{"id":11372,"date":"2023-11-28T22:02:56","date_gmt":"2023-11-28T14:02:56","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=11372"},"modified":"2023-12-09T09:59:59","modified_gmt":"2023-12-09T01:59:59","slug":"jvm-zhong-nei-cun-yi-chu-he-nei-cun-xie-lou-de-qu","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/jvm-zhong-nei-cun-yi-chu-he-nei-cun-xie-lou-de-qu\/","title":{"rendered":"JVM\u4e2d\u5185\u5b58\u6ea2\u51fa\u548c\u5185\u5b58\u6cc4\u6f0f\u7684\u533a\u522b\uff1f"},"content":{"rendered":"

\u5185\u5b58\u6ea2\u51fa\uff08Memory Overflow\uff09\u548c\u5185\u5b58\u6cc4\u6f0f\uff08Memory Leak\uff09\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u5185\u5b58\u95ee\u9898\uff0c\u5b83\u4eec\u5728Java\u5e94\u7528\u7a0b\u5e8f\u4e2d\u90fd\u53ef\u80fd\u5bfc\u81f4\u7a0b\u5e8f\u7684\u5f02\u5e38\u884c\u4e3a\uff0c\u4f46\u6839\u672c\u539f\u56e0\u548c\u8868\u73b0\u65b9\u5f0f\u6709\u6240\u4e0d\u540c\u3002<\/p>\n

<\/span><\/a>\u5185\u5b58\u6ea2\u51fa\uff08Memory Overflow\uff09\uff1a<\/h3>\n

\u5185\u5b58\u6ea2\u51fa\u6307\u7684\u662f\u5e94\u7528\u7a0b\u5e8f\u5728\u7533\u8bf7\u5185\u5b58\u65f6\uff0c\u6ca1\u6709\u8db3\u591f\u7684\u5185\u5b58\u53ef\u4f9b\u4f7f\u7528\uff0c\u5bfc\u81f4\u5185\u5b58\u8017\u5c3d\uff0c\u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\u7a0b\u5e8f\u3002\u8fd9\u901a\u5e38\u662f\u7531\u4e8e\u7533\u8bf7\u7684\u5185\u5b58\u7a7a\u95f4\u8fc7\u5927\uff0c\u800c\u7cfb\u7edf\u65e0\u6cd5\u5206\u914d\u8db3\u591f\u7684\u5185\u5b58\u6765\u6ee1\u8db3\u8bf7\u6c42\u3002<\/p>\n

\u5e38\u89c1\u7684\u5185\u5b58\u6ea2\u51fa\u7684\u60c5\u51b5\u6709\uff1a<\/p>\n

    \n
  1. \n\u5806\u5185\u5b58\u6ea2\u51fa\uff1a<\/strong> \u5f53Java\u5e94\u7528\u7a0b\u5e8f\u7684\u5806\u5185\u5b58\u88ab\u8017\u5c3d\uff0c\u65e0\u6cd5\u518d\u4e3a\u65b0\u7684\u5bf9\u8c61\u5206\u914d\u5185\u5b58\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u5806\u5185\u5b58\u6ea2\u51fa\u3002\u8fd9\u662f\u6700\u5e38\u89c1\u7684\u5185\u5b58\u6ea2\u51fa\u60c5\u51b5\u3002<\/p>\n
    List<Object> list = new ArrayList<>();\nwhile (true) {\n    list.add(new Object());\n}\n<\/code><\/pre>\n<\/li>\n
  2. \n\u6808\u5185\u5b58\u6ea2\u51fa\uff1a<\/strong> \u5f53Java\u5e94\u7528\u7a0b\u5e8f\u7684\u6808\u5185\u5b58\u6ea2\u51fa\u65f6\uff0c\u901a\u5e38\u662f\u7531\u4e8e\u9012\u5f52\u8c03\u7528\u5c42\u6b21\u592a\u6df1\uff0c\u5bfc\u81f4\u6808\u7a7a\u95f4\u8017\u5c3d\u3002<\/p>\n
    public void recursiveMethod() {\n    recursiveMethod();\n}\n<\/code><\/pre>\n<\/li>\n<\/ol>\n
    <\/span><\/a>\u5185\u5b58\u6cc4\u6f0f\uff08Memory Leak\uff09\uff1a<\/h3>\n
    \u5185\u5b58\u6cc4\u6f0f\u6307\u7684\u662f\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u67d0\u4e9b\u5bf9\u8c61\u88ab\u5206\u914d\u4e86\u5185\u5b58\u7a7a\u95f4\uff0c\u4f46\u5728\u4e0d\u518d\u9700\u8981\u4f7f\u7528\u8fd9\u4e9b\u5bf9\u8c61\u540e\uff0c\u6ca1\u6709\u6b63\u786e\u91ca\u653e\u5bf9\u5e94\u7684\u5185\u5b58\uff0c\u5bfc\u81f4\u7cfb\u7edf\u4e2d\u4e00\u76f4\u5b58\u5728\u65e0\u7528\u7684\u5bf9\u8c61\uff0c\u6700\u7ec8\u5bfc\u81f4\u53ef\u7528\u5185\u5b58\u51cf\u5c11\uff0c\u7cfb\u7edf\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n
    \u5e38\u89c1\u7684\u5185\u5b58\u6cc4\u6f0f\u7684\u60c5\u51b5\u6709\uff1a<\/p>\n
      \n
    1. \n\u65e0\u7528\u5bf9\u8c61\u5f15\u7528\uff1a<\/strong> \u5f53\u7a0b\u5e8f\u4e2d\u7684\u5bf9\u8c61\u4e0d\u518d\u4f7f\u7528\uff0c\u4f46\u4ecd\u7136\u4fdd\u7559\u5bf9\u8fd9\u4e9b\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u5bfc\u81f4\u5783\u573e\u56de\u6536\u5668\u65e0\u6cd5\u56de\u6536\u8fd9\u4e9b\u5bf9\u8c61\uff0c\u5c31\u4f1a\u53d1\u751f\u5185\u5b58\u6cc4\u6f0f\u3002<\/p>\n
      List<Object> list = new ArrayList<>();\n\/\/ \u4e0d\u518d\u9700\u8981list\uff0c\u4f46\u6ca1\u6709\u5c06\u5176\u7f6e\u4e3anull\n<\/code><\/pre>\n<\/li>\n
    2. \n\u5bf9\u8c61\u751f\u547d\u5468\u671f\u8fc7\u957f\uff1a<\/strong> \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u8fc7\u957f\uff0c\u5bfc\u81f4\u5373\u4f7f\u5bf9\u8c61\u4e0d\u518d\u9700\u8981\uff0c\u4e5f\u65e0\u6cd5\u88ab\u5783\u573e\u56de\u6536\u3002<\/p>\n
      static List<Object> globalList = new ArrayList<>();\n\npublic void addToGlobalList(Object obj) {\n    globalList.add(obj);\n}\n<\/code><\/pre>\n<\/li>\n<\/ol>\n
      \u5728\u5904\u7406\u5185\u5b58\u6ea2\u51fa\u548c\u5185\u5b58\u6cc4\u6f0f\u65f6\uff0c\u901a\u5e38\u9700\u8981\u4f7f\u7528\u4e00\u4e9b\u5de5\u5177\uff0c\u5982\u5185\u5b58\u5206\u6790\u5de5\u5177\uff08Memory Profiler\uff09\u6765\u5e2e\u52a9\u68c0\u6d4b\u548c\u5b9a\u4f4d\u95ee\u9898\u3002\u4fee\u590d\u5185\u5b58\u6ea2\u51fa\u901a\u5e38\u6d89\u53ca\u5230\u8c03\u6574\u5e94\u7528\u7a0b\u5e8f\u7684\u5185\u5b58\u5206\u914d\u7b56\u7565\uff0c\u800c\u4fee\u590d\u5185\u5b58\u6cc4\u6f0f\u5219\u9700\u8981\u5ba1\u67e5\u4ee3\u7801\uff0c\u786e\u4fdd\u4e0d\u518d\u9700\u8981\u7684\u5bf9\u8c61\u80fd\u591f\u88ab\u6b63\u786e\u91ca\u653e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5185\u5b58\u6ea2\u51fa\uff08Memory Overflow\uff09\u548c\u5185\u5b58\u6cc4\u6f0f\uff08Memory Leak\uff09\u662f\u4e24\u79cd\u4e0d\u540c\u7684\u5185\u5b58\u95ee\u9898\uff0c\u5b83\u4eec\u5728Ja […]<\/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-11372","post","type-post","status-publish","format-standard","hentry","category-jvm"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11372","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=11372"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11372\/revisions"}],"predecessor-version":[{"id":17038,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/11372\/revisions\/17038"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=11372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=11372"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=11372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}