{"id":52956,"date":"2024-12-03T09:42:22","date_gmt":"2024-12-03T01:42:22","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52956\/"},"modified":"2024-12-03T09:42:22","modified_gmt":"2024-12-03T01:42:22","slug":"formdata-append%e5%af%bc%e8%87%b4%e5%ad%97%e6%ae%b5%e6%98%be%e7%a4%ba%e4%b8%banull%ef%bc%9a%e7%a9%ba%e6%a0%bc%e6%98%af%e7%bd%aa%e9%ad%81%e7%a5%b8%e9%a6%96%e5%90%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52956\/","title":{"rendered":"FormData.append()\u5bfc\u81f4\u5b57\u6bb5\u663e\u793a\u4e3aNull\uff1a\u7a7a\u683c\u662f\u7f6a\u9b41\u7978\u9996\u5417\uff1f"},"content":{"rendered":"

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

FormData.append()\u5bfc\u81f4\u5b57\u6bb5\u663e\u793a\u4e3aNull\uff1a\u7a7a\u683c\u662f\u7f6a\u9b41\u7978\u9996\u5417\uff1f<\/h1>\n

\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300aFormData.append()\u5bfc\u81f4\u5b57\u6bb5\u663e\u793a\u4e3aNull\uff1a\u7a7a\u683c\u662f\u7f6a\u9b41\u7978\u9996\u5417\uff1f\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n

\"FormData.append()\u5bfc\u81f4\u5b57\u6bb5\u663e\u793a\u4e3aNull\uff1a\u7a7a\u683c\u662f\u7f6a\u9b41\u7978\u9996\u5417\uff1f\u63d2\u56fe\"<\/p>\n

formdata.append \u5bfc\u81f4\u7279\u5b9a\u5b57\u6bb5\u663e\u793a null \u95ee\u9898\u7684\u6839\u6e90<\/strong><\/p>\n

\u5728\u4f7f\u7528 formdata.append() \u6dfb\u52a0\u5b57\u6bb5\u540e\uff0c\u67d0\u4e9b\u5b57\u6bb5\u5728\u4f7f\u7528 console.log() \u6253\u5370\u65f6\u5374\u663e\u793a null\uff0c\u8fd9\u662f\u4ee4\u4eba\u8d39\u89e3\u7684\u95ee\u9898\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u4e86\u89e3\u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\u7684\u539f\u56e0\u3002<\/p>\n

\u5728\u7ed9\u51fa\u7684\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u5728\u8c03\u7528 formdata.append() \u51fd\u6570\u6dfb\u52a0 “kb_id” \u5b57\u6bb5\u65f6\uff0c\u8be5\u5b57\u6bb5\u7684\u503c\u6b63\u786e\u663e\u793a\u3002\u7136\u800c\uff0c\u5728\u6dfb\u52a0 “doc_id” \u5b57\u6bb5\u65f6\uff0cconsole.log() \u6253\u5370\u7684\u503c\u5374\u662f null\u3002<\/p>\n

\u4ed4\u7ec6\u68c0\u67e5\u4ee3\u7801\u4f1a\u53d1\u73b0\uff0c\u5728\u6dfb\u52a0 “doc_id” \u5b57\u6bb5\u65f6\u4f7f\u7528\u4e86 “formdata.append(‘doc_id ‘, payload.doc_id)”\u3002\u6211\u4eec\u4f1a\u6ce8\u610f\u5230 key “doc_id ” \u4e2d\u6709\u4e00\u4e2a\u591a\u4f59\u7684\u7a7a\u683c\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n

\u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u786e\u4fdd key \u4e2d\u6ca1\u6709\u591a\u4f59\u7684\u7a7a\u683c\u3002\u4fee\u6539\u4ee3\u7801\u4e3a “formdata.append(‘doc_id’, payload.doc_id)”\uff0c\u8fd9\u6837\u5c31\u80fd\u6b63\u786e\u8bbe\u7f6e “doc_id” \u5b57\u6bb5\u7684\u503c\uff0c\u5e76\u53ef\u4ee5\u5728 console.log() \u4e2d\u6253\u5370\u51fa\u6b63\u786e\u7684 string \u503c\u3002<\/p>\n

\u4fee\u6539\u540e\u7684\u4ee3\u7801<\/strong><\/p>\n

formData.append('doc_id', payload.doc_id);\nconsole.log(formData.get('doc_id'))<\/pre>\n
\u4ee5\u4e0a\u5c31\u662f\u300aFormData.append()\u5bfc\u81f4\u5b57\u6bb5\u663e\u793a\u4e3aNull\uff1a\u7a7a\u683c\u662f\u7f6a\u9b41\u7978\u9996\u5417\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n
\n
<\/dt>\n
\n   \u5982\u4f55\u5728 Go \u4ee3\u7801\u4e2d\u83b7\u53d6\u5305\u542b Java \u811a\u672c\u7684\u7edd\u5bf9\u8def\u5f84\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
FormData.append()\u5bfc\u81f4\u5b57\u6bb5\u663e\u793a\u4e3aNull\uff1a\u7a7a\u683c\u662f\u7f6a\u9b41\u7978\u9996\u5417\uff1f \u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300aFormData.append()\u5bfc\u81f4\u5b57\u6bb5\u663e\u793a\u4e3aNull\uff1a\u7a7a\u683c\u662f\u7f6a\u9b41\u7978\u9996\u5417\uff1f\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002 formdata.append \u5bfc\u81f4\u7279\u5b9a\u5b57\u6bb5\u663e\u793a null \u95ee\u9898\u7684\u6839\u6e90 \u5728\u4f7f\u7528 formdata.append() \u6dfb\u52a0\u5b57\u6bb5\u540e\uff0c\u67d0\u4e9b\u5b57\u6bb5\u5728\u4f7f\u7528 console.log() \u6253\u5370\u65f6\u5374\u663e\u793a null\uff0c\u8fd9\u662f\u4ee4\u4eba\u8d39\u89e3\u7684\u95ee\u9898\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u9996\u5148\u9700\u8981\u4e86\u89e3\u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\u7684\u539f\u56e0\u3002 \u5728\u7ed9\u51fa\u7684\u4ee3\u7801\u793a\u4f8b\u4e2d\uff0c\u5728\u8c03\u7528 formdata.append() \u51fd\u6570\u6dfb\u52a0 “kb_id” \u5b57\u6bb5\u65f6\uff0c\u8be5\u5b57\u6bb5\u7684\u503c\u6b63\u786e\u663e\u793a\u3002\u7136\u800c\uff0c\u5728\u6dfb\u52a0 “doc_id” \u5b57\u6bb5\u65f6\uff0cconsole.log() \u6253\u5370\u7684\u503c\u5374\u662f null\u3002 \u4ed4\u7ec6\u68c0\u67e5\u4ee3\u7801\u4f1a\u53d1\u73b0\uff0c\u5728\u6dfb\u52a0 “doc_id” \u5b57\u6bb5\u65f6\u4f7f\u7528\u4e86 “formdata.append(‘doc_id ‘, payload.doc_id)”\u3002\u6211\u4eec\u4f1a\u6ce8\u610f\u5230 key “doc_id ” \u4e2d\u6709\u4e00\u4e2a\u591a\u4f59\u7684\u7a7a\u683c\u3002 \u89e3\u51b3\u65b9\u6cd5 \u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u786e\u4fdd key \u4e2d\u6ca1\u6709\u591a\u4f59\u7684\u7a7a\u683c\u3002\u4fee\u6539\u4ee3\u7801\u4e3a “formdata.append(‘doc_id’, payload.doc_id)”\uff0c\u8fd9\u6837\u5c31\u80fd\u6b63\u786e\u8bbe\u7f6e “doc_id” \u5b57\u6bb5\u7684\u503c\uff0c\u5e76\u53ef\u4ee5\u5728 console.log() \u4e2d\u6253\u5370\u51fa\u6b63\u786e\u7684 string \u503c\u3002 \u4fee\u6539\u540e\u7684\u4ee3\u7801 formData.append(‘doc_id’, payload.doc_id); console.log(formData.get(‘doc_id’)) \u4ee5\u4e0a\u5c31\u662f\u300aFormData.append()\u5bfc\u81f4\u5b57\u6bb5\u663e\u793a\u4e3aNull\uff1a\u7a7a\u683c\u662f\u7f6a\u9b41\u7978\u9996\u5417\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01 \u5982\u4f55\u5728 Go \u4ee3\u7801\u4e2d\u83b7\u53d6\u5305\u542b Java \u811a\u672c\u7684\u7edd\u5bf9\u8def\u5f84\uff1f<\/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-52956","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52956","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=52956"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52956\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=52956"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=52956"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=52956"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}