{"id":203339,"date":"2025-05-22T11:32:06","date_gmt":"2025-05-22T03:32:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203339\/"},"modified":"2025-05-22T11:32:06","modified_gmt":"2025-05-22T03:32:06","slug":"springboot-2-2-x-%e4%b8%ad%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad%e5%af%b9%e8%b1%a1%e4%b8%ba%e7%a9%ba%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203339\/","title":{"rendered":"SpringBoot 2.2.x \u4e2d\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u4e3a\u7a7a\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

SpringBoot 2.2.x \u4e2d\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u4e3a\u7a7a\uff1f<\/h1>\n

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<\/p>\n

SpringBoot 2.2.x\uff1a\u5224\u65ad\u5bf9\u8c61\u4e3a\u7a7a\u7684\u56f0\u60d1<\/strong><\/p>\n

\u5728\u4f7f\u7528 SpringBoot 2.2.x \u65f6\uff0c\u60a8\u53ef\u80fd\u5728\u4f7f\u7528 JPA \u67e5\u8be2\u6570\u636e\u65f6\u9047\u5230\u4e00\u4e2a\u95ee\u9898\uff0cIdea \u7f16\u8f91\u5668\u63d0\u793a\uff1a”Cannot resolve symbol ‘null’\u3002”<\/p>\n

\u95ee\u9898\uff1a\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u4e3a\u7a7a\uff1f<\/strong><\/p>\n

\u5f53\u60a8\u8c03\u7528\u4e86\u4e00\u4e2a\u5bf9\u8c61\u7684\u67d0\u4e2a\u65b9\u6cd5\uff0c\u4f46\u53c8\u60f3\u68c0\u67e5\u8be5\u5bf9\u8c61\u662f\u5426\u4e3a null \u65f6\uff0c\u5c31\u4f1a\u51fa\u73b0\u8fd9\u4e2a\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u80fd\u5728\u8c03\u7528\u5bf9\u8c61\u7684 System.out.print() \u65b9\u6cd5\u65f6\u6dfb\u52a0\u4e86\u7a7a\u5224\u65ad\u3002<\/p>\n

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\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aSpringBoot 2.2.x \u4e2d\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u4e3a\u7a7a\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

SpringBoot 2.2.x...<\/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-203339","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203339","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=203339"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203339\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}