{"id":9995,"date":"2023-11-28T21:23:29","date_gmt":"2023-11-28T13:23:29","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=9995"},"modified":"2023-12-07T10:40:20","modified_gmt":"2023-12-07T02:40:20","slug":"jvm-zhong-hui-chu-xian-nei-cun-yi-chu-nei-cun-xie","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/jvm-zhong-hui-chu-xian-nei-cun-yi-chu-nei-cun-xie\/","title":{"rendered":"JVM\u4e2d\u4f1a\u51fa\u73b0\u5185\u5b58\u6ea2\u51fa\uff0c\u5185\u5b58\u6cc4\u6f0f\uff0c\u4ec0\u4e48\u539f\u56e0\uff1f"},"content":{"rendered":"

\u5728Java\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5185\u5b58\u6ea2\u51fa\uff08OutOfMemoryError\uff09\u548c\u5185\u5b58\u6cc4\u6f0f\u662f\u5e38\u89c1\u7684\u95ee\u9898\uff0c\u5b83\u4eec\u901a\u5e38\u7531\u4e0d\u6b63\u786e\u7684\u5185\u5b58\u7ba1\u7406\u5f15\u8d77\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5bfc\u81f4\u5185\u5b58\u6ea2\u51fa\u548c\u5185\u5b58\u6cc4\u6f0f\u7684\u5e38\u89c1\u539f\u56e0\uff1a<\/p>\n

<\/span><\/a>\u5185\u5b58\u6ea2\u51fa\uff08OutOfMemoryError\uff09\u7684\u539f\u56e0\uff1a<\/h3>\n
    \n
  1. \n\u5806\u5185\u5b58\u4e0d\u8db3\uff1a<\/strong> Java\u5e94\u7528\u7a0b\u5e8f\u7684\u5806\u5185\u5b58\u7528\u4e8e\u5b58\u50a8\u5bf9\u8c61\u5b9e\u4f8b\uff0c\u5982\u679c\u5806\u5185\u5b58\u4e0d\u8db3\u4ee5\u5bb9\u7eb3\u65b0\u521b\u5efa\u7684\u5bf9\u8c61\uff0c\u5c31\u4f1a\u5bfc\u81f4\u5806\u5185\u5b58\u6ea2\u51fa\u3002<\/p>\n
    List<Object> list = new ArrayList<>();\nwhile (true) {\n    list.add(new Object());\n}\n<\/code><\/pre>\n<\/li>\n
  2. \n\u6301\u7eed\u521b\u5efa\u5927\u5bf9\u8c61\uff1a<\/strong> \u5728\u77ed\u65f6\u95f4\u5185\u6301\u7eed\u521b\u5efa\u5927\u5bf9\u8c61\uff0c\u5bfc\u81f4\u5806\u5185\u5b58\u8017\u5c3d\u3002<\/p>\n
    byte[] largeArray = new byte[Integer.MAX_VALUE];\n<\/code><\/pre>\n<\/li>\n
  3. \n\u5185\u5b58\u6cc4\u6f0f\u5bfc\u81f4\u6ea2\u51fa\uff1a<\/strong> \u5185\u5b58\u6cc4\u6f0f\u4f1a\u5bfc\u81f4\u4e0d\u518d\u4f7f\u7528\u7684\u5bf9\u8c61\u65e0\u6cd5\u88ab\u5783\u573e\u56de\u6536\uff0c\u6700\u7ec8\u5bfc\u81f4\u5806\u5185\u5b58\u6ea2\u51fa\u3002\n<\/li>\n<\/ol>\n
    <\/span><\/a>\u5185\u5b58\u6cc4\u6f0f\u7684\u539f\u56e0\uff1a<\/h3>\n
      \n
    1. \n\u957f\u671f\u6301\u6709\u5f15\u7528\uff1a<\/strong> \u5982\u679c\u5bf9\u8c61\u7684\u5f15\u7528\u88ab\u957f\u671f\u6301\u6709\uff0c\u5373\u4f7f\u5bf9\u8c61\u5df2\u7ecf\u4e0d\u518d\u4f7f\u7528\uff0c\u5783\u573e\u56de\u6536\u5668\u4e5f\u65e0\u6cd5\u91ca\u653e\u5176\u5185\u5b58\u3002<\/p>\n
      static List<Object> list = new ArrayList<>();\n\npublic void addToList(Object obj) {\n    list.add(obj);\n}\n<\/code><\/pre>\n<\/li>\n
    2. \n\u4e0d\u6b63\u786e\u7684\u7f13\u5b58\uff1a<\/strong> \u7f13\u5b58\u4e2d\u4fdd\u5b58\u4e86\u5927\u91cf\u5bf9\u8c61\u5f15\u7528\uff0c\u4f46\u7f13\u5b58\u7684\u8bbe\u8ba1\u4e0d\u5f53\uff0c\u5bfc\u81f4\u5bf9\u8c61\u4e0d\u80fd\u88ab\u6b63\u786e\u91ca\u653e\u3002<\/p>\n
      static Map<String, Object> cache = new HashMap<>();\n\npublic void addToCache(String key, Object value) {\n    cache.put(key, value);\n}\n<\/code><\/pre>\n<\/li>\n
    3. \n\u7ebf\u7a0b\u672c\u5730\u53d8\u91cf\u672a\u6e05\u7406\uff1a<\/strong> \u4f7f\u7528ThreadLocal<\/code>\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u6b63\u786e\u6e05\u7406\u7ebf\u7a0b\u672c\u5730\u53d8\u91cf\uff0c\u53ef\u80fd\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n
      static ThreadLocal<Object> threadLocal = new ThreadLocal<>();\n\npublic void setThreadLocalValue(Object value) {\n    threadLocal.set(value);\n}\n<\/code><\/pre>\n<\/li>\n
    4. \n\u76d1\u542c\u5668\u548c\u56de\u8c03\u672a\u79fb\u9664\uff1a<\/strong> \u6ce8\u518c\u7684\u76d1\u542c\u5668\u6216\u56de\u8c03\u6ca1\u6709\u88ab\u6b63\u786e\u79fb\u9664\uff0c\u5bfc\u81f4\u5bf9\u8c61\u65e0\u6cd5\u88ab\u5783\u573e\u56de\u6536\u3002<\/p>\n
      public class MyListener {\n    \/\/ \u6ce8\u518c\u76d1\u542c\u5668\n    public void registerListener(Object obj) {\n        SomeClass.addListener(obj);\n    }\n\n    \/\/ \u672a\u6b63\u786e\u79fb\u9664\u76d1\u542c\u5668\n    public void unregisterListener(Object obj) {\n        \/\/ SomeClass.removeListener(obj);\n    }\n}\n<\/code><\/pre>\n<\/li>\n<\/ol>\n
      \u907f\u514d\u5185\u5b58\u6ea2\u51fa\u548c\u5185\u5b58\u6cc4\u6f0f\u7684\u5173\u952e\u5728\u4e8e\u5408\u7406\u8bbe\u8ba1\u548c\u7ba1\u7406\u7a0b\u5e8f\u7684\u5185\u5b58\u4f7f\u7528\uff0c\u53ca\u65f6\u91ca\u653e\u4e0d\u518d\u4f7f\u7528\u7684\u5bf9\u8c61\u5f15\u7528\uff0c\u4ee5\u53ca\u901a\u8fc7\u5de5\u5177\u548c\u6280\u672f\u8fdb\u884c\u5185\u5b58\u5206\u6790\u548c\u6027\u80fd\u4f18\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5728Java\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5185\u5b58\u6ea2\u51fa\uff08OutOfMemoryError\uff09\u548c\u5185\u5b58\u6cc4\u6f0f\u662f\u5e38\u89c1\u7684\u95ee\u9898\uff0c\u5b83\u4eec\u901a\u5e38\u7531\u4e0d\u6b63\u786e\u7684\u5185 […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[119],"tags":[],"class_list":["post-9995","post","type-post","status-publish","format-standard","hentry","category-jvm"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=9995"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9995\/revisions"}],"predecessor-version":[{"id":16784,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/9995\/revisions\/16784"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=9995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=9995"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=9995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}