http请求添加recover错误处理
package main import ( "io" "log" "net/http" ) const form = `<html><body><form action="#" method="post" name="bar"> <input type="text" name="in"/> <input type="text" name="in"/> <input type="submit" value="Submit"/> </form></body></html>` func SimpleServer(w http.ResponseWriter, request *http.Request) { io.WriteString(w, "hello, world") panic("test test") } func FormServer(w http.ResponseWriter, request *http.Request) { w.Header().Set("Content-Type", "text/html") switch request.Method { case "GET": io.WriteString(w, form) case "POST": request.ParseForm() io.WriteString(w, request.Form["in"][1]) io.WriteString(w, "\n") io.WriteString(w, request.FormValue("in")) } } func main() { http.HandleFunc("/test1", logPanics(SimpleServer)) http.HandleFunc("/test2", logPanics(FormServer)) if err := http.ListenAndServe(":8088", nil); err != nil { } } //logPanics封装了recover,定义一个即可 func logPanics(handle http.HandlerFunc) http.HandlerFunc { return func(writer http.ResponseWriter, request *http.Request) { defer func() { if x := recover(); x != nil { log.Printf("[%v] caught panic: %v", request.RemoteAddr, x) } }() handle(writer, request) } }