{"id":18150,"date":"2025-06-27T12:14:23","date_gmt":"2025-06-27T04:14:23","guid":{"rendered":"https:\/\/92it.top\/?p=18150"},"modified":"2025-07-08T21:44:27","modified_gmt":"2025-07-08T13:44:27","slug":"java%e5%9f%ba%e7%a1%80%e4%b9%8b-%e5%8f%8d%e5%b0%84%ef%bc%88%e9%9d%9e%e5%b8%b8%e9%87%8d%e8%a6%81%ef%bc%89","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=18150","title":{"rendered":"Java\u57fa\u7840\u4e4b\u2014\u53cd\u5c04\uff08\u975e\u5e38\u91cd\u8981\uff09"},"content":{"rendered":"\n<p>\u8f6c\u8f7d\uff1a<a href=\"https:\/\/blog.csdn.net\/CSDN2497242041\/article\/details\/101886097\">https:\/\/blog.csdn.net\/CSDN2497242041\/article\/details\/101886097<\/a><\/p>\n\n\n\n<p><strong>\u53cd\u5c04\u662f\u6846\u67b6\u8bbe\u8ba1\u7684\u7075\u9b42<\/strong><\/p>\n\n\n\n<p><strong>\uff08\u4f7f\u7528\u7684\u524d\u63d0\u6761\u4ef6\uff1a\u5fc5\u987b\u5148\u5f97\u5230\u4ee3\u8868\u7684\u5b57\u8282\u7801\u7684Class\uff0cClass\u7c7b\u7528\u4e8e\u8868\u793a.class\u6587\u4ef6\uff08\u5b57\u8282\u7801\uff09\uff09<\/strong><\/p>\n\n\n\n<p>\u9996\u5148\uff0cJava\u662f\u9759\u6001\u8bed\u8a00\uff1b\u4e3a\u4e86\u5b9e\u73b0\u4e00\u5b9a\u7684\u52a8\u6001\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7<strong>\u53cd\u5c04\u673a\u5236<\/strong>\u83b7\u5f97\u7c7b\u4f3c\u52a8\u6001\u8bed\u8a00\u7684\u7279\u6027\uff0cJava\u7684\u52a8\u6001\u6027\u8ba9\u7f16\u7a0b\u53d8\u5f97\u66f4\u52a0\u7075\u6d3b\u3002<\/p>\n\n\n\n<p>\u53cd\u5c04\u53ef\u4ee5\u7528\u6765\u7f16\u5199\u80fd\u591f\u52a8\u6001\u64cd\u7eb5Java\u4ee3\u7801\u7684\u7a0b\u5e8f\u3002\u4f7f\u7528\u53cd\u5c04\uff0cJava\u53ef\u4ee5\u652f\u6301\u7528\u6237\u754c\u9762\u751f\u6210\u5668\u3001\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\u5668\u4ee5\u53ca\u5f88\u591a\u5176\u4ed6\u9700\u8981\u52a8\u6001\u67e5\u8be2\u7c7b\u80fd\u529b\u7684\u5f00\u53d1\u5de5\u5177\u3002<strong>Java\u7684\u53cd\u5c04\u662f\u6307\u7a0b\u5e8f\u5728\u8fd0\u884c\u671f\u53ef\u4ee5\u62ff\u5230\u4e00\u4e2a\u5bf9\u8c61\u7684\u6240\u6709\u4fe1\u606f\uff0c\u5e76\u80fd\u76f4\u63a5\u64cd\u4f5c\u4efb\u610f\u5bf9\u8c61\u5185\u90e8\u5c5e\u6027\u53ca\u65b9\u6cd5\u3002<\/strong><\/p>\n\n\n\n<p>\u52a0\u8f7d\u5b8c\u7c7b\u4e4b\u540e\uff0c\u5728\u5806\u5185\u5b58\u7684\u65b9\u6cd5\u533a\u4e2d\u5c31\u751f\u6210\u4e86\u4e00\u4e2aClass\u7c7b\u7c7b\u578b\u7684\u5bf9\u8c61\uff08\u4e00\u4e2a\u7c7b\u53ea\u6709\u4e00\u4e2aClass\u5bf9\u8c61\uff09\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u5c31\u5305\u542b\u4e86<strong>\u5b8c\u6574\u7684\u7c7b\u7684\u7ed3\u6784\u4fe1\u606f\u3002<\/strong>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e2a\u5bf9\u8c61\u770b\u5230\u7c7b\u7684\u7ed3\u6784\u3002&nbsp;<strong>\u8fd9\u4e2a\u5bf9\u8c61\u5c31\u7c7b\u4f3c\u4e00\u4e2a\u955c\u5b50\uff0c\u900f\u8fc7\u955c\u5b50\u53ef\u4ee5\u770b\u5230\u7c7b\u7ed3\u6784\uff0c\u6240\u4ee5\u6211\u4eec\u79f0\u4e4b\u4e3a\u53cd\u5c04\u3002<\/strong><\/p>\n\n\n\n<p>\u5404\u7c7b\u6846\u67b6\u5e95\u5c42\uff0c\u90fd\u9700\u8981\u7528\u5230\u53cd\u5c04\u3002<\/p>\n\n\n\n<p><strong>\u53cd\u5c04\u539f\u7406\u56fe<\/strong><\/p>\n\n\n\n<hr 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class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"416\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-1024x416.png\" alt=\"\" class=\"wp-image-18153\" style=\"width:706px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-1024x416.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-300x122.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-768x312.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-1536x624.png 1536w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-2048x832.png 2048w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-830x337.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-230x93.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-350x142.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-445-480x195.png 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>\u3000<\/p>\n\n\n\n<p>\u67e5\u770bClass\u7c7b\u5728java\u4e2d\u7684api\u8be6\u89e3\uff081.7\u7684API\uff09<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"486\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-1024x486.png\" alt=\"\" class=\"wp-image-18155\" style=\"width:638px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-1024x486.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-300x142.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-768x364.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-1536x729.png 1536w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-2048x971.png 2048w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-830x394.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-230x109.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-350x166.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-447-480x228.png 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p>\u3000<\/p>\n\n\n\n<p>Class \u7c7b\u7684\u5b9e\u4f8b\u8868\u793a\u6b63\u5728\u8fd0\u884c\u7684 Java \u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u7c7b\u548c\u63a5\u53e3\u3002\u4e5f\u5c31\u662fjvm\u4e2d\u6709N\u591a\u7684\u5b9e\u4f8b\u6bcf\u4e2a\u7c7b\u90fd\u6709\u8be5Class\u5bf9\u8c61\u3002\uff08\u5305\u62ec\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff09<br>Class \u6ca1\u6709\u516c\u5171\u6784\u9020\u65b9\u6cd5\u3002Class \u5bf9\u8c61\u662f\u5728\u52a0\u8f7d\u7c7b\u65f6\u7531 Java \u865a\u62df\u673a\u4ee5\u53ca\u901a\u8fc7\u8c03\u7528\u7c7b\u52a0\u8f7d\u5668\u4e2d\u7684defineClass 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class=\"wp-block-preformatted\">JAVA\u53cd\u5c04\u673a\u5236\u662f\u5728\u8fd0\u884c\u72b6\u6001\u4e2d\uff0c\u5bf9\u4e8e\u4efb\u610f\u4e00\u4e2a\u7c7b\uff0c\u90fd\u80fd\u591f\u77e5\u9053\u8fd9\u4e2a\u7c7b\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\uff1b\u5bf9\u4e8e\u4efb\u610f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u90fd\u80fd\u591f\u8c03\u7528\u5b83\u7684\u4efb\u610f\u65b9\u6cd5\u548c\u5c5e\u6027\uff1b\u8fd9\u79cd\u52a8\u6001\u83b7\u53d6\u4fe1\u606f\u4ee5\u53ca\u52a8\u6001\u8c03\u7528\u5bf9\u8c61\u65b9\u6cd5\u7684\u529f\u80fd\u79f0\u4e3aJava\u8bed\u8a00\u7684\u53cd\u5c04\u673a\u5236\u3002<br><\/pre>\n\n\n\n<ul>\n<li><p>1\u3001\u53cd\u5c04\u673a\u5236\u5141\u8bb8Java\u7a0b\u5e8f\u5728\u8fd0\u884c\u65f6\u53d6\u5f97\u4efb\u4f55\u4e00\u4e2a\u5df2\u77e5\u540d\u79f0\u7684class\u7684\u5185\u90e8\u4fe1\u606f\u3002\u53ef\u4ee5\u52a8\u6001\u7684\u83b7\u53d6\u7c7b\u7684\u5b8c\u6574\u7ed3\u6784\u4fe1\u606f\uff0c\u8c03\u7528\u5bf9\u8c61\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u3002<a href=\"https:\/\/www.jianshu.com\/p\/736e58d99bcf\">&nbsp;<\/a><\/p><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\">\u53cd\u5c04\u7684\u6982\u5ff5\uff1a<br>\u6bd4\u5982\u6211\u4eec\u60f3\u770b\u770b\u6211\u4eec\u81ea\u5df1\u957f\u4ec0\u4e48\u6837\u5b50\uff0c\u6211\u4eec\u81ea\u5df1\u80af\u5b9a\u770b\u4e0d\u5230\u81ea\u5df1\u957f\u4ec0\u4e48\u6837\u5b50\uff0c\u6240\u4ee5\uff0c\u6211\u4eec\u501f\u52a9\u955c\u5b50\uff0c\u901a\u8fc7\u955c\u5b50\u7684\u53cd\u5c04\u770b\u5230\u6211\u4eec\u7684\u6837\u5b50\uff0c\u53ef\u4ee5\u770b\u6e05\u6211\u4eec\u81ea\u5df1\u7684\u4e94\u5b98\uff1b<br>\u540c\u7406\uff0cJava\u4e2d\u8fd0\u884c\u7684\u7c7b\uff0c\u4e5f\u6709\u8fd9\u4e48\u4e00\u9762\u955c\u5b50\uff0c\u53ef\u4ee5\u53cd\u5c04\u8be5\u7c7b\u7684\u4e00\u4e9b\u884c\u4e3a\u548c\u5c5e\u6027\uff0c\u800c\u8fd9\u4e2a\u53cd\u5c04\u5c31\u4f53\u73b0\u5728java.lang.Class\u4e2d\u3002\u901a\u8fc7Class\u5bf9\u8c61\uff0c\u53ef\u4ee5\u5f97\u5230\u67d0\u4e2a\u7c7b\u7684\u4e00\u4e9b\u884c\u4e3a\u548c\u5c5e\u6027\uff0c\u751a\u81f3\u6211\u4eec\u901a\u8fc7\u53cd\u5c04\u53ef\u4ee5\u64cd\u4f5c\u8fd9\u4e2a\u5bf9\u8c61\u7684\u884c\u4e3a\u548c\u5c5e\u6027\uff0c\u8fd9\u5c31\u662f\u53cd\u5c04\u673a\u5236\u3002<\/pre>\n\n\n\n<p>\u6211\u4eec\u5bf9\u53cd\u5c04\u7684\u6700\u521d\u63a5\u89e6\u662f\u5b66\u4e60jdbc\u65f6\uff0c\u52a0\u8f7d\u6570\u636e\u5e93\u9a71\u52a8\u65f6\u4f1a\u8fd9\u6837\u5199\uff1aClass.forName(&#8220;com.mysql.jdbc.Driver&#8221;),\u5f53\u65f6\u4f3c\u61c2\u975e\u61c2\u7684\u4e5f\u4e0d\u77e5\u9053\u662f\u4ec0\u4e48\u610f\u601d\uff0c\u968f\u7740\u81ea\u5df1\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u8d8a\u6765\u8d8a\u611f\u89c9\u53cd\u5c04\u7684\u795e\u5947\uff0c\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u63ed\u5f00\u5b83\u7684\u795e\u79d8\u9762\u7eb1\u5427<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<ul>\n<li>2\u3001Java\u662f\u8de8\u5e73\u53f0\u7684\u8bed\u8a00\uff1aJava\u7f16\u5199\u7684\u7a0b\u5e8f\uff0c\u4e00\u6b21\u7f16\u8bd1\uff0c\u5230\u5904\u8fd0\u884c\u3002\u56e0\u4e3aJava\u7684\u6e90\u4ee3\u7801\u4f1a\u88ab\u7f16\u8bd1\u6210.class\u6587\u4ef6\u5b57\u8282\u7801\uff0c\u53ea\u8981\u88c5\u6709Java\u865a\u62df\u673aJVM\u7684\u5730\u65b9\uff0c.class\u6587\u4ef6\u7545\u901a\u65e0\u963b\u3002<\/li>\n<\/ul>\n\n\n\n<p>Java\u7684\u53cd\u5c04\u673a\u5236\uff0c\u64cd\u4f5c\u7684\u5c31\u662f\u8fd9\u4e2a.class\u6587\u4ef6\uff0c\u9996\u5148\u52a0\u8f7d\u76f8\u5e94\u7c7b\u7684\u5b57\u8282\u7801\uff0c\u968f\u540e\u89e3\u5256\uff08\u53cd\u5c04 reflect\uff09\u51fa\u5b57\u8282\u7801\u4e2d\u7684\u6784\u9020\u65b9\u6cd5\u3001\u65b9\u6cd5\u4ee5\u53ca\u53d8\u91cf\u3002\u6240\u4ee5\uff0c\u8981\u60f3\u89e3\u5256\u4e00\u4e2a\u7c7b\uff0c\u5fc5\u987b\u5148\u8981\u83b7\u53d6\u5230\u8be5\u7c7b\u7684\u5b57\u8282\u7801\u6587\u4ef6\u5bf9\u8c61\uff0c\u56e0\u4e3a\u89e3\u5256\u4f7f\u7528\u7684\u5c31\u662fClass\u7c7b\u4e2d\u7684\u65b9\u6cd5\uff0c\u6240\u4ee5\u5148\u8981\u83b7\u53d6\u5230\u6bcf\u4e00\u4e2a\u5b57\u8282\u7801\u6587\u4ef6\u5bf9\u5e94\u7684Class\u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<ul>\n<li>3\u3001\u53cd\u5c04\u4e3b\u8981\u901a\u8fc7Java\u7684<strong>java.lang.Class\u7c7b<\/strong>\u6765\u5b8c\u6210\u3002<\/li>\n<\/ul>\n\n\n\n<p>Class\u7c7b\u5b58\u653e\u7740\u5bf9\u5e94\u7c7b\u578b\u7684\u8fd0\u884c\u65f6\u4fe1\u606f\u3002<br>Java\u8fd0\u884c\u65f6\u865a\u62df\u673a\u4e3a\u6240\u6709\u7684\u7c7b\u578b\u7ef4\u62a4\u4e00\u4e2ajava.lang.Class\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u4fdd\u5b58\u7740\u8be5\u5bf9\u8c61\u7684\u8fd0\u884c\u65f6\u4fe1\u606f\u3002\u6cdb\u578b\u7684\u7684class\u4e3aClass&lt;T><br>\u6bcf\u4e2a\u7c7b\u578b\u7684Class\u5bf9\u8c61\u53ea\u6709\u4e00\u4e2a\uff0c\u4e5f\u5c31\u662f\u8bf4\u5730\u5740\u53ea\u6709\u4e00\u4e2a\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<ul>\n<li>4\u3001\u53cd\u5c04\u7684\u6b65\u9aa4<\/li>\n<\/ul>\n\n\n\n<p>1.\u83b7\u53d6\u76ee\u6807\u5bf9\u8c61\u7684class\uff0c\u4e00\u822c\u4f7f\u7528Class.forName(String clazzName);<br>2.\u901a\u8fc7class\u5bf9\u8c61\u5206\u522b\u83b7\u5f97\u8be5\u7c7b\u578b\u7684\u6784\u9020\u51fd\u6570\u3001\u5c5e\u6027\u548c\u65b9\u6cd5\uff1b<br>3.\u901a\u8fc7\u83b7\u5f97\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u8fdb\u884c\u8fdb\u4e00\u6b65\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\u4e8c\u3001\u53cd\u5c04\u6d89\u53ca\u7684Class\u7c7b\u548cjava.lang.reflect<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u53cd\u5c04\u6d89\u53ca\u7684\u7c7b\uff0c\u9664\u4e86Class\u7c7b\u4e4b\u5916\uff0c\u57fa\u672c\u4e0a\u90fd\u5728java.lang.reflect\u5305\u91cc\u9762\uff0c\u5e38\u7528\u7684\u7c7b\u6709Constructor\uff0cField\uff0cMethod\u7c7b\u7b49\uff0cAccessibleObject\u7c7b\u662f\u524d\u9762\u4e09\u4e2a\u7c7b\u7684\u57fa\u7c7b\uff0c\u4e3b\u8981\u5305\u542b\u8bbe\u7f6e\u5b89\u5168\u6027\u68c0\u67e5\u7b49\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>1\u3001\u53cd\u5c04\u80fd\u7528\u6765\u505a\u4ec0\u4e48\uff1f<\/strong><\/p>\n\n\n\n<p>\u6211\u4eec\u77e5\u9053\u53cd\u5c04\u673a\u5236\u5141\u8bb8\u7a0b\u5e8f\u5728\u8fd0\u884c\u65f6\u53d6\u5f97\u4efb\u4f55\u4e00\u4e2a\u5df2\u77e5\u540d\u79f0\u7684class\u7684\u5185\u90e8\u4fe1\u606f\uff0c\u5305\u62ec\u5305\u62ec\u5176modifiers(\u4fee\u9970\u7b26)\uff0cfields(\u5c5e\u6027)\uff0cmethods(\u65b9\u6cd5)\u7b49\uff0c\u5e76\u53ef\u4e8e\u8fd0\u884c\u65f6\u6539\u53d8fields\u5185\u5bb9\u6216\u8c03\u7528methods\u3002\u90a3\u4e48\u6211\u4eec\u4fbf\u53ef\u4ee5\u66f4\u7075\u6d3b\u7684\u7f16\u5199\u4ee3\u7801\uff0c\u4ee3\u7801\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u88c5\u914d\uff0c\u65e0\u9700\u5728\u7ec4\u4ef6\u4e4b\u95f4\u8fdb\u884c\u6e90\u4ee3\u7801\u94fe\u63a5\uff0c\u964d\u4f4e\u4ee3\u7801\u7684\u8026\u5408\u5ea6\uff1b\u8fd8\u6709\u52a8\u6001\u4ee3\u7406\u7684\u5b9e\u73b0\u7b49\u7b49\uff1b\u4f46\u662f\u9700\u8981\u6ce8\u610f\u7684\u662f\u53cd\u5c04\u4f7f\u7528\u4e0d\u5f53\u4f1a\u9020\u6210\u5f88\u9ad8\u7684\u8d44\u6e90\u6d88\u8017\uff01<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>2\u3001\u53cd\u5c04\u7684\u5177\u4f53\u5b9e\u73b0<\/strong><\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u57fa\u672c\u7684\u7c7b Person<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class Person\n {\n    \/\/\u79c1\u6709\u5c5e\u6027\n    private String name = \"AME\";\n    \/\/\u516c\u6709\u5c5e\u6027\n    public int age = 18;\n    \/\/\u6784\u9020\u65b9\u6cd5\n    public Person() {    \n    }\n    \/\/\u79c1\u6709\u65b9\u6cd5\n    private void eat(){\n        System.out.println(\"private eat()...\");\n    }\n    \/\/\u516c\u6709\u65b9\u6cd5\n    public void play(){\n        System.out.println(\"public play()...\");\n    }\n}<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\uff13\u3001Java\u83b7\u53d6Class\u7684\u4e09\u79cd\u65b9\u5f0f<\/strong><\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">a\u3001\u901a\u8fc7\u7ed9\u5b9a\u7c7b\u7684\u5168\u9650\u5b9a(\u5305\u540d+\u7c7b\u540d)\u5b57\u7b26\u4e32\u540d\u79f0\u5c31\u53ef\u4ee5\u83b7\u53d6\u8be5\u7c7b\u7684\u5b57\u8282\u7801\u5bf9\u8c61\uff0c\u901a\u8fc7 Class.forName() \u65b9\u6cd5\u5b8c\u6210\u3002\n\nb\u3001\u901a\u8fc7 Object \u7c7b\u4e2d\u7684 getClass() \u65b9\u6cd5\uff0c\u60f3\u8981\u7528\u8fd9\u79cd\u65b9\u6cd5\u5fc5\u987b\u8981\u660e\u786e\u5177\u4f53\u7684\u7c7b\u5e76\u4e14\u521b\u5efa\u8be5\u7c7b\u7684\u5bf9\u8c61\u3002\n\nc\u3001\u901a\u8fc7\u9759\u6001\u5c5e\u6027.class \u6765\u83b7\u53d6\u5bf9\u5e94\u7684 Class \u5bf9\u8c61\u3002\u9700\u8981\u8981\u660e\u786e\u5230\u7c7b\u624d\u80fd\u8c03\u7528\u7c7b\u4e2d\u7684\u9759\u6001\u6210\u5458\u3002<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p>\u53cd\u5c04\u4e2d\uff0c\u6211\u4eec\u5e38\u7528\u7528\u7684\u662f\u7b2c\u4e00\u79cd\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u4f1a\u629b\u51faClassNotFoundException\u5f02\u5e38\u3002<\/p>\n\n\n\n<p>Class.forName(&#8220;\u7c7b\u7684\u5168\u9650\u5b9a\u540d&#8221;)\u4e3a\u4ec0\u4e48\u8bf4\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\uff0c\u76f8\u4fe1\u5927\u5bb6\u90fd\u7528\u8fc7Spring\u6216\u8005MyBatis\u7b49\u7b49\u8fd9\u7c7b\u6846\u67b6\uff0c\u5728\u4f7f\u7528\u8fd9\u7c7b\u6846\u67b6\u7684\u65f6\u5019\uff0c\u514d\u4e0d\u4e86\u4e0e\u8be5\u6846\u67b6\u7684XML\u914d\u7f6e\u6587\u4ef6\u6253\u4ea4\u9053\uff0c\u5728\u5f88\u591a\u914d\u7f6e\u7684\u5730\u65b9\u90fd\u4f1a\u586b\u5199\u4e00\u4e2a\u5168\u7c7b\u540d\uff1b\u770b\u8fc7\u6e90\u7801\u7684\u540c\u5b66\u5e94\u8be5\u5c31\u77e5\u9053\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u6846\u67b6\u4f1a\u5148\u89e3\u6790XML\u914d\u7f6e\u6587\u4ef6\u5f97\u5230\u8fd9\u4e2a\u5168\u7c7b\u540d\uff0c\u7136\u540e\u901a\u8fc7\u8fd9\u4e2a\u5168\u7c7b\u540d\u6765\u5f97\u5230Class\u5bf9\u8c61\uff0c\u5b8c\u6210\u540e\u9762\u7684\u53cd\u5c04\u8c03\u7528\u7684\u52a8\u4f5c\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/1\u3001\u901a\u8fc7\u5bf9\u8c61\u8c03\u7528getClass()\u65b9\u6cd5\u6765\u83b7\u53d6,\u901a\u5e38\u5e94\u7528\u5728\uff1a\u6bd4\u5982\u4f60\u4f20\u8fc7\u6765\u4e00\u4e2aObject\u7c7b\u578b\u7684\u5bf9\u8c61\uff0c\n\/\/\u800c\u6211\u4e0d\u77e5\u9053\u4f60\u5177\u4f53\u662f\u4ec0\u4e48\u7c7b\uff0c\u7528\u8fd9\u79cd\u65b9\u6cd5\n\u3000\u3000Person person1= new Person();\n\u3000\u3000Class c1 = person1.getClass();\n        \n\/\/2\u3001\u76f4\u63a5\u901a\u8fc7 \u7c7b\u540d.class \u7684\u65b9\u5f0f\u5f97\u5230,\u8be5\u65b9\u6cd5\u6700\u4e3a\u5b89\u5168\u53ef\u9760\uff0c\u7a0b\u5e8f\u6027\u80fd\u66f4\u9ad8\n\/\/  \u8fd9\u8bf4\u660e\u4efb\u4f55\u4e00\u4e2a\u7c7b\u90fd\u6709\u4e00\u4e2a\u9690\u542b\u7684\u9759\u6001\u6210\u5458\u53d8\u91cf class\n\u3000\u3000Class c2 = Person.class;\n        \n\/\/3\u3001\u901a\u8fc7 Class \u5bf9\u8c61\u7684 forName() \u9759\u6001\u65b9\u6cd5\u6765\u83b7\u53d6\uff0c\u7528\u7684\u6700\u591a\u3002\u4f1a\u629b\u51fa ClassNotFoundException \u5f02\u5e38\n\u3000\u3000Class c3 = Class.forName(\"com.ys.reflex.Person\");<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\uff14\u3001\u901a\u8fc7 Class \u7c7b\u83b7\u53d6\u6210\u5458\u53d8\u91cf\u3001\u6210\u5458\u65b9\u6cd5\u3001\u63a5\u53e3\u3001\u8d85\u7c7b\u3001\u6784\u9020\u65b9\u6cd5\u7b49<\/strong><\/p>\n\n\n\n<ul>\n<li>a\u3001\u901a\u8fc7class\u5bf9\u8c61\u83b7\u5f97Constructor\uff0cField\uff0cMethod\u5bf9\u8c61\u7684API<\/li>\n<\/ul>\n\n\n\n<p>\u6ce8\u610f\uff1agetMethods()\u8be5\u65b9\u6cd5\u662f\u83b7\u53d6\u672c\u7c7b\u4ee5\u53ca\u7236\u7c7b\u6216\u8005\u7236\u63a5\u53e3\u4e2d\u6240\u6709\u7684\u516c\u5171\u65b9\u6cd5(public\u4fee\u9970\u7b26\u4fee\u9970\u7684)<\/p>\n\n\n\n<p>getDeclaredMethods()\u8be5\u65b9\u6cd5\u662f\u83b7\u53d6\u672c\u7c7b\u4e2d\u7684\u6240\u6709\u65b9\u6cd5\uff0c\u5305\u62ec\u79c1\u6709\u7684(private\u3001protected\u3001\u9ed8\u8ba4\u4ee5\u53capublic)\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u540c\u7406\uff0c\u5176\u4ed6\u5173\u4e8e\u5c5e\u6027\u3001\u65b9\u6cd5\u548c\u6784\u9020\u5668\u7684\u201cget\u2026&#8221;\u548c\u201dgetDeclared\u2026\u201c\u90fd\u662f\u4e00\u6837\u7684\u610f\u601d\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n* 1\u3001Constructor(\u7c7b\u6784\u9020\u5668\u7684\u83b7\u53d6)\n* \u5e26\u201cdeclared\u201d\u7684\u65b9\u6cd5\u53ef\u4ee5\u83b7\u53d6\u5305\u62ec\u7ee7\u627f\uff0cpublic\u4e0d\u5305\u62ecprivate\u7684\u6784\u9020\u51fd\u6570\n* \u4e0d\u5e26\u7684\u65e0\u6cd5\u83b7\u53d6\u7ee7\u627f\uff0c\u53ef\u4ee5\u83b7\u53d6public\uff0cprotected,private\u548c\u9ed8\u8ba4\u5305\u8bbf\u95ee\u7684\u6784\u9020\u51fd\u6570\u3002\n*\/\n\/\/\u83b7\u53d6\u6240\u6709\u7684\u6784\u9020\u51fd\u6570(\u516c\u5171\/\u7ee7\u627f)\nConstructor&lt;?>[] getConstructors();\n\/\/\u6307\u5b9a\u53c2\u6570\u83b7\u53d6\u7c7b\u7684\u7279\u5b9a\u6784\u9020\u51fd\u6570(\u4f20\u5165\u6784\u9020\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b)\nConstructor&lt;T> getConstructors(Class&lt;?>... parameterTypes)\n\/\/\u83b7\u53d6\u6307\u5b9a\u7684\u6784\u9020\u51fd\u6570\u4e0d\u5305\u62ec\u7ee7\u627f\nConstructor&lt;T> getDeclaredConstructor(Class&lt;?>... parameterTypes);\n\/\/\u83b7\u53d6\u6240\u6709\u7684\u6784\u9020\u51fd\u6570\u4e0d\u5305\u62ec\u7ee7\u627f\u7684\nConstructor&lt;?> getDeclaredConstructor();\n \n\/**\n* 2\u3001\u83b7\u53d6\u7c7b\u5c5e\u6027\n*\/\n\/\/\u83b7\u53d6\u6307\u5b9a\u5c5e\u6027\uff0c\u4f20\u5165\u5c5e\u6027\u540d\uff08\u516c\u5171\u548c\u7ee7\u627f\uff09\nField getField(String name);\n\/\/\u83b7\u53d6\u6240\u6709\u5c5e\u6027\uff08\u516c\u5171\u548c\u7ee7\u627f\uff09\nField[] getFields();\n\/\/\u83b7\u53d6\u6307\u5b9a\u7684\u5c5e\u6027(\u4e0d\u5305\u62ec\u7ee7\u627f)\nField getDeclaredField(String name);\n\/\/\u83b7\u53d6\u6240\u6709\u5c5e\u6027\uff08\u4e0d\u5305\u62ec\u7ee7\u627f)\nField[] getDeclaredFields();\n \n\/**\n* 3\u3001\u83b7\u53d6\u7c7b\u7684\u65b9\u6cd5\n*\/\n\/\/\u83b7\u53d6\u6307\u5b9a\u7684\u65b9\u6cd5(\u516c\u5171\/\u7ee7\u627f),\u4f20\u5165\u65b9\u6cd5\u540d\uff0c\u65b9\u6cd5\u53c2\u6570\nMethod getMethod(String name, Class&lt;?>... parameterTypes);\n\/\/\u8be5\u65b9\u6cd5\u662f\u83b7\u53d6\u672c\u7c7b\u4ee5\u53ca\u7236\u7c7b\u6216\u8005\u7236\u63a5\u53e3\u4e2d\u6240\u6709\u7684\u516c\u5171\u65b9\u6cd5(public\u4fee\u9970\u7b26\u4fee\u9970\u7684)\nMethod getMethods();\n\/\/\u83b7\u53d6\u6307\u5b9a\u7684\u65b9\u6cd5\uff08\u4e0d\u5305\u62ec\u7ee7\u627f)\nMethod getDeclaredMethod(String name, Class&lt;?>... parameterTypes);\n\/\/\u8be5\u65b9\u6cd5\u662f\u83b7\u53d6\u672c\u7c7b\u4e2d\u7684\u6240\u6709\u65b9\u6cd5\uff0c\u5305\u62ec\u79c1\u6709\u7684(private\u3001protected\u3001\u9ed8\u8ba4\u4ee5\u53capublic)\u7684\u65b9\u6cd5\u3002\nMethod[] getDeclaredMethods();<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<ul>\n<li>b\u3001\u901a\u8fc7\u83b7\u53d6\u7684\u5404\u4e2a\u7c7b\u4fe1\u606f\u8fdb\u884c\u8fdb\u4e00\u6b65\u64cd\u4f5c\u7684API<\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n* 1\u3001\u901a\u8fc7Constructor\u7c7b\u5bf9\u8c61\u83b7\u53d6\u6784\u9020\u51fd\u6570\u4fe1\u606f\n*\/\nString getName();\/\/\u83b7\u53d6\u6784\u9020\u5668\u540d\nClass getDeclaringClass();\/\/\u83b7\u53d6\u4e00\u4e2a\u7528\u4e8e\u63cf\u8ff0\u7c7b\u4e2d\u5b9a\u4e49\u7684\u6784\u9020\u51fd\u6570\u7684class\u5bf9\u8c61\u3002\nint getModifiers(); \/\/\u8fd4\u56deint, \u83b7\u53d6\u6784\u9020\u51fd\u6570\u7684\u4fee\u9970\u7b26\u7b49\u7ea7\u3002\nClass[] getExceptionTypes();\/\/\u83b7\u53d6\u63cf\u8ff0\u65b9\u6cd5\u629b\u51fa\u7684\u5f02\u5e38\u7c7b\u578b\u7684Class\u5bf9\u8c61\u6570\u7ec4\u3002\nClass[] getParameterTypes();\/\/\u83b7\u53d6\u63cf\u8ff0\u53c2\u6570\u7c7b\u578b\u7684Class\u5bf9\u8c61\u6570\u7ec4\u3002\nconstructor.newInstance(Class&lt;?>... parameterTypes);\/\/\u901a\u8fc7\u83b7\u53d6\u7684\u6784\u9020\u51fd\u6570\u7c7b\uff0c\u901a\u8fc7\u6307\u5b9a\n\/\/\u53c2\u6570\u7c7b\u8c03\u7528\u8be5\u6765\u7684\u6307\u5b9a\u6784\u9020\u51fd\u6570\uff0c\u521b\u5efa\u8be5\u7c7b\u578b\u7684\u5b9e\u4f8b\u5bf9\u8c61\u3002\n \n\/**\n* 2\u3001\u901a\u8fc7Field\u7c7b\u5bf9\u8c61\u83b7\u53d6\u6784\u9020\u51fd\u6570\u4fe1\u606f\n*\/\nString getName(); \/\/\u83b7\u53d6\u5c5e\u6027\u540d\nClass getDeclaringClass(); \/\/\u83b7\u53d6Class\u5bf9\u8c61\uff0c\u4e00\u822c\u4e3a\u58f0\u660e\u8be5\u5c5e\u6027\u7684\u7c7b\u7684\u7c7b\u578bclass\nClass getType(); \/\/\u83b7\u53d6\u5c5e\u6027\u7c7b\u578b\u7684Class\u5bf9\u8c61\u3002\nint getModifiers(); \/\/\u8fd4\u56deint, \u83b7\u53d6\u6784\u9020\u51fd\u6570\u7684\u4fee\u9970\u7b26\u7b49\u7ea7\u3002\nObject get(Object obj);\/\/\u8fd4\u56de\u8be5\u7c7b\u578b\u7684\u5bf9\u8c61\u4e0a\u8be5\u5c5e\u6027\u7684\u503c\u3002\nvoid set(Object obj,Object Value);\/\/\u4e3a\u8be5\u7c7b\u578bClass\u7684\u5bf9\u8c61\u7684\u6307\u5b9a\u5bf9\u8c61\uff0c\u7684\u6307\u5b9a\u5c5e\u6027\u8d4b\u503c\u3002\n \n\/**\n* 3\u3001\u901a\u8fc7Method\u7c7b\u5bf9\u8c61\u83b7\u53d6\u6784\u9020\u51fd\u6570\u4fe1\u606f\n*\/\nString getName()\uff1b\/\/\u83b7\u53d6\u65b9\u6cd5\u540d\nClass getDeclaringClass(); \/\/\u83b7\u53d6Class\u5bf9\u8c61\uff0c\u4e00\u822c\u4e3a\u58f0\u660e\u8be5\u65b9\u6cd5\u7684\u7c7b\u7684\u7c7b\u578bclass\nint getModifiers(); \/\/\u8fd4\u56deint, \u83b7\u53d6\u51fd\u6570\u7684\u4fee\u9970\u7b26\u7b49\u7ea7\u3002\nClass[] getExceptionTypes();\/\/\u83b7\u53d6\u63cf\u8ff0\u65b9\u6cd5\u629b\u51fa\u7684\u5f02\u5e38\u7c7b\u578b\u7684Class\u5bf9\u8c61\u6570\u7ec4\u3002\nClass[] getParameterTypes();\/\/\u83b7\u53d6\u63cf\u8ff0\u53c2\u6570\u7c7b\u578b\u7684Class\u5bf9\u8c61\u6570\u7ec4\u3002\nObject invoke(Object obj,Class&lt;?>... parameterTypes);\/\/\u901a\u8fc7\u53cd\u5c04\u7ed3\u5408\u7c7b\u7684\u5b9e\u4f8b\u5bf9\u8c61\u8c03\u7528\u51fd\u6570\u3002<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<ul>\n<li><strong>c\u3001\u603b\u7ed3\uff0cClass\u7c7b\u5e38\u7528\u65b9\u6cd5\uff1a<\/strong><\/li>\n<\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">getSimpleName():\u83b7\u5f97\u7c7b\u540d\u3002\n\ngetName()\uff1a\u83b7\u5f97\u7c7b\u7684\u5b8c\u6574\u540d\u5b57\u3002\ngetFields()\uff1a\u83b7\u5f97\u7c7b\u7684public\u7c7b\u578b\u7684\u5c5e\u6027\u3002\ngetDeclaredFields()\uff1a\u83b7\u5f97\u7c7b\u7684\u6240\u6709\u5c5e\u6027\u3002\u5305\u62ecprivate \u58f0\u660e\u7684\u548c\u7ee7\u627f\u7c7b\ngetMethods()\uff1a\u83b7\u5f97\u7c7b\u7684public\u7c7b\u578b\u7684\u65b9\u6cd5\u3002\ngetDeclaredMethods()\uff1a\u83b7\u5f97\u7c7b\u7684\u6240\u6709\u65b9\u6cd5\u3002\u5305\u62ecprivate \u58f0\u660e\u7684\u548c\u7ee7\u627f\u7c7b\ngetMethod(String name, Class[] parameterTypes)\uff1a\u83b7\u5f97\u7c7b\u7684\u7279\u5b9a\u65b9\u6cd5\uff0cname\u53c2\u6570\u6307\u5b9a\u65b9\u6cd5\u7684\u540d\u5b57\uff0cparameterTypes \u53c2\u6570\u6307\u5b9a\u65b9\u6cd5\u7684\u53c2\u6570\u7c7b\u578b\u3002\ngetConstructors()\uff1a\u83b7\u5f97\u7c7b\u7684public\u7c7b\u578b\u7684\u6784\u9020\u65b9\u6cd5\u3002\ngetConstructor(Class[] parameterTypes)\uff1a\u83b7\u5f97\u7c7b\u7684\u7279\u5b9a\u6784\u9020\u65b9\u6cd5\uff0cparameterTypes \u53c2\u6570\u6307\u5b9a\u6784\u9020\u65b9\u6cd5\u7684\u53c2\u6570\u7c7b\u578b\u3002\nnewInstance()\uff1a\u901a\u8fc7\u7c7b\u7684\u4e0d\u5e26\u53c2\u6570\u7684\u6784\u9020\u65b9\u6cd5\u521b\u5efa\u8fd9\u4e2a\u7c7b\u7684\u4e00\u4e2a\u5bf9\u8c61\u3002<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">String className = c2.getName();\nSystem.out.println(className);\/\/\u8f93\u51facom.qf.cdxt.Person\n        \n\/\/\u83b7\u5f97\u7c7b\u7684public\u7c7b\u578b\u7684\u5c5e\u6027\u3002\nField[] fields = c2.getFields();\nfor(Field field : fields){\n   System.out.println(field.getName());\/\/age\n}\n        \n\/\/\u83b7\u5f97\u7c7b\u7684\u6240\u6709\u5c5e\u6027\u3002\u5305\u62ec\u79c1\u6709\u7684\nField [] allFields = c2.getDeclaredFields();\nfor(Field field : allFields){\n    System.out.println(field.getName());\/\/name    age\n}\n        \n\/\/\u83b7\u5f97\u7c7b\u7684public\u7c7b\u578b\u7684\u65b9\u6cd5\u3002\u8fd9\u91cc\u5305\u62ec Object \u7c7b\u7684\u4e00\u4e9b\u65b9\u6cd5\nMethod [] methods = c2.getMethods();\nfor(Method method : methods){\n    System.out.println(method.getName());\/\/play waid equls toString hashCode\u7b49\n}\n        \n\/\/\u83b7\u5f97\u7c7b\u7684\u6240\u6709\u65b9\u6cd5\u3002\nMethod [] allMethods = c2.getDeclaredMethods();\nfor(Method method : allMethods){\n    System.out.println(method.getName());\/\/play eat\n}\n        \n\/\/\u83b7\u5f97\u6307\u5b9a\u7684\u5c5e\u6027\nField f1 = c2.getField(\"age\");\nSystem.out.println(f1);\n\/\/\u83b7\u5f97\u6307\u5b9a\u7684\u79c1\u6709\u5c5e\u6027\nField f2 = c2.getDeclaredField(\"name\");\n\/\/\u542f\u7528\u548c\u7981\u7528\u8bbf\u95ee\u5b89\u5168\u68c0\u67e5\u7684\u5f00\u5173\uff0c\u503c\u4e3a true\uff0c\u5219\u8868\u793a\u53cd\u5c04\u7684\u5bf9\u8c61\u5728\u4f7f\u7528\u65f6\u5e94\u8be5\u53d6\u6d88 java \u8bed\u8a00\u7684\u8bbf\u95ee\u68c0\u67e5\uff1b\u53cd\u4e4b\u4e0d\u53d6\u6d88\nf2.setAccessible(true);\nSystem.out.println(f2);\n                \n\/\/\u521b\u5efa\u8fd9\u4e2a\u7c7b\u7684\u4e00\u4e2a\u5bf9\u8c61\nObject p2 =  c2.newInstance();\n\/\/\u5c06 p2 \u5bf9\u8c61\u7684  f2 \u5c5e\u6027\u8d4b\u503c\u4e3a Fy\uff0cf2 \u5c5e\u6027\u5373\u4e3a \u79c1\u6709\u5c5e\u6027 name\nf2.set(p2,\"Fy\");\n\/\/\u4f7f\u7528\u53cd\u5c04\u673a\u5236\u53ef\u4ee5\u6253\u7834\u5c01\u88c5\u6027\uff0c\u5bfc\u81f4\u4e86java\u5bf9\u8c61\u7684\u5c5e\u6027\u4e0d\u5b89\u5168\u3002 \nSystem.out.println(f2.get(p2)); \/\/Fy\n        \n\/\/\u83b7\u53d6\u6784\u9020\u65b9\u6cd5\nConstructor [] constructors = c2.getConstructors();\nfor(Constructor constructor : constructors){\n    System.out.println(constructor.toString());\/\/public com.ys.reflex.Person()\n}<\/pre>\n\n\n\n<p>\u4e0a\u9762\u5c31\u662f\u4e00\u4e2a\u53cd\u5c04\u673a\u5236\u7684\u57fa\u672c\u5b9e\u73b0\u4e86\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4e09\u3001\u53cd\u5c04\u673a\u5236\u7684\u5e94\u7528<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>1\u3001\u901a\u8fc7\u53cd\u5c04\u8fd0\u884c\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9<\/strong><\/p>\n\n\n\n<p>Student\u7c7b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class Student {\n    public void show(){\n        System.out.println(\"is show()\");\n    }\n}<\/pre>\n\n\n\n<p>\u914d\u7f6e\u6587\u4ef6\u4ee5txt\u6587\u4ef6\u4e3a\u4f8b\u5b50\uff08pro.txt\uff09\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">className = cn.fanshe.Student\nmethodName = show<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"> import java.io.FileNotFoundException;\n import java.io.FileReader;\n import java.io.IOException;\n import java.lang.reflect.Method;\n import java.util.Properties;\n     \n    \/*\n     * \u6211\u4eec\u5229\u7528\u53cd\u5c04\u548c\u914d\u7f6e\u6587\u4ef6\uff0c\u53ef\u4ee5\u4f7f\uff1a\u5e94\u7528\u7a0b\u5e8f\u66f4\u65b0\u65f6\uff0c\u5bf9\u6e90\u7801\u65e0\u9700\u8fdb\u884c\u4efb\u4f55\u4fee\u6539\n     * \u6211\u4eec\u53ea\u9700\u8981\u5c06\u65b0\u7c7b\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\uff0c\u5e76\u4fee\u6539\u914d\u7f6e\u6587\u4ef6\u5373\u53ef\n     *\/\n    public class Demo {\n        public static void main(String[] args) throws Exception {\n            \/\/\u901a\u8fc7\u53cd\u5c04\u83b7\u53d6Class\u5bf9\u8c61\n            Class stuClass = Class.forName(getValue(\"className\"));\/\/\"cn.fanshe.Student\"\n            \/\/2\u83b7\u53d6show()\u65b9\u6cd5\n            Method m = stuClass.getMethod(getValue(\"methodName\"));\/\/show\n            \/\/3.\u8c03\u7528show()\u65b9\u6cd5\n            m.invoke(stuClass.getConstructor().newInstance());\n            \n        }\n        \n        \/\/\u6b64\u65b9\u6cd5\u63a5\u6536\u4e00\u4e2akey\uff0c\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u83b7\u53d6\u76f8\u5e94\u7684value\n        public static String getValue(String key) throws IOException{\n            Properties pro = new Properties();\/\/\u83b7\u53d6\u914d\u7f6e\u6587\u4ef6\u7684\u5bf9\u8c61\n            FileReader in = new FileReader(\"pro.txt\");\/\/\u83b7\u53d6\u8f93\u5165\u6d41\n            pro.load(in);\/\/\u5c06\u6d41\u52a0\u8f7d\u5230\u914d\u7f6e\u6587\u4ef6\u5bf9\u8c61\u4e2d\n            in.close();\n            return pro.getProperty(key);\/\/\u8fd4\u56de\u6839\u636ekey\u83b7\u53d6\u7684value\u503c\n        }\n    }<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u63a7\u5236\u53f0\u8f93\u51fa\uff1a\nis show()<\/pre>\n\n\n\n<p>\u9700\u6c42\uff1a<br>\u5f53\u6211\u4eec\u5347\u7ea7\u8fd9\u4e2a\u7cfb\u7edf\u65f6\uff0c\u4e0d\u8981Student\u7c7b\uff0c\u800c\u9700\u8981\u65b0\u5199\u4e00\u4e2aStudent2\u7684\u7c7b\u65f6\uff0c\u8fd9\u65f6\u53ea\u9700\u8981\u66f4\u6539pro.txt\u7684\u6587\u4ef6\u5185\u5bb9\u5c31\u53ef\u4ee5\u4e86\u3002\u4ee3\u7801\u5c31\u4e00\u70b9\u4e0d\u7528\u6539\u52a8<\/p>\n\n\n\n<p>\u8981\u66ff\u6362\u7684student2\u7c7b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">    public class Student2 {\n        public void show2(){\n            System.out.println(\"is show2()\");\n        }\n    }<\/pre>\n\n\n\n<p>\u914d\u7f6e\u6587\u4ef6\u66f4\u6539\u4e3a\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\"> className = cn.fanshe.Student2\n methodName = show2<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u63a7\u5236\u53f0\u8f93\u51fa\uff1a\nis show2();<\/pre>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>2\u3001\u901a\u8fc7\u53cd\u5c04\u8d8a\u8fc7\u6cdb\u578b\u68c0\u67e5<\/strong><\/p>\n\n\n\n<p>\u6cdb\u578b\u7528\u5728\u7f16\u8bd1\u671f\uff0c\u7f16\u8bd1\u8fc7\u540e\u6cdb\u578b\u64e6\u9664\uff08\u6d88\u5931\u6389\uff09\u3002\u6240\u4ee5\u662f\u53ef\u4ee5\u901a\u8fc7\u53cd\u5c04\u8d8a\u8fc7\u6cdb\u578b\u68c0\u67e5\u7684\u3002<\/p>\n\n\n\n<p>\u6d4b\u8bd5\u7c7b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">  import java.lang.reflect.Method;\n    import java.util.ArrayList;\n     \n    \/*\n     * \u901a\u8fc7\u53cd\u5c04\u8d8a\u8fc7\u6cdb\u578b\u68c0\u67e5\n     *\n     * \u4f8b\u5982\uff1a\u6709\u4e00\u4e2aString\u6cdb\u578b\u7684\u96c6\u5408\uff0c\u600e\u6837\u80fd\u5411\u8fd9\u4e2a\u96c6\u5408\u4e2d\u6dfb\u52a0\u4e00\u4e2aInteger\u7c7b\u578b\u7684\u503c\uff1f\n     *\/\n    public class Demo {\n        public static void main(String[] args) throws Exception{\n            ArrayList&lt;String> strList = new ArrayList&lt;>();\n            strList.add(\"aaa\");\n            strList.add(\"bbb\");\n            \n        \/\/    strList.add(100);\n            \/\/\u83b7\u53d6ArrayList\u7684Class\u5bf9\u8c61\uff0c\u53cd\u5411\u7684\u8c03\u7528add()\u65b9\u6cd5\uff0c\u6dfb\u52a0\u6570\u636e\n            Class listClass = strList.getClass(); \/\/\u5f97\u5230 strList \u5bf9\u8c61\u7684\u5b57\u8282\u7801 \u5bf9\u8c61\n            \/\/\u83b7\u53d6add()\u65b9\u6cd5\n            Method m = listClass.getMethod(\"add\", Object.class);\n            \/\/\u8c03\u7528add()\u65b9\u6cd5\n            m.invoke(strList, 100);\n            \n            \/\/\u904d\u5386\u96c6\u5408\n            for(Object obj : strList){\n                System.out.println(obj);\n            }\n        }\n    }<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\u63a7\u5236\u53f0\u8f93\u51fa\uff1a\naaa\nbbb\n100<\/pre>\n\n\n\n<p>\u6ce8\u610f\uff1aJava web\u6846\u67b6\u4e2d\uff0c\u91cc\u9762\u5c31\u7528\u5230\u4e86\u53cd\u5c04\u673a\u5236\uff0c\u6bd4\u5982Spring\u4e2d\uff0c\u901a\u8fc7\u7b2c\u4e09\u65b9\u914d\u7f6e\u6587\u4ef6\u5b9e\u73b0\u5bf9\u8c61\u7684\u63a7\u5236\u3002<\/p>\n\n\n\n<p>\u53ea\u8981\u5728\u4ee3\u7801\u6216\u914d\u7f6e\u6587\u4ef6\u4e2d\u770b\u5230\u7c7b\u7684\u5b8c\u5168\u9650\u5b9a\u540d\uff08\u5305\u540d+\u7c7b\u540d\uff09,\u5176\u5e95\u5c42\u539f\u7406\u57fa\u672c\u4e0a\u4f7f\u7528\u7684\u5c31\u662fJava\u53cd\u5c04\u673a\u5236\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u56db\u3001\u53cd\u5c04\u673a\u5236\u5e94\u7528\u4e8eJava SSM\u6846\u67b6<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>Java SSM\u6846\u67b6\u91cc\u9762\u7ecf\u5e38\u7528\u5230\u53cd\u5c04\u673a\u5236\uff0c\u76f8\u4fe1\u5927\u5bb6\u90fd\u7528\u8fc7Spring\u6216\u8005MyBatis\u7b49\u7b49\u8fd9\u7c7b\u6846\u67b6\uff0c\u5728\u4f7f\u7528\u8fd9\u7c7b\u6846\u67b6\u7684\u65f6\u5019\uff0c\u514d\u4e0d\u4e86\u4e0e\u8be5\u6846\u67b6\u7684XML\u914d\u7f6e\u6587\u4ef6\u6253\u4ea4\u9053\uff0c\u5728\u5f88\u591a\u914d\u7f6e\u7684\u5730\u65b9\u90fd\u4f1a\u586b\u5199\u4e00\u4e2a\u5168\u7c7b\u540d\u3002\u770b\u8fc7\u6e90\u7801\u7684\u540c\u5b66\u5e94\u8be5\u5c31\u77e5\u9053\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u6846\u67b6\u4f1a\u5148\u89e3\u6790XML\u914d\u7f6e\u6587\u5f97\u4ef6\u5f97\u5230\u8fd9\u4e2a\u5168\u7c7b\u540d\uff0c\u7136\u540e\u901a\u8fc7\u8fd9\u4e2a\u5168\u7c7b\u540d\u6765\u5f97\u5230Class\u5bf9\u8c61\uff0c\u5b8c\u6210\u540e\u9762\u7684\u53cd\u5c04\u8c03\u7528\u7684\u52a8\u4f5c\u3002\u6bd4\u5982Spring\u4e2d\uff0c\u901a\u8fc7\u7b2c\u4e09\u65b9\u914d\u7f6e\u6587\u4ef6\u5b9e\u73b0\u5bf9\u8c61\u7684\u63a7\u5236\u3002\u53ea\u8981\u5728\u4ee3\u7801\u6216\u914d\u7f6e\u6587\u4ef6\u4e2d\u770b\u5230\u7c7b\u7684\u5b8c\u5168\u9650\u5b9a\u540d\uff08\u5305\u540d+\u7c7b\u540d\uff09,\u8be5Java Web\u6846\u67b6\u5e95\u5c42\u539f\u7406\u57fa\u672c\u4e0a\u4f7f\u7528\u7684\u5c31\u662fJava\u53cd\u5c04\u673a\u5236\u3002\u6240\u4ee5\uff0c\u4e3a\u4e86\u66f4\u597d\u5b66\u4e60Java\u540e\u7aef\u6846\u67b6\uff0c\u6211\u4eec\u6709\u5fc5\u8981\u7406\u89e3\u8fd9\u79cdJava\u53cd\u5c04\u673a\u5236\u3002<\/p>\n\n\n\n<p>\u3000<\/p>\n\n\n\n<p><strong>\u53cd\u5c04\u673a\u5236\u6982\u8ff0<\/strong><\/p>\n\n\n\n<p>\u53cd\u5c04\u673a\u5236\uff1a\u65e0\u975e\u5c31\u662f\u5148\u52a0\u8f7d\u5bf9\u5e94\u5b57\u8282\u7801\u4e2d\u7684\u7c7b\uff0c\u7136\u540e\u6839\u636e\u52a0\u8f7d\u7c7b\u7684\u4fe1\u606f\uff0c\u4e00\u70b9\u70b9\u7684\u53bb\u89e3\u5256\u5176\u4e2d\u7684\u5185\u5bb9\u3002\u4e0d\u7ba1\u4f60\u662fpublic\u7684\u8fd8\u662fprivate\u7684\uff0c\u4ea6\u6216\u662f\u672c\u7c7b\u7684\u8fd8\u662f\u6765\u81ea\u539f\u7ee7\u627f\u5173\u7cfb\u6216\u8005\u5b9e\u73b0\u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u548c\u5b57\u6bb5\uff0c\u6211\u4eecJava\u7684\u53cd\u5c04\u6280\u672freflect\uff0c\u5747\u53ef\u4ee5\u5c06\u5176\u4ece\u5b57\u8282\u7801\u4e2d\u62c9\u56de\u5230\u73b0\u5b9e\uff0c\u4e0d\u4ec5\u53ef\u4ee5\u5f97\u5230\u5b57\u6bb5\u7684\u540d\u5b57\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u83b7\u5f97\u5b57\u6bb5\u7684\u503c\u548c\u4fee\u6539\u5b57\u6bb5\u7684\u503c;\u4e0d\u4ec5\u53ef\u4ee5\u5f97\u5230\u65b9\u6cd5\u7684\u7533\u660e\u6211\u4eec\u8fd8\u53ef\u4ee5\u62ff\u5230\u65b9\u6cd5\u7684\u5b9a\u4e49\u548c\u5524\u8d77\u65b9\u6cd5\uff08\u6267\u884c\u65b9\u6cd5\uff09\u3002<\/p>\n\n\n\n<p>\u5f53\u7136\uff0c\u6211\u4eec\u4f1a\u6709\u8fd9\u6837\u7684\u7591\u60d1\uff1f<\/p>\n\n\n\n<p>\u4e3a\u4ec0\u4e48\uff0c new\u4e00\u4e2a\u5bf9\u8c61\u90a3\u4e48\u7b80\u5355\uff0c\u975e\u8981\u7528\u53cd\u5c04\u6280\u672f\u4e2d\u7684newInstance()\uff1f<br>\u4e3a\u4ec0\u4e48\uff0c\u6211\u53ef\u4ee5\u76f4\u63a5\u5bf9\u8c61a1. \u53d8\u91cf\u8bbf\u95ee\u53d8\u91cf\uff0c\u5374\u975e\u8981\u7528\u53cd\u5c04\u90a3\u4e48\u8d39\u52b2\u7684\u83b7\u5f97name\u5b57\u6bb5\u5462\uff1f<br>\u4e3a\u4ec0\u4e48\uff0c\u6211\u51e0\u884c\u4ee3\u7801\u5c31\u80fd\u641e\u5b9a\u7684\u4e8b\u60c5\uff0c\u975e\u8981\u7528\u53cd\u5c04\u5462\uff1f<\/p>\n\n\n\n<p>\u89e3\u5bc6\u7b54\u6848\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u6765\u601d\u8003\u4e00\u4e2a\u95ee\u9898\uff1f<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u5047\u8bbe\u6211\u4eec\u5b9a\u4e49\u4e86\u5f88\u591a\u7c7b\uff0c\u6709Animal\u3001Person\u3001Car..... \uff0c\u5982\u679c\u6211\u60f3\u8981\u4e00\u4e2aAnimal\u5b9e\u4f8b\uff0c\u90a3\u6211\u5c31new Animal();\u5982\u679c\u53e6\u4e00\u4e2a\u4eba\u60f3\u8981\u4e00\u4e2aPerson\u5b9e\u4f8b\uff0c\u90a3\u4e48\u4ed6\u9700\u8981new Person();\u5f53\u7136,\u53e6\u4e00\u4e2a\u8bf4\uff0c\u6211\u53ea\u8981\u4e00\u4e2aCar\u5b9e\u4f8b\uff0c\u4e8e\u662f\u5b83\u8981new Car()......<br><br>\u8fd9\u6837\u5c31\u4f1a\u5bfc\u81f4\uff0c\u6bcf\u4e2a\u7528\u6237new\u7684\u5bf9\u8c61\u9700\u6c42\u4e0d\u76f8\u540c\uff0c\u56e0\u6b64\u4ed6\u4eec\u53ea\u80fd\u4fee\u6539\u6e90\u4ee3\u7801\uff0c\u5e76\u91cd\u65b0\u7f16\u8bd1\u624d\u80fd\u751f\u6548\u3002\u8fd9\u79cd\u5c06new\u7684\u5bf9\u8c61\u5199\u6b7b\u5728\u4ee3\u7801\u91cc\u7684\u65b9\u6cd5\u975e\u5e38\u4e0d\u7075\u6d3b\uff0c\u56e0\u6b64\uff0c\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\u7684\u65b9\u6cd5\uff0cJava\u63d0\u4f9b\u4e86\u53cd\u5c04\u673a\u5236\u3002<\/pre>\n\n\n\n<p>\u53cd\u5c04\u662fJava\u4e2d\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u80fd\u591f\u4f7f\u6211\u4eec\u5f88\u65b9\u4fbf\u7684\u521b\u5efa\u7075\u6d3b\u7684\u4ee3\u7801\uff0c<strong>\u901a\u8fc7\u53cd\u5c04\u8fd0\u884c\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\uff0c<\/strong>\u8fd9\u4e9b\u4ee3\u7801\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u88c5\u914d\uff0c\u65e0\u9700\u5728\u7ec4\u4ef6\u4e4b\u95f4\u8fdb\u884c\u6e90\u4ee3\u7801\u94fe\u63a5\uff0c\u964d\u4f4e\u4e86\u4ee3\u7801\u7684\u8026\u5408\u5ea6\u3002\u4f46\u8981\u6ce8\u610f\u53cd\u5c04\u4f7f\u7528\u4e0d\u5f53\u7684\u8bdd\u4f1a\u6210\u672c\u5f88\u9ad8\u3002<\/p>\n\n\n\n<p>\u3000\u3000<\/p>\n\n\n\n<p><strong>\u4e94\u3001Spring\u4e2d\u5e94\u7528\u53cd\u5c04\u673a\u5236<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">new Animal();\/\/\u6211\u4eec\u5fc5\u987b\u6307\u5b9aAnimal\u7c7b\u6765\u521b\u5efa\u5bf9\u8c61\nnew \"Animal\"\uff1b\/\/\u6211\u4eec\u5e0c\u671b\u901a\u8fc7\u5b57\u7b26\u4e32\u5c31\u80fd\u627f\u63a5\u4e00\u4e2aAnimal\u5b9e\u4f8b\uff0c\u800c\u8fd9\u4e2a\u5b57\u7b26\u4e32\u6211\u4eec\u53ef\u4ee5\u653e\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\n \n\u5178\u578b\u7684\u5e94\u7528\u5c31\u662fSpring\uff0cSpring\u5c31\u662f\u5c06\u7c7b\u7684\u63cf\u8ff0\u653e\u5728xx.xml\u914d\u7f6e\u6587\u4ef6\u4e2d\uff01\uff01\uff01<\/pre>\n\n\n\n<p>\u6211\u4eec\u77e5\u9053Spring\u7684IOC\u5427\uff0c\u5373\u201c\u63a7\u5236\u53cd\u8f6c\u201d\uff08\u901a\u8fc7\u7b2c\u4e09\u65b9\u914d\u7f6e\u6587\u4ef6\u5b9e\u73b0\u5bf9 \u5bf9\u8c61\u7684\u63a7\u5236\uff09\u3002\u7b80\u5355\u8bf4\u662f\u5c06\u6211\u4eec\u8bbe\u8ba1\u597d\u7684\u5bf9\u8c61\u4ea4\u7ed9\u5bb9\u5668\u63a7\u5236\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u4ea4\u7ed9\u7a0b\u5e8f\u5185\u90e8\u8fdb\u884c\u5bf9\u8c61\u7684\u63a7\u5236\u3002<\/p>\n\n\n\n<p>\u6bd4\u5982\uff0c\u5728Spring\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u770b\u5230\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"199\" src=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-1024x199.png\" alt=\"\" class=\"wp-image-18160\" style=\"width:622px;height:auto\" srcset=\"https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-1024x199.png 1024w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-300x58.png 300w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-768x149.png 768w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-1536x298.png 1536w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-830x161.png 830w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-230x45.png 230w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-350x68.png 350w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448-480x93.png 480w, https:\/\/92it.top\/wp-content\/uploads\/2025\/06\/image-448.png 1648w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n<p><strong>\u9488\u5bf9\u4e0a\u8ff0\u7684\u914d\u7f6e\u6587\u4ef6\uff0c\u6211\u4eecSpring\u662f\u600e\u4e48\u5e2e\u52a9\u6211\u4eec\u5b9e\u4f8b\u5316\u5bf9\u8c61\uff0c\u5e76\u653e\u5230\u5bb9\u5668\u4e2d\u53bb\u4e86\u5462\uff1f \u6ca1\u9519\uff0c\u5c31\u662f\u901a\u8fc7\u53cd\u5c04\uff01\uff01\uff01\uff01<\/strong><\/p>\n\n\n\n<p>\u6211\u4eec\u770b\u4e0b\u4e0b\u9762\u7684\u4f2a\u4ee3\u7801\u5b9e\u73b0\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">            \/\/\u89e3\u6790&lt;bean ...\/>\u5143\u7d20\u7684id\u5c5e\u6027\u5f97\u5230\u8be5\u5b57\u7b26\u4e32\u503c\u4e3a\"sqlSessionFactory\"\n            String idStr = \"sqlSessionFactory\";  \n            \/\/\u89e3\u6790&lt;bean ...\/>\u5143\u7d20\u7684class\u5c5e\u6027\u5f97\u5230\u8be5\u5b57\u7b26\u4e32\u503c\n\u4e3a\"org.mybatis.spring.SqlSessionFactoryBean\"  \n            String classStr = \"org.mybatis.spring.SqlSessionFactoryBean\";\n  \n            \/\/\u5229\u7528\u53cd\u5c04\u77e5\u8bc6\uff0c\u901a\u8fc7classStr\u83b7\u53d6Class\u7c7b\u5bf9\u8c61  \n            Class cls = Class.forName(classStr);  \n            \/\/\u5b9e\u4f8b\u5316\u5bf9\u8c61  \n            Object obj = cls.newInstance();  \n            \/\/container\u8868\u793aSpring\u5bb9\u5668  \n            container.put(idStr, obj);  \n            \n            \/\/\u5f53\u4e00\u4e2a\u7c7b\u91cc\u9762\u9700\u8981\u7528\u53e6\u4e00\u7c7b\u7684\u5bf9\u8c61\u65f6\uff0c\u6211\u4eec\u7ee7\u7eed\u4e0b\u9762\u7684\u64cd\u4f5c\n            \n            \/\/\u89e3\u6790&lt;property ...\/>\u5143\u7d20\u7684name\u5c5e\u6027\u5f97\u5230\u8be5\u5b57\u7b26\u4e32\u503c\u4e3a\u201cdataSource\u201d  \n            String nameStr = \"dataSource\";  \n            \/\/\u89e3\u6790&lt;property ...\/>\u5143\u7d20\u7684ref\u5c5e\u6027\u5f97\u5230\u8be5\u5b57\u7b26\u4e32\u503c\u4e3a\u201cdataSource\u201d  \n            String refStr = \"dataSource\";  \n            \/\/\u751f\u6210\u5c06\u8981\u8c03\u7528setter\u65b9\u6cd5\u540d  \n            String setterName = \"set\" + nameStr.substring(0, 1).toUpperCase()  \n                    + nameStr.substring(1);  \n            \/\/\u83b7\u53d6spring\u5bb9\u5668\u4e2d\u540d\u4e3arefStr\u7684Bean\uff0c\u8be5Bean\u5c06\u4f1a\u4f5c\u4e3a\u4f20\u5165\u53c2\u6570  \n            Object paramBean = container.get(refStr);  \n            \/\/\u83b7\u53d6setter\u65b9\u6cd5\u7684Method\u7c7b\uff0c\u6b64\u5904\u7684cls\u662f\u521a\u624d\u53cd\u5c04\u4ee3\u7801\u5f97\u5230\u7684Class\u5bf9\u8c61  \n            Method setter = cls.getMethod(setterName, paramBean.getClass());  \n            \/\/\u8c03\u7528invoke()\u65b9\u6cd5\uff0c\u6b64\u5904\u7684obj\u662f\u521a\u624d\u53cd\u5c04\u4ee3\u7801\u5f97\u5230\u7684Object\u5bf9\u8c61  \n            setter.invoke(obj, paramBean); \n <\/pre>\n\n\n\n<p>\u662f\u4e0d\u662f\u5f88\u719f\u6089\uff0c\u867d\u7136\u662f\u4f2a\u4ee3\u7801\uff0c\u4f46\u662f\u548c\u6211\u4eec\u4e0a\u7bc7\u8bb2\u7684\u53cd\u5c04\u673a\u5236\u7684\u4f7f\u7528\u662f\u76f8\u540c\u7684\uff0c\u73b0\u5728\u77e5\u9053\u6211\u4eec\u7684\u53cd\u5c04\u673a\u5236\u7528\u5728\u54ea\u4e86\u5427\uff0c\u6ca1\u9519\u5c31\u662f\u6211\u4eec\u7ecf\u5e38\u63d0\u5230\u7684Java 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