{"id":4241,"date":"2020-04-08T12:45:29","date_gmt":"2020-04-08T04:45:29","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=4241"},"modified":"2020-04-08T12:45:29","modified_gmt":"2020-04-08T04:45:29","slug":"%e5%8f%8d%e5%b0%84%e6%9c%ba%e5%88%b6","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/4241","title":{"rendered":"\u53cd\u5c04\u673a\u5236"},"content":{"rendered":"<p class=\"p15\"><a href=\"https:\/\/www.cnblogs.com\/swey\/p\/4733638.html\">\u539f\u6587\u5730\u5740<\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"p0\">java\u5728\u8fd0\u884c\u72b6\u6001\u65f6\uff0c\u80fd\u591f\u77e5\u9053\u4efb\u610f\u7c7b\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u90fd\u80fd\u591f\u8c03\u7528\u4efb\u610f\u5bf9\u8c61\u7684\u4efb\u610f\u65b9\u6cd5\u548c\u5c5e\u6027\u3002\u8fd9\u79cd\u52a8\u6001\u83b7\u53d6\u7684\u4fe1\u606f\u4ee5\u53ca\u52a8\u6001\u8c03\u7528\u5bf9\u8c61\u7684\u65b9\u6cd5\u7684\u529f\u80fd\u79f0\u4e3ajava\u8bed\u8a00\u7684\u53cd\u5c04\u673a\u5236\u3002<\/p>\n<p class=\"p0\">C++\u672c\u8eab\u6ca1\u6709\u53cd\u5c04\u673a\u5236\u3002protobuf\u901a\u8fc7proto\u6587\u4ef6\u751f\u6210\u76f8\u5e94\u7684message\u548cservice\uff0cprotobuf\u4e5f\u901a\u8fc7proto\u6587\u4ef6\u63d0\u4f9b\u53cd\u5c04\u673a\u5236\uff0c\u7a0b\u5e8f\u5728\u8fd0\u884c\u65f6\u53ef\u4ee5\u901a\u8fc7proto\u83b7\u53d6\u4efb\u610fmessage\u548c\u4efb\u610fservice\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u4e5f\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u8c03\u7528message\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<h1>\u83b7\u53d6message\u548cservice\u7684\u5c5e\u6027\u548c\u65b9\u6cd5<\/h1>\n<p class=\"p0\">protobuf\u901a\u8fc7Descriptor\u83b7\u53d6\u4efb\u610fmessage\u6216service\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0cDescriptor\u4e3b\u8981\u5305\u62ec\u4e86\u4ee5\u4e0b\u96c6\u4e2d\u7c7b\u578b\uff1a<\/p>\n<p class=\"p0\">\n<p class=\"p0\">FileDescriptor \u3000\u3000\u83b7\u53d6proto\u6587\u4ef6\u4e2d\u7684Descriptor\u548cServiceDescriptor<\/p>\n<p class=\"p0\">Descriptor \u3000\u3000\u3000 \u00a0\u83b7\u53d6\u7c7bmessage\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u5305\u62ecFieldDescriptor\u00a0\u548c\u00a0EnumDescriptor\u7b49<\/p>\n<p class=\"p0\">FieldDescriptor\u00a0\u3000\u00a0\u83b7\u53d6message\u4e2d\u5404\u4e2a\u5b57\u6bb5\u7684\u7c7b\u578b\u3001\u6807\u7b7e\u3001\u540d\u79f0\u7b49<\/p>\n<p class=\"p0\">EnumDescriptor \u00a0 \u83b7\u53d6Enum\u4e2d\u7684\u5404\u4e2a\u5b57\u6bb5\u540d\u79f0\u3001\u503c\u7b49<\/p>\n<p class=\"p0\">ServiceDescriptor \u83b7\u53d6service\u4e2d\u7684MethodDescriptor<\/p>\n<p class=\"p0\">MethodDescriptor \u83b7\u53d6\u5404\u4e2arpc\u4e2d\u7684request\u3001response\u3001\u540d\u79f0\u7b49<\/p>\n<p class=\"p0\">\n<p class=\"p0\">\u5f53\u6211\u4eec\u83b7\u5f97proto\u6587\u4ef6\u7684FileDescriptor\u65f6\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u83b7\u5f97\u6240\u6709\u7684service\u7684Descriptor\u548cservice\u7684ServiceDescriptor\uff0c\u8fdb\u800c\u83b7\u53d6\u5176\u76f8\u5e94\u7684\u5b57\u6bb5\u6216rpc\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u80fd\u83b7\u53d6\u5230proto\u6587\u4ef6\u7684FileDescriptor\uff0c\u5c31\u80fd\u6240\u6709\u7684proto\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u5185\u5bb9\u3002<\/p>\n<p class=\"p0\">\u90a3\u4e48\u5982\u4f55\u83b7\u53d6proto\u6587\u4ef6\u7684FileDescriptor\u5462\uff1fprotobuf\u5bf9\u5e94\u4ee5\u4e0b\u4e24\u79cd\u4e0d\u540c\u7684\u60c5\u51b5\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u529e\u6cd5<\/p>\n<p class=\"p0\">1\u3001\u00a0\u4f7f\u7528protoc\u5c06proto\u6587\u4ef6\u5e76\u751f\u6210\u76f8\u5e94\u7684.h\u548c.cpp\u6587\u4ef6\u3002<\/p>\n<p class=\"p0\">\u8fd9\u4e2d\u60c5\u51b5\u4e0bprotobuf\u5df2\u7ecf\u89e3\u6790\u597dproto\u6587\u4ef6\uff0c\u5e76\u5c06\u6240\u6709\u7684Descriptor\u653e\u5728DescriptorPool\u4e2d\u4e86\u3002\uff0c\u53ef\u4ee5\u6839\u636eproto\u7684\u6587\u4ef6\u540d\uff0c\u901a\u8fc7DescriptorPool\u83b7\u53d6\u5230\u76f8\u5e94\u7684FileDescriptor\uff0c\u4f8b\u5982\uff0c\u73b0\u6709test.proto\u6587\u4ef6\uff0c\u90a3\u4e48\u53ef\u4ee5\u901a\u8fc7DescriptorPool::generated_pool()\u83b7\u53d6\u5230\u5176FileDescriptor\u3002\u5176\u5b9e\uff0c\u5bf9\u4e8e\u4efb\u610f\u7684message\u548cservice\uff0c\u4e5f\u90fd\u53ef\u4ee5\u6839\u636e\u5176\u540d\u79f0\uff0c\u901a\u8fc7DescriptorPool\u83b7\u53d6\u76f8\u5e94\u7684Descriptor\u548cServiceDescriptor\u3002\u4f8b\u5982\uff1a<\/p>\n<p class=\"p0\"><img decoding=\"async\" src=\"https:\/\/images0.cnblogs.com\/blog2015\/686182\/201508\/160930307542802.png\" alt=\"\" \/><\/p>\n<p class=\"p0\">2\u3001\u00a0\u53ea\u6709proto\u6587\u4ef6\uff0c\u4e0d\u4f7f\u7528protoc\u3002<\/p>\n<p class=\"p0\">\u8fd9\u79cd\u60c5\u51b5\u9700\u8981\u53bb\u624b\u52a8\u89e3\u6790proto\u6587\u4ef6\uff0c\u7136\u540e\u518d\u83b7\u53d6FileDescriptor\u3002\u8fd8\u597dprotobuf\u63d0\u4f9b\u4e86\u76f8\u5e94\u7684\u89e3\u6790\u5668compiler\uff0c\u901a\u8fc7compiler\u53ef\u4ee5\u5f88\u65b9\u4fbf\u5f97\u83b7\u53d6proto\u6587\u4ef6\u7684FileDescriptor\uff0c\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n<p class=\"p0\">\u00a0<img decoding=\"async\" src=\"https:\/\/images0.cnblogs.com\/blog2015\/686182\/201508\/160930507547358.png\" alt=\"\" \/><\/p>\n<h1>\u8c03\u7528message\u7684\u5c5e\u6027\u548c\u65b9\u6cd5<\/h1>\n<p class=\"p0\">\u60f3\u8981\u8c03\u7528message\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u5c31\u5f97\u5148\u83b7\u53d6\u76f8\u5e94\u7684message\u5bf9\u8c61\u3002protobuf\u7684message\u5bf9\u8c61\u90fd\u662f\u653e\u5728MessageFactory\u4e2d\u7684\uff0c\u53ef\u4ee5\u901a\u8fc7Descriptor\uff0c\u5177\u4f53\u5982\u4e0b\uff1a<\/p>\n<p class=\"p0\">\u00a0<img decoding=\"async\" src=\"https:\/\/images0.cnblogs.com\/blog2015\/686182\/201508\/160931195519894.png\" alt=\"\" \/><\/p>\n<p class=\"p0\">\u6709\u4e86message\u5bf9\u8c61\uff0c\u5e76\u4e0d\u80fd\u76f4\u63a5\u8c03\u7528\u5176\u5bf9\u8c61\u548c\u65b9\u6cd5\uff0c\u56e0\u4e3a\u6240\u6709\u7684message\u5bf9\u8c61\u90fd\u662fMessage*\u7c7b\u578b\u7684\uff0c\u4f46\u4e0d\u540c\u7684message\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u5728\u8fd9\u91cc\uff0cMessage*\u53ea\u662f\u6307\u5411\u76f8\u5e94\u7684message\u5927\u5c0f\u7684\u5730\u5740\u7a7a\u95f4\uff0c\u5e76\u4e0d\u77e5\u9053\u5bf9\u5e94\u7684message\u4e2d\u5230\u5e95\u6709\u54ea\u4e9b\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<p class=\"p0\">protobuf\u662f\u901a\u8fc7Reflection\u8c03\u7528message\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u7684\u3002message\u4e2d\u7684\u65b9\u6cd5\u53ea\u6709\u5bf9\u5404\u4e2a\u5c5e\u6027\u7684get\u548cset\uff0c\u800c\u8c03\u7528message\u7684\u5c5e\u6027\u5176\u5b9e\u4e5f\u5c31\u662f\u8c03\u7528\u5c5e\u6027\u7684get\u3002\u8c03\u7528message\u7684\u67d0\u4e00\u4e2a\u5c5e\u6027\u7684get\uff0c\u5c31\u9700\u8981\u8be5\u5c5e\u6027\u7684Descriptor\uff0c\u901a\u8fc7Reflection\u83b7\u53d6message\u83b7\u53d6\u76f8\u5e94\u7684\u503c\uff1b\u8c03\u7528message\u67d0\u4e00\u5c5e\u6027\u7684set\uff0c\u4e5f\u9700\u8981\u8be5\u5c5e\u6027\u7684Descriptor\uff0c\u901a\u8fc7Reflection\u5c06\u76f8\u5e94\u7684\u503c\u5199\u5165\u5230message\u76f8\u5e94\u7684\u5c5e\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n<p class=\"p0\">\u00a0<img decoding=\"async\" src=\"https:\/\/images0.cnblogs.com\/blog2015\/686182\/201508\/160931461291075.png\" alt=\"\" \/><\/p>\n<p class=\"p0\"><img decoding=\"async\" src=\"https:\/\/images0.cnblogs.com\/blog2015\/686182\/201508\/160931563175296.png\" alt=\"\" \/><\/p>\n<h1>\u53cd\u5c04\u673a\u5236\u7684\u5e94\u7528<\/h1>\n<p class=\"p0\">\u6709\u4e86\u53cd\u5c04\u673a\u5236\uff0c\u53ef\u4ee5\u5199\u5f88\u591a\u5de5\u5177\uff0c\u6bd4\u5982\uff1a\u57fa\u4e8epb\u7684\u81ea\u52a8\u5316\u6d4b\u8bd5\u5de5\u5177\u3001pb\u8f6cjson\u6216xml\u7684\u5de5\u5177\u3001pb\u76f4\u63a5\u5199\u5230\u6570\u636e\u5e93\u7684\u5de5\u5177\u7b49\u3002\u53cd\u5c04\u53ea\u662f\u4e00\u79cd\u673a\u5236\uff0c\u6709\u4ec0\u4e48\u6837\u7684\u5e94\u7528\u573a\u666f\u9700\u8981\u4f60\u7684\u60f3\u8c61\u529b\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u539f\u6587\u5730\u5740 &nbsp; java\u5728\u8fd0\u884c\u72b6<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[119],"class_list":["post-4241","post","type-post","status-publish","format-standard","hentry","tag-03-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/4241","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=4241"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/4241\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=4241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=4241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=4241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}