跳转到内容
Gin Web Framework

绑定查询字符串或 POST 数据

ShouldBind 会根据 HTTP 方法和 Content-Type 请求头自动选择绑定引擎：

  • 对于 GET 请求，使用查询字符串绑定（form 标签）。
  • 对于 POST/PUT 请求，它会检查 Content-Type——对 application/json 使用 JSON 绑定，对 application/xml 使用 XML 绑定，对 application/x-www-form-urlencoded 或 multipart/form-data 使用表单绑定。

这意味着单个处理函数可以同时接受来自查询字符串和请求体的数据，无需手动选择数据源。

package main


import (
  "log"
  "net/http"
  "time"


  "github.com/gin-gonic/gin"
)


type Person struct {
  Name     string    `form:"name"`
  Address  string    `form:"address"`
  Birthday time.Time `form:"birthday" time_format:"2006-01-02" time_utc:"1"`
}


func main() {
  route := gin.Default()
  route.GET("/testing", startPage)
  route.POST("/testing", startPage)
  route.Run(":8085")
}


func startPage(c *gin.Context) {
  var person Person
  if err := c.ShouldBind(&person); err != nil {
    c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
    return
  }


  log.Printf("Name: %s, Address: %s, Birthday: %s\n", person.Name, person.Address, person.Birthday)
  c.JSON(http.StatusOK, gin.H{
    "name":     person.Name,
    "address":  person.Address,
    "birthday": person.Birthday,
  })
}

测试

Terminal window
# GET with query string parameters
curl "http://localhost:8085/testing?name=appleboy&address=xyz&birthday=1992-03-15"
# Output: {"address":"xyz","birthday":"1992-03-15T00:00:00Z","name":"appleboy"}


# POST with form data
curl -X POST http://localhost:8085/testing \
  -d "name=appleboy&address=xyz&birthday=1992-03-15"
# Output: {"address":"xyz","birthday":"1992-03-15T00:00:00Z","name":"appleboy"}


# POST with JSON body
curl -X POST http://localhost:8085/testing \
  -H "Content-Type: application/json" \
  -d '{"name":"appleboy","address":"xyz","birthday":"1992-03-15"}'
# Output: {"address":"xyz","birthday":"1992-03-15T00:00:00Z","name":"appleboy"}

另请参阅