Gin-参数获取总结
Path 参数
代码语言：go
复制func main() {
router := gin.Default()
//可以匹配/user/john, 但是不能匹配 /user/ or /user
router.GET("/user/:name", func(c *gin.Context) {
name := c.Param("name")
c.String(http.StatusOK, "Hello %s", name)
})
//可以匹配/user/john/ 和 /user/john/send
//如果没有匹配到 /user/john, 将重定向到 /user/john/
router.GET("/user/:name/*action", func(c *gin.Context) {
name := c.Param("name")
action := c.Param("action")
message := name " is " action
c.String(http.StatusOK, message)
})
router.Run(":8080")
}
Querystring 参数
代码语言：go
复制func main() {
router := gin.Default()
// 请求响应匹配的 URL: /welcome?firstname=Jane&lastname=Doe
router.GET("/welcome", func(c *gin.Context) {
firstname := c.DefaultQuery("firstname", "Guest")
lastname := c.Query("lastname")
c.String(http.StatusOK, "Hello %s %s", firstname, lastname)
})
router.Run(":8080")
}
Multipart/Urlencoded Form 参数
代码语言：go
复制func main() {
router := gin.Default()
router.POST("/form_post", func(c *gin.Context) {
message := c.PostForm("message")
nick := c.DefaultPostForm("nick", "anonymous")
c.JSON(http.StatusOK, gin.H{
"status": "posted",
"message": message,
"nick": nick,
})
})
router.Run(":8080")
}
Map as querystring or postform parameters
代码语言：go
复制func main() {
router := gin.Default()
router.POST("/post", func(c *gin.Context) {
ids := c.QueryMap("ids")
names := c.PostFormMap("names")
fmt.Printf("ids: %v; names: %v", ids, names)
})
router.Run(":8080")
}
上传文件
代码语言：go
复制func main() {
router := gin.Default()
// Set a lower memory limit for multipart forms (default is 32 MiB)
router.MaxMultipartMemory = 8 << 20 // 8 MiB
router.POST("/upload", func(c *gin.Context) {
// Single file
file, _ := c.FormFile("file")
log.Println(file.Filename)
// Upload the file to specific dst.
c.SaveUploadedFile(file, dst)
c.String(http.StatusOK, fmt.Sprintf("'%s' uploaded!", file.Filename))
})
router.Run(":8080")
}
curl -X POST http://localhost:8080/upload
-F "file=@/Users/appleboy/test.zip"
-H "Content-Type: multipart/form-data"
