一 服务器端代码
package com.cn;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/data/inteface")
public class Test {
@RequestMapping("/getdata")
public void getSolrArticleen(String parameter,
HttpServletRequest request, HttpServletResponse response) throws Exception{
String callback = request.getParameter("jsoncallback");
parameter = new String(parameter.getBytes("iso-8859-1"), "utf-8");
//获取数据
DataRepository dataRepository = new DataRepository();
List<String> primaryItems = dataRepository.getData();
//把获取的数据转换成字符串，这里用的是FastJson,也可以根据需要用Gson
String jsonArticle = JSONObject.toJSONString(primaryItems,
SerializerFeature.DisableCircularReferenceDetect);
//把需要输出的服务器端的字符串拼接callback头
String json = callback+"(" + jsonArticle + ")";
//输出到客户端
GetOut.getWriter(json, response);
}
}
二 获取输出流的代码
package com.cn;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletResponse;
/**
*
* @Title: GetOut.java
*
* @Package: com.cn
*
* @Company: WiiMedia
*
* @Description: 获取输出流
*
* @author: SongJia
*
* @date: 2016-06-27 上午11:09:27
*
*/
public class GetOut {
public static PrintWriter getWriter(String msg,HttpServletResponse response) throws IOException{
response.setContentType("text/html;charset=utf-8");
PrintWriter out = null;
out = response.getWriter();
out.write(msg);
out.flush();
out.close();
return out;
}
}
三 客户端请求数据代码
<script type="text/javascript">
function AcquireData() {
$.ajax({
async:false,
url: "http://m.lecoonginfo.com/data/inteface/getdata, // 跨域URL
type: 'GET',
dataType: 'jsonp',
jsonp: 'jsoncallback', //默认callback
timeout: 5000,
success: function (json) {
//客户端jquery预先定义好的callback函数，
//成功获取跨域服务器上的json数据后，
//会动态执行这个callback函数
console.log(json);
}
}
});
</script>
转载于:https://www.cnblogs.com/Matchman/p/7380042.html
