JQuery处理XML
首先看例子，接着是注意事项

public void test(HttpServletRequest request, HttpServletResponse response)    throws Exception {        // 查找回访主表        PrintWriter out = response.getWriter();        response.setContentType("text/xml");            String name = request.getParameter("name");        System.out.println("name==="+name);        String xml = "<?xml version='1.0' encoding=\"UTF-8\"?><callcenter_response>";      xml+="<action_id>POLICY_INFO</action_id><record><policy_id>19049059</policy_id><policy_code>000486474153008</policy_code></record></callcenter_response>";        //out.write("true");    //返回给xmlgiftHttp.responseText        out.write(xml);        //out.println(xml);        out.flush();            out.close();               System.out.println("xml===="+xml);        System.out.println("成功..................");    }

1.这里得注意$.ajax的属性DataType:'XML'
2.Java中得Out.println中response.setContentType("text/xml");也必须是XML格式的