{"id":981,"date":"2025-01-16T00:33:13","date_gmt":"2025-01-15T16:33:13","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=981"},"modified":"2025-01-16T00:33:13","modified_gmt":"2025-01-15T16:33:13","slug":"go-%e8%af%ad%e8%a8%80%e4%be%9d%e8%b5%96%e6%b3%a8%e5%85%a5%e6%95%99%e7%a8%8b%ef%bc%9a%e5%bf%ab%e9%80%9f%e5%ae%9e%e7%8e%b0%e4%be%9d%e8%b5%96%e6%b3%a8%e5%85%a5%e6%a8%a1%e5%bc%8f%e5%b9%b6%e4%bc%98","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/01\/16\/go-%e8%af%ad%e8%a8%80%e4%be%9d%e8%b5%96%e6%b3%a8%e5%85%a5%e6%95%99%e7%a8%8b%ef%bc%9a%e5%bf%ab%e9%80%9f%e5%ae%9e%e7%8e%b0%e4%be%9d%e8%b5%96%e6%b3%a8%e5%85%a5%e6%a8%a1%e5%bc%8f%e5%b9%b6%e4%bc%98\/","title":{"rendered":"Go \u8bed\u8a00\u4f9d\u8d56\u6ce8\u5165\u6559\u7a0b\uff1a\u5feb\u901f\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165\u6a21\u5f0f\u5e76\u4f18\u5316\u4ee3\u7801\u89e3\u8026"},"content":{"rendered":"\n
\n

\u5728\u73b0\u4ee3\u8f6f\u4ef6\u5f00\u53d1\u4e2d\uff0c\u4f9d\u8d56\u6ce8\u5165<\/strong>\uff08Dependency Injection\uff0c\u7b80\u79f0 DI\uff09\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5b83\u5e2e\u52a9\u5f00\u53d1\u8005\u7ba1\u7406\u548c\u89e3\u8026\u7a0b\u5e8f\u4e2d\u7684\u5bf9\u8c61\u4f9d\u8d56\u3002Go \u8bed\u8a00\u4f5c\u4e3a\u4e00\u95e8\u7b80\u6d01\u4e14\u9ad8\u6548\u7684\u8bed\u8a00\uff0c\u5728\u539f\u751f\u5e76\u672a\u76f4\u63a5\u63d0\u4f9b\u50cf Spring \u6216\u5176\u4ed6\u6846\u67b6\u4e2d\u7684 DI \u5bb9\u5668\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u65b9\u5f0f\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165\u3002<\/p>\n<\/blockquote>\n\n\n\n

\u672c\u6559\u7a0b\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728 Go \u4e2d\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165\uff0c\u5e76\u5c55\u793a\u5982\u4f55\u901a\u8fc7\u624b\u52a8\u6ce8\u5165\u4f9d\u8d56\u6765\u7ba1\u7406\u670d\u52a1\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n\n\n\n

\n\n\n\n

\u4ec0\u4e48\u662f\u4f9d\u8d56\u6ce8\u5165\uff1f<\/h3>\n\n\n\n

\u4f9d\u8d56\u6ce8\u5165\u662f\u6307\u5c06\u7c7b\uff08\u6216\u7ed3\u6784\u4f53\uff09\u4f9d\u8d56\u7684\u5bf9\u8c61\u4f20\u9012\u7ed9\u7c7b\uff0c\u800c\u4e0d\u662f\u5728\u7c7b\u5185\u90e8\u76f4\u63a5\u521b\u5efa\u4f9d\u8d56\u7684\u5bf9\u8c61\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u6d4b\u8bd5\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u56e0\u4e3a\u4f9d\u8d56\u7684\u5bf9\u8c61\u53ef\u4ee5\u5728\u5916\u90e8\u63a7\u5236\u548c\u66ff\u6362\u3002<\/p>\n\n\n\n

1. \u624b\u52a8\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165<\/h3>\n\n\n\n

Go \u662f\u4e00\u79cd\u975e\u5e38\u7b80\u6d01\u7684\u8bed\u8a00\uff0c\u6ca1\u6709\u590d\u6742\u7684 DI \u6846\u67b6\u3002\u6700\u5e38\u89c1\u7684\u5b9e\u73b0\u65b9\u5f0f\u662f\u901a\u8fc7\u6784\u9020\u51fd\u6570\u6216\u65b9\u6cd5\u6765\u663e\u5f0f\u5730\u4f20\u9012\u4f9d\u8d56\u3002<\/p>\n\n\n\n

1.1 \u7b80\u5355\u793a\u4f8b\uff1a\u4f9d\u8d56\u6ce8\u5165<\/strong><\/h4>\n\n\n\n

\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u7b80\u5355\u7684\u5e94\u7528\uff0c\u91cc\u9762\u5305\u542b UserService<\/code> \u548c UserRepository<\/code>\u3002UserService<\/code> \u9700\u8981\u4f9d\u8d56 UserRepository<\/code> \u6765\u8fdb\u884c\u6570\u636e\u5b58\u50a8\u64cd\u4f5c\u3002<\/p>\n\n\n\n

package main\n\nimport \"fmt\"\n\n\/\/ UserRepository \u662f\u6570\u636e\u5e93\u64cd\u4f5c\u63a5\u53e3\ntype UserRepository interface {\n    Save(user string) error\n}\n\n\/\/ UserRepositoryImpl \u662f UserRepository \u7684\u5177\u4f53\u5b9e\u73b0\ntype UserRepositoryImpl struct {}\n\nfunc (r *UserRepositoryImpl) Save(user string) error {\n    fmt.Printf(\"Saving user: %s\\n\", user)\n    return nil\n}\n\n\/\/ UserService \u662f\u4f9d\u8d56 UserRepository \u7684\u670d\u52a1\ntype UserService struct {\n    repo UserRepository\n}\n\n\/\/ \u6784\u9020\u51fd\u6570\u6ce8\u5165\nfunc NewUserService(repo UserRepository) *UserService {\n    return &UserService{repo: repo}\n}\n\nfunc (s *UserService) CreateUser(user string) error {\n    return s.repo.Save(user)\n}\n\nfunc main() {\n    \/\/ \u521b\u5efa\u5177\u4f53\u7684\u4f9d\u8d56\n    repo := &UserRepositoryImpl{}\n\n    \/\/ \u901a\u8fc7\u6784\u9020\u51fd\u6570\u6ce8\u5165\u4f9d\u8d56\n    service := NewUserService(repo)\n\n    \/\/ \u4f7f\u7528\u670d\u52a1\n    if err := service.CreateUser(\"Alice\"); err != nil {\n        fmt.Println(\"Error:\", err)\n    }\n}<\/code><\/pre>\n\n\n\n
\u89e3\u91ca\uff1a<\/h4>\n\n\n\n
    \n
  1. \u63a5\u53e3\u4e0e\u5b9e\u73b0<\/strong>\uff1aUserRepository<\/code> \u662f\u4e00\u4e2a\u63a5\u53e3\uff0cUserRepositoryImpl<\/code> \u662f\u5176\u5177\u4f53\u5b9e\u73b0\u3002<\/li>\n\n\n\n
  2. \u6784\u9020\u51fd\u6570\u6ce8\u5165<\/strong>\uff1aNewUserService<\/code> \u662f\u4e00\u4e2a\u5de5\u5382\u51fd\u6570\uff0c\u5b83\u5c06 UserRepository<\/code> \u5b9e\u4f8b\u4f20\u9012\u7ed9 UserService<\/code>\uff0c\u4ece\u800c\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165\u3002<\/li>\n\n\n\n
  3. \u4f7f\u7528\u6ce8\u5165<\/strong>\uff1a\u5728 main<\/code> \u51fd\u6570\u4e2d\uff0c\u5148\u521b\u5efa\u4e86 UserRepositoryImpl<\/code> \u7684\u5b9e\u4f8b\uff0c\u5e76\u901a\u8fc7\u6784\u9020\u51fd\u6570\u5c06\u5176\u6ce8\u5165\u5230 UserService<\/code> \u4e2d\u3002<\/li>\n<\/ol>\n\n\n\n
    \u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0cUserService<\/code> \u4e0d\u518d\u76f4\u63a5\u4f9d\u8d56 UserRepositoryImpl<\/code>\uff0c\u5b83\u4f9d\u8d56\u7684\u662f UserRepository<\/code> \u63a5\u53e3\uff0c\u8fd9\u6837\u505a\u7684\u597d\u5904\u662f\u53ef\u4ee5\u8f7b\u677e\u66ff\u6362 UserRepository<\/code> \u7684\u5b9e\u73b0\uff08\u4f8b\u5982\u5207\u6362\u6570\u636e\u5e93\u6216 mock \u6d4b\u8bd5\uff09\u3002<\/p>\n\n\n\n
    2. \u4f7f\u7528\u7b2c\u4e09\u65b9\u5e93\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165<\/h3>\n\n\n\n
    \u867d\u7136 Go \u8bed\u8a00\u6ca1\u6709\u5185\u5efa DI \u5bb9\u5668\uff0c\u4f46\u793e\u533a\u4e2d\u6709\u4e00\u4e9b\u7b2c\u4e09\u65b9\u5e93\u5b9e\u73b0\u4e86\u7c7b\u4f3c\u529f\u80fd\uff0c\u5e2e\u52a9\u66f4\u7075\u6d3b\u5730\u7ba1\u7406\u4f9d\u8d56\u5173\u7cfb\u3002\u8fd9\u4e9b\u5e93\u901a\u5e38\u63d0\u4f9b\u4e86 DI \u5bb9\u5668\uff0c\u7528\u4e8e\u81ea\u52a8\u5316\u7ba1\u7406\u548c\u6ce8\u5165\u4f9d\u8d56\u3002<\/p>\n\n\n\n
    2.1 \u4f7f\u7528 google\/wire<\/code> \u5e93<\/strong><\/h4>\n\n\n\n
    google\/wire<\/code> \u662f Go \u5b98\u65b9\u63d0\u4f9b\u7684\u4f9d\u8d56\u6ce8\u5165\u5de5\u5177\uff0c\u5b83\u53ef\u4ee5\u901a\u8fc7\u751f\u6210\u4ee3\u7801\u6765\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 wire<\/code> \u6765\u7ba1\u7406\u4f9d\u8d56\u3002<\/p>\n\n\n\n
    \u5b89\u88c5 wire\uff1a<\/strong><\/p>\n\n\n\n
    go get github.com\/google\/wire<\/code><\/pre>\n\n\n\n
    \u4f7f\u7528 wire \u751f\u6210\u4f9d\u8d56\u6ce8\u5165\u4ee3\u7801\uff1a<\/strong><\/p>\n\n\n\n
    package main\n\nimport (\n    \"fmt\"\n    \"github.com\/google\/wire\"\n)\n\ntype UserRepository interface {\n    Save(user string) error\n}\n\ntype UserRepositoryImpl struct{}\n\nfunc (r *UserRepositoryImpl) Save(user string) error {\n    fmt.Printf(\"Saving user: %s\\n\", user)\n    return nil\n}\n\ntype UserService struct {\n    repo UserRepository\n}\n\nfunc NewUserService(repo UserRepository) *UserService {\n    return &UserService{repo: repo}\n}\n\nfunc NewUserRepository() UserRepository {\n    return &UserRepositoryImpl{}\n}\n\n\/\/ Wire Set\nvar Set = wire.NewSet(NewUserService, NewUserRepository)\n\nfunc main() {\n    wire.Build(Set)\n    var userService *UserService\n    userService.CreateUser(\"Alice\")\n}<\/code><\/pre>\n\n\n\n
    \u89e3\u91ca\uff1a<\/h4>\n\n\n\n
      \n
    • wire.NewSet<\/strong>\uff1awire.NewSet<\/code> \u7528\u4e8e\u5c06\u6240\u6709\u9700\u8981\u7684\u4f9d\u8d56\u5173\u7cfb\u6ce8\u518c\u5230 DI \u5bb9\u5668\u4e2d\u3002\u5728 main<\/code> \u51fd\u6570\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7 wire.Build(Set)<\/code> \u6765\u81ea\u52a8\u6ce8\u5165\u4f9d\u8d56\u3002<\/li>\n\n\n\n
    • \u81ea\u52a8\u751f\u6210\u4ee3\u7801<\/strong>\uff1a\u4f7f\u7528 wire<\/code> \u65f6\uff0c\u5b83\u4f1a\u751f\u6210\u4e00\u4e2a\u540d\u4e3a wire_gen.go<\/code> \u7684\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542b\u4f9d\u8d56\u6ce8\u5165\u6240\u9700\u7684\u4ee3\u7801\u3002<\/li>\n<\/ul>\n\n\n\n
      \u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6765\u751f\u6210\u4ee3\u7801\uff1a<\/p>\n\n\n\n
      go run github.com\/google\/wire\/cmd\/wire<\/code><\/pre>\n\n\n\n
      \u751f\u6210\u7684\u4ee3\u7801\u4f1a\u81ea\u52a8\u5904\u7406\u4f9d\u8d56\u6ce8\u5165\uff0c\u8ba9\u4f60\u53ef\u4ee5\u8f7b\u677e\u6ce8\u5165\u670d\u52a1\u548c\u4f9d\u8d56\u3002<\/p>\n\n\n\n
      3. \u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u4f9d\u8d56\u6ce8\u5165\uff1f<\/h3>\n\n\n\n
        \n
      1. \u89e3\u8026<\/strong>\uff1a\u4f9d\u8d56\u6ce8\u5165\u8ba9\u7ec4\u4ef6\u4e4b\u95f4\u7684\u8026\u5408\u5173\u7cfb\u53d8\u5f97\u677e\u6563\uff0c\u5141\u8bb8\u66f4\u7075\u6d3b\u7684\u8bbe\u8ba1\u3002\u4f8b\u5982\uff0c\u4f60\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u4e1a\u52a1\u903b\u8f91\u7684\u60c5\u51b5\u4e0b\u5207\u6362\u6570\u636e\u5e93\u3001\u65e5\u5fd7\u5e93\u7b49\u4f9d\u8d56\u3002<\/li>\n\n\n\n
      2. \u53ef\u6d4b\u8bd5\u6027<\/strong>\uff1a\u901a\u8fc7\u4f9d\u8d56\u6ce8\u5165\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5728\u6d4b\u8bd5\u4e2d\u66ff\u6362\u4f9d\u8d56\u5bf9\u8c61\uff0c\u6a21\u62df\u4e0d\u540c\u7684\u60c5\u5883\u3002<\/li>\n\n\n\n
      3. \u53ef\u7ef4\u62a4\u6027<\/strong>\uff1a\u968f\u7740\u9879\u76ee\u7684\u590d\u6742\u5ea6\u589e\u52a0\uff0c\u4f9d\u8d56\u6ce8\u5165\u80fd\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7ba1\u7406\u4e0d\u540c\u670d\u52a1\u548c\u7ec4\u4ef6\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002<\/li>\n<\/ol>\n\n\n\n
        \n\n\n\n
        4. \u603b\u7ed3<\/h3>\n\n\n\n
          \n
        • \u624b\u52a8\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165<\/strong>\uff1a\u901a\u8fc7\u6784\u9020\u51fd\u6570\u6216\u65b9\u6cd5\u663e\u5f0f\u5730\u6ce8\u5165\u4f9d\u8d56\u3002<\/li>\n\n\n\n
        • \u4f7f\u7528 google\/wire<\/code> \u7b49\u7b2c\u4e09\u65b9\u5e93<\/strong>\uff1a\u901a\u8fc7\u81ea\u52a8\u751f\u6210\u4ee3\u7801\u7684\u65b9\u5f0f\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165\u3002<\/li>\n\n\n\n
        • \u4f9d\u8d56\u6ce8\u5165\u7684\u4f18\u52bf<\/strong>\uff1a\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u7ef4\u62a4\u6027\u3001\u53ef\u6d4b\u8bd5\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
          \u5728\u73b0\u4ee3\u8f6f\u4ef6\u5f00\u53d1\u4e2d\uff0c\u4f9d\u8d56\u6ce8\u5165\uff08Dependency Injection\uff0c\u7b80\u79f0 DI\uff09\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5b83\u5e2e\u52a9 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-981","post","type-post","status-publish","format-standard","hentry","category-golang"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=981"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/981\/revisions"}],"predecessor-version":[{"id":982,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/981\/revisions\/982"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}