Servlet中无法实现跳转了，真找不出来问题出在哪了
今天刚开始学习jQuery EasyUI, 做了个简单的登录窗口, 用户和密码两个字段, 访问的是Servlet, 可以在后台打印出两个字段的值,简单的验证了一下值然后跳转, 结果浏览器无反应

页面代码如下：

<div class="easyui-panel" title="用户登录" style="width:300px">

			<div style="padding:10px 0 0 40px">

				<form id="ff" method="post" action="http://localhost:8080/easyui/UserLoginServlet">

					<table>

						<tr>

							<td>

								用户:

							</td>

							<td>

								<input class="ww" type="text" name="name"></input>

							</td>

						</tr>

						<tr>

							<td>

								密码:

							</td>

							<td>

								<input class="ww" type="password" name="password"></input>

							</td>

						</tr>

					</table>

				</form>

			</div>

			<div style="text-align:center;padding:5px">

				<a href="javascript:void(0)" class="easyui-linkbutton"

					onclick="submitForm()">登录</a>

				<a href="javascript:void(0)" class="easyui-linkbutton"

					onclick="clearForm()">取消</a>

			</div>

		</div>

		<script>

			function submitForm(){

				$('#ff').form('submit');

			}

			function clearForm(){

				$('#ff').form('clear');

			}

		</script>

后台Servlet如下：

public class UserLoginServlet extends HttpServlet {



	public void doGet(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {

		this.doPost(request, response);

	}



	public void doPost(HttpServletRequest request, HttpServletResponse response)

			throws ServletException, IOException {

		

		request.setCharacterEncoding("UTF-8");

		

		String name = request.getParameter("name");

		String password = request.getParameter("password");

		

		System.out.println("用户: " + name);

		System.out.println("密码: " + password);



		if("admin".equals(name) && "123".equals(password)) {

			request.getRequestDispatcher("/success.html").forward(request, response);

		} else {

			response.sendRedirect("http://localhost:8080/easyui/fail.html");

		}

	}

}

工程web.xml如下：

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5" 

	xmlns="http://java.sun.com/xml/ns/javaee" 

	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 

	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

  

  <servlet>

    <servlet-name>UserLoginServlet</servlet-name>

    <servlet-class>com.wisher.easyui.servlet.UserLoginServlet</servlet-class>

  </servlet>



  <servlet-mapping>

    <servlet-name>UserLoginServlet</servlet-name>

    <url-pattern>/UserLoginServlet</url-pattern>

 &nbs