gin获取表单from中的数据
模拟简单登录页面：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>login</title>
</head>
<body>
<form action="/login" method="post">
<div>
<label for="username">username:</label>
<input type="text" name="username" id="username">
</div>
<div>
<label for="password">password:</label>
<input type="text" name="password" id="password">
</div>
<div>
//当submit被点击以后，会向服务端发送请求，发送方式为post
<input type="submit" value="登录">
</div>
</form>
</body>
</html>对于POST的返回页面：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>index</title>
</head>
<body>
<h1>Hello , {{ .Name }}!</h1>
<h1>你的密码是 ： {{ .Password }}</h1>
</body>
</html>获取方法一代码：
package main
//from表单提交的参数
import (
"net/http"
"github.com/gin-gonic/gin"
)
func main() {
r := gin.Default()
r.LoadHTMLFiles("./login.html", "./index.html")
r.GET("/login", func(c *gin.Context) {
c.HTML(http.StatusOK, "login.html", nil)
})
//POST请求
r.POST("/login", func(c *gin.Context) {
username := c.PostForm("username")
password := c.PostForm("password")
c.HTML(http.StatusOK, "index.html", gin.H{
"Name": username,
"Password": password,
})
})
r.Run(":9090")
}
获取方法二代码：
带默认值
package main
//from表单提交的参数
import (
"net/http"
"github.com/gin-gonic/gin"
)
func main() {
r := gin.Default()
r.LoadHTMLFiles("./login.html", "./index.html")
r.GET("/login", func(c *gin.Context) {
c.HTML(http.StatusOK, "login.html", nil)
})
//POST请求
r.POST("/login", func(c *gin.Context) {
// username := c.PostForm("username")
// password := c.PostForm("password")
username := c.DefaultPostForm("username", "somebody")
password := c.DefaultPostForm("password", "*******")
c.HTML(http.StatusOK, "index.html", gin.H{
"Name": username,
"Password": password,
})
})
r.Run(":9090")
}
方法三：GetPostFrom
package main
//from表单提交的参数
import (
"net/http"
"github.com/gin-gonic/gin"
)
func main() {
r := gin.Default()
r.LoadHTMLFiles("./login.html", "./index.html")
r.GET("/login", func(c *gin.Context) {
c.HTML(http.StatusOK, "login.html", nil)
})
//POST请求
r.POST("/login", func(c *gin.Context) {
// username := c.PostForm("username")
// password := c.PostForm("password")
//username := c.DefaultPostForm("username", "somebody")
//password := c.DefaultPostForm("password", "*******")
username,ok := c.GetPostForm("username")
if !ok {
username = "sb"
}
password,ok := c.GetPostForm("password")
if !ok {
password = "******"
}
c.HTML(http.StatusOK, "index.html", gin.H{
"Name": username,
"Password": password,
})
})
r.Run(":9090")
}
