优化:基于阿里巴巴 Java 开发手册(黄山版)优化 ThreadLocal 使用
1.编程规约>并发处理>第6条: 【强制】必须回收自定义的 ThreadLocal 变量记录的当前线程的值,尤其在线程池场景下,线程经常会 被复用,如果不清理自定义的 ThreadLocal 变量,可能会影响后续业务逻辑和造成内存泄露等问题。 尽量在代码中使用 try-finally 块进行回收。
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@ -120,11 +120,12 @@ public class LogInterceptor implements HandlerInterceptor {
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*/
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private LogDO logElapsedTimeAndException() {
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LogContext logContext = LogContextHolder.get();
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try {
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if (logContext != null) {
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LogContextHolder.remove();
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LogDO logDO = new LogDO();
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logDO.setCreateTime(logContext.getCreateTime());
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logDO.setElapsedTime(System.currentTimeMillis() - LocalDateTimeUtil.toEpochMilli(logDO.getCreateTime()));
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logDO
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.setElapsedTime(System.currentTimeMillis() - LocalDateTimeUtil.toEpochMilli(logDO.getCreateTime()));
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logDO.setStatus(LogStatusEnum.SUCCESS);
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// 记录错误信息(非未知异常不记录异常详情,只记录错误信息)
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@ -141,6 +142,9 @@ public class LogInterceptor implements HandlerInterceptor {
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}
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return logDO;
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}
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} finally {
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LogContextHolder.remove();
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}
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return null;
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}
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