成结果
* @return 是否通过风控检查
*/
private boolean performRiskCheck(String idType, String businessType, String paymentBusinessType,
PaymentDistributedIdResult result) {
try {
if (properties.getRisk().isEnableRisk()) {
Map<String, Object> riskInfo = paymentDistributedIdRiskService.performRiskCheck(
idType, businessType, paymentBusinessType);

result.setRiskInfo(riskInfo);

if (riskInfo.containsKey("riskLevel") && "HIGH".equals(riskInfo.get("riskLevel"))) {
result.setSuccess(false);
result.setError("风控检查未通过");
result.setEndTime(System.currentTimeMillis());
return false;
}

result.setRiskStatus("RISK_CHECKED");
}

return true;

} catch (Exception e) {
log.error("风控检查异常", e);
return false;
}
}

/**
* 执行合规检查
* @param idType ID类型
* @param businessType 业务类型
* @param paymentBusinessType 支付业务类型
* @param result 生成结果
* @return 是否通过合规检查
*/
private boolean performComplianceCheck(String idType, String businessType, String paymentBusinessType,
PaymentDistributedIdResult result) {
try {
if (properties.getCompliance().isEnableCompliance()) {
Map<String, Object> complianceInfo = new HashMap<>();
complianceInfo.put("idType", idType);
complianceInfo.put("businessType", businessType);
complianceInfo.put("paymentBusinessType", paymentBusinessType);
complianceInfo.put("checkTime", LocalDateTime.now());
complianceInfo.put("complianceStatus", "COMPLIANT");

result.setComplianceInfo(complianceInfo);
result.setComplianceStatus("COMPLIANT");
}

return true;

} catch (Exception e) {
log.error("合规检查异常", e);
return false;
}
}

/**
* 根据生成器类型生成ID
* @param generatorType 生成器类型
* @param idType ID类型
* @param businessType 业务类型
* @param paymentBusinessType 支付业务类型
* @return 生成的ID
*/
private String generateIdByType(String generatorType, String idType, String businessType, String paymentBusinessType) {
switch (generatorType.toUpperCase()) {
case "PAYMENT_SNOWFLAKE":
if (properties.getSnowflake().isEnableSnowflake()) {
return String.valueOf(paymentSnowflakeIdGenerator.nextId());
}
break;
case "PAYMENT_UUID":
if (properties.getUuid().isEnableUuid()) {
return paymentUuidGenerator.generatePaymentUuid();
}
break;
case "PAYMENT_DATABASE":
if (properties.getDatabase().isEnableDatabase()) {
return String.valueOf(paymentDatabaseIdGenerator.nextId());
}
break;
case "PAYMENT_REDIS":
if (properties.getRedis().isEnableRedis()) {
return String.valueOf(paymentRedisIdGenerator.nextId());
}
break;
case "PAYMENT_ZOOKEEPER":
if (properties.getZookeeper().isEnableZookeeper()) {
return String.valueOf(paymentZookeeperIdGenerator.nextId());
}
break;
default:
log.warn("不支持的生成器类型: {}", generatorType);
return null;
}

log.warn("生成器类型 {} 未启用", generatorType);
return null;
}

/**
* 加密ID
* @param id ID
* @param generatorType 生成器类型
* @return 加密后的ID
*/
private String encryptId(String id, String generatorType) {
try {
String encryptionKey = getEncryptionKey(generatorType);
return AESUtil.encrypt(id, encryptionKey);
} catch (Exception e) {
log.error("ID加密异常", e);
return id;
}
}

/**
* 获取加密密钥
* @param generatorType 生成器类型
* @return 加密密钥
*/
private String getEncryptionKey(String generatorType) {
switch (generatorType.toUpperCase()) {
case "PAYMENT_SNOWFLAKE":
return properties.getSnowflake().getEncryptionKey();
case "PAYMENT_UUID":
return properties.getUuid().getEncryptionKey();
case "PAYMENT_DATABASE":
return properties.getDatabase().getEncryptionKey();
case "PAYMENT_REDIS":
return properties.getRedis().getEncryptionKey();
case "PAYMENT_ZOOKEEPER":
return properties.getZookeeper().getEncryptionKey();
default:
return "default-payment-key";
}
}

/**
* 保存支付ID记录
* @param result 生成结果
*/
private void savePaymentIdRecord(PaymentDistributedIdResult result) {
try {
PaymentDistributedIdData data = new PaymentDistributedIdData(
result.getId(),
result.getIdType(),
result.getGeneratorType()
);
data.setBusinessType(result.getBusinessType());
data.setPaymentBusinessType(result.getPaymentBusinessType());
data.setGenerateTime(result.getGenerateTime());
data.setEncryptionStatus(result.getEncryptionStatus());
data.setSecurityStatus(result.getSecurityStatus());
data.setRiskStatus(result.getRiskStatus());
data.setComplianceStatus(result.getComplianceStatus());
data.setExtendedPropertiesMap(result.getExtendedProperties());
data.setSecurityInfo(result.getSecurityInfo());
data.setRiskInfo(result.getRiskInfo());
data.setComplianceInfo(result.getComplianceInfo());

paymentDistributedIdRepository.save(data);

} catch (Exception e) {
log.error("保存支付ID记录异常", e);
}
}

/**
* 批量生成支付分布式ID
* @param idType ID类型
* @param businessType 业务类型
* @param paymentBusinessType 支付业务类型
* @param count 生成数量
* @return 生成结果列表
*/
public List<PaymentDistributedIdResult> batchGeneratePaymentId(String idType, String businessType,
String paymentBusinessType, int count) {
return batchGeneratePaymentId(idType, businessType, paymentBusinessType, count, properties.getDefaultGeneratorType());
}

/**
* 批量生成支付分布式ID(指定生成器)
* @param idType ID类型
* @param businessType 业务类型
* @param paymentBusinessType 支付业务类型
* @param count 生成数量
* @param generatorType 生成器类型
* @return 生成结果列表
*/
public List<PaymentDistributedIdResult> batchGeneratePaymentId(String idType, String businessType,
String paymentBusinessType, int count, String generatorType) {
log.info("批量生成支付分布式ID,ID类型: {}, 业务类型: {}, 支付业务类型: {}, 数量: {}, 生成器类型: {}",
idType, businessType, paymentBusinessType, count, generatorType);

List<PaymentDistributedIdResult> results = new ArrayList<>();

try {
for (int i = 0; i < count; i++) {
PaymentDistributedIdResult result = generatePaymentId(idType, businessType, paymentBusinessType, generatorType);
results.add(result);
}

log.info("批量生成支付分布式ID完成,成功数量: {}",
results.stream().mapToInt(r -> r.isSuccess() ? 1 : 0).sum());

} catch (Exception e) {
log.error("批量生成支付分布式ID异常", e);
}

return results;
}

/**
* 获取支付分布式ID状态
* @return 支付分布式ID状态
*/
public PaymentDistributedIdStatus getPaymentDistributedIdStatus() {
log.info("获取支付分布式ID状态");

try {
return paymentDistributedIdMonitorService.getStatus();
} catch (Exception e) {
log.error("获取支付分布式ID状态异常", e);
return null;
}
}

/**
* 验证支付ID格式
* @param id ID
* @param idType ID类型
* @return 是否有效
*/
public boolean validatePaymentIdFormat(String id, String idType) {
log.info("验证支付ID格式,ID: {}, 类型: {}", id, idType);

try {
if (id == null || id.isEmpty()) {
return false;
}

// 解密ID
String decryptedId = decryptId(id, idType);

switch (idType.toUpperCase()) {
case "PAYMENT_SNOWFLAKE":
return validatePaymentSnowflakeId(decryptedId);
case "PAYMENT_UUID":
return validatePaymentUuid(decryptedId);
case "PAYMENT_DATABASE":
return validatePaymentDatabaseId(decryptedId);
case "PAYMENT_REDIS":
return validatePaymentRedisId(decryptedId);
case "PAYMENT_ZOOKEEPER":
return validatePaymentZookeeperId(decryptedId);
default:
return false;
}

} catch (Exception e) {
log.error("验证支付ID格式异常", e);
return false;
}
}

/**
* 解密ID
* @param id ID
* @param idType ID类型
* @return 解密后的ID
*/
private String decryptId(String id, String idType) {
try {
String encryptionKey = getEncryptionKey(idType);
return AESUtil.decrypt(id, encryptionKey);
} catch (Exception e) {
log.error("ID解密异常", e);
return id;
}
}

/**
* 验证支付雪花算法ID
* @param id ID
* @return 是否有效
*/
private boolean validatePaymentSnowflakeId(String id) {
try {
long idLong = Long.parseLong(id);
return idLong > 0;
} catch (NumberFormatException e) {
return false;
}
}

/**
* 验证支付UUID
* @param id ID
* @return 是否有效
*/
private boolean validatePaymentUuid(String id) {
try {
UUID.fromString(id);
return true;
} catch (IllegalArgumentException e) {
return false;
}
}

/**
* 验证支付数据库ID
* @param id ID
* @return 是否有效
*/
private boolean validatePaymentDatabaseId(String id) {
try {
long idLong = Long.parseLong(id);
return idLong > 0;
} catch (NumberFormatException e) {
return false;
}
}

/**
* 验证支付Redis ID
* @param id ID
* @return 是否有效
*/
private boolean validatePaymentRedisId(String id) {
try {
long idLong = Long.parseLong(id);
return idLong > 0;
} catch (NumberFormatException e) {
return false;
}
}

/**
* 验证支付Zookeeper ID
* @param id ID
* @return 是否有效
*/
private boolean validatePaymentZookeeperId(String id) {
try {
long idLong = Long.parseLong(id);
return idLong > 0;
} catch (NumberFormatException e) {
return false;
}
}
}

3. 高级功能实现

3.1 支付雪花算法ID生成器

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/**
* 支付雪花算法ID生成器
* @author Java实战
*/
@Component
@Slf4j
public class PaymentSnowflakeIdGenerator {

@Autowired
private PaymentDistributedIdProperties properties;

// 开始时间戳 (2021-01-01 00:00:00)
private final long startTimestamp = 1609459200000L;

// 序列号占用的位数
private final long sequenceBits = 10L;

// 机器标识占用的位数
private final long workerIdBits = 5L;

// 数据中心标识占用的位数
private final long datacenterIdBits = 5L;

// 支付标识占用的位数
private final long paymentIdBits = 4L;

// 时间戳占用的位数
private final long timestampBits = 40L;

// 机器ID最大值
private final long maxWorkerId = -1L ^ (-1L << workerIdBits);

// 数据中心ID最大值
private final long maxDatacenterId = -1L ^ (-1L << datacenterIdBits);

// 支付ID最大值
private final long maxPaymentId = -1L ^ (-1L << paymentIdBits);

// 序列号最大值
private final long maxSequence = -1L ^ (-1L << sequenceBits);

// 机器ID左移位数
private final long workerIdShift = sequenceBits;

// 数据中心ID左移位数
private final long datacenterIdShift = sequenceBits + workerIdBits;

// 支付ID左移位数
private final long paymentIdShift = sequenceBits + workerIdBits + datacenterIdBits;

// 时间戳左移位数
private final long timestampShift = sequenceBits + workerIdBits + datacenterIdBits + paymentIdBits;

// 工作机器ID
private long workerId;

// 数据中心ID
private long datacenterId;

// 支付ID
private long paymentId;

// 序列号
private long sequence = 0L;

// 上次生成ID的时间戳
private long lastTimestamp = -1L;

/**
* 构造函数
* @param workerId 工作机器ID
* @param datacenterId 数据中心ID
* @param paymentId 支付ID
*/
public PaymentSnowflakeIdGenerator(long workerId, long datacenterId, long paymentId) {
if (workerId > maxWorkerId || workerId < 0) {
throw new IllegalArgumentException(String.format("worker Id can't be greater than %d or less than 0", maxWorkerId));
}
if (datacenterId > maxDatacenterId || datacenterId < 0) {
throw new IllegalArgumentException(String.format("datacenter Id can't be greater than %d or less than 0", maxDatacenterId));
}
if (paymentId > maxPaymentId || paymentId < 0) {
throw new IllegalArgumentException(String.format("payment Id can't be greater than %d or less than 0", maxPaymentId));
}
this.workerId = workerId;
this.datacenterId = datacenterId;
this.paymentId = paymentId;
}

/**
* 生成下一个ID
* @return 下一个ID
*/
public synchronized long nextId() {
long timestamp = timeGen();

// 如果当前时间小于上一次ID生成的时间戳,说明系统时钟回退过这个时候应当抛出异常
if (timestamp < lastTimestamp) {
throw new RuntimeException(
String.format("Clock moved backwards. Refusing to generate id for %d milliseconds", lastTimestamp - timestamp));
}

// 如果是同一时间生成的,则进行毫秒内序列
if (lastTimestamp == timestamp) {
sequence = (sequence + 1) & maxSequence;
// 毫秒内序列溢出
if (sequence == 0) {
// 阻塞到下一个毫秒,获得新的时间戳
timestamp = tilNextMillis(lastTimestamp);
}
} else {
// 时间戳改变,毫秒内序列重置
sequence = 0L;
}

// 上次生成ID的时间戳
lastTimestamp = timestamp;

// 移位并通过或运算拼到一起组成64位的ID
return ((timestamp - startTimestamp) << timestampShift) //
| (paymentId << paymentIdShift) //
| (datacenterId << datacenterIdShift) //
| (workerId << workerIdShift) //
| sequence;
}

/**
* 阻塞到下一个毫秒,直到获得新的时间戳
* @param lastTimestamp 上次生成ID的时间戳
* @return 当前时间戳
*/
protected long tilNextMillis(long lastTimestamp) {
long timestamp = timeGen();
while (timestamp <= lastTimestamp) {
timestamp = timeGen();
}
return timestamp;
}

/**
* 返回以毫秒为单位的当前时间
* @return 当前时间(毫秒)
*/
protected long timeGen() {
return System.currentTimeMillis();
}

/**
* 解析支付雪花算法ID
* @param id 支付雪花算法ID
* @return 解析结果
*/
public Map<String, Object> parsePaymentId(long id) {
Map<String, Object> result = new HashMap<>();

// 时间戳
long timestamp = (id >> timestampShift) + startTimestamp;
result.put("timestamp", timestamp);
result.put("datetime", new Date(timestamp));

// 支付ID
long paymentId = (id >> paymentIdShift) & maxPaymentId;
result.put("paymentId", paymentId);

// 数据中心ID
long datacenterId = (id >> datacenterIdShift) & maxDatacenterId;
result.put("datacenterId", datacenterId);

// 机器ID
long workerId = (id >> workerIdShift) & maxWorkerId;
result.put("workerId", workerId);

// 序列号
long sequence = id & maxSequence;
result.put("sequence", sequence);

return result;
}

/**
* 获取工作机器ID
* @return 工作机器ID
*/
public long getWorkerId() {
return workerId;
}

/**
* 获取数据中心ID
* @return 数据中心ID
*/
public long getDatacenterId() {
return datacenterId;
}

/**
* 获取支付ID
* @return 支付ID
*/
public long getPaymentId() {
return paymentId;
}

/**
* 获取序列号
* @return 序列号
*/
public long getSequence() {
return sequence;
}

/**
* 获取上次生成ID的时间戳
* @return 上次生成ID的时间戳
*/
public long getLastTimestamp() {
return lastTimestamp;
}

/**
* 获取配置信息
* @return 配置信息
*/
public Map<String, Object> getConfig() {
Map<String, Object> config = new HashMap<>();
config.put("workerId", workerId);
config.put("datacenterId", datacenterId);
config.put("paymentId", paymentId);
config.put("startTimestamp", startTimestamp);
config.put("sequenceBits", sequenceBits);
config.put("workerIdBits", workerIdBits);
config.put("datacenterIdBits", datacenterIdBits);
config.put("paymentIdBits", paymentIdBits);
config.put("timestampBits", timestampBits);
config.put("maxWorkerId", maxWorkerId);
config.put("maxDatacenterId", maxDatacenterId);
config.put("maxPaymentId", maxPaymentId);
config.put("maxSequence", maxSequence);
return config;
}
}

3.2 支付UUID生成器

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/**
* 支付UUID生成器
* @author Java实战
*/
@Component
@Slf4j
public class PaymentUuidGenerator {

@Autowired
private PaymentDistributedIdProperties properties;

/**
* 生成支付UUID
* @return 支付UUID字符串
*/
public String generatePaymentUuid() {
return generatePaymentUuid(properties.getUuid().getVersion());
}

/**
* 生成指定版本的支付UUID
* @param version UUID版本
* @return 支付UUID字符串
*/
public String generatePaymentUuid(String version) {
log.info("生成支付UUID,版本: {}", version);

try {
UUID uuid;

switch (version.toUpperCase()) {
case "UUID1":
uuid = generatePaymentUuid1();
break;
case "UUID3":
uuid = generatePaymentUuid3();
break;
case "UUID4":
uuid = generatePaymentUuid4();
break;
case "UUID5":
uuid = generatePaymentUuid5();
break;
default:
uuid = generatePaymentUuid4();
break;
}

String uuidString = uuid.toString();

// 根据配置处理格式
if (!properties.getUuid().isUseHyphens()) {
uuidString = uuidString.replace("-", "");
}

if (properties.getUuid().isUseUpperCase()) {
uuidString = uuidString.toUpperCase();
}

log.info("支付UUID生成成功,UUID: {}", uuidString);

return uuidString;

} catch (Exception e) {
log.error("支付UUID生成异常", e);
return null;
}
}

/**
* 生成支付UUID1(基于时间戳)
* @return 支付UUID1
*/
private UUID generatePaymentUuid1() {
return UUID.randomUUID(); // Java的UUID.randomUUID()实际上是UUID4,这里简化处理
}

/**
* 生成支付UUID3(基于MD5)
* @return 支付UUID3
*/
private UUID generatePaymentUuid3() {
String namespace = "6ba7b810-9dad-11d1-80b4-00c04fd430c8"; // DNS namespace
String name = "payment-distributed-id";
return UUID.nameUUIDFromBytes((namespace + name).getBytes());
}

/**
* 生成支付UUID4(随机)
* @return 支付UUID4
*/
private UUID generatePaymentUuid4() {
return UUID.randomUUID();
}

/**
* 生成支付UUID5(基于SHA-1)
* @return 支付UUID5
*/
private UUID generatePaymentUuid5() {
String namespace = "6ba7b811-9dad-11d1-80b4-00c04fd430c8"; // DNS namespace
String name = "payment-distributed-id";
return UUID.nameUUIDFromBytes((namespace + name).getBytes());
}

/**
* 生成支付短UUID(8位)
* @return 支付短UUID
*/
public String generatePaymentShortUuid() {
log.info("生成支付短UUID");

try {
UUID uuid = UUID.randomUUID();
String uuidString = uuid.toString().replace("-", "");

// 取前8位
String shortUuid = uuidString.substring(0, 8);

log.info("支付短UUID生成成功,UUID: {}", shortUuid);

return shortUuid;

} catch (Exception e) {
log.error("支付短UUID生成异常", e);
return null;
}
}

/**
* 生成支付数字UUID(纯数字)
* @return 支付数字UUID
*/
public String generatePaymentNumericUuid() {
log.info("生成支付数字UUID");

try {
UUID uuid = UUID.randomUUID();
String uuidString = uuid.toString().replace("-", "");

// 转换为数字
StringBuilder numericUuid = new StringBuilder();
for (char c : uuidString.toCharArray()) {
if (Character.isDigit(c)) {
numericUuid.append(c);
} else {
// 将字母转换为数字
numericUuid.append((int) c % 10);
}
}

String result = numericUuid.toString();

log.info("支付数字UUID生成成功,UUID: {}", result);

return result;

} catch (Exception e) {
log.error("支付数字UUID生成异常", e);
return null;
}
}

/**
* 验证支付UUID格式
* @param uuid 支付UUID字符串
* @return 是否有效
*/
public boolean validatePaymentUuid(String uuid) {
log.info("验证支付UUID格式,UUID: {}", uuid);

try {
if (uuid == null || uuid.isEmpty()) {
return false;
}

// 尝试解析UUID
UUID.fromString(uuid);

log.info("支付UUID格式验证成功");

return true;

} catch (IllegalArgumentException e) {
log.warn("支付UUID格式验证失败", e);
return false;
}
}

/**
* 获取支付UUID版本
* @param uuid 支付UUID字符串
* @return 支付UUID版本
*/
public int getPaymentUuidVersion(String uuid) {
log.info("获取支付UUID版本,UUID: {}", uuid);

try {
UUID uuidObj = UUID.fromString(uuid);
int version = uuidObj.version();

log.info("支付UUID版本获取成功,版本: {}", version);

return version;

} catch (IllegalArgumentException e) {
log.error("获取支付UUID版本异常", e);
return -1;
}
}

/**
* 获取支付UUID变体
* @param uuid 支付UUID字符串
* @return 支付UUID变体
*/
public int getPaymentUuidVariant(String uuid) {
log.info("获取支付UUID变体,UUID: {}", uuid);

try {
UUID uuidObj = UUID.fromString(uuid);
int variant = uuidObj.variant();

log.info("支付UUID变体获取成功,变体: {}", variant);

return variant;

} catch (IllegalArgumentException e) {
log.error("获取支付UUID变体异常", e);
return -1;
}
}

/**
* 获取配置信息
* @return 配置信息
*/
public Map<String, Object> getConfig() {
Map<String, Object> config = new HashMap<>();
config.put("version", properties.getUuid().getVersion());
config.put("useHyphens", properties.getUuid().isUseHyphens());
config.put("useUpperCase", properties.getUuid().isUseUpperCase());
config.put("enableEncryption", properties.getUuid().isEnableEncryption());
config.put("encryptionKey", properties.getUuid().getEncryptionKey());
return config;
}
}

4. 支付分布式ID控制器

4.1 支付分布式ID REST控制器

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/**
* 支付分布式ID REST控制器
* @author Java实战
*/
@RestController
@RequestMapping("/api/payment-distributed-id")
@Slf4j
public class PaymentDistributedIdController {

@Autowired
private PaymentDistributedIdService paymentDistributedIdService;

@Autowired
private PaymentDistributedIdMonitorService paymentDistributedIdMonitorService;

/**
* 生成支付分布式ID
* @param request 生成请求
* @return 生成结果
*/
@PostMapping("/generate")
public ResponseEntity<PaymentDistributedIdResult> generatePaymentId(@RequestBody PaymentDistributedIdGenerateRequest request) {
try {
log.info("接收到生成支付分布式ID请求,ID类型: {}", request.getIdType());

// 参数验证
if (request.getIdType() == null || request.getIdType().isEmpty()) {
return ResponseEntity.badRequest().build();
}

if (request.getBusinessType() == null || request.getBusinessType().isEmpty()) {
return ResponseEntity.badRequest().build();
}

if (request.getPaymentBusinessType() == null || request.getPaymentBusinessType().isEmpty()) {
return ResponseEntity.badRequest().build();
}

PaymentDistributedIdResult result = paymentDistributedIdService.generatePaymentId(
request.getIdType(),
request.getBusinessType(),
request.getPaymentBusinessType(),
request.getGeneratorType()
);

return ResponseEntity.ok(result);

} catch (Exception e) {
log.error("生成支付分布式ID失败", e);
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
}
}

/**
* 批量生成支付分布式ID
* @param request 批量生成请求
* @return 生成结果列表
*/
@PostMapping("/batch-generate")
public ResponseEntity<List<PaymentDistributedIdResult>> batchGeneratePaymentId(@RequestBody PaymentDistributedIdBatchGenerateRequest request) {
try {
log.info("接收到批量生成支付分布式ID请求,ID类型: {}, 数量: {}", request.getIdType(), request.getCount());

if (request.getIdType() == null || request.getIdType().isEmpty()) {
return ResponseEntity.badRequest().build();
}

if (request.getBusinessType() == null || request.getBusinessType().isEmpty()) {
return ResponseEntity.badRequest().build();
}

if (request.getPaymentBusinessType() == null || request.getPaymentBusinessType().isEmpty()) {
return ResponseEntity.badRequest().build();
}

if (request.getCount() <= 0 || request.getCount() > 1000) {
return ResponseEntity.badRequest().build();
}

List<PaymentDistributedIdResult> results = paymentDistributedIdService.batchGeneratePaymentId(
request.getIdType(),
request.getBusinessType(),
request.getPaymentBusinessType(),
request.getCount(),
request.getGeneratorType()
);

return ResponseEntity.ok(results);

} catch (Exception e) {
log.error("批量生成支付分布式ID失败", e);
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
}
}

/**
* 验证支付ID格式
* @param id ID
* @param idType ID类型
* @return 是否有效
*/
@GetMapping("/validate")
public ResponseEntity<Boolean> validatePaymentIdFormat(
@RequestParam String id,
@RequestParam String idType) {
try {
log.info("接收到验证支付ID格式请求,ID: {}, 类型: {}", id, idType);

if (id == null || id.isEmpty()) {
return ResponseEntity.badRequest().build();
}

if (idType == null || idType.isEmpty()) {
return ResponseEntity.badRequest().build();
}

boolean valid = paymentDistributedIdService.validatePaymentIdFormat(id, idType);

return ResponseEntity.ok(valid);

} catch (Exception e) {
log.error("验证支付ID格式失败", e);
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
}
}

/**
* 获取支付分布式ID状态
* @return 支付分布式ID状态
*/
@GetMapping("/status")
public ResponseEntity<PaymentDistributedIdStatus> getPaymentDistributedIdStatus() {
try {
log.info("接收到获取支付分布式ID状态请求");

PaymentDistributedIdStatus status = paymentDistributedIdService.getPaymentDistributedIdStatus();

return ResponseEntity.ok(status);

} catch (Exception e) {
log.error("获取支付分布式ID状态失败", e);
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
}
}

/**
* 获取支付分布式ID监控指标
* @return 监控指标
*/
@GetMapping("/metrics")
public ResponseEntity<PaymentDistributedIdMetrics> getPaymentDistributedIdMetrics() {
try {
PaymentDistributedIdMetrics metrics = paymentDistributedIdMonitorService.getMetrics();
return ResponseEntity.ok(metrics);
} catch (Exception e) {
log.error("获取支付分布式ID监控指标失败", e);
return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
}
}

/**
* 健康检查
* @return 健康状态
*/
@GetMapping("/health")
public ResponseEntity<Map<String, Object>> healthCheck() {
try {
Map<String, Object> health = new HashMap<>();

PaymentDistributedIdStatus status = paymentDistributedIdService.getPaymentDistributedIdStatus();

health.put("status", status != null && status.isHealthy() ? "UP" : "DOWN");
health.put("timestamp", System.currentTimeMillis());
health.put("details", status);

return ResponseEntity.ok(health);

} catch (Exception e) {
log.error("健康检查失败", e);

Map<String, Object> health = new HashMap<>();
health.put("status", "DOWN");
health.put("timestamp", System.currentTimeMillis());
health.put("error", e.getMessage());

return ResponseEntity.status(HttpStatus.SERVICE_UNAVAILABLE).body(health);
}
}
}

/**
* 支付分布式ID生成请求类
* @author Java实战
*/
@Data
public class PaymentDistributedIdGenerateRequest {

/**
* ID类型
*/
@NotBlank(message = "ID类型不能为空")
private String idType;

/**
* 业务类型
*/
@NotBlank(message = "业务类型不能为空")
private String businessType;

/**
* 支付业务类型
*/
@NotBlank(message = "支付业务类型不能为空")
private String paymentBusinessType;

/**
* 生成器类型
*/
private String generatorType;

/**
* 扩展属性
*/
private Map<String, Object> extendedProperties;

public PaymentDistributedIdGenerateRequest() {
this.extendedProperties = new HashMap<>();
}
}

/**
* 支付分布式ID批量生成请求类
* @author Java实战
*/
@Data
public class PaymentDistributedIdBatchGenerateRequest {

/**
* ID类型
*/
@NotBlank(message = "ID类型不能为空")
private String idType;

/**
* 业务类型
*/
@NotBlank(message = "业务类型不能为空")
private String businessType;

/**
* 支付业务类型
*/
@NotBlank(message = "支付业务类型不能为空")
private String paymentBusinessType;

/**
* 生成数量
*/
@Min(value = 1, message = "生成数量必须大于0")
@Max(value = 1000, message = "生成数量不能超过1000")
private int count;

/**
* 生成器类型
*/
private String generatorType;

/**
* 扩展属性
*/
private Map<String, Object> extendedProperties;

public PaymentDistributedIdBatchGenerateRequest() {
this.extendedProperties = new HashMap<>();
}
}

5. 总结

5.1 支付分布式ID最佳实践

  1. 合理选择生成方案: 根据支付业务场景选择合适的分布式ID生成方案
  2. 性能优化: 优化ID生成性能,减少延迟
  3. 高可用设计: 确保ID生成服务的高可用性
  4. 监控告警: 实时监控ID生成状态和性能
  5. 安全考虑: 避免暴露支付业务信息
  6. 资金安全: 确保资金交易的安全性
  7. 交易追踪: 支持完整的交易追踪
  8. 风险控制: 防范支付风险

5.2 性能优化建议

  • 缓存策略: 合理使用缓存减少数据库访问
  • 批量生成: 支持批量ID生成提高效率
  • 连接池优化: 优化数据库连接池配置
  • 异步处理: 异步处理非关键路径
  • 负载均衡: 合理分配ID生成负载
  • 加密优化: 优化加密算法性能

5.3 运维管理要点

  • 实时监控: 监控ID生成状态和性能
  • 故障处理: 建立完善的故障处理机制
  • 性能调优: 根据监控数据优化性能
  • 日志管理: 完善日志记录和分析
  • 容量规划: 合理规划ID生成容量
  • 安全管理: 确保支付安全
  • 风控管理: 完善风险控制机制
  • 合规管理: 确保符合支付监管要求

通过本文的支付分布式ID Java实战指南,您可以掌握支付级分布式ID生成方案的原理、实现细节、性能优化技巧以及在企业级支付应用中的最佳实践,构建高效、可靠、安全的支付分布式ID生成系统!