大佬教程收集整理的这篇文章主要介绍了golang gin 中间件，返回结果，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
package main
import (
"net/http"
"github.com/gin-gonic/gin"
)
func response() gin.HandlerFunc {
return func(c *gin.Context) {
c.Next()
if c.Writer.Written() {
return
}
params := c.Keys
if len(params) == 0 {
return
}
c.JSON(http.StatusOK,params)
}
}
func main() {
r := gin.Default()
r.Use(response())
r.GET("/ping",func(c *gin.Context) {
c.String(http.StatusOK,"PONG")
})
r.GET("/status",func(c *gin.Context) {
c.Status(http.StatusOK)
})
r.GET("/Hello",func(c *gin.Context) {
c.Set("message","Hello,world")
})
r.Run()
}
? src go run main.go [GIN-debug] [WARNING] CreaTing an ENGIne instance with the Logger and Recovery middleware already attached. [GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production. - using env: export GIN_MODE=release - using code: gin.SetMode(gin.ReleaseModE) [GIN-debug] GET /ping --> main.main.func1 (4 handlers) [GIN-debug] GET /status --> main.main.func2 (4 handlers) [GIN-debug] GET /Hello --> main.main.func3 (4 handlers) [GIN-debug] Environment variable PORT is undefined. Using port :8080 by default [GIN-debug] Listening and serving http on :8080 [GIN] 2018/11/15 - 23:23:23 | 200 | 128.732µs | 127.0.0.1 | GET /ping [GIN] 2018/11/15 - 23:23:26 | 200 | 1.764µs | 127.0.0.1 | GET /status [GIN] 2018/11/15 - 23:23:31 | 200 | 135.48µs | 127.0.0.1 | GET /Hello
? ~ http http://127.0.0.1:8080/ping http/1.1 200 OK Content-Length: 4 Content-Type: text/plain; charset=utf-8 Date: Thu,15 Nov 2018 15:23:23 GMT PONG ? ~ http http://127.0.0.1:8080/status http/1.1 200 OK Content-Length: 0 Date: Thu,15 Nov 2018 15:23:26 GMT ? ~ http http://127.0.0.1:8080/Hello http/1.1 200 OK Content-Length: 26 Content-Type: application/json; charset=utf-8 Date: Thu,15 Nov 2018 15:23:31 GMT { "message": "Hello,world" }
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