1.返回byte和string类型

context.Writer.Write([]byte("fullpath="+fullpath))
context.Writer.WriteString("fullpath"+fullpath)

2.返回JSON

package main

import (
	"github.com/gin-gonic/gin"
	"net/http"
)

func main(){
	engine := gin.Default()
	engine.GET("/hello", func(context *gin.Context) {
		fullpath := context.FullPath()
		context.Writer.Write([]byte("fullpath="+fullpath))
		context.Writer.WriteString("fullpath"+fullpath)
	})
	//map类型的
	engine.GET("/hellojson", func(context *gin.Context) {
		fullpath := context.FullPath()
		context.JSON(200, map[string]interface{}{
			"code":200,
			"msg":"OK",
			"data":fullpath,
		})
	})
	//结构体类型
	engine.GET("/hellostruct", func(context *gin.Context) {
		fullpath := context.FullPath()
		resp := Response{
			Code: 200,
			Msg: "OK",
			Data: fullpath,
		}
		context.JSON(200,&resp)
	})
	//模板渲染
	engine.LoadHTMLGlob("./gin01/html/*")//设置html访问路径
	engine.Static("/img","./img") //第一个参数是前端访问的  第二个参数是本地的
	engine.GET("/helloshtml", func(context *gin.Context) {
		fullpath := context.FullPath()
		context.HTML(http.StatusOK,"index.html",gin.H{
			"fullpath":fullpath,
		}) //传值到html  页面{{.fullpath}}渲染
	})
	engine.Run()
}

type Response struct {
	Code int
	Msg string
	Data interface{}
}