李飞JQuery之getJSON

最近用jQuery做了一个ajax验证，用到了json的
jQuery.getJSON(url, [data], [callback])
代码贴出来以便共享：

前台请求jsp页面testJson.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>






















后台jsp页面testdata.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%
/**
*@auth:李飞
*@QQ1873922520
*/
response.setContentType("application/json");//这个一定要加
String callback = request.getParameter("callback");
String email = request.getParameter("email");
String username = request.getParameter("username");
String remsg = "{\"username\":\"" + username + "\",\"email\":\"" + email + "\"}";
%>
<%=callback + "(" + remsg + ")"%>