{"id":50856,"date":"2025-08-10T13:04:16","date_gmt":"2025-08-10T05:04:16","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/50856.html"},"modified":"2025-08-10T13:04:16","modified_gmt":"2025-08-10T05:04:16","slug":"java-%e6%b3%9b%e5%9e%8b%ef%bc%9a%e4%bb%8e-%e8%af%ad%e6%b3%95%e7%b3%96-%e5%88%b0%e7%b1%bb%e5%9e%8b%e6%93%a6%e9%99%a4%e7%9a%84%e6%9c%ac%e8%b4%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/50856.html","title":{"rendered":"Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"%E4%B8%80%E3%80%81%E6%B3%9B%E5%9E%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E4%BD%BF%E7%94%A8%EF%BC%9A%E8%AE%A9%E4%BB%A3%E7%A0%81%E6%9B%B4%E5%85%B7%E9%80%9A%E7%94%A8%E6%80%A7%E4%B8%8E%E5%AE%89%E5%85%A8%E6%80%A7%E2%80%8B-toc\" style=\"margin-left:0px\">\u4e00\u3001\u6cdb\u578b\u7684\u57fa\u672c\u4f7f\u7528&#xff1a;\u8ba9\u4ee3\u7801\u66f4\u5177\u901a\u7528\u6027\u4e0e\u5b89\u5168\u6027\u200b<\/p>\n<p id=\"1.%20%E6%B3%9B%E5%9E%8B%E7%B1%BB%EF%BC%9A%E5%A6%82%20List%E7%9A%84%E7%81%B5%E6%B4%BB%E5%BA%94%E7%94%A8%E2%80%8B-toc\" style=\"margin-left:40px\">1. \u6cdb\u578b\u7c7b&#xff1a;\u5982 List\u7684\u7075\u6d3b\u5e94\u7528\u200b<\/p>\n<p id=\"2.%20%E6%B3%9B%E5%9E%8B%E6%96%B9%E6%B3%95%EF%BC%9Apublic%20void%20func%20(E%20e)%20%E7%9A%84%E5%A6%99%E7%94%A8%E2%80%8B-toc\" style=\"margin-left:40px\">2. \u6cdb\u578b\u65b9\u6cd5&#xff1a;public void func (E e) \u7684\u5999\u7528\u200b<\/p>\n<p id=\"3.%20%E9%80%9A%E9%85%8D%E7%AC%A6%EF%BC%9A%3C%3F%20extends%20T%3E%20%E4%B8%8E%20%3C%3F%20super%20T%20%3E%20%E7%9A%84%E5%8C%BA%E5%88%AB%E2%80%8B-toc\" style=\"margin-left:40px\">3. \u901a\u914d\u7b26&#xff1a;<br \/>\n   \u4e0e<br \/>\n   \u7684\u533a\u522b\u200b<\/p>\n<p id=\"%E4%BA%8C%E3%80%81%E5%BA%95%E5%B1%82%E5%AE%9E%E7%8E%B0%EF%BC%9A%E6%B3%9B%E5%9E%8B%E6%98%AF%20%E2%80%9C%E7%BC%96%E8%AF%91%E6%9C%9F%E8%AF%AD%E6%B3%95%E7%B3%96%E2%80%9D%20%E5%8F%8A%E7%B1%BB%E5%9E%8B%E6%93%A6%E9%99%A4%E7%9A%84%E5%BD%B1%E5%93%8D%E2%80%8B-toc\" style=\"margin-left:0px\">\u4e8c\u3001\u5e95\u5c42\u5b9e\u73b0&#xff1a;\u6cdb\u578b\u662f \u201c\u7f16\u8bd1\u671f\u8bed\u6cd5\u7cd6\u201d \u53ca\u7c7b\u578b\u64e6\u9664\u7684\u5f71\u54cd\u200b<\/p>\n<p id=\"1.%20%E4%B8%BA%E4%BB%80%E4%B9%88%E8%AF%B4%E6%B3%9B%E5%9E%8B%E6%98%AF%20%E2%80%9C%E7%BC%96%E8%AF%91%E6%9C%9F%E8%AF%AD%E6%B3%95%E7%B3%96%E2%80%9D%EF%BC%9F%E2%80%8B-toc\" style=\"margin-left:40px\">1. \u4e3a\u4ec0\u4e48\u8bf4\u6cdb\u578b\u662f \u201c\u7f16\u8bd1\u671f\u8bed\u6cd5\u7cd6\u201d&#xff1f;\u200b<\/p>\n<p id=\"2.%20%E7%B1%BB%E5%9E%8B%E6%93%A6%E9%99%A4%EF%BC%88T%20%E8%A2%AB%E6%93%A6%E9%99%A4%E4%B8%BA%20Object%EF%BC%89%E4%BC%9A%E5%AF%BC%E8%87%B4%E5%93%AA%E4%BA%9B%E9%97%AE%E9%A2%98%EF%BC%9F%E2%80%8B-toc\" style=\"margin-left:40px\">2. \u7c7b\u578b\u64e6\u9664&#xff08;T \u88ab\u64e6\u9664\u4e3a Object&#xff09;\u4f1a\u5bfc\u81f4\u54ea\u4e9b\u95ee\u9898&#xff1f;\u200b<\/p>\n<p id=\"%E4%B8%89%E3%80%81%E8%BF%9B%E9%98%B6%E5%9C%BA%E6%99%AF%EF%BC%9A%E6%B3%9B%E5%9E%8B%E7%9A%84%E9%AB%98%E7%BA%A7%E5%BA%94%E7%94%A8%E2%80%8B-toc\" style=\"margin-left:0px\">\u4e09\u3001\u8fdb\u9636\u573a\u666f&#xff1a;\u6cdb\u578b\u7684\u9ad8\u7ea7\u5e94\u7528\u200b<\/p>\n<p id=\"1.%20%E6%B3%9B%E5%9E%8B%E4%B8%8E%E5%8F%8D%E5%B0%84%E7%9A%84%E7%BB%93%E5%90%88%EF%BC%9A%E5%A6%82%E4%BD%95%E9%80%9A%E8%BF%87%E5%8F%8D%E5%B0%84%E8%8E%B7%E5%8F%96%E6%B3%9B%E5%9E%8B%E7%9A%84%E5%AE%9E%E9%99%85%E7%B1%BB%E5%9E%8B%E2%80%8B-toc\" style=\"margin-left:40px\">1. \u6cdb\u578b\u4e0e\u53cd\u5c04\u7684\u7ed3\u5408&#xff1a;\u5982\u4f55\u901a\u8fc7\u53cd\u5c04\u83b7\u53d6\u6cdb\u578b\u7684\u5b9e\u9645\u7c7b\u578b\u200b<\/p>\n<p id=\"2.%20%E6%B3%9B%E5%9E%8B%E5%9C%A8%E6%A1%86%E6%9E%B6%E4%B8%AD%E7%9A%84%E5%BA%94%E7%94%A8%EF%BC%9A%E5%A6%82%20Spring%20%E7%9A%84%20ParameterizedTypeReference%E2%80%8B-toc\" style=\"margin-left:40px\">2. \u6cdb\u578b\u5728\u6846\u67b6\u4e2d\u7684\u5e94\u7528&#xff1a;\u5982 Spring \u7684 ParameterizedTypeReference\u200b<\/p>\n<p id=\"%E7%BB%93%E8%AF%AD%E2%80%8B-toc\" style=\"margin-left:0px\">\u7ed3\u8bed\u200b<\/p>\n<hr id=\"hr-toc\" \/>\n<p>\u5728 Java \u7f16\u7a0b\u7684\u4e16\u754c\u91cc&#xff0c;\u6cdb\u578b\u662f\u4e00\u4e2a\u65e2\u719f\u6089\u53c8\u5bb9\u6613\u88ab\u5ffd\u7565\u6df1\u5c42\u539f\u7406\u7684\u7279\u6027\u3002\u5b83\u50cf\u4e00\u5c42\u4f18\u96c5\u7684\u5305\u88c5&#xff0c;\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\u3001\u66f4\u5b89\u5168&#xff0c;\u5374\u53c8\u5728\u5e95\u5c42\u85cf\u7740\u4e0d\u4e3a\u4eba\u77e5\u7684 \u201c\u79d8\u5bc6\u201d\u3002\u4eca\u5929&#xff0c;\u6211\u4eec\u5c31\u4e00\u540c\u63ed\u5f00 Java \u6cdb\u578b\u7684\u795e\u79d8\u9762\u7eb1&#xff0c;\u4ece\u57fa\u672c\u4f7f\u7528\u5230\u5e95\u5c42\u5b9e\u73b0&#xff0c;\u518d\u5230\u8fdb\u9636\u573a\u666f&#xff0c;\u5168\u65b9\u4f4d\u63a2\u7d22\u5b83\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28\u3002<\/p>\n<h2 id=\"%E4%B8%80%E3%80%81%E6%B3%9B%E5%9E%8B%E7%9A%84%E5%9F%BA%E6%9C%AC%E4%BD%BF%E7%94%A8%EF%BC%9A%E8%AE%A9%E4%BB%A3%E7%A0%81%E6%9B%B4%E5%85%B7%E9%80%9A%E7%94%A8%E6%80%A7%E4%B8%8E%E5%AE%89%E5%85%A8%E6%80%A7%E2%80%8B\">\u4e00\u3001\u6cdb\u578b\u7684\u57fa\u672c\u4f7f\u7528&#xff1a;\u8ba9\u4ee3\u7801\u66f4\u5177\u901a\u7528\u6027\u4e0e\u5b89\u5168\u6027\u200b<\/h2>\n<p>\u6cdb\u578b\u7684\u51fa\u73b0&#xff0c;\u4e3b\u8981\u662f\u4e3a\u4e86\u89e3\u51b3\u4ee3\u7801\u590d\u7528\u548c\u7c7b\u578b\u5b89\u5168\u7684\u95ee\u9898\u3002\u5b83\u5141\u8bb8\u6211\u4eec\u5728\u5b9a\u4e49\u7c7b\u3001\u65b9\u6cd5\u65f6\u4f7f\u7528\u7c7b\u578b\u53c2\u6570&#xff0c;\u8ba9\u8fd9\u4e9b\u7c7b\u548c\u65b9\u6cd5\u80fd\u591f\u9002\u7528\u4e8e\u591a\u79cd\u6570\u636e\u7c7b\u578b&#xff0c;\u540c\u65f6\u5728\u7f16\u8bd1\u671f\u5c31\u5bf9\u7c7b\u578b\u8fdb\u884c\u68c0\u67e5&#xff0c;\u907f\u514d\u4e86\u8fd0\u884c\u65f6\u7684\u7c7b\u578b\u8f6c\u6362\u9519\u8bef\u3002\u200b<\/p>\n<h3 id=\"1.%20%E6%B3%9B%E5%9E%8B%E7%B1%BB%EF%BC%9A%E5%A6%82%20List%E7%9A%84%E7%81%B5%E6%B4%BB%E5%BA%94%E7%94%A8%E2%80%8B\">1. \u6cdb\u578b\u7c7b&#xff1a;\u5982 List\u7684\u7075\u6d3b\u5e94\u7528\u200b<\/h3>\n<p>\u6cdb\u578b\u7c7b\u662f\u5728\u7c7b\u7684\u5b9a\u4e49\u4e2d\u5f15\u5165\u7c7b\u578b\u53c2\u6570\u7684\u7c7b\u3002\u4ee5\u6211\u4eec\u5e38\u7528\u7684List&lt;T&gt;\u4e3a\u4f8b&#xff0c;T\u5c31\u662f\u7c7b\u578b\u53c2\u6570&#xff0c;\u5b83\u5c31\u50cf\u4e00\u4e2a\u5360\u4f4d\u7b26&#xff0c;\u53ef\u4ee5\u5728\u521b\u5efa\u7c7b\u7684\u5b9e\u4f8b\u65f6\u88ab\u5177\u4f53\u7684\u7c7b\u578b\u6240\u66ff\u4ee3\u3002\u200b<\/p>\n<p>\u5f53\u6211\u4eec\u521b\u5efaList&lt;String&gt;\u7684\u5bf9\u8c61\u65f6&#xff0c;\u5c31\u6307\u5b9a\u4e86\u8fd9\u4e2a\u5217\u8868\u53ea\u80fd\u5b58\u50a8\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u6570\u636e&#xff1b;\u521b\u5efaList&lt;Integer&gt;\u7684\u5bf9\u8c61\u65f6&#xff0c;\u5c31\u53ea\u80fd\u5b58\u50a8\u6574\u6570\u7c7b\u578b\u7684\u6570\u636e\u3002\u8fd9\u6837\u4e00\u6765&#xff0c;\u6211\u4eec\u5728\u5411\u5217\u8868\u4e2d\u6dfb\u52a0\u5143\u7d20\u65f6&#xff0c;\u7f16\u8bd1\u5668\u4f1a\u81ea\u52a8\u68c0\u67e5\u5143\u7d20\u7684\u7c7b\u578b\u662f\u5426\u5339\u914d&#xff0c;\u4ece\u800c\u907f\u514d\u4e86\u5c06\u9519\u8bef\u7c7b\u578b\u7684\u5143\u7d20\u6dfb\u52a0\u8fdb\u53bb\u3002\u200b<\/p>\n<p>\u4f8b\u5982&#xff0c;\u4e0b\u9762\u7684\u4ee3\u7801\u5728\u7f16\u8bd1\u65f6\u5c31\u4f1a\u62a5\u9519&#xff1a;<\/p>\n<p>List&lt;String&gt; stringList &#061; new ArrayList&lt;&gt;();<br \/>\nstringList.add(123); \/\/ \u7f16\u8bd1\u9519\u8bef&#xff0c;\u4e0d\u80fd\u6dfb\u52a0\u6574\u6570\u7c7b\u578b <\/p>\n<h3 id=\"2.%20%E6%B3%9B%E5%9E%8B%E6%96%B9%E6%B3%95%EF%BC%9Apublic%20void%20func%20(E%20e)%20%E7%9A%84%E5%A6%99%E7%94%A8%E2%80%8B\">2. \u6cdb\u578b\u65b9\u6cd5&#xff1a;public void func (E e) \u7684\u5999\u7528\u200b<\/h3>\n<p>\u6cdb\u578b\u65b9\u6cd5\u662f\u5728\u65b9\u6cd5\u5b9a\u4e49\u4e2d\u58f0\u660e\u7c7b\u578b\u53c2\u6570\u7684\u65b9\u6cd5&#xff0c;\u5b83\u53ef\u4ee5\u72ec\u7acb\u4e8e\u6cdb\u578b\u7c7b\u5b58\u5728\u3002\u5176\u8bed\u6cd5\u683c\u5f0f\u4e3apublic &lt;E&gt; void func(E e)&#xff0c;\u5176\u4e2d&lt;E&gt;\u662f\u7c7b\u578b\u53c2\u6570\u58f0\u660e&#xff0c;E\u662f\u7c7b\u578b\u53c2\u6570\u3002\u200b<\/p>\n<p>\u6cdb\u578b\u65b9\u6cd5\u7684\u597d\u5904\u5728\u4e8e&#xff0c;\u5b83\u53ef\u4ee5\u6839\u636e\u4f20\u5165\u7684\u53c2\u6570\u7c7b\u578b\u81ea\u52a8\u63a8\u65ad\u51fa\u7c7b\u578b\u53c2\u6570\u7684\u5177\u4f53\u7c7b\u578b&#xff0c;\u4ece\u800c\u5b9e\u73b0\u66f4\u7075\u6d3b\u7684\u65b9\u6cd5\u8c03\u7528\u3002\u200b<\/p>\n<p>\u6bd4\u5982&#xff0c;\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u6cdb\u578b\u65b9\u6cd5\u6765\u6253\u5370\u4efb\u610f\u7c7b\u578b\u7684\u6570\u636e&#xff1a;<\/p>\n<p>public &lt;E&gt; void printData(E data) {<br \/>\n    System.out.println(data);<br \/>\n} <\/p>\n<p>\u5f53\u6211\u4eec\u8c03\u7528\u8fd9\u4e2a\u65b9\u6cd5\u65f6&#xff0c;\u4f20\u5165\u5b57\u7b26\u4e32&#xff0c;\u5b83\u5c31\u4f1a\u6253\u5370\u5b57\u7b26\u4e32&#xff1b;\u4f20\u5165\u6574\u6570&#xff0c;\u5c31\u4f1a\u6253\u5370\u6574\u6570&#xff0c;\u65e0\u9700\u4e3a\u4e0d\u540c\u7c7b\u578b\u5355\u72ec\u5b9a\u4e49\u65b9\u6cd5\u3002\u200b<\/p>\n<h3 id=\"3.%20%E9%80%9A%E9%85%8D%E7%AC%A6%EF%BC%9A%3C%3F%20extends%20T%3E%20%E4%B8%8E%20%3C%3F%20super%20T%20%3E%20%E7%9A%84%E5%8C%BA%E5%88%AB%E2%80%8B\">3. \u901a\u914d\u7b26&#xff1a;&lt;? extends T&gt; \u4e0e &lt;? super T &gt; \u7684\u533a\u522b\u200b<\/h3>\n<p>\u901a\u914d\u7b26\u662f\u6cdb\u578b\u4e2d\u7528\u4e8e\u9650\u5236\u7c7b\u578b\u8303\u56f4\u7684\u7279\u6b8a\u7b26\u53f7&#xff0c;\u5176\u4e2d&lt;? extends T&gt;\u548c&lt;? super T&gt;\u662f\u4e24\u79cd\u5e38\u89c1\u7684\u901a\u914d\u7b26\u5f62\u5f0f\u3002\u200b<\/p>\n<p>&lt;? extends T&gt;\u8868\u793a\u7c7b\u578b\u53c2\u6570\u53ef\u4ee5\u662fT\u7c7b\u578b\u6216T\u7684\u5b50\u7c7b&#xff0c;\u5b83\u9650\u5b9a\u4e86\u5143\u7d20\u7684\u4e0a\u9650\u3002\u4f8b\u5982&#xff0c;List&lt;? extends Number&gt;\u53ef\u4ee5\u63a5\u6536List&lt;Integer&gt;\u3001List&lt;Double&gt;\u7b49&#xff0c;\u56e0\u4e3aInteger\u548cDouble\u90fd\u662fNumber\u7684\u5b50\u7c7b\u3002\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f&#xff0c;\u5bf9\u4e8e\u4f7f\u7528&lt;? extends T&gt;\u7684\u96c6\u5408&#xff0c;\u6211\u4eec\u4e0d\u80fd\u5411\u5176\u4e2d\u6dfb\u52a0\u5143\u7d20&#xff08;\u9664\u4e86null&#xff09;&#xff0c;\u56e0\u4e3a\u6211\u4eec\u4e0d\u786e\u5b9a\u96c6\u5408\u5177\u4f53\u5b58\u50a8\u7684\u662f\u54ea\u4e2a\u5b50\u7c7b\u7684\u5bf9\u8c61\u3002\u200b<\/p>\n<p>&lt;? super T&gt;\u5219\u8868\u793a\u7c7b\u578b\u53c2\u6570\u53ef\u4ee5\u662fT\u7c7b\u578b\u6216T\u7684\u7236\u7c7b&#xff0c;\u5b83\u9650\u5b9a\u4e86\u5143\u7d20\u7684\u4e0b\u9650\u3002\u4f8b\u5982&#xff0c;List&lt;? super Integer&gt;\u53ef\u4ee5\u63a5\u6536List&lt;Number&gt;\u3001List&lt;Object&gt;\u7b49&#xff0c;\u56e0\u4e3aNumber\u548cObject\u90fd\u662fInteger\u7684\u7236\u7c7b\u3002\u5bf9\u4e8e\u4f7f\u7528&lt;? super T&gt;\u7684\u96c6\u5408&#xff0c;\u6211\u4eec\u53ef\u4ee5\u5411\u5176\u4e2d\u6dfb\u52a0T\u7c7b\u578b\u6216T\u7684\u5b50\u7c7b\u7684\u5143\u7d20&#xff0c;\u56e0\u4e3a\u7236\u7c7b\u96c6\u5408\u53ef\u4ee5\u5bb9\u7eb3\u5b50\u7c7b\u5bf9\u8c61\u3002\u200b<\/p>\n<p>\u4e3e\u4e2a\u4f8b\u5b50&#xff0c;\u5047\u8bbe\u6709\u4e00\u4e2a\u65b9\u6cd5\u9700\u8981\u5904\u7406\u4e00\u4e2a\u5b58\u50a8\u6570\u5b57\u7684\u5217\u8868&#xff0c;\u5e76\u4e14\u53ea\u9700\u8981\u8bfb\u53d6\u5176\u4e2d\u7684\u5143\u7d20&#xff0c;\u90a3\u4e48\u4f7f\u7528&lt;? extends Number&gt;\u5c31\u6bd4\u8f83\u5408\u9002&#xff1b;\u5982\u679c\u8fd9\u4e2a\u65b9\u6cd5\u9700\u8981\u5411\u5217\u8868\u4e2d\u6dfb\u52a0\u6574\u6570&#xff0c;\u90a3\u4e48\u4f7f\u7528&lt;? super Integer&gt;\u66f4\u5408\u9002\u3002\u200b<\/p>\n<h2 id=\"%E4%BA%8C%E3%80%81%E5%BA%95%E5%B1%82%E5%AE%9E%E7%8E%B0%EF%BC%9A%E6%B3%9B%E5%9E%8B%E6%98%AF%20%E2%80%9C%E7%BC%96%E8%AF%91%E6%9C%9F%E8%AF%AD%E6%B3%95%E7%B3%96%E2%80%9D%20%E5%8F%8A%E7%B1%BB%E5%9E%8B%E6%93%A6%E9%99%A4%E7%9A%84%E5%BD%B1%E5%93%8D%E2%80%8B\">\u4e8c\u3001\u5e95\u5c42\u5b9e\u73b0&#xff1a;\u6cdb\u578b\u662f \u201c\u7f16\u8bd1\u671f\u8bed\u6cd5\u7cd6\u201d \u53ca\u7c7b\u578b\u64e6\u9664\u7684\u5f71\u54cd\u200b<\/h2>\n<h3 id=\"1.%20%E4%B8%BA%E4%BB%80%E4%B9%88%E8%AF%B4%E6%B3%9B%E5%9E%8B%E6%98%AF%20%E2%80%9C%E7%BC%96%E8%AF%91%E6%9C%9F%E8%AF%AD%E6%B3%95%E7%B3%96%E2%80%9D%EF%BC%9F%E2%80%8B\">1. \u4e3a\u4ec0\u4e48\u8bf4\u6cdb\u578b\u662f \u201c\u7f16\u8bd1\u671f\u8bed\u6cd5\u7cd6\u201d&#xff1f;\u200b<\/h3>\n<p>\u5f88\u591a\u4eba\u8bf4\u6cdb\u578b\u662f \u201c\u7f16\u8bd1\u671f\u8bed\u6cd5\u7cd6\u201d&#xff0c;\u8fd9\u662f\u56e0\u4e3a\u6cdb\u578b\u5728 Java \u7684\u8fd0\u884c\u65f6\u5e76\u4e0d\u5b58\u5728\u3002Java \u7f16\u8bd1\u5668\u5728\u7f16\u8bd1\u5e26\u6709\u6cdb\u578b\u7684\u4ee3\u7801\u65f6&#xff0c;\u4f1a\u8fdb\u884c\u7c7b\u578b\u64e6\u9664\u64cd\u4f5c&#xff0c;\u5c06\u6cdb\u578b\u7c7b\u578b\u53c2\u6570\u66ff\u6362\u4e3a\u5176\u4e0a\u9650&#xff08;\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u4e0a\u9650&#xff0c;\u5219\u66ff\u6362\u4e3aObject&#xff09;&#xff0c;\u7136\u540e\u751f\u6210\u666e\u901a\u7684\u975e\u6cdb\u578b\u4ee3\u7801\u3002\u200b<\/p>\n<p>\u8fd9\u5c31\u610f\u5473\u7740&#xff0c;\u5728\u8fd0\u884c\u65f6&#xff0c;JVM \u5e76\u4e0d\u77e5\u9053\u6cdb\u578b\u7684\u5177\u4f53\u7c7b\u578b\u4fe1\u606f&#xff0c;\u5b83\u53ea\u770b\u5230\u7ecf\u8fc7\u7c7b\u578b\u64e6\u9664\u540e\u7684\u666e\u901a\u7c7b\u548c\u65b9\u6cd5\u3002\u6cdb\u578b\u53ea\u662f\u5728\u7f16\u8bd1\u9636\u6bb5\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u7c7b\u578b\u68c0\u67e5\u7684\u4fbf\u5229&#xff0c;\u8ba9\u6211\u4eec\u7684\u4ee3\u7801\u5728\u7f16\u8bd1\u65f6\u5c31\u80fd\u53d1\u73b0\u4e00\u4e9b\u7c7b\u578b\u9519\u8bef&#xff0c;\u800c\u4e0d\u662f\u5728\u8fd0\u884c\u65f6\u624d\u629b\u51fa\u5f02\u5e38&#xff0c;\u5c31\u50cf\u4e00\u5c42 \u201c\u8bed\u6cd5\u7cd6\u201d&#xff0c;\u8ba9\u4ee3\u7801\u5199\u8d77\u6765\u66f4\u751c&#xff0c;\u4f46\u5e95\u5c42\u7684\u5b9e\u73b0\u5e76\u6ca1\u6709\u672c\u8d28\u7684\u6539\u53d8\u3002\u200b<\/p>\n<h3 id=\"2.%20%E7%B1%BB%E5%9E%8B%E6%93%A6%E9%99%A4%EF%BC%88T%20%E8%A2%AB%E6%93%A6%E9%99%A4%E4%B8%BA%20Object%EF%BC%89%E4%BC%9A%E5%AF%BC%E8%87%B4%E5%93%AA%E4%BA%9B%E9%97%AE%E9%A2%98%EF%BC%9F%E2%80%8B\">2. \u7c7b\u578b\u64e6\u9664&#xff08;T \u88ab\u64e6\u9664\u4e3a Object&#xff09;\u4f1a\u5bfc\u81f4\u54ea\u4e9b\u95ee\u9898&#xff1f;\u200b<\/h3>\n<p>\u7c7b\u578b\u64e6\u9664\u867d\u7136\u5b9e\u73b0\u4e86\u6cdb\u578b\u7684\u8868\u8c61&#xff0c;\u4f46\u4e5f\u5e26\u6765\u4e86\u4e00\u4e9b\u95ee\u9898\u3002\u200b<\/p>\n<p>\u5176\u4e2d\u4e00\u4e2a\u5178\u578b\u7684\u95ee\u9898\u662f\u4e0d\u80fd\u521b\u5efaT[]\u6570\u7ec4\u3002\u56e0\u4e3a\u5728\u7f16\u8bd1\u65f6&#xff0c;T\u4f1a\u88ab\u64e6\u9664\u4e3aObject&#xff0c;\u5982\u679c\u5141\u8bb8\u521b\u5efaT[]\u6570\u7ec4&#xff0c;\u90a3\u4e48\u5728\u8fd0\u884c\u65f6\u8fd9\u4e2a\u6570\u7ec4\u7684\u5b9e\u9645\u7c7b\u578b\u5c31\u662fObject[]&#xff0c;\u5f53\u6211\u4eec\u5c06\u5176\u8f6c\u6362\u4e3a\u5177\u4f53\u7c7b\u578b\u7684\u6570\u7ec4\u65f6&#xff0c;\u5c31\u53ef\u80fd\u4f1a\u51fa\u73b0ClassCastException\u3002\u200b<\/p>\n<p>\u4f8b\u5982&#xff0c;\u4e0b\u9762\u7684\u4ee3\u7801\u662f\u4e0d\u88ab\u5141\u8bb8\u7684&#xff1a;<\/p>\n<p>public class GenericArray&lt;T&gt; {<br \/>\n    public T[] createArray() {<br \/>\n        return new T[10]; \/\/ \u7f16\u8bd1\u9519\u8bef&#xff0c;\u4e0d\u80fd\u521b\u5efaT[]\u6570\u7ec4<br \/>\n    }<br \/>\n} <\/p>\n<p>\u53e6\u5916&#xff0c;\u7c7b\u578b\u64e6\u9664\u8fd8\u4f1a\u5bfc\u81f4\u6cdb\u578b\u7c7b\u578b\u4e0d\u80fd\u7528\u4e8e instanceof \u64cd\u4f5c\u7b26&#xff0c;\u56e0\u4e3a\u5728\u8fd0\u884c\u65f6\u6cdb\u578b\u7c7b\u578b\u4fe1\u606f\u5df2\u7ecf\u88ab\u64e6\u9664&#xff0c;\u65e0\u6cd5\u5224\u65ad\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u5c5e\u4e8e\u67d0\u4e2a\u6cdb\u578b\u7c7b\u578b\u3002\u200b<\/p>\n<p>\u540c\u65f6&#xff0c;\u9759\u6001\u65b9\u6cd5\u4e2d\u4e0d\u80fd\u4f7f\u7528\u6cdb\u578b\u7c7b\u7684\u7c7b\u578b\u53c2\u6570&#xff0c;\u56e0\u4e3a\u9759\u6001\u6210\u5458\u5c5e\u4e8e\u7c7b&#xff0c;\u800c\u6cdb\u578b\u7c7b\u7684\u7c7b\u578b\u53c2\u6570\u662f\u4e0e\u5b9e\u4f8b\u76f8\u5173\u7684&#xff0c;\u5728\u9759\u6001\u65b9\u6cd5\u4e2d\u65e0\u6cd5\u786e\u5b9a\u3002\u200b<\/p>\n<h2 id=\"%E4%B8%89%E3%80%81%E8%BF%9B%E9%98%B6%E5%9C%BA%E6%99%AF%EF%BC%9A%E6%B3%9B%E5%9E%8B%E7%9A%84%E9%AB%98%E7%BA%A7%E5%BA%94%E7%94%A8%E2%80%8B\">\u4e09\u3001\u8fdb\u9636\u573a\u666f&#xff1a;\u6cdb\u578b\u7684\u9ad8\u7ea7\u5e94\u7528\u200b<\/h2>\n<h3 id=\"1.%20%E6%B3%9B%E5%9E%8B%E4%B8%8E%E5%8F%8D%E5%B0%84%E7%9A%84%E7%BB%93%E5%90%88%EF%BC%9A%E5%A6%82%E4%BD%95%E9%80%9A%E8%BF%87%E5%8F%8D%E5%B0%84%E8%8E%B7%E5%8F%96%E6%B3%9B%E5%9E%8B%E7%9A%84%E5%AE%9E%E9%99%85%E7%B1%BB%E5%9E%8B%E2%80%8B\">1. \u6cdb\u578b\u4e0e\u53cd\u5c04\u7684\u7ed3\u5408&#xff1a;\u5982\u4f55\u901a\u8fc7\u53cd\u5c04\u83b7\u53d6\u6cdb\u578b\u7684\u5b9e\u9645\u7c7b\u578b\u200b<\/h3>\n<p>\u867d\u7136\u6cdb\u578b\u5728\u8fd0\u884c\u65f6\u4f1a\u88ab\u7c7b\u578b\u64e6\u9664&#xff0c;\u4f46\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b&#xff0c;\u6cdb\u578b\u7684\u7c7b\u578b\u4fe1\u606f\u4f1a\u88ab\u4fdd\u7559\u5728\u5b57\u8282\u7801\u4e2d&#xff0c;\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u53cd\u5c04\u6765\u83b7\u53d6\u8fd9\u4e9b\u4fe1\u606f\u3002\u200b<\/p>\n<p>\u4f8b\u5982&#xff0c;\u5bf9\u4e8e\u4e00\u4e2a\u7ee7\u627f\u4e86\u6cdb\u578b\u7c7b\u7684\u5b50\u7c7b&#xff0c;\u6216\u8005\u4e00\u4e2a\u5b9e\u73b0\u4e86\u6cdb\u578b\u63a5\u53e3\u7684\u7c7b&#xff0c;\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7getGenericSuperclass()\u6216getGenericInterfaces()\u65b9\u6cd5\u83b7\u53d6\u5e26\u6709\u6cdb\u578b\u4fe1\u606f\u7684\u7236\u7c7b\u6216\u63a5\u53e3&#xff0c;\u7136\u540e\u518d\u901a\u8fc7ParameterizedType\u63a5\u53e3\u6765\u83b7\u53d6\u5b9e\u9645\u7684\u7c7b\u578b\u53c2\u6570\u3002\u200b<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u901a\u8fc7\u53cd\u5c04\u83b7\u53d6\u6cdb\u578b\u5b9e\u9645\u7c7b\u578b\u7684\u4f8b\u5b50&#xff1a;<\/p>\n<p>public class GenericReflectionExample {<br \/>\n    public static void main(String[] args) {<br \/>\n        Class&lt;?&gt; clazz &#061; MyList.class;<br \/>\n        Type genericSuperclass &#061; clazz.getGenericSuperclass();<br \/>\n        if (genericSuperclass instanceof ParameterizedType) {<br \/>\n            ParameterizedType parameterizedType &#061; (ParameterizedType) genericSuperclass;<br \/>\n            Type[] actualTypeArguments &#061; parameterizedType.getActualTypeArguments();<br \/>\n            System.out.println(actualTypeArguments[0]); \/\/ \u8f93\u51faclass java.lang.String<br \/>\n        }<br \/>\n    }<\/p>\n<p>    static class MyList extends ArrayList&lt;String&gt; {}<br \/>\n} <\/p>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d&#xff0c;MyList\u7ee7\u627f\u4e86ArrayList&lt;String&gt;&#xff0c;\u901a\u8fc7\u53cd\u5c04\u6211\u4eec\u53ef\u4ee5\u83b7\u53d6\u5230ArrayList\u7684\u5b9e\u9645\u7c7b\u578b\u53c2\u6570\u662fString\u3002\u200b<\/p>\n<h3 id=\"2.%20%E6%B3%9B%E5%9E%8B%E5%9C%A8%E6%A1%86%E6%9E%B6%E4%B8%AD%E7%9A%84%E5%BA%94%E7%94%A8%EF%BC%9A%E5%A6%82%20Spring%20%E7%9A%84%20ParameterizedTypeReference%E2%80%8B\">2. \u6cdb\u578b\u5728\u6846\u67b6\u4e2d\u7684\u5e94\u7528&#xff1a;\u5982 Spring \u7684 ParameterizedTypeReference\u200b<\/h3>\n<p>\u6cdb\u578b\u5728\u5f88\u591a\u6846\u67b6\u4e2d\u90fd\u6709\u5e7f\u6cdb\u7684\u5e94\u7528&#xff0c;Spring \u6846\u67b6\u4e2d\u7684ParameterizedTypeReference\u5c31\u662f\u4e00\u4e2a\u5178\u578b\u7684\u4f8b\u5b50\u3002\u200b<\/p>\n<p>\u5728\u8fdb\u884c RESTful API \u8c03\u7528\u65f6&#xff0c;\u6709\u65f6\u6211\u4eec\u9700\u8981\u83b7\u53d6\u6cdb\u578b\u7c7b\u578b\u7684\u8fd4\u56de\u7ed3\u679c&#xff0c;\u4f8b\u5982List&lt;User&gt;\u3002\u7531\u4e8e\u7c7b\u578b\u64e6\u9664&#xff0c;\u76f4\u63a5\u4f7f\u7528List.class\u65e0\u6cd5\u83b7\u53d6\u5230List\u4e2d\u5143\u7d20\u7684\u5177\u4f53\u7c7b\u578b&#xff0c;\u800cParameterizedTypeReference\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002\u200b<\/p>\n<p>ParameterizedTypeReference\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a\u533f\u540d\u5b50\u7c7b\u6765\u4fdd\u7559\u6cdb\u578b\u7c7b\u578b\u4fe1\u606f&#xff0c;\u4ece\u800c\u5728\u6846\u67b6\u5185\u90e8\u80fd\u591f\u6b63\u786e\u5730\u89e3\u6790\u51fa\u6cdb\u578b\u7684\u5b9e\u9645\u7c7b\u578b\u3002\u200b<\/p>\n<p>\u4f8b\u5982&#xff0c;\u5728 Spring \u7684RestTemplate\u4e2d&#xff0c;\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528&#xff1a;<\/p>\n<p>RestTemplate restTemplate &#061; new RestTemplate();<br \/>\nResponseEntity&lt;List&lt;User&gt;&gt; response &#061; restTemplate.exchange(<br \/>\n    &#034;http:\/\/example.com\/users&#034;,<br \/>\n    HttpMethod.GET,<br \/>\n    null,<br \/>\n    new ParameterizedTypeReference&lt;List&lt;User&gt;&gt;() {}<br \/>\n);<br \/>\nList&lt;User&gt; users &#061; response.getBody(); <\/p>\n<p>\u901a\u8fc7ParameterizedTypeReference&lt;List&lt;User&gt;&gt;()\u7684\u533f\u540d\u5b50\u7c7b&#xff0c;Spring \u80fd\u591f\u77e5\u9053\u6211\u4eec\u9700\u8981\u7684\u662fList&lt;User&gt;\u7c7b\u578b\u7684\u7ed3\u679c&#xff0c;\u5e76\u6b63\u786e\u5730\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\u3002\u200b<\/p>\n<h2 id=\"%E7%BB%93%E8%AF%AD%E2%80%8B\">\u7ed3\u8bed\u200b<\/h2>\n<p>Java \u6cdb\u578b\u4ece\u8868\u9762\u4e0a\u7684\u8bed\u6cd5\u7cd6&#xff0c;\u5230\u5e95\u5c42\u7684\u7c7b\u578b\u64e6\u9664&#xff0c;\u518d\u5230\u4e0e\u53cd\u5c04\u3001\u6846\u67b6\u7684\u7ed3\u5408&#xff0c;\u5c55\u73b0\u51fa\u4e86\u5b83\u5f3a\u5927\u800c\u590d\u6742\u7684\u4e00\u9762\u3002\u7406\u89e3\u6cdb\u578b\u7684\u672c\u8d28&#xff0c;\u4e0d\u4ec5\u80fd\u8ba9\u6211\u4eec\u66f4\u597d\u5730\u4f7f\u7528\u5b83\u6765\u7f16\u5199\u5b89\u5168\u3001\u9ad8\u6548\u7684\u4ee3\u7801&#xff0c;\u8fd8\u80fd\u5e2e\u52a9\u6211\u4eec\u5728\u9047\u5230\u6cdb\u578b\u76f8\u5173\u7684\u95ee\u9898\u65f6&#xff0c;\u5feb\u901f\u627e\u5230\u89e3\u51b3\u65b9\u6848\u3002\u5e0c\u671b\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd&#xff0c;\u5927\u5bb6\u5bf9 Java \u6cdb\u578b\u6709\u4e86\u66f4\u6df1\u5165\u7684\u8ba4\u8bc6&#xff0c;\u5728\u4eca\u540e\u7684\u7f16\u7a0b\u4e4b\u8def\u4e0a\u80fd\u591f\u7075\u6d3b\u8fd0\u7528\u6cdb\u578b&#xff0c;\u8ba9\u4ee3\u7801\u66f4\u52a0\u4f18\u96c5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb535\u6b21\uff0c\u70b9\u8d5e12\u6b21\uff0c\u6536\u85cf8\u6b21\u3002\u5728 Java \u7f16\u7a0b\u7684\u4e16\u754c\u91cc\uff0c\u6cdb\u578b\u662f\u4e00\u4e2a\u65e2\u719f\u6089\u53c8\u5bb9\u6613\u88ab\u5ffd\u7565\u6df1\u5c42\u539f\u7406\u7684\u7279\u6027\u3002\u5b83\u50cf\u4e00\u5c42\u4f18\u96c5\u7684\u5305\u88c5\uff0c\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\u3001\u66f4\u5b89\u5168\uff0c\u5374\u53c8\u5728\u5e95\u5c42\u85cf\u7740\u4e0d\u4e3a\u4eba\u77e5\u7684 \u201c\u79d8\u5bc6\u201d\u3002\u4eca\u5929\uff0c\u6211\u4eec\u5c31\u4e00\u540c\u63ed\u5f00 Java \u6cdb\u578b\u7684\u795e\u79d8\u9762\u7eb1\uff0c\u4ece\u57fa\u672c\u4f7f\u7528\u5230\u5e95\u5c42\u5b9e\u73b0\uff0c\u518d\u5230\u8fdb\u9636\u573a\u666f\uff0c\u5168\u65b9\u4f4d\u63a2\u7d22\u5b83\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99,292,4968,190],"topic":[],"class_list":["post-50856","post","type-post","status-publish","format-standard","hentry","category-server","tag-java","tag-292","tag-4968","tag-190"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/50856.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb535\u6b21\uff0c\u70b9\u8d5e12\u6b21\uff0c\u6536\u85cf8\u6b21\u3002\u5728 Java \u7f16\u7a0b\u7684\u4e16\u754c\u91cc\uff0c\u6cdb\u578b\u662f\u4e00\u4e2a\u65e2\u719f\u6089\u53c8\u5bb9\u6613\u88ab\u5ffd\u7565\u6df1\u5c42\u539f\u7406\u7684\u7279\u6027\u3002\u5b83\u50cf\u4e00\u5c42\u4f18\u96c5\u7684\u5305\u88c5\uff0c\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\u3001\u66f4\u5b89\u5168\uff0c\u5374\u53c8\u5728\u5e95\u5c42\u85cf\u7740\u4e0d\u4e3a\u4eba\u77e5\u7684 \u201c\u79d8\u5bc6\u201d\u3002\u4eca\u5929\uff0c\u6211\u4eec\u5c31\u4e00\u540c\u63ed\u5f00 Java \u6cdb\u578b\u7684\u795e\u79d8\u9762\u7eb1\uff0c\u4ece\u57fa\u672c\u4f7f\u7528\u5230\u5e95\u5c42\u5b9e\u73b0\uff0c\u518d\u5230\u8fdb\u9636\u573a\u666f\uff0c\u5168\u65b9\u4f4d\u63a2\u7d22\u5b83\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/50856.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-10T05:04:16+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/50856.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/50856.html\",\"name\":\"Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2025-08-10T05:04:16+00:00\",\"dateModified\":\"2025-08-10T05:04:16+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/50856.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/50856.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/50856.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/50856.html","og_locale":"zh_CN","og_type":"article","og_title":"Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb535\u6b21\uff0c\u70b9\u8d5e12\u6b21\uff0c\u6536\u85cf8\u6b21\u3002\u5728 Java \u7f16\u7a0b\u7684\u4e16\u754c\u91cc\uff0c\u6cdb\u578b\u662f\u4e00\u4e2a\u65e2\u719f\u6089\u53c8\u5bb9\u6613\u88ab\u5ffd\u7565\u6df1\u5c42\u539f\u7406\u7684\u7279\u6027\u3002\u5b83\u50cf\u4e00\u5c42\u4f18\u96c5\u7684\u5305\u88c5\uff0c\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\u3001\u66f4\u5b89\u5168\uff0c\u5374\u53c8\u5728\u5e95\u5c42\u85cf\u7740\u4e0d\u4e3a\u4eba\u77e5\u7684 \u201c\u79d8\u5bc6\u201d\u3002\u4eca\u5929\uff0c\u6211\u4eec\u5c31\u4e00\u540c\u63ed\u5f00 Java \u6cdb\u578b\u7684\u795e\u79d8\u9762\u7eb1\uff0c\u4ece\u57fa\u672c\u4f7f\u7528\u5230\u5e95\u5c42\u5b9e\u73b0\uff0c\u518d\u5230\u8fdb\u9636\u573a\u666f\uff0c\u5168\u65b9\u4f4d\u63a2\u7d22\u5b83\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28\u3002","og_url":"https:\/\/www.wsisp.com\/helps\/50856.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2025-08-10T05:04:16+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"3 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/50856.html","url":"https:\/\/www.wsisp.com\/helps\/50856.html","name":"Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2025-08-10T05:04:16+00:00","dateModified":"2025-08-10T05:04:16+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/50856.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/50856.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/50856.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"Java \u6cdb\u578b\uff1a\u4ece \u201c\u8bed\u6cd5\u7cd6\u201d \u5230\u7c7b\u578b\u64e6\u9664\u7684\u672c\u8d28"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/50856","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=50856"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/50856\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=50856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=50856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=50856"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=50856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}