gin框架入门

go
,

1.下载安装

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go get -u github.com/gin-gonic/gin

2.路由

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r ：= gin.Default()
r.GET("/",func (ctx *gin.Context) {

	})
r.POST("/",func (ctx *gin.Context)) {

	})

r.Run(":9999")

3.中间件

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func Logger() gin.HandlerFunc {
    return func(c *gin.Context) {
        t := time.Now()

        // Set example variable
        c.Set("example", "12345")

        // before request

        c.Next()

        // after request
        latency := time.Since(t)
        log.Print(latency)

        // access the status we are sending
        status := c.Writer.Status()
        log.Println(status)
    }
}

func main() {
    r := gin.New()
    r.Use(Logger())

    r.GET("/test", func(c *gin.Context) {
        example := c.MustGet("example").(string)

        // it would print: "12345"
        log.Println(example)
    })

    // Listen and serve on 0.0.0.0:8080
    r.Run(":8080")
}

4.日志组件

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go get -u go.uber.org/zap

使用方式

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logger, _ := zap.NewProduction()
defer logger.Sync()
logger.Info("failed to fetch URL",
  // Structured context as strongly typed Field values.
  zap.String("url", url),
  zap.Int("attempt", 3),
  zap.Duration("backoff", time.Second),
)