{"id":203638,"date":"2025-05-22T12:53:42","date_gmt":"2025-05-22T04:53:42","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203638\/"},"modified":"2025-05-22T12:53:42","modified_gmt":"2025-05-22T04:53:42","slug":"java-%e7%a8%8b%e5%ba%8f%e4%b8%ad-classnotfoundexception-%e9%94%99%e8%af%af%ef%bc%9a%e9%87%8d%e5%90%af%e5%90%8e%e6%b6%88%e5%a4%b1%e7%9a%84%e5%8e%9f%e5%9b%a0%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203638\/","title":{"rendered":"Java \u7a0b\u5e8f\u4e2d ClassNotFoundException \u9519\u8bef\uff1a\u91cd\u542f\u540e\u6d88\u5931\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java \u7a0b\u5e8f\u4e2d ClassNotFoundException \u9519\u8bef\uff1a\u91cd\u542f\u540e\u6d88\u5931\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u5bf9\u4e8e\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u7262\u56fa\u624e\u5b9e\u7684\u57fa\u7840\u662f\u5341\u5206\u91cd\u8981\u7684\uff0c\u5c31\u6765\u5e26\u5927\u5bb6\u4e00\u70b9\u70b9\u7684\u638c\u63e1\u57fa\u7840\u77e5\u8bc6\u70b9\u3002\u4eca\u5929\u672c\u7bc7\u6587\u7ae0\u5e26\u5927\u5bb6\u4e86\u89e3\u300aJava \u7a0b\u5e8f\u4e2d ClassNotFoundException \u9519\u8bef\uff1a\u91cd\u542f\u540e\u6d88\u5931\u7684\u539f\u56e0\u662f\u4ec0\u4e48\uff1f\u300b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e86\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u5feb\u70b9\u6536\u85cf\u8d77\u6765\u5427\uff0c\u5426\u5219\u9700\u8981\u65f6\u5c31\u627e\u4e0d\u5230\u4e86\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241115\/17316481076736da6b26dfc.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>classnotfoundexception \u9519\u8bef\uff1a\u91cd\u542f\u7a0b\u5e8f\u540e\u6d88\u5931<\/strong><\/p>\n<p>\u5728 java \u7a0b\u5e8f\u4e2d\u906d\u9047\u4e86 classnotfoundexception \u9519\u8bef\uff0c\u91cd\u542f\u7a0b\u5e8f\u540e\u5374\u5947\u8ff9\u822c\u5730\u6d88\u5931\u4e86\u3002\u4ee4\u4eba\u8d39\u89e3\u7684\u662f\uff0c\u51fa\u9519\u7684\u7c7b\u660e\u660e\u5b58\u5728\u4e14\u5df2\u88ab\u5bfc\u5165\u3002<\/p>\n<p>\u67e5\u770b\u9519\u8bef\u4fe1\u606f\uff0c\u53d1\u73b0\u65e0\u6cd5\u627e\u5230 com.vcanbuy.web.excel.model.noordercustomersexcel \u7c7b\u3002\u6b64\u7c7b\u7528\u4e8e\u5bfc\u51fa\u5ba2\u6237\u6570\u636e\u5230 excel \u6587\u4ef6\u3002<\/p>\n<p>\u4ed4\u7ec6\u68c0\u67e5\u4ee3\u7801\uff0c\u5728\u4ee5\u4e0b\u65b9\u6cd5\u4e2d\u4f7f\u7528\u4e86\u8be5\u7c7b\uff1a<\/p>\n<pre>@GetMapping(\"no_order_customers\")\npublic void exportNoOrderCustomers(...) {\n    ...\n    WebUtil.downloadExcel(..., NoOrderCustomersExcel.class);\n}<\/pre>\n<p>\u7136\u800c\uff0c\u8be5\u7c7b\u6240\u5728\u7684 jar \u5305\u7684\u4f4d\u7f6e\u5f88\u8be1\u5f02\u2014\u2014\u5b83\u662f\u88ab\u91ca\u653e\u5230\u4e86\u4e34\u65f6\u6587\u4ef6\u5939\u4e2d\u3002\u5bfc\u81f4\u7684\u95ee\u9898\u662f\uff0c\u5f53\u670d\u52a1\u5668\u91cd\u542f\u6216\u8fdb\u884c\u7cfb\u7edf\u6e05\u7406\u65f6\uff0c\u8be5 jar \u5305\u5c31\u4f1a\u88ab\u5220\u9664\uff0c\u4ece\u800c\u5bfc\u81f4 classnotfoundexception\u3002<\/p>\n<p>\u91cd\u542f\u7a0b\u5e8f\u540e\uff0cjar \u5305\u53c8\u4f1a\u88ab\u521b\u5efa\u548c\u52a0\u8f7d\uff0c\u56e0\u6b64\u9519\u8bef\u5c31\u4f1a\u6d88\u5931\u3002\u7136\u800c\uff0c\u4e00\u65e6 jar \u5305\u518d\u6b21\u88ab\u6e05\u9664\uff0c\u9519\u8bef\u5c31\u4f1a\u518d\u6b21\u51fa\u73b0\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6848\u662f\u5c06 jar \u5305\u79fb\u52a8\u5230\u6c38\u4e45\u6027\u4f4d\u7f6e\uff0c\u4ee5\u786e\u4fdd\u5b83\u59cb\u7ec8\u53ef\u4f9b\u7a0b\u5e8f\u8bbf\u95ee\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u7a0b\u5e8f\u4e2d ClassNo&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203638","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203638"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203638\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}