1. 表单参数

  • 表单传输为post请求，http常见的传输格式为四种：
    • application/json
    • application/x-www-form-urlencoded
    • application/xml
    • multipart/form-data
  • 表单参数可以通过PostForm()方法获取，该方法默认解析的是x-www-form-urlencoded或from-data格式的参数 
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4.     <meta charset="UTF-8">
  5.     <meta name="viewport" content="width=device-width, initial-scale=1.0">
  6.     <meta http-equiv="X-UA-Compatible" content="ie=edge">
  7.     <title>Document</title>
  8. </head>
  9. <body>
  10.     <form action="http://localhost:8080/form" method="post" action="application/x-www-form-urlencoded">
  11.         用户名：<input type="text" name="username" placeholder="请输入你的用户名">  <br>
  12.         密&nbsp;&nbsp;&nbsp;码：<input type="password" name="userpassword" placeholder="请输入你的密码">  <br>
  13.         <input type="submit" value="提交">
  14.     </form>
  15. </body>
  16. </html>
  1. package main
  3. //
  4. import (
  5.     "fmt"
  6.     "net/http"
  8.     "github.com/gin-gonic/gin"
  9. )
  11. func main() {
  12.     r := gin.Default()
  13.     r.POST("/form", func(c *gin.Context) {
  14.         types := c.DefaultPostForm("type", "post")
  15.         username := c.PostForm("username")
  16.         password := c.PostForm("userpassword")
  17.         // c.String(http.StatusOK, fmt.Sprintf("username:%s,password:%s,type:%s", username, password, types))
  18.         c.String(http.StatusOK, fmt.Sprintf("username:%s,password:%s,type:%s", username, password, types))
  19.     })
  20.     r.Run()
  21. }

输出结果：

表单参数 - 图1

表单参数 - 图2