{"id":34865,"date":"2024-11-26T17:52:16","date_gmt":"2024-11-26T09:52:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34865\/"},"modified":"2024-11-26T17:52:16","modified_gmt":"2024-11-26T09:52:16","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e6%8a%8a%e7%b1%bb%e6%94%be%e5%9c%a8%e6%95%b0%e7%bb%84%e9%87%8c","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34865\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u628a\u7c7b\u653e\u5728\u6570\u7ec4\u91cc"},"content":{"rendered":"

\n \u5728 java \u4e2d\u5c06\u7c7b\u653e\u5165\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a1. \u58f0\u660e\u6cdb\u578b\u6570\u7ec4\uff1aclass[] classes = new class[]\uff1b2. \u901a\u8fc7\u7c7b\u540d\u653e\u5165\u7c7b\uff1aclasses[index] = class.forname(“…”);\n<\/p><\/blockquote>\n

\"java\u4e2d\u600e\u4e48\u628a\u7c7b\u653e\u5728\u6570\u7ec4\u91cc\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u5c06\u7c7b\u653e\u5165\u6570\u7ec4<\/strong><\/p>\n

\u7b80\u5355\u56de\u7b54\uff1a<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6cdb\u578b\u6570\u7ec4\u5c06\u7c7b\u653e\u5165\u6570\u7ec4\u4e2d\u3002<\/p>\n

\u8be6\u7ec6\u56de\u7b54\uff1a<\/strong><\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

Java \u63d0\u4f9b\u4e86\u6cdb\u578b\u6570\u7ec4\uff0c\u5141\u8bb8\u5c06\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\uff0c\u5305\u62ec\u7c7b\u3002<\/p>\n

\u6b65\u9aa4\uff1a<\/strong><\/p>\n

    \n
  1. \u58f0\u660e\u4e00\u4e2a\u6cdb\u578b\u6570\u7ec4\uff1a<\/li>\n<\/ol>\n
    Class<?>[] classes = new Class<?>[size];<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5176\u4e2d\uff1a<\/p>\n
      \n
    • Class>[] \u8868\u793a\u4e00\u4e2a\u7c7b\u5bf9\u8c61\u6570\u7ec4\u3002<\/li>\n
    • size \u662f\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/li>\n<\/ul>\n
        \n
      1. \u5c06\u7c7b\u653e\u5165\u6570\u7ec4\uff1a<\/li>\n<\/ol>\n
        classes[index] = Class.forName(\"com.example.MyClass\");<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u5176\u4e2d\uff1a<\/p>\n
          \n
        • index \u662f\u6570\u7ec4\u4e2d\u7684\u7d22\u5f15\u3002<\/li>\n
        • Class.forName(“com.example.MyClass”) \u901a\u8fc7\u5176\u5b8c\u5168\u9650\u5b9a\u7c7b\u540d\u8fd4\u56de MyClass \u7c7b\u3002<\/li>\n<\/ul>\n
          \u793a\u4f8b\uff1a<\/strong><\/p>\n
          \/\/ \u521b\u5efa\u4e00\u4e2a\u5305\u542b 3 \u4e2a\u7c7b\u7684\u6cdb\u578b\u6570\u7ec4\nClass<?>[] classes = new Class<?>[3];\n\n\/\/ \u5c06\u7c7b\u653e\u5165\u6570\u7ec4\nclasses[0] = MyClass1.class;\nclasses[1] = MyClass2.class;\nclasses[2] = MyClass3.class;<\/pre>\n
           \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
          \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
            \n
          • \u786e\u4fdd\u4f7f\u7528\u6b63\u786e\u7684\u7c7b\u540d\uff0c\u5426\u5219\u4f1a\u5f15\u53d1 ClassNotFoundException\u3002<\/li>\n
          • \u6cdb\u578b\u6570\u7ec4\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u56e0\u6b64\u4e00\u65e6\u521b\u5efa\u5c31\u4e0d\u80fd\u66f4\u6539\u5176\u5927\u5c0f\u6216\u7c7b\u578b\u3002<\/li>\n<\/ul>\n
            \u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u628a\u7c7b\u653e\u5728\u6570\u7ec4\u91cc\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u5728 java \u4e2d\u5c06\u7c7b\u653e\u5165\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a1. \u58f0\u660e\u6cdb\u578b\u6570\u7ec4\uff1aclass[] classes = new class[]\uff1b2. \u901a\u8fc7\u7c7b\u540d\u653e\u5165\u7c7b\uff1aclasses[index] = class.forname(“…”); \u5982\u4f55\u5728 Java \u4e2d\u5c06\u7c7b\u653e\u5165\u6570\u7ec4 \u7b80\u5355\u56de\u7b54\uff1a \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6cdb\u578b\u6570\u7ec4\u5c06\u7c7b\u653e\u5165\u6570\u7ec4\u4e2d\u3002 \u8be6\u7ec6\u56de\u7b54\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Java \u63d0\u4f9b\u4e86\u6cdb\u578b\u6570\u7ec4\uff0c\u5141\u8bb8\u5c06\u4efb\u4f55\u7c7b\u578b\u7684\u5bf9\u8c61\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\uff0c\u5305\u62ec\u7c7b\u3002 \u6b65\u9aa4\uff1a \u58f0\u660e\u4e00\u4e2a\u6cdb\u578b\u6570\u7ec4\uff1a Class<?>[] classes = new Class<?>[size]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a Class>[] \u8868\u793a\u4e00\u4e2a\u7c7b\u5bf9\u8c61\u6570\u7ec4\u3002 size \u662f\u6570\u7ec4\u7684\u5927\u5c0f\u3002 \u5c06\u7c7b\u653e\u5165\u6570\u7ec4\uff1a classes[index] = Class.forName(“com.example.MyClass”); \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a index \u662f\u6570\u7ec4\u4e2d\u7684\u7d22\u5f15\u3002 Class.forName(“com.example.MyClass”) \u901a\u8fc7\u5176\u5b8c\u5168\u9650\u5b9a\u7c7b\u540d\u8fd4\u56de MyClass \u7c7b\u3002 \u793a\u4f8b\uff1a \/\/ \u521b\u5efa\u4e00\u4e2a\u5305\u542b 3 \u4e2a\u7c7b\u7684\u6cdb\u578b\u6570\u7ec4 Class<?>[] classes = […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-34865","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=34865"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34865\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}