{"id":125154,"date":"2020-06-25T07:57:12","date_gmt":"2020-06-24T23:57:12","guid":{"rendered":"http:\/\/4563.org\/?p=125154"},"modified":"2020-06-25T07:57:12","modified_gmt":"2020-06-24T23:57:12","slug":"java-%e5%8a%a8%e6%80%81%e4%bb%a3%e7%90%86%e7%b1%bb%e5%a6%82%e4%bd%95%e6%9f%a5%e7%9c%8b%e5%ad%97%e8%8a%82%e7%a0%81","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=125154","title":{"rendered":"Java \u52a8\u6001\u4ee3\u7406\u7c7b\u5982\u4f55\u67e5\u770b\u5b57\u8282\u7801"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  Java \u52a8\u6001\u4ee3\u7406\u7c7b\u5982\u4f55\u67e5\u770b\u5b57\u8282\u7801               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : CharlesOfBit <\/span>  <span><i><\/i> 7<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>\u8bf7\u6559\u5404\u4f4d\uff0c\u5bf9\u4e8e java \u4e2d\u52a8\u6001\u4ee3\u7406\u751f\u6210\u7684\u7c7b\uff08 Cglib\uff0cJavassist\uff0cASM \uff09\uff0c\u5982\u4f55\u53bb\u67e5\u770b\u5bf9\u5e94\u7684\u5b57\u8282\u7801\u6216\u8005\u6e90\u7801\uff1f<\/p>\n<p>\u6211\u76ee\u524d\u7684\u65b9\u6cd5\u662f\u53bb\u770b\u52a8\u6001\u4ee3\u7406\u7c7b\u7684\u751f\u6210\u8fc7\u7a0b\uff0c\u4f46\u662f\u8fd9\u79cd\u65b9\u5f0f\u6548\u7387\u975e\u5e38\u4f4e\uff0c\u5728\u7f51\u4e0a\u4e5f\u6ca1\u641c\u7d22\u5230\u597d\u7684\u529e\u6cd5\uff0c\u671f\u5f85\u5927\u4f6c\u4eec\u7684\u6307\u70b9\u3002<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>7<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"2077495\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : wujichao <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u7528 arthas \u53bb\u770b\u4e0b runtime \u7684 class?                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"2077496\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : BBCCBB <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             Asm \u5e93\u7684 TraceClassVisitor \u5e94\u8be5\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u79cd\u6548\u679c                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"2077497\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u4e3b<\/span> <span>\u8cc7\u6df1\u5927\u4f6c : CharlesOfBit <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u7ed9\u5927\u4f6c\u70b9\u8d5e\uff0c\u521a\u8bd5\u4e86\u4e0b\uff0c\u771f\u7684\u5f88\u597d\u7528                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"2077498\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : cweijan <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u6709\u8da3\u7684\u95ee\u9898, \u521a\u624d\u8bd5\u4e86\u4e00\u4e0b, \u53d1\u73b0\u662f\u53ef\u884c\u7684, \u6b65\u9aa4: <br \/>1. \u5728 ClassLoader#defineClass \u6253\u6761\u4ef6\u65ad\u70b9(\u6839\u636e\u540d\u79f0)<br \/>2. new FileOutputStream(&#8220;D:\/\/test.class&#8221;).write(b), \u5c06\u5b57\u8282\u6d41\u8f93\u51fa\u5230\u78c1\u76d8<br \/>3. \u7528 IDEA(\u6216\u5176\u4ed6)\u6253\u5f00 class \u6587\u4ef6                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"2077499\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : monkeyWie <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u62ff\u53bb\u4e0d\u8c22\uff0chttps:\/\/monkeywie.github.io\/2018\/07\/25\/jvm-dump-class\/                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"2077500\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : cweijan <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @monkeyWie \u54ce\u5440, \u8001\u54e5\u7adf\u7136\u662f proxyee-down \u7684\u4f5c\u8005                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"2077501\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : monkeyWie <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @cweijan                                                             <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>Java \u52a8\u6001\u4ee3\u7406\u7c7b\u5982\u4f55\u67e5\u770b\u5b57\u8282\u7801&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/125154"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=125154"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/125154\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=125154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=125154"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=125154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}