func main() { openHttpListen() } func openHttpListen() { http.HandleFunc("/", receiveClientRequest) fmt.Println("go server start running...") err := http.ListenAndServe(":9090", nil) if err != nil { log.Fatal("ListenAndServe: ", err) } } func receiveClientRequest(w http.ResponseWriter, r *http.Request) { w.Header().Set("Access-Control-Allow-Origin", "*") //允许访问所有域 w.Header().Add("Access-Control-Allow-Headers", "Content-Type") //header的类型 w.Header().Set("content-type", "application/json") //返回数据格式是json r.ParseForm() fmt.Println("收到客户端请求: ", r.Form)
测试下来,发现web端发送数据给go服务器是可以收到的,就在go服务器返回数据给client web端的时候,出现了跨域错误提示,给http.ResponseWriter.Header() 加这三行代码即可:
w.Header().Set("Access-Control-Allow-Origin", "*") //允许访问所有域 w.Header().Add("Access-Control-Allow-Headers", "Content-Type") //header的类型 w.Header().Set("content-type", "application/json") //返回数据格式是json
有疑问加站长微信联系(非本文作者)
![](https://static.golangjob.cn/static/img/footer.png?imageView2/2/w/280)