package main
import (
    "github.com/gin-gonic/gin"
    "net/http"
)
func main() {
    engine := gin.Default()
    //請(qǐng)求參數(shù) 用:變量名 表示
    engine.GET("/user/:id", func(ctx *gin.Context) {
        //后臺(tái)獲取請(qǐng)求參數(shù)通過ctx.Param("參數(shù)名") 來獲取
        id := ctx.Param("id")
        //響應(yīng)到頁面
        //fmt.Fprintf(ctx.Writer, "你的請(qǐng)求id: %s", id)
        ctx.String(http.StatusOK, "您的id是%s", id)
    })
    engine.Run()
}

package main
import (
    "fmt"
    "github.com/gin-gonic/gin"
    "net/http"
)
func main() {
    engine := gin.Default()
    engine.GET("/user/list", func(ctx *gin.Context) {
        name := ctx.Query("name")
        gender := ctx.DefaultQuery("gender", "男")
        habits := ctx.QueryArray("habits")
        fmt.Printf("name: %s, gender: %s, habits: %v\n", name, gender, habits)
        works := ctx.QueryMap("works")
        //響應(yīng)到頁面
        ctx.String(http.StatusOK, "%s, %s, %v, %s\n", name, gender, habits, works)
    })
    engine.Run(":8080")
}

package main
import (
    "fmt"
    "github.com/gin-gonic/gin"
)
func main() {
    engine := gin.Default()
    //使用post請(qǐng)求
    engine.POST("/user/add", func(ctx *gin.Context) {
        name := ctx.PostForm("name")
        gender := ctx.DefaultPostForm("gender", "男")
        //獲取切片數(shù)據(jù)
        habits := ctx.PostFormArray("habits")
        //獲取map數(shù)據(jù)
        works := ctx.PostFormMap("works")
        fmt.Printf("%s, %s, %v, %s\n", name, gender, habits, works)
    })
    engine.Run()
}

package main
import (
    "github.com/gin-gonic/gin"
    "net/http"
)
func main() {
    engine := gin.Default()
    engine.POST("/getHeader", func(ctx *gin.Context) {
        //拿到請(qǐng)求頭參數(shù)數(shù)據(jù)
        userAgent := ctx.GetHeader("User-Agent")
        ctx.String(http.StatusOK, "User-Agent: %s", userAgent)
    })
    engine.Run()
}

package main
import (
    "github.com/gin-gonic/gin"
    "net/http"
)
// User 定義結(jié)構(gòu)體，使用form標(biāo)簽指定參數(shù)名，以便正確地綁定參數(shù) get請(qǐng)求使用功能form標(biāo)簽
type User struct {
    Id    int64  `form:"id"`
    Name  string `form:"name"`
    Age   int    `form:"age"`
    Email string `form:"email"`
}
func main() {
    engine := gin.Default()
    engine.GET("/user/info", func(ctx *gin.Context) {
        var user User
        //將結(jié)構(gòu)體對(duì)象指針傳進(jìn)去
        if err := ctx.ShouldBindQuery(&user); err != nil {
            ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
            return
        }
        //以json字符串的方式響應(yīng)給客戶端這個(gè)結(jié)構(gòu)體對(duì)象
        ctx.JSON(http.StatusOK, user)
    })
    engine.Run()
}

package main
import (
    "github.com/gin-gonic/gin"
    "net/http"
)
// User 綁定HTTP Body參數(shù)到結(jié)構(gòu)體 ，創(chuàng)建結(jié)構(gòu)體時(shí)需要用json標(biāo)簽
type User struct {
    Id    int64  `json:"id"`
    Name  string `json:"name"`
    Age   int    `json:"age"`
    Email string `json:"email"`
}
func main() {
    engine := gin.Default()
    engine.POST("/user/add", func(ctx *gin.Context) {
        var user User
        // ctx.ShouldBindJSON(&user) 將結(jié)構(gòu)體指針傳進(jìn)去
        if err := ctx.ShouldBindJSON(&user); err != nil {
            ctx.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
            return
        }
        //響應(yīng)給客戶端結(jié)構(gòu)體
        ctx.JSON(http.StatusOK, user)
    })
    engine.Run()
}

package main
import (
    "encoding/json"
    "github.com/gin-gonic/gin"
    "net/http"
)
func main() {
    engine := gin.Default()
    engine.POST("/json", func(ctx *gin.Context) {
        // GetRawData : 從c.Request.Body讀取請(qǐng)求數(shù)據(jù), 返回 []byte
        // func (c *Context) GetRawData() ([]byte, error)
        b, _ := ctx.GetRawData()
        // 定義map或結(jié)構(gòu)體接收
        var m map[string]interface{}
        // 將接收的b json反序列化為map數(shù)據(jù)
        _ = json.Unmarshal(b, &m)
        ctx.JSON(http.StatusOK, m)
    })
    engine.Run()
}