{"id":1406,"date":"2022-11-02T23:03:02","date_gmt":"2022-11-02T15:03:02","guid":{"rendered":"https:\/\/qaqaq.top\/?p=1406"},"modified":"2023-01-05T18:06:35","modified_gmt":"2023-01-05T10:06:35","slug":"%e5%8f%8d%e5%b0%84-%e5%a4%8d%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/qaqaq.top\/?p=1406","title":{"rendered":"\u53cd\u5c04-\u590d\u4e60"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>1. \u5199\u51fa\u83b7\u53d6Class\u5b9e\u4f8b\u7684\u4e09\u79cd\u5e38\u89c1\u65b9\u5f0f\nClass clazz1 = String.class\nClass clazz2 = person.getClass(); \/\/sout(person); \/\/xxx.yyy.zzz.Person@...\nClass clazz3 = Class.forName(String classPath); \/\/\u4f53\u73b0\u53cd\u5c04\u7684\u52a8\u6001\u6027\n\n2. \u8c08\u8c08\u4f60\u5bf9Class\u7c7b\u7684\u7406\u89e3\nClass\u5b9e\u4f8b\u5bf9\u5e94\u7740\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u7684\u4e00\u4e2a\u8fd0\u884c\u65f6\u7c7b\u3002\u5373\u52a0\u8f7d\u5230\u5185\u5b58\u4e2d\u7684\u4e00\u4e2a\u7c7b\u3002\n\n3. \u521b\u5efaClass\u5bf9\u5e94\u8fd0\u884c\u65f6\u7c7b\u7684\u5bf9\u8c61\u7684\u901a\u7528\u65b9\u6cd5\uff0c\u4ee3\u7801\u5b9e\u73b0\u3002\u4ee5\u53ca\u8fd9\u6837\u64cd\u4f5c\uff0c\u9700\u8981\u5bf9\u5e94\u7684\u8fd0\u884c\u65f6\u7c7b\u6784\u9020\u5668\u65b9\u9762\u6ee1\u8db3\u7684\u8981\u6c42\u3002\nObject obj = clazz.newInstance(); \/\/\u521b\u5efa\u4e86\u5bf9\u5e94\u7684\u8fd0\u884c\u65f6\u7c7b\u7684\u5bf9\u8c61\n   1. \u5fc5\u987b\u6709\u7a7a\u53c2\u7684\u6784\u9020\u5668\n   2. \u6743\u9650\u4fee\u9970\u7b26\u7684\u6743\u9650\u8981\u591f\u3002\u901a\u5e38\u8bbe\u7f6e\u4e3apublic\n\n4.\u5728\u5de5\u7a0b\u6216module\u7684src\u4e0b\u6709\u540d\u4e3ajdbc.properties\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u6587\u4ef6\u5185\u5bb9\u4e3a\uff1aname=Tom\u3002\u5982\u4f55\u5728\u7a0b\u5e8f\u4e2d\u901a\u8fc7\u4ee3\u7801\u83b7\u53d6Tom\u8fd9\u4e2a\u53d8\u91cf\u503c\u3002\u4ee3\u7801\u5b9e\u73b0\n\n5.\u5982\u4f55\u8c03\u7528\u65b9\u6cd5show()\n\u7c7b\u58f0\u660e\u5982\u4e0b\uff1a\npackage top.qaqaq.java;\nclass User{\n\tpublic void show(){\n\t\tSystem.out.println(\"\u6211\u662f\u4e00\u4e2a\u4e2d\u56fd\u4eba\uff01\")\n\t}\n}\n\nUser user = (User)clazz.newInstance();\nMethod show = clazz.getDeclaredMethod(\"show\");\nshow.setAccessiable(true);\nshow.invoke(user);<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>package top.qaqaq.java.P659;\n\n\/**\n * @author RichieZhang\n * @create 2022-11-02 \u4e0b\u5348 6:25\n *\/\npublic class User {\n\n    private String name;\n    private int age;\n\n    public User() {\n    }\n\n    public User(String name, int age) {\n        this.name = name;\n        this.age = age;\n    }\n\n    public String getName() {\n        return name;\n    }\n\n    public void setName(String name) {\n        this.name = name;\n    }\n\n    public int getAge() {\n        return age;\n    }\n\n    public void setAge(int age) {\n        this.age = age;\n    }\n\n    public void show(){\n        System.out.println(\"\u6211\u662f\u4e00\u4e2a\u4e2d\u56fd\u4eba\uff01\");\n    }\n\n    @Override\n    public String toString() {\n        return \"User{\" +\n                \"name='\" + name + '\\'' +\n                \", age=\" + age +\n                '}';\n    }\n}\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[46],"class_list":["post-1406","post","type-post","status-publish","format-standard","hentry","category-java-","tag-java"],"_links":{"self":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1406"}],"collection":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1406"}],"version-history":[{"count":3,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1406\/revisions"}],"predecessor-version":[{"id":3251,"href":"https:\/\/qaqaq.top\/index.php?rest_route=\/wp\/v2\/posts\/1406\/revisions\/3251"}],"wp:attachment":[{"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1406"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1406"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/qaqaq.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1406"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}