{"id":12352,"date":"2023-11-28T22:51:11","date_gmt":"2023-11-28T14:51:11","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=12352"},"modified":"2023-12-11T16:24:00","modified_gmt":"2023-12-11T08:24:00","slug":"spring-zhongjava-fan-xing-ca-xie-fa-sheng-zai-bian","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-zhongjava-fan-xing-ca-xie-fa-sheng-zai-bian\/","title":{"rendered":"Spring\u4e2dJava\u6cdb\u578b\u64e6\u5199\u53d1\u751f\u5728\u7f16\u8bd1\u65f6\u8fd8\u662f\u8fd0\u884c\u65f6\uff1f"},"content":{"rendered":"<p>Java\u6cdb\u578b\u64e6\u5199\uff08Type Erasure\uff09\u662f\u53d1\u751f\u5728\u7f16\u8bd1\u65f6\u7684\u8fc7\u7a0b\u3002\u5728\u7f16\u8bd1Java\u4ee3\u7801\u65f6\uff0c\u6cdb\u578b\u4fe1\u606f\u4f1a\u88ab\u64e6\u9664\uff0c\u7f16\u8bd1\u5668\u4f1a\u5c06\u6cdb\u578b\u4ee3\u7801\u8f6c\u6362\u4e3a\u539f\u59cb\u7c7b\u578b\u3002\u8fd9\u662f\u4e3a\u4e86\u4fdd\u6301Java\u7684\u5411\u540e\u517c\u5bb9\u6027\uff0c\u56e0\u4e3aJava\u7684\u6cdb\u578b\u662f\u5728JDK 5\u5f15\u5165\u7684\uff0c\u800c\u5728\u6b64\u4e4b\u524d\u7684\u7248\u672c\u662f\u6ca1\u6709\u6cdb\u578b\u7684\u3002<\/p>\n<p>\u5728\u7f16\u8bd1\u65f6\uff0c\u6cdb\u578b\u7c7b\u578b\u4fe1\u606f\u88ab\u64e6\u9664\uff0c\u5e76\u4e14\u7c7b\u578b\u53c2\u6570\u88ab\u66ff\u6362\u4e3a\u5b83\u4eec\u7684\u4e0a\u754c\uff08\u5bf9\u4e8e\u901a\u914d\u7b26\u7c7b\u578b\uff09\u6216\u8005Object\uff08\u5bf9\u4e8e\u672a\u6307\u5b9a\u4e0a\u754c\u7684\u7c7b\u578b\uff09\u3002\u8fd9\u610f\u5473\u7740\u5728\u8fd0\u884c\u65f6\uff0cJVM \u4e0d\u4f1a\u4fdd\u7559\u6cdb\u578b\u7c7b\u578b\u7684\u5b9e\u9645\u4fe1\u606f\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u8003\u8651\u4ee5\u4e0b\u7684\u6cdb\u578b\u7c7b\uff1a<\/p>\n<pre><code class=\"language-java\">public class MyGenericClass&lt;T&gt; {\n    private T data;\n\n    public T getData() {\n        return data;\n    }\n\n    public void setData(T data) {\n        this.data = data;\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u7f16\u8bd1\u65f6\uff0c<code>MyGenericClass&lt;T&gt;<\/code>\u4f1a\u88ab\u64e6\u5199\u4e3a<code>MyGenericClass&lt;Object&gt;<\/code>\u3002\u56e0\u6b64\uff0c\u867d\u7136\u6211\u4eec\u5728\u6e90\u4ee3\u7801\u4e2d\u4f7f\u7528\u4e86\u6cdb\u578b\u7c7b\u578b\uff0c\u4f46\u5728\u8fd0\u884c\u65f6\uff0cJava\u865a\u62df\u673a\u53ea\u77e5\u9053\u5b83\u662f\u4e00\u4e2a<code>MyGenericClass<\/code>\uff0c\u800c\u4e0d\u77e5\u9053\u5b9e\u9645\u7684\u7c7b\u578b\u53c2\u6570\u3002<\/p>\n<p>\u8fd9\u6837\u7684\u64e6\u5199\u673a\u5236\u4f7f\u5f97\u6cdb\u578b\u5728\u7f16\u8bd1\u65f6\u63d0\u4f9b\u7c7b\u578b\u5b89\u5168\u6027\uff0c\u800c\u5728\u8fd0\u884c\u65f6\u53ef\u4ee5\u517c\u5bb9\u65e7\u7248\u672c\u7684\u4ee3\u7801\u3002\u4f46\u540c\u65f6\u4e5f\u5e26\u6765\u4e86\u4e00\u4e9b\u9650\u5236\uff0c\u4f8b\u5982\u4e0d\u80fd\u5728\u8fd0\u884c\u65f6\u83b7\u53d6\u6cdb\u578b\u7c7b\u578b\u7684\u5b9e\u9645\u53c2\u6570\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u6cdb\u578b\u64e6\u5199\uff08Type Erasure\uff09\u662f\u53d1\u751f\u5728\u7f16\u8bd1\u65f6\u7684\u8fc7\u7a0b\u3002\u5728\u7f16\u8bd1Java\u4ee3\u7801\u65f6\uff0c\u6cdb\u578b\u4fe1\u606f\u4f1a\u88ab\u64e6\u9664\uff0c\u7f16\u8bd1 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[121],"tags":[],"class_list":["post-12352","post","type-post","status-publish","format-standard","hentry","category-spring"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12352","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=12352"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12352\/revisions"}],"predecessor-version":[{"id":47892,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12352\/revisions\/47892"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=12352"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=12352"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=12352"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}