{"id":464,"date":"2025-12-04T17:18:27","date_gmt":"2025-12-04T09:18:27","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=464"},"modified":"2025-12-04T17:18:27","modified_gmt":"2025-12-04T09:18:27","slug":"springboot%e5%ae%9e%e7%8e%b0threadlocal%e7%88%b6%e5%ad%90%e7%ba%bf%e7%a8%8b%e4%bc%a0%e5%80%bc%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2025\/12\/04\/springboot%e5%ae%9e%e7%8e%b0threadlocal%e7%88%b6%e5%ad%90%e7%ba%bf%e7%a8%8b%e4%bc%a0%e5%80%bc%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e5%bc%8f\/","title":{"rendered":"SpringBoot\u5b9e\u73b0ThreadLocal\u7236\u5b50\u7ebf\u7a0b\u4f20\u503c\u7684\u51e0\u79cd\u65b9\u5f0f"},"content":{"rendered":"\n<p>\u5728 <strong>Spring Boot<\/strong> \u6216\u666e\u901a Java \u5e94\u7528\u4e2d\uff0c\u4f7f\u7528 <code>ThreadLocal<\/code> \u6765\u4fdd\u5b58\u7ebf\u7a0b\u7ea7\u53d8\u91cf\u65f6\uff0c\u6709\u4e00\u4e2a\u5e38\u89c1\u95ee\u9898\uff1a<strong>\u5b50\u7ebf\u7a0b\u65e0\u6cd5\u7ee7\u627f\u7236\u7ebf\u7a0b\u7684 <code>ThreadLocal<\/code> \u503c<\/strong>\uff0c\u56e0\u4e3a\u666e\u901a <code>ThreadLocal<\/code> \u662f\u7ebf\u7a0b\u9694\u79bb\u7684\u3002\u4e0b\u9762\u6211\u5e2e\u4f60\u6574\u7406\u51e0\u79cd\u5b9e\u73b0 <strong>\u7236\u5b50\u7ebf\u7a0b\u4f20\u503c\u7684\u65b9\u5f0f<\/strong>\uff0c\u5305\u62ec Spring \u73af\u5883\u5e38\u7528\u65b9\u6cd5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><strong>Spring Boot \u4e2d ThreadLocal \u7236\u5b50\u7ebf\u7a0b\u4f20\u503c\u7684\u51e0\u79cd\u65b9\u5f0f<\/strong><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u4e00\u3001\u4f7f\u7528 InheritableThreadLocal<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u539f\u7406<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>InheritableThreadLocal<\/code> \u662f <code>ThreadLocal<\/code> \u7684\u5b50\u7c7b<\/li>\n\n\n\n<li>\u7236\u7ebf\u7a0b\u521b\u5efa\u5b50\u7ebf\u7a0b\u65f6\uff0c\u5b50\u7ebf\u7a0b\u4f1a\u81ea\u52a8\u62f7\u8d1d\u7236\u7ebf\u7a0b\u7684\u503c<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u793a\u4f8b\u4ee3\u7801<\/strong><\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\npublic class ThreadLocalExample {\n\n    private static InheritableThreadLocal&amp;lt;String&gt; context = new InheritableThreadLocal&amp;lt;&gt;();\n\n    public static void main(String&#x5B;] args) {\n        context.set(&quot;\u7236\u7ebf\u7a0b\u6570\u636e&quot;);\n\n        Thread childThread = new Thread(() -&gt; {\n            System.out.println(&quot;\u5b50\u7ebf\u7a0b\u83b7\u53d6\u503c: &quot; + context.get());\n        });\n\n        childThread.start();\n    }\n}\n\n<\/pre><\/div>\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5b50\u7ebf\u7a0b\u83b7\u53d6\u503c: \u7236\u7ebf\u7a0b\u6570\u636e\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u6ce8\u610f\u4e8b\u9879<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u7ebf\u7a0b\u6c60\u590d\u7528\u7ebf\u7a0b\uff08\u5982 <code>@Async<\/code> \u6216 <code>ThreadPoolTaskExecutor<\/code>\uff09\uff0c<code>InheritableThreadLocal<\/code> \u4f1a\u5931\u6548\uff0c\u56e0\u4e3a\u7ebf\u7a0b\u4e0d\u662f\u65b0\u5efa\u7684<\/li>\n\n\n\n<li>\u4e0d\u9002\u7528\u4e8e\u7ebf\u7a0b\u6c60\u573a\u666f<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u4e8c\u3001\u4f7f\u7528 TransmittableThreadLocal\uff08TTL\uff09<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u539f\u7406<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/github.com\/alibaba\/transmittable-thread-local\">\u963f\u91cc\u5f00\u6e90<\/a><\/li>\n\n\n\n<li>\u89e3\u51b3 <strong>\u7236\u5b50\u7ebf\u7a0b\u4f20\u503c + \u7ebf\u7a0b\u6c60\u590d\u7528\u7ebf\u7a0b<\/strong> \u95ee\u9898<\/li>\n\n\n\n<li>\u81ea\u52a8\u628a\u7236\u7ebf\u7a0b\u503c\u4f20\u9012\u7ed9\u5b50\u7ebf\u7a0b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Maven \u4f9d\u8d56<\/strong><\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n&amp;lt;dependency&gt;\n    &amp;lt;groupId&gt;com.alibaba&amp;lt;\/groupId&gt;\n    &amp;lt;artifactId&gt;transmittable-thread-local&amp;lt;\/artifactId&gt;\n    &amp;lt;version&gt;2.13.0&amp;lt;\/version&gt;\n&amp;lt;\/dependency&gt;\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u793a\u4f8b\u4ee3\u7801<\/strong><\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nTransmittableThreadLocal&amp;lt;String&gt; ttl = new TransmittableThreadLocal&amp;lt;&gt;();\nttl.set(&quot;\u7236\u7ebf\u7a0b\u6570\u636e&quot;);\n\n\/\/ \u5305\u88c5\u7ebf\u7a0b\u6c60\nExecutorService executor = TtlExecutors.getTtlExecutorService(Executors.newFixedThreadPool(2));\n\nexecutor.submit(() -&gt; {\n    System.out.println(&quot;\u5b50\u7ebf\u7a0b\u83b7\u53d6\u503c: &quot; + ttl.get());\n});\n\n<\/pre><\/div>\n\n\n<p>\u8f93\u51fa\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5b50\u7ebf\u7a0b\u83b7\u53d6\u503c: \u7236\u7ebf\u7a0b\u6570\u636e\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>4. \u7279\u70b9<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u652f\u6301\u7ebf\u7a0b\u6c60\u573a\u666f<\/li>\n\n\n\n<li>\u81ea\u52a8\u4f20\u64ad\u7236\u7ebf\u7a0b ThreadLocal \u503c<\/li>\n\n\n\n<li>TTL + Spring <code>@Async<\/code> \u914d\u5408\u53ef\u76f4\u63a5\u4f7f\u7528<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u4e09\u3001\u624b\u52a8\u4f20\u9012 ThreadLocal \u503c<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u539f\u7406<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7236\u7ebf\u7a0b\u5148\u83b7\u53d6 <code>ThreadLocal<\/code> \u503c<\/li>\n\n\n\n<li>\u521b\u5efa\u5b50\u7ebf\u7a0b\u65f6\uff0c\u5c06\u503c\u4f20\u9012\u7ed9\u5b50\u7ebf\u7a0b<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u793a\u4f8b\u4ee3\u7801<\/strong><\/h3>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nThreadLocal&amp;lt;String&gt; threadLocal = new ThreadLocal&amp;lt;&gt;();\nthreadLocal.set(&quot;\u7236\u7ebf\u7a0b\u6570\u636e&quot;);\n\nString parentValue = threadLocal.get();\n\nThread childThread = new Thread(() -&gt; {\n    threadLocal.set(parentValue);\n    System.out.println(&quot;\u5b50\u7ebf\u7a0b\u83b7\u53d6\u503c: &quot; + threadLocal.get());\n});\n\nchildThread.start();\n\n<\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u7279\u70b9<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b80\u5355\u53ef\u63a7<\/li>\n\n\n\n<li>\u9002\u5408\u5c11\u91cf\u5b50\u7ebf\u7a0b\u4f20\u503c<\/li>\n\n\n\n<li>\u5982\u679c\u7ebf\u7a0b\u6c60\u590d\u7528\u7ebf\u7a0b\uff0c\u9700\u8981\u5728\u63d0\u4ea4\u4efb\u52a1\u65f6\u624b\u52a8\u6e05\u7406 ThreadLocal<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u56db\u3001Spring Boot \u73af\u5883\u7684\u989d\u5916\u6ce8\u610f<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u4f7f\u7528 @Async \u65f6<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u9ed8\u8ba4\u7ebf\u7a0b\u6c60\u590d\u7528\u7ebf\u7a0b\uff0c\u666e\u901a <code>ThreadLocal<\/code> \u65e0\u6cd5\u81ea\u52a8\u4f20\u503c<\/li>\n\n\n\n<li>\u53ef\u4ee5\u4f7f\u7528 <strong>TransmittableThreadLocal + TtlExecutors<\/strong> \u6216\u8005\u81ea\u5df1\u5305\u88c5 <code>Executor<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>RestTemplate + \u5f02\u6b65\u8c03\u7528<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u82e5\u9700\u8981\u4f20\u9012\u7528\u6237\u4e0a\u4e0b\u6587\u6216\u8bf7\u6c42 ID\uff08\u5982\u65e5\u5fd7\u8ffd\u8e2a <code>X-Request-ID<\/code>\uff09<\/li>\n\n\n\n<li>\u5efa\u8bae\u4f7f\u7528 TTL \u6216\u624b\u52a8\u4f20\u9012\u4e0a\u4e0b\u6587<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>ThreadLocal \u6e05\u7406<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528\u5b8c\u5fc5\u987b <code>remove()<\/code>\uff0c\u907f\u514d\u5185\u5b58\u6cc4\u6f0f<\/li>\n\n\n\n<li>\u5c24\u5176\u5728\u4f7f\u7528\u7ebf\u7a0b\u6c60\u7684\u60c5\u51b5\u4e0b<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u603b\u7ed3<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u65b9\u5f0f<\/th><th>\u662f\u5426\u652f\u6301\u7ebf\u7a0b\u6c60<\/th><th>\u4f7f\u7528\u96be\u5ea6<\/th><th>\u5907\u6ce8<\/th><\/tr><\/thead><tbody><tr><td>InheritableThreadLocal<\/td><td>\u274c \u4e0d\u652f\u6301\u7ebf\u7a0b\u6c60\u590d\u7528<\/td><td>\u7b80\u5355<\/td><td>\u9002\u5408\u65b0\u5efa\u7ebf\u7a0b\u4f20\u503c<\/td><\/tr><tr><td>TransmittableThreadLocal<\/td><td>\u2705 \u652f\u6301\u7ebf\u7a0b\u6c60<\/td><td>\u4e2d\u7b49<\/td><td>\u63a8\u8350 Spring Boot \u5f02\u6b65\u573a\u666f<\/td><\/tr><tr><td>\u624b\u52a8\u4f20\u9012<\/td><td>\u2705 \u652f\u6301<\/td><td>\u7b80\u5355<\/td><td>\u53ef\u63a7\uff0c\u4f46\u9700\u624b\u52a8\u6e05\u7406 ThreadLocal<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Spring Boot \u6216\u666e\u901a Java \u5e94\u7528\u4e2d\uff0c\u4f7f\u7528 ThreadLoca&#8230; <a class=\"more-link\" href=\"https:\/\/www.52runoob.com\/index.php\/2025\/12\/04\/springboot%e5%ae%9e%e7%8e%b0threadlocal%e7%88%b6%e5%ad%90%e7%ba%bf%e7%a8%8b%e4%bc%a0%e5%80%bc%e7%9a%84%e5%87%a0%e7%a7%8d%e6%96%b9%e5%bc%8f\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-464","post","type-post","status-publish","format-standard","hentry","category-12"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/comments?post=464"}],"version-history":[{"count":1,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/464\/revisions"}],"predecessor-version":[{"id":466,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/posts\/464\/revisions\/466"}],"wp:attachment":[{"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/media?parent=464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/categories?post=464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52runoob.com\/index.php\/wp-json\/wp\/v2\/tags?post=464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}