Go实现API接口

Go语言,十分方便开发Api接口。而且不需要web服务器就能够实现。
现在想返回指定格式的Api,格式如下

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{
"code": 400,
"data": {},
"message": "非法访问!"
}

code

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package web

import (
"fmt"
"net/http"
"time"
"encoding/json"
)

func main() {
fmt.Print("ready")
http.HandleFunc("/login", loginTask)

err := http.ListenAndServe("localhost:8081", nil)

if err != nil{
fmt.Println("ListanAndServer error: ", err.Error())
}

}

func loginTask(w http.ResponseWriter, req *http.Request){
fmt.Println("loginTash is running...")

time.Sleep(time.Second * 2)

req.ParseForm()
param_userName , found1 := req.Form["username"]
param_password, found2 := req.Form["password"]

if !(found1 && found2) {
fmt.Fprint(w, "请勿非法访问")
return
}
result := newBaseJsonBean()
userName := param_userName[0]
password := param_password[0]

s := "userName:" + userName + ", password:" + password
fmt.Println(s)

if userName == "zhangsan" && password == "123456"{
result.Code = 100
result.Message = "登录成功!"
result.Date = struct {

}{}
} else {
result.Code = 101
result.Message = "密码错误"
result.Date = struct {
}{}
}

bytes, _ := json.Marshal(result)
fmt.Fprint(w, string(bytes))
}


type BaseJsonBean struct{
Code int `json:"code"`
Date interface{} `json:"data"`
Message string `json:"message"`
}

func newBaseJsonBean() *BaseJsonBean{
return &BaseJsonBean{}
}

测试

访问localhost:8081/login,使用post方式
传递参数

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username:zhangsan
password:123456

返回信息

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{
"code": 100,
"data": {},
"message": "登录成功!"
}

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