简介
对于webservice接口跨越访问有前端已有相关解决方案：比如：ajax使用jsonp 或者用专门的jquery.jsonp.js来进行访问。 此处介绍如何通过后台访问接口，然后将返回值提供给前台，此处以MVC编写为例
后台Control中编写
//url是要访问的服务接口地址
public string queryRespose(string url)
{
string json
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest
.Create(url)
request
.Timeout =
15000
request
.Method =
"GET"
request
.ContentType =
"application/x-www-form-urlencoded"
HttpWebResponse response = (HttpWebResponse)request
.GetResponse()
System
.IO.StreamReader reader = new System
.IO.StreamReader(response
.GetResponseStream(), Encoding
.UTF8)
json = reader
.ReadToEnd()
reader
.Close()
}
catch (Exception ex) { json = ex
.Message
return json
}
前端页面调用
$.ajax({
type:
"GET",
url:
"/ControlName/queryRespose",
dataType:
"json",
async:
false,
data: {
url: url
},
beforeSend:
function () {
},
success: lang.hitch(
this,
function (msg) {
}),
error:
function () {
console.log(
"error");
}
});
