{"id":1504,"date":"2017-04-22T08:27:05","date_gmt":"2017-04-22T00:27:05","guid":{"rendered":"http:\/\/coderbee.net\/?p=1504"},"modified":"2017-04-22T08:27:05","modified_gmt":"2017-04-22T00:27:05","slug":"%e5%88%86%e5%b8%83%e5%bc%8f%e7%b3%bb%e7%bb%9f%e9%97%b4%e8%af%b7%e6%b1%82%e8%b7%9f%e8%b8%aa","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/framework\/20170422\/1504","title":{"rendered":"\u5206\u5e03\u5f0f\u7cfb\u7edf\u95f4\u8bf7\u6c42\u8ddf\u8e2a"},"content":{"rendered":"

\u4e00\u3001\u8bf7\u6c42\u8ddf\u8e2a\u57fa\u672c\u539f\u7406<\/h2>\n

\u73b0\u5728\u7684\u5f88\u591a\u5e94\u7528\u90fd\u662f\u7531\u5f88\u591a\u7cfb\u7edf\u7cfb\u7edf\u5728\u652f\u6301\uff0c\u8fd9\u4e9b\u7cfb\u7edf\u8fd8\u4f1a\u90e8\u7f72\u5f88\u591a\u4e2a\u5b9e\u4f8b\uff0c\u7528\u6237\u7684\u4e00\u4e2a\u8bf7\u6c42\u53ef\u80fd\u5728\u591a\u4e2a\u7cfb\u7edf\u7684\u90e8\u7f72\u5b9e\u4f8b\u4e4b\u95f4\u6d41\u8f6c\u3002\u4e3a\u4e86\u8ddf\u8e2a\u4e00\u4e2a\u8bf7\u6c42\u7684\u5b8c\u6574\u5904\u7406\u8fc7\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u7ed9\u8bf7\u6c42\u5206\u914d\u4e00\u4e2a\u552f\u4e00\u7684 ID traceID<\/code>\uff0c\u5f53\u8bf7\u6c42\u8c03\u7528\u5230\u53e6\u4e00\u4e2a\u7cfb\u7edf\u65f6\uff0c\u6211\u4eec\u4f20\u9012\u8fd9\u4e2a traceID<\/code>\u3002\u5728\u8f93\u51fa\u65e5\u5fd7\u65f6\uff0c\u628a\u8fd9\u4e2a traceID<\/code> \u4e5f\u8f93\u51fa\u5230\u65e5\u5fd7\u91cc\uff0c\u8fd9\u6837\uff0c\u6839\u636e\u65e5\u5fd7\u6587\u4ef6\uff0c\u63d0\u53d6\u51fa\u73b0\u8fd9\u4e2a traceID<\/code> \u7684\u65e5\u5fd7\u5c31\u53ef\u4ee5\u5206\u6790\u8fd9\u4e2a\u8bf7\u6c42\u7684\u5b8c\u6574\u8c03\u7528\u8fc7\u7a0b\uff0c\u751a\u81f3\u8fdb\u884c\u6027\u80fd\u5206\u6790\u3002<\/p>\n

\u5f53\u7136\uff0c\u5728\u4e00\u4e2a\u7cfb\u7edf\u5185\u90e8\uff0c\u6211\u4eec\u4e0d\u5e0c\u671b\u6bcf\u6b21\u8c03\u7528\u4e00\u4e2a\u65b9\u6cd5\u65f6\u90fd\u8981\u4f20\u9012\u8fd9\u4e2a traceID<\/code>\uff0c\u56e0\u6b64\u5728 Java \u91cc\uff0c\u4e00\u822c\u628a\u8fd9\u4e2a traceID<\/code> \u653e\u5230\u67d0\u79cd\u5f62\u5f0f\u7684 ThreadLocal<\/code> \u53d8\u91cf\u91cc\u3002<\/p>\n

\u65e5\u5fd7\u7c7b\u5e93\u5728\u8f93\u51fa\u65e5\u5fd7\u65f6\uff0c\u5c31\u4ece\u8fd9\u4e2a ThreadLocal<\/code> \u53d8\u91cf\u91cc\u53d6\u51fa traceID<\/code>\uff0c\u8ddf\u8981\u8f93\u51fa\u7684\u65e5\u5fd7\u4fe1\u606f\u4e00\u8d77\u5199\u5165\u65e5\u5fd7\u6587\u4ef6\u3002<\/p>\n

\u8fd9\u6837\u5bf9\u4e8e\u5e94\u7528\u7684\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u57fa\u672c\u4e0d\u9700\u8981\u5173\u6ce8\u8fd9\u4e2a traceID<\/code>\u3002<\/p>\n

\u4e8c\u3001\u8fdc\u7a0b\u8c03\u7528\u95f4\u4f20\u9012\u8ddf\u8e2a\u4fe1\u606f<\/h2>\n

\u5982\u4f55\u4f7f\u7528\u7684\u662f\u81ea\u5b9a\u4e49\u7684 RPC \u5b9e\u73b0\uff0c\u8fd9\u4e9b RPC \u4e00\u822c\u90fd\u9884\u7559\u4e86\u6269\u5c55\u673a\u5236\u6765\u4f20\u9012\u4e00\u4e9b\u81ea\u5b9a\u4e49\u7684\u4fe1\u606f\uff0c\u6211\u4eec\u53ef\u4ee5\u628a traceID<\/code> \u4f5c\u4e3a\u81ea\u5b9a\u4e49\u4fe1\u606f\u8fdb\u884c\u4f20\u9012\u3002<\/p>\n

\u5bf9\u4e8e Hessian \u8fd9\u79cd\u57fa\u4e8e HTTP \u534f\u8bae\u7684 RPC \u65b9\u6cd5\uff0c\u5b83\u628a\u5e8f\u5217\u5316\u540e\u7684\u8c03\u7528\u4fe1\u606f\u4f5c\u4e3a POST<\/code> \u7684\u8bf7\u6c42\u4f53\u3002\u5982\u679c\u6211\u4eec\u4e0d\u60f3\u53bb\u4fee\u6539 Hessian \u7684\u8c03\u7528\u673a\u5236\uff0c\u53ef\u4ee5\u628a traceID<\/code> \u653e\u5230 HTTP \u7684\u8bf7\u6c42\u5934\u91cc\u3002<\/p>\n

\u5728\u5ba2\u6237\u7aef\u53ea\u9700\u8981\u63d0\u4f9b\u5c01\u88c5\u597d\u7684 RPC \u8c03\u7528\u4ee3\u7406\u3002<\/p>\n

\u5728\u670d\u52a1\u7aef\u901a\u8fc7 Filter<\/code> \u5f97\u5230 traceID<\/code> \u653e\u5165 ThreadLocal<\/code> \u53d8\u91cf\u3002<\/p>\n

<\/p>\n

\u4e09\u3001\u7ebf\u7a0b\u95f4\u4f20\u9012\u8ddf\u8e2a\u4fe1\u606f<\/h2>\n

\u5728\u5b9e\u9645\u7684\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u8fd8\u53ef\u80fd\u628a\u8bf7\u6c42\u4ea4\u7ed9\u522b\u7684\u7ebf\u7a0b\u53bb\u5f02\u6b65\u5904\u7406\uff0c\u8fd9\u5c31\u6d89\u53ca\u5728\u7ebf\u7a0b\u95f4\u4f20\u9012 traceID<\/code>\u3002<\/p>\n

\u5f53\u6211\u4eec\u76f4\u63a5\u7528 java.util.concurrent.ExecutorService.submit(Runnable task)<\/code> \u63d0\u4ea4\u4e00\u4e2a\u4efb\u52a1\u65f6\uff0c\u663e\u7136\u662f\u4e0d\u4f1a\u81ea\u52a8\u4f20\u9012\u8fd9\u4e2a traceID<\/code> \u7684\uff0c\u6211\u4eec\u9700\u8981\u505a\u4e00\u4e9b\u5c01\u88c5\u6765\u900f\u660e\u5730\u4f20\u9012 traceID<\/code>\u3002<\/p>\n

\u4e0b\u9762\u662f\u4e00\u4e2a\u53ef\u8ddf\u8e2a\u4efb\u52a1\u7684\u5b9a\u4e49\uff0c\u5229\u7528 org.slf4j.MDC<\/code> \u6765\u4fdd\u5b58\u65e7\u7ebf\u7a0b\u91cc\u7684 traceID<\/code>\uff0c\u5728\u65b0\u7ebf\u7a0b\u6267\u884c\u5b50\u7c7b\u4efb\u52a1\u65f6\u521d\u59cb\u5316\u8ddf\u8e2a\u4fe1\u606f\u3002<\/p>\n

package net.coderbee.util.concurrent;\n\nimport org.slf4j.MDC;\n\nimport java.util.HashMap;\nimport java.util.Map;\nimport java.util.UUID;\n\n\/**\n * Created by coderbee on 2017\/4\/21.\n *\/\nclass TraceableTask {\n    private Map<String, String> context;\n\n    public TraceableTask() {\n        context = MDC.getCopyOfContextMap();\n    }\n\n    protected void clearContext() {\n        MDC.clear();\n    }\n\n    void initContext() {\n        if (context == null || context.isEmpty()) {\n            init();\n        } else {\n            MDC.setContextMap(context);\n        }\n    }\n\n    private void init() {\n        Map<String, String> context = new HashMap<String, String>();\n        String traceID = UUID.randomUUID().toString().replace(\"-\", \"\");\n        context.put(\"trace_id\", traceID);\n\n        MDC.setContextMap(context);\n    }\n\n}\n<\/code><\/pre>\n
\u5bf9 Runnable, Callable<T><\/code> \u5206\u522b\u5b9a\u4e49\u4e00\u4e2a\u5b50\u7c7b\u5982\u4e0b\uff1a<\/p>\n
package net.coderbee.util.concurrent;\n\npublic abstract class TraceableRunnable extends TraceableTask\n        implements Runnable {\n\n    public final void run() {\n        super.initContext();\n\n        run0();\n    }\n\n    protected abstract void run0();\n}\n\n\npackage net.coderbee.util.concurrent;\n\nimport java.util.concurrent.Callable;\n\npublic abstract class TraceableCallable<T> extends TraceableTask\n        implements Callable<T> {\n\n    public final T call() {\n        super.initContext();\n\n        return call0();\n    }\n\n    protected abstract T call0();\n}\n<\/code><\/pre>\n
\u8fd9\u4e24\u4e2a\u5b50\u7c7b\u5229\u7528\u4e86 Java \u5728\u5bf9\u8c61\u5b9e\u4f8b\u5316\u65f6\u603b\u662f\u4f1a\u6267\u884c\u7236\u7c7b\u6784\u9020\u51fd\u6570\u7684\u7279\u70b9\uff0c\u4f7f\u5f97\u5b50\u7c7b\u4e0d\u9700\u8981\u663e\u5f0f\u4fdd\u5b58 traceID<\/code>\u3002<\/p>\n
\u5f53\u6211\u4eec\u5b9e\u4f8b\u5316 TraceableRunnable<\/code> \u6216 TraceableCallable<\/code> \u65f6\uff0c\u662f\u5728\u65e7\u7684\u7ebf\u7a0b\u91cc\u6267\u884c\u7684\uff0c\u56e0\u6b64\u5b83\u7684 traceID<\/code> \u4f1a\u4fdd\u5b58\u5728 TraceableTask<\/code> \u7684 context<\/code> \u5c5e\u6027\u91cc\u3002<\/p>\n
\u5f53\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u6267\u884c\u8fd9\u4e9b\u4efb\u52a1\u5b9e\u4f8b\u65f6\uff0c\u9996\u5148\u6267\u884c\u7684\u662f run<\/code> \u6216 call<\/code> \u65b9\u6cd5\uff0cTraceableTask<\/code> \u4f1a\u628a\u4fdd\u5b58\u7684 context<\/code> \u8bbe\u7f6e\u5230\u5f53\u524d\u7ebf\u7a0b\u7684 ThreadLocal<\/code> \u91cc\uff0c\u8fd9\u5c31\u5b8c\u6210\u4e86 traceID<\/code> \u7684\u4f20\u9012\u3002<\/p>\n\n
\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00\u3001\u8bf7\u6c42\u8ddf\u8e2a\u57fa\u672c\u539f\u7406 \u73b0\u5728\u7684\u5f88\u591a\u5e94\u7528\u90fd\u662f\u7531\u5f88\u591a\u7cfb\u7edf\u7cfb\u7edf\u5728\u652f\u6301\uff0c\u8fd9\u4e9b\u7cfb\u7edf\u8fd8\u4f1a\u90e8\u7f72\u5f88 … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[255],"tags":[270,269],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1504"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=1504"}],"version-history":[{"count":2,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1504\/revisions"}],"predecessor-version":[{"id":1506,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1504\/revisions\/1506"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=1504"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=1504"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=1504"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}