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@Service
public class DatabaseWriteService {
@Autowired
@Qualifier("databaseWriteExecutor")
private ThreadPoolExecutor databaseWriteExecutor;
@Autowired
@Qualifier("databaseBatchWriteExecutor")
private ThreadPoolExecutor databaseBatchWriteExecutor;
@Autowired
private JdbcTemplate jdbcTemplate;
@Autowired
private ThreadPoolMonitor threadPoolMonitor;
private static final Logger logger = LoggerFactory.getLogger(DatabaseWriteService.class);
public CompletableFuture<WriteResult> writeSingleRecord(Map<String, Object> data) {
logger.info("开始并发写入单条记录，线程池状态: {}", getThreadPoolStatus());
return CompletableFuture.supplyAsync(() -> {
try {
int rows = executeInsert(data);
WriteResult result = new WriteResult();
result.setSuccess(true);
result.setRowsAffected(rows);
result.setThreadName(Thread.currentThread().getName());
result.setExecutionTime(System.currentTimeMillis());
logger.info("单条记录写入成功，线程: {}, 影响行数: {}",
Thread.currentThread().getName(), rows);
return result;
} catch (Exception e) {
logger.error("单条记录写入失败，线程: {}", Thread.currentThread().getName(), e);
WriteResult result = new WriteResult();
result.setSuccess(false);
result.setError(e.getMessage());
result.setThreadName(Thread.currentThread().getName());
result.setExecutionTime(System.currentTimeMillis());
return result;
}
}, databaseWriteExecutor);
}
public CompletableFuture<List<WriteResult>> writeMultipleRecords(List<Map<String, Object>> dataList) {
logger.info("开始并发写入多条记录，数量: {}, 线程池状态: {}", dataList.size(), getThreadPoolStatus());
List<CompletableFuture<WriteResult>> futures = new ArrayList<>();
for (Map<String, Object> data : dataList) {
CompletableFuture<WriteResult> future = writeSingleRecord(data);
futures.add(future);
}
return CompletableFuture.allOf(futures.toArray(new CompletableFuture[0]))
.thenApply(v -> {
List<WriteResult> results = new ArrayList<>();
for (CompletableFuture<WriteResult> future : futures) {
try {
results.add(future.get());
} catch (Exception e) {
logger.error("获取写入结果失败", e);
}
}
return results;
});
}
public CompletableFuture<BatchWriteResult> batchWriteRecords(List<Map<String, Object>> dataList, int batchSize) {
logger.info("开始批量并发写入，总数量: {}, 批次大小: {}, 线程池状态: {}",
dataList.size(), batchSize, getThreadPoolStatus());
BatchWriteResult result = new BatchWriteResult();
result.setTotalCount(dataList.size());
result.setBatchSize(batchSize);
result.setStartTime(System.currentTimeMillis());
List<List<Map<String, Object>>> batches = partitionList(dataList, batchSize);
List<CompletableFuture<WriteResult>> futures = new ArrayList<>();
for (int i = 0; i < batches.size(); i++) {
final int batchIndex = i;
final List<Map<String, Object>> batch = batches.get(i);
CompletableFuture<WriteResult> future = CompletableFuture.supplyAsync(() -> {
try {
int rows = executeBatchInsert(batch);
WriteResult writeResult = new WriteResult();
writeResult.setSuccess(true);
writeResult.setRowsAffected(rows);
writeResult.setThreadName(Thread.currentThread().getName());
writeResult.setExecutionTime(System.currentTimeMillis());
logger.info("批次 {} 写入成功，线程: {}, 影响行数: {}",
batchIndex + 1, Thread.currentThread().getName(), rows);
return writeResult;
} catch (Exception e) {
logger.error("批次 {} 写入失败，线程: {}", batchIndex + 1, Thread.currentThread().getName(), e);
WriteResult writeResult = new WriteResult();
writeResult.setSuccess(false);
writeResult.setError(e.getMessage());
writeResult.setThreadName(Thread.currentThread().getName());
writeResult.setExecutionTime(System.currentTimeMillis());
return writeResult;
}
}, databaseBatchWriteExecutor);
futures.add(future);
}
return CompletableFuture.allOf(futures.toArray(new CompletableFuture[0]))
.thenApply(v -> {
int successCount = 0;
int failureCount = 0;
int totalRowsAffected = 0;
for (CompletableFuture<WriteResult> future : futures) {
try {
WriteResult writeResult = future.get();
if (writeResult.isSuccess()) {
successCount++;
totalRowsAffected += writeResult.getRowsAffected();
} else {
failureCount++;
}
} catch (Exception e) {
logger.error("获取批量写入结果失败", e);
failureCount++;
}
}
result.setSuccessCount(successCount);
result.setFailureCount(failureCount);
result.setTotalRowsAffected(totalRowsAffected);
result.setEndTime(System.currentTimeMillis());
logger.info("批量并发写入完成，成功: {}, 失败: {}, 总影响行数: {}, 耗时: {}ms",
successCount, failureCount, totalRowsAffected, result.getDuration());
return result;
});
}
private int executeInsert(Map<String, Object> data) {
String sql = "INSERT INTO user_data (id, name, email, age, created_at) VALUES (?, ?, ?, ?, ?)";
return jdbcTemplate.update(sql,
data.get("id"),
data.get("name"),
data.get("email"),
data.get("age"),
new Timestamp(System.currentTimeMillis())
);
}
private int executeBatchInsert(List<Map<String, Object>> dataList) {
String sql = "INSERT INTO user_data (id, name, email, age, created_at) VALUES (?, ?, ?, ?, ?)";
int[] results = jdbcTemplate.batchUpdate(sql, new BatchPreparedStatementSetter() {
@Override
public void setValues(PreparedStatement ps, int i) throws SQLException {
Map<String, Object> data = dataList.get(i);
ps.setObject(1, data.get("id"));
ps.setObject(2, data.get("name"));
ps.setObject(3, data.get("email"));
ps.setObject(4, data.get("age"));
ps.setTimestamp(5, new Timestamp(System.currentTimeMillis()));
}
@Override
public int getBatchSize() {
return dataList.size();
}
});
return Arrays.stream(results).sum();
}
private <T> List<List<T>> partitionList(List<T> list, int batchSize) {
List<List<T>> partitions = new ArrayList<>();
for (int i = 0; i < list.size(); i += batchSize) {
int end = Math.min(i + batchSize, list.size());
partitions.add(list.subList(i, end));
}
return partitions;
}
private String getThreadPoolStatus() {
return String.format("核心线程数: %d, 最大线程数: %d, 当前线程数: %d, 活跃线程数: %d, 队列大小: %d",
databaseWriteExecutor.getCorePoolSize(),
databaseWriteExecutor.getMaximumPoolSize(),
databaseWriteExecutor.getPoolSize(),
databaseWriteExecutor.getActiveCount(),
databaseWriteExecutor.getQueue().size()
);
}
}
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