{"id":15399,"date":"2024-11-17T20:53:03","date_gmt":"2024-11-17T12:53:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/?p=15399"},"modified":"2024-11-17T20:53:03","modified_gmt":"2024-11-17T12:53:03","slug":"openresty%e4%b8%ad%e8%8e%b7%e5%8f%96%e8%af%b7%e6%b1%82-body","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/15399\/","title":{"rendered":"openResty\u4e2d\u83b7\u53d6\u8bf7\u6c42 body"},"content":{"rendered":"

\u5728 Nginx \u7684\u5178\u578b\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u51e0\u4e4e\u90fd\u662f\u53ea\u8bfb\u53d6 HTTP \u5934\u5373\u53ef\uff0c\u4f8b\u5982\u8d1f\u8f7d\u5747\u8861\u3001\u6b63\u53cd\u5411\u4ee3\u7406\u7b49\u573a\u666f\u3002\u4f46\u662f\u5bf9\u4e8e API Server \u6216\u8005 Web Application \uff0c\u5bf9 body \u53ef\u4ee5\u8bf4\u5c31\u6bd4\u8f83\u654f\u611f\u4e86\u3002<\/p>\n

\u7531\u4e8e OpenResty \u57fa\u4e8e Nginx \uff0c\u6240\u4ee5\u5929\u7136\u7684\u5bf9\u8bf7\u6c42 body \u7684\u8bfb\u53d6\u7ec6\u8282\u4e0e\u5176\u4ed6\u6210\u719f Web \u6846\u67b6\u6709\u4e9b\u4e0d\u540c\u3002\u5728lua\u4ee3\u7801\u4e2d\u4f7f\u7528\u00a0ngx.req.read_body<\/strong>\u00a0\u51fd\u6570 (\u6216\u6253\u5f00\u00a0lua_need_request_body<\/strong>\u00a0\u9009\u9879\u5f3a\u5236\u672c\u6a21\u5757\u8bfb\u53d6\u8bf7\u6c42\u4f53\uff0c\u6b64\u65b9\u6cd5\u4e0d\u63a8\u8350\uff09\u624d\u53ef\u4ee5\u83b7\u53d6\u5230\u8bf7\u6c42 body\u3002\u7a76\u5176\u539f\u56e0\uff0c\u4e3b\u8981\u662f Nginx \u8bde\u751f\u4e4b\u521d\u4e3b\u8981\u662f\u4e3a\u4e86\u89e3\u51b3\u8d1f\u8f7d\u5747\u8861\u60c5\u51b5\uff0c\u800c\u8fd9\u79cd\u60c5\u51b5\uff0c\u662f\u4e0d\u9700\u8981\u8bfb\u53d6 body \u5c31\u53ef\u4ee5\u51b3\u5b9a\u8d1f\u8f7d\u7b56\u7565\u7684\u3002<\/p>\n

\u7531\u4e8e Nginx \u662f\u4e3a\u4e86\u89e3\u51b3\u8d1f\u8f7d\u5747\u8861\u573a\u666f\u8bde\u751f\u7684\uff0c\u6240\u4ee5\u5b83\u9ed8\u8ba4\u662f\u4e0d\u8bfb\u53d6 body \u7684\u884c\u4e3a\uff0c\u4f1a\u5bf9 API Server \u548c Web Application \u573a\u666f\u9020\u6210\u4e00\u4e9b\u5f71\u54cd\u3002\u6839\u636e\u9700\u8981\u6b63\u786e\u8bfb\u53d6\u3001\u4e22\u5f03 body \u5bf9 OpenResty \u5f00\u53d1\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002<\/p>\n

 <\/p>\n

body \u5076\u5c14\u8bfb\u53d6\u4e0d\u5230\uff1f<\/h3>\n

ngx.req.get_body_data()<\/strong>\u00a0\u8bfb\u8bf7\u6c42\u4f53\uff0c\u4f1a\u5076\u5c14\u51fa\u73b0\u8bfb\u53d6\u4e0d\u5230\u76f4\u63a5\u8fd4\u56de nil \u7684\u60c5\u51b5\u3002<\/p>\n

\u5982\u679c\u8bf7\u6c42\u4f53\u5c1a\u672a\u88ab\u8bfb\u53d6\uff0c\u8bf7\u5148\u8c03\u7528\u00a0ngx.req.read_body<\/strong>\u00a0(\u6216\u6253\u5f00\u00a0lua_need_request_body<\/strong>\u00a0\u9009\u9879\u5f3a\u5236\u672c\u6a21\u5757\u8bfb\u53d6\u8bf7\u6c42\u4f53\uff0c\u6b64\u65b9\u6cd5\u4e0d\u63a8\u8350\uff09\u3002<\/p>\n

\u5982\u679c\u8bf7\u6c42\u4f53\u5df2\u7ecf\u88ab\u5b58\u5165\u4e34\u65f6\u6587\u4ef6\uff0c\u8bf7\u4f7f\u7528\u00a0ngx.req.get_body_file<\/strong>\u00a0\u51fd\u6570\u4ee3\u66ff\u3002<\/p>\n

\u5982\u9700\u8981\u5f3a\u5236\u5728\u5185\u5b58\u4e2d\u4fdd\u5b58\u8bf7\u6c42\u4f53\uff0c\u8bf7\u8bbe\u7f6e\u00a0client_body_buffer_size<\/strong>\u00a0\u548c\u00a0client_max_body_size<\/strong>\u00a0\u4e3a\u540c\u6837\u5927\u5c0f\u3002<\/p>\n

1\u3001ngx.req.read_body<\/h1>\n

\u8bed\u6cd5:<\/strong>\u00a0ngx.req.read_body()
\n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0rewrite_by_lua*, access_by_lua*, content_by_lua*<\/em><\/p>\n

\u5f00\u542f\u83b7\u53d6\u8bf7\u6c42\u4e2d\u7684body\u5185\u5bb9\u3002<\/p>\n

\u7ed3\u8bba\uff1a<\/h1>\n
1\u3001lua_need_request_body \u5f00\u542f\u540e\uff0c\u8be5\u51fd\u6570\u4e0d\u6267\u884c\u3002<\/strong>\r\n2\u3001\u5982\u679c\u5728\u8be5\u51fd\u6570\u524d\u6267\u884c ngx.req.discard_body()\uff0c\u8be5\u51fd\u6570\u4e0d\u6267\u884c\u3002<\/strong><\/pre>\n
2\u3001ngx.req.discard_body<\/h1>\n
\u8bed\u6cd5:<\/strong>\u00a0ngx.req.discard_body()
\n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0rewrite_by_lua*, access_by_lua*, content_by_lua*<\/em><\/p>\n
\u7981\u6b62\u83b7\u53d6\u8bf7\u6c42\u4e2d\u7684body\u5185\u5bb9\u3002<\/p>\n
3\u3001ngx.req.get_body_data<\/h1>\n
\u8bed\u6cd5:<\/strong>\u00a0data = ngx.req.get_body_data()
\n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0rewrite_by_lua*, access_by_lua*, content_by_lua*, log_by_lua*<\/em><\/p>\n
\u83b7\u53d6\u8bf7\u6c42body\u7684\u5185\u5bb9\uff0c\u8fd4\u56de\u5b57\u7b26\u4e32\u3002<\/p>\n
\u6ce8\u610f\uff1a\u5982\u679c\u4f7f\u7528\u00a0ngx.req.get_post_args()<\/strong>\uff0c\u5219\u8fd4\u56de\u4e00\u4e2alua table\u3002<\/p>\n
\u4ee5\u4e0b\u4e09\u79cd\u60c5\u51b5\u8fd4\u56de\u00a0nil<\/strong>\uff1a<\/p>\n
    \n
  1. \u672a\u4f7f\u7528 ngx.req.read_body \u8bfb\u53d6\u8bf7\u6c42 body\uff0c\u6216\u672a\u6253\u5f00lua_need_request_body<\/strong>\u00a0\u3002<\/li>\n
  2. \u8bf7\u6c42 body \u7684\u5185\u5bb9\u5df2\u7ecf\u5199\u5165\u4e34\u65f6\u6587\u4ef6\uff1b\u6b64\u65f6\u4f7f\u7528\u00a0ngx.req.get_body_file \u83b7\u53d6\uff0c\u6216\u8bbe\u7f6e\u00a0client_body_buffer_size\u00a0<\/strong>\u548c\u00a0client_max_body_size<\/strong>\u540c\u7b49\u5927\u5c0f\uff0c\u6765\u907f\u514d\u8bf7\u6c42body\u5199\u5165\u4e34\u65f6\u6587\u4ef6\u3002<\/li>\n
  3. \u8bf7\u6c42\u4f53\u7684\u5185\u5bb9\u4e3a\u7a7a\u3002<\/li>\n<\/ol>\n
    4\u3001ngx.req.get_body_file<\/h1>\n
    \u8bed\u6cd5:<\/strong>\u00a0file_name = ngx.req.get_body_file()
    \n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0rewrite_by_lua*, access_by_lua*, content_by_lua*<\/em><\/p>\n
    \u8fd4\u56de\u8bf7\u6c42body\u5199\u5165\u7684\u4e34\u65f6\u6587\u4ef6\u3002\u4f8b\u5982\uff1a\u8fd4\u56de<\/p>\n
    \/usr\/local\/openresty\/nginx\/client_body_temp\/0000000019<\/pre>\n
    \u6ce8\u610f\u4ee5\u4e0b2\u79cd\u60c5\u51b5\u4f1a\u5199\u5165\u4e34\u65f6\u6587\u4ef6\uff1a<\/p>\n
    1\u3001\u8bf7\u6c42body\u7684\u957f\u5ea6\u8d85\u8fc7nginx.conf\u5b9a\u4e49\u7684\u00a0client_body_buffer_size<\/strong>\u00a0\u5927\u5c0f\u3002
    \n2\u3001nginx.conf\u5f00\u542f\u00a0client_body_in_file_only on<\/strong>\u00a0(\u8bf7\u6c42body\u59cb\u7ec8\u5199\u5165\u4e34\u65f6\u6587\u4ef6)<\/p>\n
    5\u3001ngx.req.set_body_data<\/h1>\n
    \u8bed\u6cd5:<\/strong>\u00a0ngx.req.set_body_data(data)
    \n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0rewrite_by_lua*, access_by_lua*, content_by_lua*<\/em><\/p>\n
    \u8bbe\u7f6e\u8bf7\u6c42body\u7684\u5185\u5bb9\uff0c\u4e00\u822c\u7528\u4e8e\u8f6c\u53d1\u8bf7\u6c42\u5230\u5b50\u8bf7\u6c42\u3002<\/p>\n
    \u6ce8\u610f\uff1a<\/strong><\/p>\n
    1\u3001\u5728\u4f7f\u7528\u8be5\u65b9\u6cd5\u65f6\uff0c\u5fc5\u9700\u786e\u4fdd\u5f53\u524d\u8bf7\u6c42\u5df2\u7ecf\u4f7f\u7528 ngx.req.read_body() \u6216\u8005 lua_need_read_body on\uff0c\u5426\u5219\uff0c\u5728\u4f7f\u7528\u8be5\u65b9\u6cd5\u4f1a\u62a5 500 \u9519\u8bef\u3002<\/p>\n
    \u4f8b\u5982\uff1a<\/p>\n
    ngx.req.read_body() --\u5982\u679c\u8be5\u884c\u7701\u7565\uff0c\u5c06\u76f4\u63a5\u62a5\u9519\u3002\r\nngx.req.set_body_data(\"abc\")\r\nngx.exec(\"\/app\/detail\")<\/pre>\n
    6\u3001ngx.req.set_body_file<\/h1>\n
    \u8bed\u6cd5:<\/strong>\u00a0ngx.req.set_body_file(file_name, auto_clean?)
    \n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0rewrite_by_lua*, access_by_lua*, content_by_lua*<\/em><\/p>\n
    7\u3001ngx.req.init_body<\/h1>\n
    \u8bed\u6cd5:<\/strong>\u00a0ngx.req.init_body(buffer_size?)
    \n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0set_by_lua*, rewrite_by_lua*, access_by_lua*, content_by_lua*<\/em><\/p>\n
    8\u3001ngx.req.append_body<\/h1>\n
    \u8bed\u6cd5:<\/strong>\u00a0ngx.req.append_body(data_chunk)
    \n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0set_by_lua*, rewrite_by_lua*, access_by_lua*, content_by_lua*<\/em><\/p>\n
    9\u3001ngx.req.finish_body<\/h1>\n
    \u8bed\u6cd5:<\/strong>\u00a0ngx.req.finish_body()
    \n<\/em>\u4f5c\u7528\u57df:<\/strong>\u00a0set_by_lua*, rewrite_by_lua*, access_by_lua*, content_by_lua*<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5728 Nginx \u7684\u5178\u578b\u5e94\u7528\u573a\u666f\u4e2d\uff0c\u51e0\u4e4e\u90fd\u662f\u53ea\u8bfb\u53d6 HTTP \u5934\u5373\u53ef\uff0c\u4f8b\u5982\u8d1f\u8f7d\u5747\u8861\u3001\u6b63\u53cd\u5411\u4ee3\u7406\u7b49\u573a\u666f\u3002\u4f46\u662f\u5bf9\u4e8e API Server \u6216\u8005 Web Application \uff0c\u5bf9 body \u53ef\u4ee5\u8bf4\u5c31\u6bd4\u8f83\u654f\u611f\u4e86\u3002 \u7531\u4e8e OpenResty \u57fa\u4e8e Nginx \uff0c\u6240\u4ee5\u5929\u7136\u7684\u5bf9\u8bf7\u6c42 body \u7684\u8bfb\u53d6\u7ec6\u8282\u4e0e\u5176\u4ed6\u6210\u719f Web \u6846\u67b6\u6709\u4e9b\u4e0d\u540c\u3002\u5728lua\u4ee3\u7801\u4e2d\u4f7f\u7528\u00a0ngx.req.read_body\u00a0\u51fd\u6570 (\u6216\u6253\u5f00\u00a0lua_need_request_body\u00a0\u9009\u9879\u5f3a\u5236\u672c\u6a21\u5757\u8bfb\u53d6\u8bf7\u6c42\u4f53\uff0c\u6b64\u65b9\u6cd5\u4e0d\u63a8\u8350\uff09\u624d\u53ef\u4ee5\u83b7\u53d6\u5230\u8bf7\u6c42 body\u3002\u7a76\u5176\u539f\u56e0\uff0c\u4e3b\u8981\u662f Nginx \u8bde\u751f\u4e4b\u521d\u4e3b\u8981\u662f\u4e3a\u4e86\u89e3\u51b3\u8d1f\u8f7d\u5747\u8861\u60c5\u51b5\uff0c\u800c\u8fd9\u79cd\u60c5\u51b5\uff0c\u662f\u4e0d\u9700\u8981\u8bfb\u53d6 body \u5c31\u53ef\u4ee5\u51b3\u5b9a\u8d1f\u8f7d\u7b56\u7565\u7684\u3002 \u7531\u4e8e Nginx \u662f\u4e3a\u4e86\u89e3\u51b3\u8d1f\u8f7d\u5747\u8861\u573a\u666f\u8bde\u751f\u7684\uff0c\u6240\u4ee5\u5b83\u9ed8\u8ba4\u662f\u4e0d\u8bfb\u53d6 body \u7684\u884c\u4e3a\uff0c\u4f1a\u5bf9 API Server \u548c Web Application \u573a\u666f\u9020\u6210\u4e00\u4e9b\u5f71\u54cd\u3002\u6839\u636e\u9700\u8981\u6b63\u786e\u8bfb\u53d6\u3001\u4e22\u5f03 body \u5bf9 OpenResty \u5f00\u53d1\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002   body \u5076\u5c14\u8bfb\u53d6\u4e0d\u5230\uff1f ngx.req.get_body_data()\u00a0\u8bfb\u8bf7\u6c42\u4f53\uff0c\u4f1a\u5076\u5c14\u51fa\u73b0\u8bfb\u53d6\u4e0d\u5230\u76f4\u63a5\u8fd4\u56de nil \u7684\u60c5\u51b5\u3002 \u5982\u679c\u8bf7\u6c42\u4f53\u5c1a\u672a\u88ab\u8bfb\u53d6\uff0c\u8bf7\u5148\u8c03\u7528\u00a0ngx.req.read_body\u00a0(\u6216\u6253\u5f00\u00a0lua_need_request_body\u00a0\u9009\u9879\u5f3a\u5236\u672c\u6a21\u5757\u8bfb\u53d6\u8bf7\u6c42\u4f53\uff0c\u6b64\u65b9\u6cd5\u4e0d\u63a8\u8350\uff09\u3002 \u5982\u679c\u8bf7\u6c42\u4f53\u5df2\u7ecf\u88ab\u5b58\u5165\u4e34\u65f6\u6587\u4ef6\uff0c\u8bf7\u4f7f\u7528\u00a0ngx.req.get_body_file\u00a0\u51fd\u6570\u4ee3\u66ff\u3002 \u5982\u9700\u8981\u5f3a\u5236\u5728\u5185\u5b58\u4e2d\u4fdd\u5b58\u8bf7\u6c42\u4f53\uff0c\u8bf7\u8bbe\u7f6e\u00a0client_body_buffer_size\u00a0\u548c\u00a0client_max_body_size\u00a0\u4e3a\u540c\u6837\u5927\u5c0f\u3002 1\u3001ngx.req.read_body \u8bed\u6cd5:\u00a0ngx.req.read_body() \u4f5c\u7528\u57df:\u00a0rewrite_by_lua*, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-15399","post","type-post","status-publish","format-standard","hentry","category-docker"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/15399","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=15399"}],"version-history":[{"count":1,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/15399\/revisions"}],"predecessor-version":[{"id":15400,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/15399\/revisions\/15400"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=15399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=15399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=15399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}