Gin框架中的GET和POST表单处理的实现

func main() {
	router := gin.Default()

	router.GET("/search", func(c *gin.Context) {
		keyword := c.Query("keyword")
		page := c.Query("page")

		// 处理搜索逻辑...

		c.JSON(http.StatusOK, gin.H{"keyword": keyword, "page": page})
	})

	router.Run()
}

func main() {
	router := gin.Default()

	router.POST("/register", func(c *gin.Context) {
		username := c.PostForm("username")
		password := c.PostForm("password")

		// 处理注册逻辑...

		c.JSON(http.StatusOK, gin.H{"username": username, "password": password})
	})

	router.Run()
}

type LoginForm struct {
	Username string `form:"username" binding:"required"`
	Password string `form:"password" binding:"required"`
}

func main() {
	router := gin.Default()

	router.POST("/login", func(c *gin.Context) {
		var form LoginForm
		if err := c.Bind(&form); err != nil {
			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
			return
		}

		// 处理登录逻辑...

		c.JSON(http.StatusOK, gin.H{"username": form.Username, "password": form.Password})
	})

	router.Run()
}

func main() {
	router := gin.Default()

	router.POST("/upload", func(c *gin.Context) {
		file, header, err := c.Request.FormFile("file")
		if err != nil {
			c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
			return
		}

		// 处理文件上传逻辑...

		c.JSON(http.StatusOK, gin.H{"filename": header.Filename})
	})

	router.Run()
}