{"id":155391,"date":"2020-08-30T12:13:58","date_gmt":"2020-08-30T04:13:58","guid":{"rendered":"http:\/\/4563.org\/?p=155391"},"modified":"2020-09-17T20:18:11","modified_gmt":"2020-09-17T12:18:11","slug":"dubbo-go-%e5%ba%94%e7%94%a8%e7%bb%b4%e5%ba%a6%e6%b3%a8%e5%86%8c%e6%a8%a1%e5%9e%8b","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=155391","title":{"rendered":"Dubbo-go \u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u6a21\u578b"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  Dubbo-go \u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u6a21\u578b               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : dubbogo <\/span>  <span><i><\/i> 7<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>Dubbo 3.0 \u5c06\u81f3\u3002\u5176\u6700\u91cd\u8981\u7684\u4e00\u70b9\u5c31\u662f\u670d\u52a1\u81ea\u7701\uff0c\u5176\u57fa\u7840\u5373\u662f\u5e94\u7528\u7ef4\u5ea6\u7684\u6ce8\u518c\u6a21\u578b\uff0c\u4f5c\u4e3a\u76ee\u524d\u4e0e Dubbo \u5728\u529f\u80fd\u4e0a\u5b8c\u5168\u5bf9\u9f50\u7684 Dubbo-go\uff0c\u5df2\u4e8e \u672c\u5e74 [ 2020 \u5e74] 7 \u6708\u4efd\u53d1\u5e03\u4e86\u5176 v1.5.0 \u7248\u672c\uff0c\u5b9e\u73b0\u4e86\u8be5\u6a21\u578b\uff0c\u4e3a\u5e74\u5e95\u5b9e\u73b0\u4e0e Dubbo 3.0 \u5bf9\u9f50\u7684\u65b0\u7248\u672c\u5960\u5b9a\u4e86\u57fa\u7840\u3002<\/p>\n<p>Dubbo-go \u4f5c\u4e3a Dubbo \u7684 Go \u8bed\u8a00\u7248\u672c\uff0c\u56e0\u8de8\u8bed\u8a00\u4e4b\u6545\uff0c\u4e8c\u8005\u9488\u5bf9\u540c\u4e00\u6a21\u578b\u7684\u5b9e\u73b0\u5fc5\u7136\u6709\u8f83\u5927\u5dee\u5f02\uff0c\u6545\u672c\u6587\u6ce8\u91cd\u8ba8\u8bba Dubbo-go \u793e\u533a\u81ea\u8eab\u5bf9\u8be5\u6a21\u578b\u7684\u7406\u89e3\u548c\u5b9e\u73b0\uff0c\u4ee5\u53ca\u5176\u4e0e Dubbo \u4e4b\u95f4\u7684\u5dee\u5f02\u3002<\/p>\n<h2>1 \u5f15\u8bed<\/h2>\n<p>\u5728 v1.5 \u4ee5\u524d\uff0cDubbo-go \u6ce8\u518c\u6a21\u578b\u90fd\u662f\u4ee5\u670d\u52a1\u4e3a\u7ef4\u5ea6\u7684\uff0c\u76f4\u89c2\u7684\u7406\u89e3\u53ef\u8ba4\u4e3a\u5176\u662f\u63a5\u53e3\u7ef4\u5ea6\u3002\u8b6c\u5982\u6ce8\u518c\u4fe1\u606f\uff0c\u6309\u7167\u670d\u52a1\u7ef4\u5ea6\u6a21\u578b\u5176\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code>\"com.xxx.User\":[   {\"name\":\"instance1\", \"ip\":\"127.0.0.1\", \"metadata\":{\"timeout\":1000}},   {\"name\":\"instance2\", \"ip\":\"127.0.0.2\", \"metadata\":{\"timeout\":2000}},   {\"name\":\"instance3\", \"ip\":\"127.0.0.3\", \"metadata\":{\"timeout\":3000}},  ] <\/code><\/pre>\n<p>\u8fd9\u79cd\u6a21\u5f0f\u7684\u597d\u5904\u662f\u4e0d\u8a00\u800c\u55bb\u7684\uff0c\u7b80\u5355\u76f4\u89c2\uff0c\u63d0\u4f9b\u4e86\u7ec6\u7c92\u5ea6\u7684\u670d\u52a1\u63a7\u5236\u624b\u6bb5\u3002<\/p>\n<p>\u800c\u8fd1\u4e24\u5e74\uff0c\u968f\u7740\u4e91\u65f6\u4ee3\u7684\u5230\u6765\uff0c\u8fd9\u79cd\u6a21\u5f0f\u5c31\u66b4\u9732\u4e86\u4e0d\u8db3\uff1a<\/p>\n<ol>\n<li>\u4e3b\u6d41\u7684\u6ce8\u518c\u6a21\u578b\u90fd\u662f\u5e94\u7528\u7ef4\u5ea6\u7684\uff1b<\/li>\n<li>\u4ee5\u670d\u52a1\u7ef4\u5ea6\u6765\u6ce8\u518c\uff0c\u90a3\u4e48\u89c4\u6a21\u4e0e\u670d\u52a1\u6570\u91cf\u6210\u6b63\u6bd4\uff0c\u5927\u89c4\u6a21\u96c6\u7fa4\u4e4b\u4e0b\uff0c\u6ce8\u518c\u4e2d\u5fc3\u538b\u529b\u975e\u5e38\u5927\uff1b<\/li>\n<\/ol>\n<h2>2 Dubbo-go v1.5.0 \u7684\u65b0\u6ce8\u518c\u6a21\u578b<\/h2>\n<p>\u8fd9\u6b21 Dubbo-go \u652f\u6301\u4e86\u65b0\u7684\u6ce8\u518c\u6a21\u578b\uff0c\u4e5f\u5c31\u662f\u5e94\u7528\u7ef4\u5ea6\u7684\u6ce8\u518c\u6a21\u578b\u3002\u7b80\u5355\u800c\u8a00\uff0c\u5728\u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u4e0b\uff0c\u5176\u6ce8\u518c\u4fe1\u606f\u7c7b\u4f3c\uff1a<\/p>\n<pre><code>\"application1\": [   {\"name\":\"instance1\", \"ip\":\"127.0.0.1\", \"metadata\":{}},   {\"name\":\"instance2\", \"ip\":\"127.0.0.2\", \"metadata\":{}},   {\"name\":\"instanceN\", \"ip\":\"127.0.0.3\", \"metadata\":{}} ] <\/code><\/pre>\n<p>\u5728\u6b64\u6a21\u5f0f\u4e4b\u4e0b\uff0c\u53ef\u4ee5\u770b\u5230\u6ce8\u518c\u4fe1\u606f\u5c06\u4f1a\u5927\u5e45\u5ea6\u51cf\u5c11\uff0c\u96c6\u7fa4\u89c4\u6a21\u53ea\u4e0e\u5b9e\u4f8b\u6570\u91cf\u76f8\u5173\u3002<\/p>\n<p>\u4e0e\u6b64\u540c\u65f6\uff0c\u5728\u5b9e\u73b0\u8fd9\u4e00\u4e2a\u529f\u80fd\u7684\u65f6\u5019\uff0cDubbo-go \u8fd8\u5e0c\u671b\u4fdd\u6301\u4e24\u4e2a\u76ee\u6807\uff1a<\/p>\n<ol>\n<li>\u5bf9\u7528\u6237\u5b8c\u5168\u517c\u5bb9\uff0c\u7528\u6237\u8fc1\u79fb\u65e0\u611f\u77e5\uff1b<\/li>\n<li>\u4fdd\u6301\u4f4f\u539f\u672c\u670d\u52a1\u7c92\u5ea6\u4e0a\u7cbe\u7ec6\u63a7\u5236\u7684\u80fd\u529b\u2014\u2014\u5373\u4fdd\u7559\u73b0\u6709\u7684\u670d\u52a1\u7ef4\u5ea6\u7684\u5143\u6570\u636e\uff1b<\/li>\n<\/ol>\n<p>\u56e0\u6b64 Dubbo-go \u8981\u7740\u529b\u89e3\u51b3\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ol>\n<li>\u76ee\u524d Consumer \u7684\u914d\u7f6e\u662f\u4ee5\u63a5\u53e3\u4e3a\u51c6\u7684\uff0c\u5982\u4f55\u6839\u636e\u63a5\u53e3\u627e\u5230\u8be5\u63a5\u53e3\u5bf9\u5e94\u7684\u5e94\u7528\uff1f\u4f8b\u5982\uff0c\u7528\u6237\u914d\u7f6e\u4e86 <code>com.xxx.User<\/code> \u670d\u52a1\uff0c\u90a3\u4e48\uff0cDubbo-go \u600e\u4e48\u77e5\u9053\u8fd9\u4e2a\u670d\u52a1\u662f\u7531\u54ea\u4e2a\u5e94\u7528\u6765\u63d0\u4f9b\u7684\u5462\uff1f<\/li>\n<li>\u5728\u77e5\u9053\u4e86\u662f\u54ea\u4e2a\u5e94\u7528\u4e4b\u540e\uff0c\u53ef\u4ee5\u4ece\u6ce8\u518c\u4e2d\u5fc3\u62ff\u5230\u5e94\u7528\u7684\u6ce8\u518c\u4fe1\u606f\uff0c\u5982\u5b9e\u4f8b\u4fe1\u606f\u7b49\uff1b\u90a3\u600e\u4e48\u77e5\u9053 <code>com.xxx.User<\/code> \u670d\u52a1\u81ea\u8eab\u7684\u5143\u6570\u636e\u5462\uff1f<\/li>\n<\/ol>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e24\u4e2a\u95ee\u9898\uff0c\u5728\u5df2\u6709\u7684\u6ce8\u518c\u6a21\u578b\u7684\u57fa\u7840\u4e0a\uff0cDubbo-go \u5f15\u5165\u4e24\u4e2a\u989d\u5916\u7684\u7ec4\u4ef6\uff1aServiceNameMapping \u548c MetadataService \u3002<\/p>\n<p>\u524d\u8005\u7528\u4e8e\u89e3\u51b3\u670d\u52a1-\u5e94\u7528\u4e4b\u95f4\u7684\u6620\u5c04\uff0c\u540e\u8005\u7528\u4e8e\u83b7\u53d6\u670d\u52a1\u7684\u5143\u6570\u636e\u3002<\/p>\n<p>\u7531\u6b64\uff0cDubbo-go \u7684\u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u6a21\u578b\u5c31\u53d8\u4e3a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/09\/1595053608806-be43aed1-83b4-4a05-8d25-60a0c7fa5445.pngalignleftampdisplayinlineampheight463ampmarginobject-Objectampnameimage.pngamporiginHeight926amporiginWidth1686ampsize1681951ampstatusdoneampstylenoneampwidth843.png\" alt=\"Dubbo-go \u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u6a21\u578b\" \/><\/p>\n<h3>2.1 ServiceNameMapping<\/h3>\n<p>ServiceNameMapping \u5e76\u4e0d\u590d\u6742\u3002\u8003\u8651\u5230\u4e00\u822c\u4eba\u5728 Consumer \u4fa7\u60f3\u8981\u8c03\u7528\u4e00\u4e2a\u670d\u52a1\uff0c\u5176\u5341\u6709\u516b\u4e5d\u662f\u77e5\u9053\u8fd9\u4e2a\u670d\u52a1\u662f\u54ea\u4e2a\u5e94\u7528\u63d0\u4f9b\u7684\uff0c\u4e8e\u662f Dubbo-go \u5f15\u5165\u4e86\u65b0\u7684\u914d\u7f6e\u9879 <code>provideBy<\/code><\/p>\n<p><img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/09\/1595053875208-40147b45-16ef-4138-b824-28c6a05499ce.pngalignleftampdisplayinlineampheight301ampmarginobject-Objectampnameimage.pngamporiginHeight601amporiginWidth1119ampsize163966ampstatusdoneampstylenoneampwidth559.5.png\" alt=\"Dubbo-go \u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u6a21\u578b\" \/><\/p>\n<p>\u5f53\u7136\uff0c\u6240\u8c13 \u201c\u5341\u6709\u516b\u4e5d\u201d\u5c31\u662f\u8bf4\u6709\u4e9b\u65f6\u5019\u786e\u5b9e\u4e0d\u77e5\u9053\u662f\u670d\u52a1\u662f\u8c01\u63d0\u4f9b\u7684\uff0c\u6240\u4ee5 Dubbo-go \u8fd8\u652f\u6301\u4e86\u57fa\u4e8e\u914d\u7f6e\u4e2d\u5fc3\u7684 ServiceNameMapping \u5b9e\u73b0\u3002Dubbo-go \u4f1a\u7528\u670d\u52a1\u540d\u4f5c\u4e3a Key \u4ece\u914d\u7f6e\u4e2d\u5fc3\u91cc\u9762\u8bfb\u51fa\u5bf9\u5e94\u7684\u5e94\u7528\u540d\u3002\u8fd9\u610f\u5473\u7740, Provider \u542f\u52a8\u7684\u65f6\u5019\uff0c\u4e5f\u4f1a\u5728\u914d\u7f6e\u4e2d\u5fc3\u5c06\u81ea\u8eab\u7684 \u670d\u52a1-\u5e94\u7528\u540d\u6620\u5c04 \u5199\u5165\u914d\u7f6e\u4e2d\u5fc3\u3002<\/p>\n<h3>2.2 MetadataService<\/h3>\n<p>MetadataService \u7a0d\u5fae\u8981\u590d\u6742\u4e00\u70b9\uff0c\u6709 <code>remote<\/code> \u548c <code>local<\/code> \u4e24\u79cd\u6a21\u5f0f\u3002<\/p>\n<p>\u7c7b\u4f3c\u4e8e\u524d\u9762\u7684 ServiceNameMapping\uff0cDubbo-go \u63d0\u4f9b\u4e86\u57fa\u4e8e\u914d\u7f6e\u4e2d\u5fc3\u7684 MetadataService \u7684\u5b9e\u73b0\uff0c\u5373 <code>remote<\/code> \u6a21\u5f0f\u3002Provider \u542f\u52a8\u7684\u65f6\u5019\uff0c\u5c31\u4f1a\u5c06\u670d\u52a1\u7684\u5143\u6570\u636e\u5199\u8fdb\u53bb\u3002<\/p>\n<p>\u53e6\u5916\u4e00\u79cd\u6a21\u5f0f\u662f <code>local<\/code> \u6a21\u5f0f\u3002Dubbo-go \u53ef\u4ee5\u76f4\u63a5\u5c06 MetadataService \u770b\u505a\u662f\u4e00\u4e2a\u666e\u901a\u7684\u5fae\u670d\u52a1\uff0c\u800c\u540e\u7531 <code>Provider<\/code> \u6240\u63d0\u4f9b\u3002\u7c7b\u4f3c\u4e8e\uff1a <img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/09\/1595054277998-cc79212f-e900-41fa-82d3-cf9a1dfddaa3.pngalignleftampdisplayinlineampheight445ampmarginobject-Objectampnameimage.pngamporiginHeight890amporiginWidth1840ampsize1699844ampstatusdoneampstylenoneampwidth920.png\" alt=\"Dubbo-go \u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u6a21\u578b\" \/><\/p>\n<p>\u7531\u6b64\u5e26\u6765\u4e00\u4e2a\u95ee\u9898\uff1a \u65e2\u7136 Dubbo-go \u5c06 MetadataService \u770b\u505a\u662f\u4e00\u4e2a\u666e\u901a\u7684\u670d\u52a1\uff0c\u90a3\u4e48 MetadataService \u7684\u5143\u6570\u636e\uff0cConsumer \u8be5\u600e\u4e48\u83b7\u5f97\u5462\uff1f\u8fd9\u662f\u4e00\u4e2a\u5178\u578b\u7684\u9e21\u751f\u86cb\u86cb\u751f\u9e21\u7684\u95ee\u9898\u3002<\/p>\n<p>Dubbo-go \u7684\u65b9\u6848\u975e\u5e38\u7b80\u5355\u7c97\u66b4\uff0cProvider \u542f\u52a8\u7684\u65f6\u5019\uff0c\u4e0d\u4ec5\u4ec5\u5f80\u6ce8\u518c\u4e2d\u5fc3\u91cc\u9762\u5199\u5165\u5e94\u7528\u672c\u8eab\u7684\u4fe1\u606f\uff0c\u8fd8\u8981\u628a\u5b83\u7684 MetadataService \u4fe1\u606f\u5199\u5165\u3002<\/p>\n<p>\u8fd9\u662f\u4e00\u4e2a\u5e94\u7528\u7684\u6ce8\u518c\u4fe1\u606f\uff1a <img decoding=\"async\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2020\/09\/1599816858358-e6722825-a117-4b66-aff1-dbc4847d02b9.pngalignleftampdisplayinlineampheight332ampmarginobject-Objectampnameimage.pngamporiginHeight332amporiginWidth922ampsize55713ampstatusdoneampstylenoneampwidth922.png\" alt=\"Dubbo-go \u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u6a21\u578b\" \/><\/p>\n<p>\u672c\u8d28\u4e0a\u6765\u8bf4\uff0c\u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\u4fe1\u606f + \u670d\u52a1\u5143\u6570\u636e = \u670d\u52a1\u7ef4\u5ea6\u6ce8\u518c\u4fe1\u606f\u3002\u6216\u8005\u8bf4\uff0c\u5e94\u7528\u7ef4\u5ea6\u6ce8\u518c\uff0c\u53ea\u662f\u4e00\u79cd\u91cd\u65b0\u7ec4\u7ec7\u8fd9\u4e9b\u4fe1\u606f\u7684\u65b9\u5f0f\u3002<\/p>\n<h2>3 \u5dee\u5f02\u4e0e\u6539\u8fdb<\/h2>\n<p>Dubbo-go v1.5.x \u5bf9\u6807 Dubbo 2.7.5\uff0c\u53ef\u4ee5\u8ba4\u4e3a\u662f\u53c2\u7167 Dubbo 2.7.5 \u76f4\u63a5\u5b9e\u73b0\u5176 Go \u6e90\u7801\uff0c\u4f46\u662f\u8003\u8651\u5230 Java \u548c Go \u4e4b\u95f4\u7684\u8bed\u8a00\u5dee\u5f02\uff0c\u5bfc\u81f4\u4e8c\u8005\u4e4b\u95f4\u7684\u5b9e\u73b0\u4e0d\u53ef\u80fd\u5b8c\u5168\u5bf9\u7b49\u3002<\/p>\n<h3>3.1 \u4fee\u8ba2\u7248\u672c\u53f7 revision \u6bd4\u5bf9<\/h3>\n<p>Dubbo v2.7.x \u5728 MetadataService \u6ce8\u518c\u65f6\uff0c\u4f1a\u5bf9\u5176 provider \u5e94\u7528\u7684\u6240\u6709\u670d\u52a1\u63a5\u53e3\u7684 hash \u503c\u505a\u4e3a\u4fee\u8ba2\u7248\u672c\u53f7\u5199\u5165\u5143\u6570\u636e\u4e2d\u5fc3\uff0c\u6b64 revision \u662f\u5bf9\u6240\u6709\u63a5\u53e3\u7684\u65b9\u6cd5\u4ee5\u53ca\u5176\u53c2\u6570\u603b\u4f53\u7684\u8ba1\u7b97\u7ed3\u679c\u3002\u5176\u76ee\u7684\u662f\u51cf\u5c11 consumer \u7aef\u5230\u6ce8\u518c\u4e2d\u5fc3\u7684\u62c9\u53d6\u6b21\u6570\u3002<\/p>\n<p>\u5728 Go \u4e2d\u7528\u7684\u8ba1\u7b97 revision \u7684 hash \u7b97\u6cd5\u4e0e Java \u662f\u4e0d\u4e00\u81f4\u7684\uff0c\u800c\u4e14 Go \u4e0e Java \u7684\u65b9\u6cd5\u7b7e\u540d\u4fe1\u606f\u662f\u4e0d\u76f8\u540c\u7684\uff0c\u6240\u4ee5\u8ba1\u7b97\u51fa\u6765\u7684 hash \u503c\u4e00\u5b9a\u662f\u4e0d\u4e00\u6837\u7684\u3002<\/p>\n<p>\u6b64\u4e0d\u4e00\u81f4\u4f1a\u5bfc\u81f4\u5982\u679c Go \u5e94\u7528\u548c Java \u5e94\u7528\u540c\u65f6\u53d1\u5e03\u540c\u4e00\u4e2a\u670d\u52a1\u7684\u65f6\u5019\uff0cGo \u670d\u52a1\u548c Java \u670d\u52a1\u7684\u4fee\u8ba2\u7248\u672c\u53f7\u5fc5\u5b9a\u662f\u4e0d\u76f8\u540c\u7684\uff0cConsumer 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