JSON/XML解析

GF v1.11版本开始,Request对象提供了对客户端提交的JSON/XML数据格式的原生支持,为开发者提供了更便捷的数据获取特性,以进一步提高开发效率。

示例1,简单示例

package main

import (
    "github.com/gogf/gf/frame/g"
    "github.com/gogf/gf/net/ghttp"
)

func main() {
    s := g.Server()
    s.BindHandler("/", func(r *ghttp.Request) {
        r.Response.Writef("name: %v, pass: %v", r.Get("name"), r.Get("pass"))
    })
    s.SetPort(8199)
    s.Run()
}

执行后,我们通过curl工具提交数据来测试一下:

  1. Query数据格式

     $ curl "http://127.0.0.1:8199/?name=john&pass=123"
     name: john, pass: 123
  2. Form表单提交

     $ curl -d "name=john&pass=123" "http://127.0.0.1:8199/"
     name: john, pass: 123
  3. JSON数据格式

     $ curl -d '{"name":"john","pass":"123"}' "http://127.0.0.1:8199/"
     name: john, pass: 123
  4. XML数据格式

     $ curl -d '<?xml version="1.0" encoding="UTF-8"?><doc><name>john</name><pass>123</pass></doc>' "http://127.0.0.1:8199/"
     name: john, pass: 123
    
     $ curl -d '<doc><name>john</name><pass>123</pass></doc>' "http://127.0.0.1:8199/"
     name: john, pass: 123

示例2,对象转换及校验

package main

import (
    "github.com/gogf/gf/frame/g"
    "github.com/gogf/gf/net/ghttp"
    "github.com/gogf/gf/util/gvalid"
)

type RegisterReq struct {
    Name  string `p:"username"  v:"required|length:6,30#请输入账号|账号长度为:min到:max位"`
    Pass  string `p:"password1" v:"required|length:6,30#请输入密码|密码长度不够"`
    Pass2 string `p:"password2" v:"required|length:6,30|same:password1#请确认密码|密码长度不够|两次密码不一致"`
}

type RegisterRes struct {
    Code  int         `json:"code"`
    Error string      `json:"error"`
    Data  interface{} `json:"data"`
}

func main() {
    s := g.Server()
    s.BindHandler("/register", func(r *ghttp.Request) {
        var req *RegisterReq
        if err := r.Parse(&req); err != nil {
            // Validation error.
            if v, ok := err.(*gvalid.Error); ok {
                r.Response.WriteJsonExit(RegisterRes{
                    Code:  1,
                    Error: v.FirstString(),
                })
            }
            // Other error.
            r.Response.WriteJsonExit(RegisterRes{
                Code:  1,
                Error: err.Error(),
            })
        }
        // ...
        r.Response.WriteJsonExit(RegisterRes{
            Data: req,
        })
    })
    s.SetPort(8199)
    s.Run()
}

执行后,我们通过curl工具提交数据来测试一下:

  1. JSON数据格式

     $ curl -d '{"username":"johngcn","password1":"123456","password2":"123456"}' "http://127.0.0.1:8199/register"
     {"code":0,"error":"","data":{"Name":"johngcn","Pass":"123456","Pass2":"123456"}}
    
     $ curl -d '{"username":"johngcn","password1":"123456","password2":"123"}' "http://127.0.0.1:8199/register"
     {"code":1,"error":"两次密码不一致","data":null}

    可以看到,我们提交的JSON内容也被Parse方法智能地转换为了结构体对象。

  2. XML数据格式

     $ curl -d '<?xml version="1.0" encoding="UTF-8"?><doc><username>johngcn</username><password1>123456</password1><password2>123456</password2></doc>' "http://127.0.0.1:8199/register"
     {"code":0,"error":"","data":{"Name":"johngcn","Pass":"123456","Pass2":"123456"}}
    
     $ curl -d '<?xml version="1.0" encoding="UTF-8"?><doc><username>johngcn</username><password1>123456</password1><password2>123</password2></doc>' "http://127.0.0.1:8199/register"
     {"code":1,"error":"两次密码不一致","data":null}

    可以看到,我们提交的XML内容也被Parse方法智能地转换为了结构体对象。

最后编辑: kuteng  文档更新时间: 2021-01-09 18:11   作者:kuteng