{"id":57878,"date":"2024-10-10T21:53:29","date_gmt":"2024-10-10T13:53:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57878\/"},"modified":"2024-10-10T21:53:29","modified_gmt":"2024-10-10T13:53:29","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80-inject-%e5%ba%ab%ef%bc%9a%e4%be%9d%e8%b3%b4%e6%b3%a8%e5%85%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57878\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00 inject \u5eab\uff1a\u4f9d\u8cf4\u6ce8\u5165"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80-inject-%e5%ba%ab%ef%bc%9a%e4%be%9d%e8%b3%b4%e6%b3%a8%e5%85%a5-boCpZcvAaE\">GO\u6559\u7a0b: Go \u8a9e\u8a00 inject \u5eab\uff1a\u4f9d\u8cf4\u6ce8\u5165<\/h1>\n<p>\u5728\u73fe\u4ee3\u8edf\u9ad4\u958b\u767c\u4e2d\uff0c\u4f9d\u8cf4\u6ce8\u5165\uff08Dependency Injection, DI\uff09\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u8a2d\u8a08\u6a21\u5f0f\uff0c\u65e8\u5728\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u6e2c\u8a66\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002Go \u8a9e\u8a00\u4f5c\u70ba\u4e00\u7a2e\u975c\u614b\u985e\u578b\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u96d6\u7136\u5176\u8a9e\u6cd5\u7c21\u6f54\uff0c\u4f46\u5728\u5be6\u73fe\u4f9d\u8cf4\u6ce8\u5165\u6642\u4ecd\u7136\u9700\u8981\u4e00\u4e9b\u6280\u5de7\u3002\u672c\u6587\u5c07\u4ecb\u7d39 Go \u8a9e\u8a00\u4e2d\u7684 inject \u5eab\uff0c\u4e26\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u5be6\u73fe\u4f9d\u8cf4\u6ce8\u5165\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%be%9d%e8%b3%b4%e6%b3%a8%e5%85%a5%ef%bc%9f-boCpZcvAaE\">\u4ec0\u9ebc\u662f\u4f9d\u8cf4\u6ce8\u5165\uff1f<\/h2>\n<p>\u4f9d\u8cf4\u6ce8\u5165\u662f\u4e00\u7a2e\u8a2d\u8a08\u6a21\u5f0f\uff0c\u901a\u904e\u5c07\u5c0d\u8c61\u7684\u4f9d\u8cf4\u95dc\u4fc2\u5f9e\u5c0d\u8c61\u5167\u90e8\u8f49\u79fb\u5230\u5916\u90e8\u4f86\u5be6\u73fe\u3002\u9019\u6a23\u53ef\u4ee5\u4f7f\u5c0d\u8c61\u7684\u5275\u5efa\u548c\u7ba1\u7406\u66f4\u52a0\u9748\u6d3b\uff0c\u4e26\u4e14\u6709\u52a9\u65bc\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u6e2c\u8a66\u6027\u3002\u4f9d\u8cf4\u6ce8\u5165\u901a\u5e38\u6709\u4e09\u7a2e\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li><strong>\u69cb\u9020\u51fd\u6578\u6ce8\u5165\uff1a<\/strong>\u901a\u904e\u69cb\u9020\u51fd\u6578\u5c07\u4f9d\u8cf4\u9805\u50b3\u905e\u7d66\u5c0d\u8c61\u3002<\/li>\n<li><strong>\u5c6c\u6027\u6ce8\u5165\uff1a<\/strong>\u901a\u904e\u516c\u5171\u5c6c\u6027\u5c07\u4f9d\u8cf4\u9805\u8a2d\u7f6e\u7d66\u5c0d\u8c61\u3002<\/li>\n<li><strong>\u65b9\u6cd5\u6ce8\u5165\uff1a<\/strong>\u901a\u904e\u65b9\u6cd5\u53c3\u6578\u5c07\u4f9d\u8cf4\u9805\u50b3\u905e\u7d66\u5c0d\u8c61\u3002<\/li>\n<\/ul>\n<h2 id=\"go-%e8%aa%9e%e8%a8%80%e4%b8%ad%e7%9a%84-inject-%e5%ba%ab-boCpZcvAaE\">Go \u8a9e\u8a00\u4e2d\u7684 inject \u5eab<\/h2>\n<p>\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u6709\u591a\u500b\u5eab\u53ef\u4ee5\u5be6\u73fe\u4f9d\u8cf4\u6ce8\u5165\uff0c\u5176\u4e2d <code>inject<\/code> \u5eab\u662f\u4e00\u500b\u6d41\u884c\u7684\u9078\u64c7\u3002\u9019\u500b\u5eab\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u4f9d\u8cf4\u95dc\u4fc2\uff0c\u4e26\u4e14\u652f\u6301\u81ea\u52d5\u6ce8\u5165\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528 <code>inject<\/code> \u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"%e5%ae%89%e8%a3%9d-inject-%e5%ba%ab-boCpZcvAaE\">\u5b89\u88dd inject \u5eab<\/h3>\n<pre><code>go get github.com\/facebookgo\/inject<\/code><\/pre>\n<h3 id=\"%e5%ae%9a%e7%be%a9%e4%be%9d%e8%b3%b4%e9%a0%85-boCpZcvAaE\">\u5b9a\u7fa9\u4f9d\u8cf4\u9805<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u5b9a\u7fa9\u4e00\u4e9b\u4f9d\u8cf4\u9805\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b <code>Database<\/code> \u548c\u4e00\u500b <code>Service<\/code>\uff0c\u5176\u4e2d <code>Service<\/code> \u4f9d\u8cf4\u65bc <code>Database<\/code>\uff1a<\/p>\n<pre><code>type Database struct {\n    \/\/ Database fields\n}\n\ntype Service struct {\n    DB *Database\n}\n<\/code><\/pre>\n<h3 id=\"%e4%bd%bf%e7%94%a8-inject-%e9%80%b2%e8%a1%8c%e4%be%9d%e8%b3%b4%e6%b3%a8%e5%85%a5-boCpZcvAaE\">\u4f7f\u7528 inject \u9032\u884c\u4f9d\u8cf4\u6ce8\u5165<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 <code>inject<\/code> \u5eab\u4f86\u9032\u884c\u4f9d\u8cf4\u6ce8\u5165\uff1a<\/p>\n<pre><code>package main\n\nimport (\n    \"github.com\/facebookgo\/inject\"\n    \"log\"\n)\n\nfunc main() {\n    var g inject.Graph\n\n    db := &amp;Database{}\n    service := &amp;Service{}\n\n    \/\/ \u5c07\u4f9d\u8cf4\u9805\u6dfb\u52a0\u5230\u5716\u4e2d\n    if err := g.Provide(&amp;inject.Object{Value: db}); err != nil {\n        log.Fatal(err)\n    }\n    if err := g.Provide(&amp;inject.Object{Value: service}); err != nil {\n        log.Fatal(err)\n    }\n\n    \/\/ \u81ea\u52d5\u6ce8\u5165\u4f9d\u8cf4\u9805\n    if err := g.Populate(); err != nil {\n        log.Fatal(err)\n    }\n\n    \/\/ \u73fe\u5728 service.DB \u5df2\u7d93\u88ab\u6ce8\u5165\u4e86\n    log.Println(service.DB)\n}\n<\/code><\/pre>\n<h2 id=\"%e4%be%9d%e8%b3%b4%e6%b3%a8%e5%85%a5%e7%9a%84%e5%84%aa%e5%8b%a2-boCpZcvAaE\">\u4f9d\u8cf4\u6ce8\u5165\u7684\u512a\u52e2<\/h2>\n<p>\u4f7f\u7528\u4f9d\u8cf4\u6ce8\u5165\u6709\u591a\u500b\u512a\u52e2\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u53ef\u6e2c\u8a66\u6027\uff1a<\/strong>\u901a\u904e\u5c07\u4f9d\u8cf4\u9805\u6ce8\u5165\uff0c\u53ef\u4ee5\u8f15\u9b06\u5730\u66ff\u63db\u70ba\u6a21\u64ec\u5c0d\u8c61\uff0c\u5f9e\u800c\u9032\u884c\u55ae\u5143\u6e2c\u8a66\u3002<\/li>\n<li><strong>\u964d\u4f4e\u8026\u5408\u5ea6\uff1a<\/strong>\u4f9d\u8cf4\u9805\u4e0d\u518d\u662f\u786c\u7de8\u78bc\u7684\uff0c\u9019\u4f7f\u5f97\u4ee3\u78bc\u66f4\u52a0\u9748\u6d3b\u3002<\/li>\n<li><strong>\u589e\u5f37\u53ef\u7dad\u8b77\u6027\uff1a<\/strong>\u7576\u9700\u8981\u66f4\u6539\u4f9d\u8cf4\u9805\u6642\uff0c\u53ea\u9700\u4fee\u6539\u6ce8\u5165\u7684\u914d\u7f6e\uff0c\u800c\u4e0d\u5fc5\u66f4\u6539\u696d\u52d9\u908f\u8f2f\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-boCpZcvAaE\">\u7e3d\u7d50<\/h2>\n<p>\u4f9d\u8cf4\u6ce8\u5165\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u8a2d\u8a08\u6a21\u5f0f\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8 Go \u8a9e\u8a00\u61c9\u7528\u7a0b\u5e8f\u7684\u53ef\u6e2c\u8a66\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002\u4f7f\u7528 <code>inject<\/code> \u5eab\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u4f9d\u8cf4\u95dc\u4fc2\uff0c\u4e26\u5be6\u73fe\u81ea\u52d5\u6ce8\u5165\u3002\u9019\u4e0d\u50c5\u7c21\u5316\u4e86\u4ee3\u78bc\u7d50\u69cb\uff0c\u9084\u4f7f\u5f97\u6e2c\u8a66\u8b8a\u5f97\u66f4\u52a0\u65b9\u4fbf\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684 Go \u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f\u5176\u4ed6\u5730\u5340\u7684\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 Go \u8a9e\u8a00\u7684 inject \u5eab\uff0c\u5b78\u7fd2\u5982\u4f55\u5be6\u73fe\u4f9d\u8cf4\u6ce8\u5165\uff0c\u63d0\u5347\u4ee3\u78bc\u53ef\u7dad\u8b77\u6027\u8207\u6e2c\u8a66\u6027\uff0c\u7c21\u5316\u958b\u767c\u6d41\u7a0b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57878","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57878","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=57878"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57878\/revisions"}],"predecessor-version":[{"id":57879,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57878\/revisions\/57879"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57878"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57878"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57878"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}