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相关方法：
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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：
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。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。
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JSON
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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：
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$ 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。
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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：
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$ 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
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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：
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$ 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> |
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