{"id":105245,"date":"2026-09-15T06:48:22","date_gmt":"2026-09-14T22:48:22","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/105245.html"},"modified":"2026-09-15T06:48:22","modified_gmt":"2026-09-14T22:48:22","slug":"java-%e7%ba%bf%e7%a8%8b%e6%b1%a0%e6%97%a5%e5%bf%97%ef%bc%8c%e5%a6%82%e4%bd%95%e7%94%a8-traceid-%e5%85%b3%e8%81%94%e5%90%8c%e4%b8%80%e6%ac%a1%e8%af%b7%e6%b1%82%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/105245.html","title":{"rendered":"Java \u7ebf\u7a0b\u6c60\u65e5\u5fd7\uff0c\u5982\u4f55\u7528 traceId \u5173\u8054\u540c\u4e00\u6b21\u8bf7\u6c42\uff1f"},"content":{"rendered":"

Java \u7ebf\u7a0b\u6c60\u65e5\u5fd7，\u5982\u4f55\u7528 traceId \u5173\u8054\u540c\u4e00\u6b21\u8bf7\u6c42？<\/h2>\n

\u5f00\u7bc7<\/h3>\n

\u63a5\u53e3\u6536\u5230\u8bf7\u6c42\u540e，\u5e38\u4f1a\u628a\u8017\u65f6\u4efb\u52a1\u4ea4\u7ed9\u7ebf\u7a0b\u6c60\u3002\u82e5\u4efb\u52a1\u65e5\u5fd7\u6ca1\u5e26\u4e0a\u63a5\u53e3\u91cc\u7684\u8bf7\u6c42\u7f16\u53f7，\u6392\u67e5\u95ee\u9898\u65f6\u5c31\u5f88\u96be\u628a\u4e24\u8fb9\u65e5\u5fd7\u5bf9\u8d77\u6765\u3002\u8fd9\u4e2a\u7f16\u53f7\u53eb traceId，\u4e0b\u9762\u770b\u600e\u6837\u628a\u5b83\u4f20\u7ed9\u5f02\u6b65\u4efb\u52a1，\u5e76\u5728\u4efb\u52a1\u7ed3\u675f\u540e\u6b63\u786e\u6e05\u7406\u3002<\/p>\n

\u73af\u5883：JDK 21\u3001Spring Boot 3（Spring Framework 6）\u3001SLF4J 2\u3001Logback 1\u3002\u793a\u4f8b\u4f7f\u7528\u5e94\u7528\u81ea\u6709\u7684\u7ebf\u7a0b\u6c60\u548c\u4e0a\u4e0b\u6587\u5de5\u5177，\u5c55\u793a\u5173\u952e\u65b9\u6cd5\u4e0e\u8c03\u7528，\u4e0d\u662f\u53ea\u4f9d\u8d56 JDK \u7684\u5b8c\u6574\u7a0b\u5e8f\u3002<\/p>\n

\u5751\u70b9<\/h3>\n

\u5751\u70b9\u4e00：\u63a5\u53e3\u91cc\u6709\u8bf7\u6c42\u7f16\u53f7，\u6362\u4e2a\u7ebf\u7a0b\u5c31\u8bfb\u4e0d\u5230\u4e86<\/h4>\n

\u8fd9\u91cc\u7684 ThreadContext \u7528 ThreadLocal \u4fdd\u5b58\u6bcf\u4e2a\u7ebf\u7a0b\u7684\u6570\u636e\u3002MDC \u5219\u8d1f\u8d23\u7ed9\u65e5\u5fd7\u9644\u5e26\u7f16\u53f7\u7b49\u5b57\u6bb5；Logback \u4e2d\u7684 MDC \u4e5f\u6309\u7ebf\u7a0b\u4fdd\u5b58，\u6362\u4e2a\u7ebf\u7a0b\u4e0d\u4f1a\u81ea\u52a8\u5e26\u8fc7\u53bb\u3002Logback MDC \u8bf4\u660e<\/p>\n

\u4e0b\u9762\u7ed9\u8bf7\u6c42\u8bbe\u7f6e\u7f16\u53f7，\u518d\u7528\u666e\u901a\u7ebf\u7a0b\u6c60\u8bfb\u53d6\u3002\u4e24\u5904\u8f93\u51fa\u90fd\u662f\u7a7a：<\/p>\n

\/\/ \u5bf9\u7167\u793a\u4f8b：\u666e\u901a\u7ebf\u7a0b\u6c60\u6ca1\u6709\u914d\u7f6e\u4e0a\u4e0b\u6587\u4f20\u9012\u3002<\/span>
\n try<\/span> (<\/span>ExecutorService<\/span> pool =<\/span> Executors<\/span>.<\/span>newSingleThreadExecutor<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
\n ThreadContext<\/span>.<\/span>setTraceId<\/span>(<\/span>"req-A"<\/span>)<\/span>;<\/span>
\n pool.<\/span>submit<\/span>(<\/span>(<\/span>)<\/span> -><\/span> {<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>ThreadContext<\/span>.<\/span>getTraceId<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ null<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>MDC<\/span>.<\/span>get<\/span>(<\/span>ThreadContext<\/span>.<\/span>TRACE_ID<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ null<\/span>
\n }<\/span>)<\/span>.<\/span>get<\/span>(<\/span>5<\/span>,<\/span> TimeUnit<\/span>.<\/span>SECONDS<\/span>)<\/span>;<\/span>
\n ThreadContext<\/span>.<\/span>clear<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

\u5751\u70b9\u4e8c：\u4e0d\u5206\u7ebf\u7a0b\u5730\u6e05\u7406，\u63a5\u53e3\u540e\u7eed\u65e5\u5fd7\u4e5f\u4e22\u4e86\u7f16\u53f7<\/h4>\n

\u914d\u7f6e\u4e86 CallerRunsPolicy \u65f6，\u7ebf\u7a0b\u6c60\u5fd9\u6ee1\u4e14\u672a\u5173\u95ed，\u4f1a\u8ba9\u63d0\u4ea4\u4efb\u52a1\u7684\u7ebf\u7a0b\u81ea\u5df1\u6267\u884c\u3002\u6b64\u65f6\u82e5\u6e05\u7406\u7f16\u53f7，\u6e05\u6389\u7684\u5c31\u662f\u63a5\u53e3\u5f53\u524d\u8fd8\u5728\u7528\u7684\u90a3\u4efd\u3002JDK \u62d2\u7edd\u7b56\u7565\u8bf4\u660e<\/p>\n

\u7528\u76f4\u63a5\u6267\u884c\u4efb\u52a1\u7684\u65b9\u5f0f，\u5c31\u80fd\u770b\u51fa\u8fd9\u4e2a\u95ee\u9898：<\/p>\n

\/\/ \u5bf9\u7167\u793a\u4f8b：\u6a21\u62df\u4efb\u52a1\u76f4\u63a5\u5728\u63d0\u4ea4\u7ebf\u7a0b\u6267\u884c，\u5374\u4ecd\u7136\u6e05\u7406\u4e0a\u4e0b\u6587\u3002<\/span>
\n ThreadContext<\/span>.<\/span>setTraceId<\/span>(<\/span>"req-A"<\/span>)<\/span>;<\/span>
\n Runnable<\/span> wrong =<\/span> (<\/span>)<\/span> -><\/span> {<\/span>
\n try<\/span> {<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>ThreadContext<\/span>.<\/span>getTraceId<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ req-A<\/span>
\n }<\/span> finally<\/span> {<\/span>
\n ThreadContext<\/span>.<\/span>clear<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>
\n }<\/span>;<\/span>
\n wrong.<\/span>run<\/span>(<\/span>)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>ThreadContext<\/span>.<\/span>getTraceId<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ null，\u540e\u7eed\u8bf7\u6c42\u65e5\u5fd7\u4e22\u4e86\u7f16\u53f7<\/span><\/p>\n

\u6b63\u786e\u5199\u6cd5<\/h3>\n

\u907f\u5751\u4e00：\u63d0\u4ea4\u65f6\u590d\u5236\u7f16\u53f7，\u8ba9\u7ebf\u7a0b\u6c60\u7edf\u4e00\u4f20\u9012<\/h4>\n

\u63a5\u5165\u4f4d\u7f6e\u5728\u7ebf\u7a0b\u6c60\u521b\u5efa\u5904\u3002ThreadPoolManager.createThreadPool \u5728\u521d\u59cb\u5316\u6267\u884c\u5668\u4e4b\u524d，\u8bbe\u7f6e\u4e86\u4e0b\u9762\u8fd9\u884c：<\/p>\n

\/\/ \u4efb\u52a1\u88c5\u9970\u5668（\u5982\u4f20\u9012 MDC \u4e0a\u4e0b\u6587）<\/span>
\n executor.<\/span>setTaskDecorator<\/span>(<\/span>RunnableWrapper<\/span>::<\/span>of<\/span>)<\/span>;<\/span><\/p>\n

\u4efb\u52a1\u88c5\u9970\u5668\u5c31\u662f\u7ed9\u539f\u4efb\u52a1\u5305\u4e00\u5c42，\u5728\u6267\u884c\u524d\u540e\u8865\u5145\u5904\u7406，\u4e1a\u52a1\u4ee3\u7801\u4ecd\u7136\u6b63\u5e38\u63d0\u4ea4\u4efb\u52a1\u3002RunnableWrapper \u662f\u8fd9\u91cc\u7684\u4efb\u52a1\u5305\u88c5\u7c7b，\u521b\u5efa\u65f6\u8bb0\u4f4f\u5f53\u524d\u7ebf\u7a0b，\u5e76\u590d\u5236\u5f53\u65f6\u7684\u6570\u636e：<\/p>\n

private<\/span> Runnable<\/span> runnable;<\/span>
\n private<\/span> Thread<\/span> mainThread;<\/span>
\n private<\/span> Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span><\/span> threadContextMap;<\/span><\/p>\n

public<\/span> RunnableWrapper<\/span>(<\/span>Runnable<\/span> runnable)<\/span> {<\/span>
\n this<\/span>.<\/span>runnable =<\/span> runnable;<\/span>
\n this<\/span>.<\/span>mainThread =<\/span> Thread<\/span>.<\/span>currentThread<\/span>(<\/span>)<\/span>;<\/span>
\n \/\/ \u5728\u4efb\u52a1\u63d0\u4ea4\u7ebf\u7a0b\u4e2d\u521b\u5efa\u72ec\u7acb\u5feb\u7167，\u4e0d\u80fd\u5ef6\u8fdf\u5230\u5de5\u4f5c\u7ebf\u7a0b\u6267\u884c\u65f6\u518d\u8bfb\u53d6<\/span>
\n this<\/span>.<\/span>threadContextMap =<\/span> ThreadContext<\/span>.<\/span>getCopyOfContextMap<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

mainThread \u6307\u521b\u5efa\u5305\u88c5\u5668\u7684\u7ebf\u7a0b，\u4e0d\u4e00\u5b9a\u662f Java \u7684 main \u7ebf\u7a0b\u3002\u5305\u88c5\u5668\u8981\u5728\u63d0\u4ea4\u4efb\u52a1\u65f6\u521b\u5efa，\u8fdb\u5165\u5de5\u4f5c\u7ebf\u7a0b\u540e\u518d\u590d\u5236\u5c31\u665a\u4e86\u3002<\/p>\n

\u590d\u5236\u65b9\u6cd5\u8fd4\u56de\u72ec\u7acb Map，\u56e0\u6b64\u63d0\u4ea4\u540e\u518d\u4fee\u6539\u8bf7\u6c42\u7ebf\u7a0b\u91cc\u7684\u7f16\u53f7，\u4e0d\u4f1a\u6539\u6389\u5df2\u4fdd\u5b58\u7684\u503c：<\/p>\n

public<\/span> static<\/span> Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span><\/span> getCopyOfContextMap<\/span>(<\/span>)<\/span> {<\/span>
\n \/\/ \u521b\u5efa\u72ec\u7acbMap\u4f5c\u4e3a\u5f02\u6b65\u4efb\u52a1\u5feb\u7167；\u5f53\u524d\u6240\u6709value\u5747\u4e3a\u4e0d\u53ef\u53d8String，\u6d45\u62f7\u8d1d\u5373\u53ef\u5b89\u5168\u8de8\u7ebf\u7a0b<\/span>
\n return<\/span> new<\/span> HashMap<\/span><<\/span>><\/span><\/span>(<\/span>CONTEXT<\/span>.<\/span>get<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

\u8fd9\u91cc\u7684\u5b57\u6bb5\u503c\u90fd\u662f\u4e0d\u53ef\u53d8\u7684 String\u3002\u82e5\u4ee5\u540e\u653e\u5165\u53ef\u53d8\u5bf9\u8c61，\u4ec5\u590d\u5236 Map \u4e0d\u80fd\u9694\u79bb\u5bf9\u8c61\u5185\u90e8\u7684\u4fee\u6539\u3002<\/p>\n

\u4e1a\u52a1\u600e\u4e48\u7528：\u63d0\u4ea4\u4efb\u52a1，\u4e0d\u7528\u6bcf\u6b21\u624b\u52a8\u4f20\u7f16\u53f7<\/h4>\n

\u4e0b\u9762\u8c03\u7528\u5df2\u7ecf\u914d\u7f6e\u597d\u88c5\u9970\u5668\u7684\u5de5\u5382\u3002\u4efb\u52a1\u91cc\u7684\u7f16\u53f7\u548c\u8bf7\u6c42\u7ebf\u7a0b\u4e00\u81f4，\u767b\u5f55\u7528\u6237 ID \u4e5f\u80fd\u8bfb\u53d6：<\/p>\n

\/\/ \u8c03\u7528\u793a\u4f8b：\u5de5\u5382\u5df2\u914d\u7f6e\u88c5\u9970\u5668，\u4e1a\u52a1\u4efb\u52a1\u4e0d\u9700\u8981\u518d\u624b\u52a8\u5305\u88c5\u3002<\/span>
\n ThreadPoolTaskExecutor<\/span> pool =<\/span> ThreadPoolManager<\/span>.<\/span>createThreadPool<\/span>(<\/span>
\n "trace-demo"<\/span>,<\/span> 1<\/span>,<\/span> 8<\/span>,<\/span> RejectedPolicyEnum<\/span>.<\/span>ABORT_POLICY<\/span>)<\/span>;<\/span>
\n try<\/span> {<\/span>
\n ThreadContext<\/span>.<\/span>setTraceId<\/span>(<\/span>"req-A"<\/span>)<\/span>;<\/span>
\n ThreadContext<\/span>.<\/span>setLoginUserId<\/span>(<\/span>"user-7"<\/span>)<\/span>;<\/span>
\n pool.<\/span>submit<\/span>(<\/span>(<\/span>)<\/span> -><\/span> {<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>ThreadContext<\/span>.<\/span>getTraceId<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ req-A<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>MDC<\/span>.<\/span>get<\/span>(<\/span>ThreadContext<\/span>.<\/span>TRACE_ID<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ req-A<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>ThreadContext<\/span>.<\/span>getLoginUserId<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ user-7<\/span>
\n }<\/span>)<\/span>.<\/span>get<\/span>(<\/span>5<\/span>,<\/span> TimeUnit<\/span>.<\/span>SECONDS<\/span>)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>ThreadContext<\/span>.<\/span>getTraceId<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ req-A，\u63d0\u4ea4\u7ebf\u7a0b\u672a\u88ab\u6e05\u7406<\/span>
\n }<\/span> finally<\/span> {<\/span>
\n ThreadContext<\/span>.<\/span>clear<\/span>(<\/span>)<\/span>;<\/span>
\n pool.<\/span>shutdown<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

ThreadPoolManager\u3001ThreadContext\u3001RunnableWrapper \u548c RejectedPolicyEnum \u90fd\u662f\u5e94\u7528\u81ea\u6709\u7c7b；ThreadPoolTaskExecutor \u548c setTaskDecorator \u6765\u81ea Spring\u3002\u63a5\u5165\u5df2\u6709\u5de5\u7a0b\u65f6，\u8981\u540c\u65f6\u5177\u5907\u5305\u88c5\u5668\u3001\u4e0a\u4e0b\u6587\u5de5\u5177\u53ca\u76f8\u5173\u4f9d\u8d56，\u4e0d\u80fd\u53ea\u590d\u5236\u914d\u7f6e\u884c\u3002<\/p>\n

\u793a\u4f8b\u521b\u5efa\u548c\u5173\u95ed\u7ebf\u7a0b\u6c60\u662f\u4e3a\u4e86\u89c2\u5bdf\u7ed3\u679c；\u4e1a\u52a1\u4e2d\u5e94\u590d\u7528\u5df2\u914d\u7f6e\u7684\u7ebf\u7a0b\u6c60，\u4e0d\u8981\u6bcf\u6765\u4e00\u4e2a\u8bf7\u6c42\u5c31\u521b\u5efa\u4e00\u6b21\u3002get(5, TimeUnit.SECONDS) \u53ea\u7528\u4e8e\u7b49\u5f85\u5e76\u6838\u5bf9\u8f93\u51fa，\u4e0d\u662f\u5f02\u6b65\u4e1a\u52a1\u5fc5\u987b\u963b\u585e\u7b49\u5f85\u7684\u5199\u6cd5\u3002<\/p>\n

\u907f\u5751\u4e8c：\u5de5\u4f5c\u7ebf\u7a0b\u7528\u5b8c\u6e05\u7406，\u8bf7\u6c42\u7ebf\u7a0b\u7ee7\u7eed\u4fdd\u7559<\/h4>\n

\u7f16\u53f7\u590d\u5236\u597d\u4e86，\u4ec0\u4e48\u65f6\u5019\u653e\u56de\u53bb？run() \u5148\u5224\u65ad\u5b9e\u9645\u6267\u884c\u4efb\u52a1\u7684\u662f\u54ea\u4e2a\u7ebf\u7a0b：<\/p>\n

@Override<\/span>
\n public<\/span> void<\/span> run<\/span>(<\/span>)<\/span> {<\/span>
\n \/\/ CallerRunsPolicy \u53ef\u80fd\u76f4\u63a5\u5728\u63d0\u4ea4\u7ebf\u7a0b\u6267\u884c，\u6b64\u65f6\u6cbf\u7528\u7ebf\u7a0b\u4e0a\u5df2\u6709\u7684\u540c\u4e00\u4efd\u4e0a\u4e0b\u6587，\u4e14\u4e0d\u80fd\u6267\u884c\u6e05\u7406<\/span>
\n if<\/span> (<\/span>Objects<\/span>.<\/span>equals<\/span>(<\/span>mainThread,<\/span> Thread<\/span>.<\/span>currentThread<\/span>(<\/span>)<\/span>)<\/span>)<\/span> {<\/span>
\n runnable.<\/span>run<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span> else<\/span> {<\/span>
\n workerRun<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span>
\n }<\/span><\/p>\n

\/**
\n * \u7ebf\u7a0b\u6c60\u4e2d\u7684\u5de5\u4f5c\u7ebf\u7a0b\u6267\u884c
\n *\/<\/span>
\n private<\/span> void<\/span> workerRun<\/span>(<\/span>)<\/span> {<\/span>
\n try<\/span> {<\/span>
\n \/\/ \u6062\u590d\u63d0\u4ea4\u4efb\u52a1\u65f6\u6355\u83b7\u7684\u5b8c\u6574\u4e0a\u4e0b\u6587<\/span>
\n ThreadContext<\/span>.<\/span>putContextMap<\/span>(<\/span>threadContextMap)<\/span>;<\/span>
\n runnable.<\/span>run<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span> finally<\/span> {<\/span>
\n \/\/ \u7ebf\u7a0b\u6c60\u4f1a\u590d\u7528\u5de5\u4f5c\u7ebf\u7a0b，\u4efb\u52a1\u7ed3\u675f\u540e\u5fc5\u987b\u6e05\u7406，\u907f\u514d\u6c61\u67d3\u4e0b\u4e00\u4e2a\u4efb\u52a1<\/span>
\n ThreadContext<\/span>.<\/span>clear<\/span>(<\/span>)<\/span>;<\/span>
\n threadContextMap.<\/span>clear<\/span>(<\/span>)<\/span>;<\/span>
\n threadContextMap =<\/span> null<\/span>;<\/span>
\n runnable =<\/span> null<\/span>;<\/span>
\n mainThread =<\/span> null<\/span>;<\/span>
\n }<\/span>
\n }<\/span><\/p>\n

\u5de5\u4f5c\u7ebf\u7a0b\u5148\u6062\u590d\u6570\u636e，\u518d\u6267\u884c\u4efb\u52a1，\u6700\u540e\u6e05\u7406\u3002\u7ebf\u7a0b\u6c60\u4f1a\u590d\u7528\u7ebf\u7a0b，\u6e05\u7406\u80fd\u907f\u514d\u4e0b\u4e00\u9879\u4efb\u52a1\u6cbf\u7528\u8fd9\u6b21\u8bf7\u6c42\u7684\u7f16\u53f7；finally \u8ba9\u4e1a\u52a1\u629b\u5f02\u5e38\u65f6\u4e5f\u8d70\u8fd9\u4e00\u6b65\u3002<\/p>\n

\u6e05\u7406\u540c\u65f6\u79fb\u9664\u4e0a\u4e0b\u6587\u548c\u65e5\u5fd7\u5b57\u6bb5：<\/p>\n

public<\/span> static<\/span> void<\/span> clear<\/span>(<\/span>)<\/span> {<\/span>
\n MDC<\/span>.<\/span>clear<\/span>(<\/span>)<\/span>;<\/span>
\n CONTEXT<\/span>.<\/span>remove<\/span>(<\/span>)<\/span>;<\/span>
\n }<\/span><\/p>\n

\u5982\u679c\u4efb\u52a1\u5c31\u5728\u521b\u5efa\u5305\u88c5\u5668\u7684\u7ebf\u7a0b\u6267\u884c，\u5219\u6cbf\u7528\u8be5\u7ebf\u7a0b\u5f53\u524d\u7684\u503c，\u4e0d\u6062\u590d\u5feb\u7167，\u4e5f\u4e0d\u989d\u5916\u6e05\u7406\u3002\u63a5\u53e3\u672c\u8eab\u7ed3\u675f\u65f6，\u518d\u7531\u8bf7\u6c42\u5165\u53e3\u6e05\u7406\u3002<\/p>\n

\u540c\u7ebf\u7a0b\u6267\u884c\u540e，\u7f16\u53f7\u4ecd\u5728：<\/p>\n

\/\/ \u8c03\u7528\u793a\u4f8b：\u53ea\u9a8c\u8bc1\u540c\u7ebf\u7a0b\u5206\u652f，\u7ebf\u7a0b\u6c60\u9971\u548c\u7684\u60c5\u51b5\u53e6\u505a\u5b9e\u6d4b\u3002<\/span>
\n ThreadContext<\/span>.<\/span>setTraceId<\/span>(<\/span>"req-A"<\/span>)<\/span>;<\/span>
\n Runnable<\/span> task =<\/span> RunnableWrapper<\/span>.<\/span>of<\/span>(<\/span>(<\/span>)<\/span> -><\/span> {<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>ThreadContext<\/span>.<\/span>getTraceId<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ req-A<\/span>
\n }<\/span>)<\/span>;<\/span>
\n task.<\/span>run<\/span>(<\/span>)<\/span>;<\/span>
\n System<\/span>.<\/span>out.<\/span>println<\/span>(<\/span>ThreadContext<\/span>.<\/span>getTraceId<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n \/\/ req-A，\u8c03\u7528\u540e\u4ecd\u7136\u4fdd\u7559<\/span>
\n ThreadContext<\/span>.<\/span>clear<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

\u65e5\u5fd7\u91cc\u600e\u6837\u663e\u793a\u8fd9\u4e2a\u7f16\u53f7<\/h4>\n

\u6062\u590d\u65b9\u6cd5\u8bc6\u522b\u7ea6\u5b9a\u7684\u56db\u4e2a\u5b57\u6bb5，\u5176\u4e2d traceId \u4f1a\u8c03\u7528 setTraceId：<\/p>\n

public<\/span> static<\/span> void<\/span> putContextMap<\/span>(<\/span>Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span><\/span> contextMap)<\/span> {<\/span>
\n if<\/span> (<\/span>null<\/span> !=<\/span> contextMap &&<\/span> !<\/span>contextMap.<\/span>isEmpty<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
\n contextMap.<\/span>forEach<\/span>(<\/span>(<\/span>k,<\/span> v)<\/span> -><\/span> {<\/span>
\n if<\/span> (<\/span>Strings<\/span>.<\/span>CS<\/span>.<\/span>equals<\/span>(<\/span>k,<\/span> TRACE_ID<\/span>)<\/span>)<\/span> {<\/span>
\n setTraceId<\/span>(<\/span>v)<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span> (<\/span>Strings<\/span>.<\/span>CS<\/span>.<\/span>equals<\/span>(<\/span>k,<\/span> LOGIN_USER_ID<\/span>)<\/span>)<\/span> {<\/span>
\n setLoginUserId<\/span>(<\/span>v)<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span> (<\/span>Strings<\/span>.<\/span>CS<\/span>.<\/span>equals<\/span>(<\/span>k,<\/span> APP_ID<\/span>)<\/span>)<\/span> {<\/span>
\n setAppId<\/span>(<\/span>v)<\/span>;<\/span>
\n }<\/span> else<\/span> if<\/span> (<\/span>Strings<\/span>.<\/span>CS<\/span>.<\/span>equals<\/span>(<\/span>k,<\/span> SEATA_XID<\/span>)<\/span>)<\/span> {<\/span>
\n setSeataXid<\/span>(<\/span>v)<\/span>;<\/span>
\n }<\/span>
\n }<\/span>)<\/span>;<\/span>
\n }<\/span>
\n }<\/span><\/p>\n

setTraceId \u4e00\u8fb9\u4fdd\u5b58\u7f16\u53f7，\u65b9\u4fbf\u4e1a\u52a1\u8bfb\u53d6，\u4e00\u8fb9\u5199\u5165 MDC，\u4f9b\u65e5\u5fd7\u8f93\u51fa：<\/p>\n

public<\/span> static<\/span> void<\/span> setTraceId<\/span>(<\/span>String<\/span> traceId)<\/span> {<\/span>
\n MDC<\/span>.<\/span>put<\/span>(<\/span>TRACE_ID<\/span>,<\/span> traceId)<\/span>;<\/span>
\n CONTEXT<\/span>.<\/span>get<\/span>(<\/span>)<\/span>.<\/span>put<\/span>(<\/span>TRACE_ID<\/span>,<\/span> traceId)<\/span>;<\/span>
\n }<\/span><\/p>\n

Logback \u7684\u65e5\u5fd7\u683c\u5f0f\u8fd8\u8981\u5305\u542b %X{X-Trace-Id}，\u5426\u5219 MDC \u4e2d\u6709\u7f16\u53f7，\u65e5\u5fd7\u91cc\u4e5f\u4e0d\u4f1a\u663e\u793a\u3002\u5b83\u4e0e\u4ee3\u7801\u4e2d\u7684\u952e\u540d\u5bf9\u5e94，\u4e0d\u80fd\u968f\u610f\u6539\u6210\u53e6\u4e00\u4e2a\u540d\u5b57\u3002<\/p>\n

\u53e6\u4e09\u4e2a\u5b57\u6bb5\u6062\u590d\u5230 ThreadContext \u4f9b\u4e1a\u52a1\u8bfb\u53d6\u3002\u5176\u4e2d XID \u53ea\u6062\u590d\u4e00\u4e2a\u503c，\u4e0d\u7b49\u4e8e\u7ed1\u5b9aSeata\u4e8b\u52a1；\u672c\u6587\u4e0d\u5c55\u5f00\u4e8b\u52a1\u4f20\u64ad\u3002<\/p>\n

\u4f7f\u7528\u65f6\u8fd8\u8981\u6ce8\u610f\u4ec0\u4e48<\/h4>\n

\u5de5\u5382\u65b9\u6cd5\u9047\u5230\u5df2\u5305\u88c5\u4efb\u52a1，\u4f1a\u76f4\u63a5\u8fd4\u56de\u539f\u5bf9\u8c61：<\/p>\n

\/**
\n * \u521b\u5efaRunnableWrapper\u5b9e\u4f8b\u7684\u5de5\u5382\u65b9\u6cd5
\n *
\n * @param runnable \u9700\u8981\u5305\u88c5\u7684Runnable\u5bf9\u8c61
\n *\/<\/span>
\n public<\/span> static<\/span> Runnable<\/span> of<\/span>(<\/span>Runnable<\/span> runnable)<\/span> {<\/span>
\n paramNotNull<\/span>(<\/span>runnable,<\/span> "runnable"<\/span>)<\/span>;<\/span>
\n \/\/ \u5982\u679c\u4f20\u5165\u7684runnable\u5df2\u7ecf\u662fRunnableWrapper\u7c7b\u578b，\u76f4\u63a5\u8fd4\u56de<\/span>
\n if<\/span> (<\/span>runnable instanceof<\/span> RunnableWrapper<\/span>)<\/span> {<\/span>
\n return<\/span> runnable;<\/span>
\n }<\/span>
\n \/\/ \u5426\u5219\u521b\u5efa\u65b0\u7684RunnableWrapper\u5b9e\u4f8b<\/span>
\n return<\/span> new<\/span> RunnableWrapper<\/span>(<\/span>runnable)<\/span>;<\/span>
\n }<\/span><\/p>\n

\u6240\u4ee5\u5b83\u53ea\u907f\u514d\u91cd\u590d\u5305\u88c5，\u4e0d\u4f1a\u91cd\u65b0\u590d\u5236\u6570\u636e\u3002\u5de5\u4f5c\u7ebf\u7a0b\u6267\u884c\u5b8c\u540e，\u5305\u88c5\u5668\u8fd8\u4f1a\u5c06\u4efb\u52a1\u548c\u5feb\u7167\u7f6e\u7a7a；\u6bcf\u6b21\u63d0\u4ea4\u8981\u4f7f\u7528\u65b0\u5305\u88c5\u5668，\u4e0d\u80fd\u7f13\u5b58\u540c\u4e00\u4e2a\u5b9e\u4f8b\u53cd\u590d\u6267\u884c\u3002<\/p>\n

\u8fd8\u6709\u4e09\u4e2a\u5f71\u54cd\u4f7f\u7528\u7684\u6761\u4ef6：<\/p>\n