GoFrame入门教程 GoFrame 数据返回-JSON/XML

2024-02-25 开发教程 GoFrame入门教程 匿名 3

相关方法:

func (r *Response) WriteJson(content interface{}) error
func (r *Response) WriteJsonExit(content interface{}) error
func (r *Response) WriteJsonP(content interface{}) error
func (r *Response) WriteJsonPExit(content interface{}) error
func (r *Response) WriteXml(content interface{}, rootTag ...string) error
func (r *Response) WriteXmlExit(content interface{}, rootTag ...string) error

Response​提供了对​JSON/XML​数据格式输出的原生支持,通过以下方法实现:

  1. WriteJson*​ 方法用于返回​JSON​数据格式,参数为任意类型,可以为​string​、​map​、​struct​等等。返回的​Content-Type​为​application/json​。
  2. WriteXml*​ 方法用于返回​XML​数据格式,参数为任意类型,可以为​string​、​map​、​struct​等等。返回的​Content-Type​为​application/xml​。

对​JSON​数据格式支持的同时,同时也支持​JSONP​协议。

JSON

package main
import (
"github.com/gogf/gf/v2/frame/g"
"github.com/gogf/gf/v2/net/ghttp"
)
func main() {
s := g.Server()
s.Group("/", func(group *ghttp.RouterGroup) {
group.ALL("/json", func(r *ghttp.Request) {
r.Response.WriteJson(g.Map{
"id": 1,
"name": "john",
})
})
})
s.SetPort(8199)
s.Run()
}

执行后,我们通过​curl​工具测试下:

$ curl -i http://127.0.0.1:8199/json
HTTP/1.1 200 OK
Content-Type: application/json
Server: GF HTTP Server
Date: Sun, 05 Jan 2020 02:49:31 GMT
Content-Length: 22
{"id":1,"name":"john"}

JSONP

需要注意使用​JSONP​协议时必须通过​Query​方式提供​callback​参数。

package main
import (
"github.com/gogf/gf/v2/frame/g"
"github.com/gogf/gf/v2/net/ghttp"
)
func main() {
s := g.Server()
s.Group("/", func(group *ghttp.RouterGroup) {
group.ALL("/jsonp", func(r *ghttp.Request) {
r.Response.WriteJsonP(g.Map{
"id": 1,
"name": "john",
})
})
})
s.SetPort(8199)
s.Run()
}

执行后,我们通过​curl​工具测试下:

$ curl -i "http://127.0.0.1:8199/jsonp?callback=MyCallback"
HTTP/1.1 200 OK
Server: GF HTTP Server
Date: Sun, 05 Jan 2020 02:50:42 GMT
Content-Length: 34
Content-Type: text/plain; charset=utf-8
MyCallback({"id":1,"name":"john"})

XML

package main
import (
"github.com/gogf/gf/v2/frame/g"
"github.com/gogf/gf/v2/net/ghttp"
)
func main() {
s := g.Server()
s.Group("/", func(group *ghttp.RouterGroup) {
group.ALL("/xml", func(r *ghttp.Request) {
r.Response.Write(`<?xml version="1.0" encoding="UTF-8"?>`)
r.Response.WriteXml(g.Map{
"id": 1,
"name": "john",
})
})
})
s.SetPort(8199)
s.Run()
}

执行后,我们通过​curl​工具测试下:

$ curl -i http://127.0.0.1:8199/xml
HTTP/1.1 200 OK
Content-Type: application/xml
Server: GF HTTP Server
Date: Sun, 05 Jan 2020 03:00:55 GMT
Content-Length: 76
<?xml version="1.0" encoding="UTF-8"?><doc><id>1</id><name>john</name></doc>