Gin之gin快速开始

1、gin快速开始

1.1 新建一个项目

[root@zsx src]# mkdir ginquickstart
[root@zsx src]# cd ginquickstart/
[root@zsx ginquickstart]# go mod init ginquickstart
go: creating new go.mod: module ginquickstart

1.2 复制启动文件模板到项目目录中

[root@zsx ginquickstart]# curl https://raw.githubusercontent.com/gin-gonic/examples/master/basic/main.go > main.go

1.3 下载相关依赖包

[root@zsx ginquickstart]# go mod tidy

1.4 修改启动端口

// 根据实际情况修改启动端口,这里修改为8085
// 修改main.go
func main() {
	r := setupRouter()
	// Listen and Server in 0.0.0.0:8080
	r.Run(":8085")
}

1.5 启动项目

[root@zsx ginquickstart]# 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.setupRouter.func1 (3 handlers)
[GIN-debug] GET    /user/:name               --> main.setupRouter.func2 (3 handlers)
[GIN-debug] POST   /admin                    --> main.setupRouter.func3 (4 handlers)
[GIN-debug] [WARNING] You trusted all proxies, this is NOT safe. We recommend you to set a value.
Please check https://pkg.go.dev/github.com/gin-gonic/gin#readme-don-t-trust-all-proxies for details.
[GIN-debug] Listening and serving HTTP on :8085

1.6 访问项目

[root@zsx ~]# curl http://localhost:8085/ping
pong

[root@zsx ~]# curl http://localhost:8085/user/tom
{"status":"no value","user":"tom"}

[root@zsx ~]# curl -X POST http://localhost:8085/admin -H 'authorization: Basic Zm9vOmJhcg==' -H 'content-type: application/json' -d '{"value":"bar"}'
{"status":"ok"}

1.7 自定义请求

停掉 main.go，编写一个文件 example.go：

package main
import "github.com/gin-gonic/gin"
func main() {
    r := gin.Default()
    r.GET("/ping", func(c *gin.Context) {
        c.JSON(200, gin.H{
            "message": "pong",
        })
    })
    r.Run(":8085") // 监听并在 0.0.0.0:8085 上启动服务
}

重新启动项目：

[root@zsx ginquickstart]# go run example.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 (3 handlers)
[GIN-debug] [WARNING] You trusted all proxies, this is NOT safe. We recommend you to set a value.
Please check https://pkg.go.dev/github.com/gin-gonic/gin#readme-don-t-trust-all-proxies for details.
[GIN-debug] Listening and serving HTTP on :8085

访问：

[root@zsx ~]# curl http://localhost:8085/ping
{"message":"pong"}