RESTful API 这玩意不用多说了,用Go做了个很简单的例子:
服务端在被调用时返回JsON,
客户端解析得到相关JsON信息.
服务端源码:
package main//简单的JsON Restful API演示(服务端)//author: Xiong Chuan liang//date: 2015-2-28import ( "enCoding/Json" "fmt" "net/http" "time")type Item struct { Seq int Result map[string]int}type Message struct { Dept string Subject string Time int64 Detail []Item}func getJson() ([]byte,error) { pass := make(map[string]int) pass["x"] = 50 pass["c"] = 60 item1 := Item{100,pass} reject := make(map[string]int) reject["l"] = 11 reject["d"] = 20 item2 := Item{200,reject} detail := []Item{item1,item2} m := Message{"IT","KPI",time.Now().Unix(),detail} return Json.Marshalindent(m,"","")}func handler(w http.ResponseWriter,r *http.Request) { resp,err := getJson() if err != nil { panic(err) } fmt.Fprintf(w,string(resp))}func main() { http.HandleFunc("/",handler) http.ListenAndServe("localhost:8085",nil)}服务端源码运行后,可在浏览器中执行看下效果:
说明返回是正常的。再用Go写个调用程序测试下:
package main//简单的JsON Restful API演示(调用端)//author: Xiong Chuan liang//date: 2015-2-28import ( "enCoding/Json" "fmt" "io/IoUtil" "net/http" "time")type Item struct { Seq int Result map[string]int}type Message struct { Dept string Subject string Time int64 Detail []Item}func main() { url := "http://localhost:8085" ret,err := http.Get(url) if err != nil { panic(err) } defer ret.Body.Close() body,err := IoUtil.ReadAll(ret.Body) if err != nil { panic(err) } var msg Message err = Json.Unmarshal(body,&msg) if err != nil { panic(err) } strTime := time.Unix(msg.Time,0).Format("2006-01-02 15:04:05") fmt.Println("Dept:",msg.Dept) fmt.Println("Subject:",msg.Subject) fmt.Println("Time:",strTime,"\n",msg.Detail)}/*//运行结果:Dept: ITSubject: KPITime: 2015-02-28 16:43:11 [{100 map[c:60 x:50]} {200 map[d:20 l:11]}]*/从运行结果中可以看到,已正确得到相关JsON信息。
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BLOG: http://blog.csdn.net/xcl168
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