{"id":6574,"date":"2024-09-19T19:37:03","date_gmt":"2024-09-19T11:37:03","guid":{"rendered":"https:\/\/t.n-years.com\/?p=6574"},"modified":"2024-09-19T19:46:19","modified_gmt":"2024-09-19T11:46:19","slug":"go-%e4%b8%ad%e6%af%8f%e4%b8%aa%e8%af%b7%e6%b1%82%e5%af%b9%e5%ba%94%e4%b8%80%e4%b8%aa%e5%8d%8f%e7%a8%8b%e5%9c%a8%e5%93%aa%e9%87%8c%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/t.n-years.com\/?p=6574","title":{"rendered":"Go \u4e2d\u6bcf\u4e2a\u8bf7\u6c42\u5bf9\u5e94\u4e00\u4e2a\u534f\u7a0b\u5728\u54ea\u91cc\u5b9e\u73b0"},"content":{"rendered":"

\u5728 Gin \u6846\u67b6\u4e2d\uff0cServeHTTP<\/code> \u65b9\u6cd5\u672c\u8eab\u5e76\u4e0d\u76f4\u63a5\u542f\u52a8\u65b0\u7684 goroutine\u3002\u5b9e\u9645\u4e0a\uff0cGin \u4f7f\u7528 http.Server<\/code> \u6765\u5904\u7406\u5e76\u53d1\u8bf7\u6c42\uff0c\u800c http.Server<\/code> \u7684 Serve<\/code> \u65b9\u6cd5\u4f1a\u5728\u5185\u90e8\u4e3a\u6bcf\u4e2a\u8bf7\u6c42\u542f\u52a8\u4e00\u4e2a\u65b0\u7684 goroutine\u3002\u5177\u4f53\u6765\u8bf4\uff0cGin \u7684 ServeHTTP<\/code> \u65b9\u6cd5\u4f5c\u4e3a\u8bf7\u6c42\u5904\u7406\u7684\u63a5\u53e3\uff0chttp.Server<\/code> \u5728\u5904\u7406\u8bf7\u6c42\u65f6\u4f1a\u4f7f\u7528\u8be5\u63a5\u53e3\u3002<\/p>\n

\u76f8\u5173\u4ee3\u7801<\/h3>\n

\u4ee5\u4e0b\u662f Gin \u4e2d ServeHTTP<\/code> \u65b9\u6cd5\u7684\u76f8\u5173\u4ee3\u7801\uff0c\u4e3b\u8981\u8d1f\u8d23\u8bf7\u6c42\u7684\u8def\u7531\u548c\u4e2d\u95f4\u4ef6\u5904\u7406\uff1a<\/p>\n

engine.go<\/code> \u6587\u4ef6\u4e2d\u7684 ServeHTTP<\/code> \u65b9\u6cd5<\/strong>\uff1a<\/p>\n

func (engine *Engine) ServeHTTP(w http.ResponseWriter, req *http.Request) {\n    \/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u7684 context\n    c := engine.createContext(w, req)\n\n    \/\/ \u5904\u7406\u8bf7\u6c42\u7684\u4e2d\u95f4\u4ef6\u548c\u6700\u7ec8\u5904\u7406\u5668\n    engine.handleHTTPRequest(c)\n}<\/code><\/pre>\n
handleHTTPRequest<\/code> \u65b9\u6cd5<\/strong>\uff08\u7528\u4e8e\u5904\u7406\u5b9e\u9645\u7684\u8bf7\u6c42\u903b\u8f91\uff09\uff1a<\/p>\n
func (engine *Engine) handleHTTPRequest(c *Context) {\n    \/\/ \u8def\u7531\u5339\u914d\u5e76\u8c03\u7528\u5904\u7406\u5668\n    engine.router.HandleContext(c)\n}<\/code><\/pre>\n
router.go<\/code> \u6587\u4ef6\u4e2d\u7684 HandleContext<\/code> \u65b9\u6cd5<\/strong>\uff1a<\/p>\n
func (r *RouterGroup) HandleContext(c *Context) {\n    \/\/ \u6267\u884c\u4e2d\u95f4\u4ef6\u548c\u5904\u7406\u5668\n    c.Next()  \/\/ \u8fd9\u4f1a\u5728\u4e2d\u95f4\u4ef6\u94fe\u4e2d\u7ee7\u7eed\u5904\u7406\n}<\/code><\/pre>\n
http.Server<\/code> \u7684\u5185\u90e8\u5b9e\u73b0<\/h3>\n
\u5b9e\u9645\u4e0a\uff0chttp.Server<\/code> \u662f Go \u6807\u51c6\u5e93\u4e2d\u5904\u7406 HTTP \u8bf7\u6c42\u7684\u7ec4\u4ef6\uff0c\u5b83\u4f1a\u4e3a\u6bcf\u4e2a\u8bf7\u6c42\u542f\u52a8\u4e00\u4e2a\u65b0\u7684 goroutine\u3002\u5177\u4f53\u6765\u8bf4\uff1a<\/p>\n
    \n
  1. \n
    http.Server<\/code> \u7684 Serve<\/code> \u65b9\u6cd5<\/strong>\uff1a<\/p>\n
    func (srv *Server) Serve(l net.Listener) error {\n   \/\/ \u63a5\u53d7\u8fde\u63a5\u5e76\u4e3a\u6bcf\u4e2a\u8fde\u63a5\u542f\u52a8\u65b0\u7684 goroutine\n   for {\n       conn, err := l.Accept()\n       if err != nil {\n           return err\n       }\n       go srv.handleConn(conn)  \/\/ \u8fd9\u91cc\u542f\u52a8\u65b0\u7684 goroutine\n   }\n}<\/code><\/pre>\n
    \u5728 Serve<\/code> \u65b9\u6cd5\u4e2d\uff0c\u6bcf\u5f53 Accept<\/code> \u63a5\u53d7\u5230\u65b0\u7684\u8fde\u63a5\u65f6\uff0chandleConn<\/code> \u65b9\u6cd5\u4f1a\u5728\u65b0\u7684 goroutine \u4e2d\u5904\u7406\u8fde\u63a5\u3002<\/p>\n<\/li>\n
  2. \n
    handleConn<\/code> \u65b9\u6cd5<\/strong>\uff1a<\/p>\n
    func (srv *Server) handleConn(c net.Conn) {\n   \/\/ \u5904\u7406\u8fde\u63a5\u4e2d\u7684\u8bf7\u6c42\n   \/\/ \u8fd9\u91cc\u4f1a\u8c03\u7528 ServeHTTP\n}<\/code><\/pre>\n<\/li>\n<\/ol>\n
    \u603b\u7ed3<\/h3>\n