webwork 获取表单值

<!-- 新增用户 -->
		<div id="addUserDiv" style="display:none">
		<!-- head -->
			<table class="title_table">
			    <tr>
			      <td id="left"><span id="name">新增用户</span></td>
			    </tr>
			 </table>
		<!-- body get/set UserRole VO -->
		<table class="main_table">
		 <tr>
		 	<td>
		 	<form action="addRoleUser.action" method="post" 
			name="addUserFrm" >
		  	<table class="form_table">
		      <tr>
		          <td class="texts">登录用户名 ：</td>
		          <td class="forms">
		          	<input type="text" name="userRole.userName" 
				id="addUserName" />
		          </td>
		          
		          <td class="texts">权限类型：</td>
		          <td class="forms">
					<select name="userRole.roleId" 
					id="addUserSelect">
		                <option value="1" >超级管理员</option>
		                <option value="2" >管理员</option>
		                <option value="3" >普通用户</option>
		            </select>
			   	  </td>
			   	  
		        </tr>
		        <tr>
		          <td class="texts">用户密码 ：</td>
		          <td class="forms">
		          	<input type="password" name="userRole.password" 
				id="addUserPsw" />
		          </td>
		          
		          <td class="texts"></td>
		          <td class="forms">
		          	<input type="button" class="input4"  id="saveAddUser" 
				value="保存"/>
			   	  </td>
			   	  
		        </tr>
		        <tr>
		        	 <td class="texts">确认密码 ：</td>
			          <td class="forms">
			          	<input type="password" name="userRole.password" 
					id="addUserPsw2" />
			          </td>
		        </tr>
		     </table>
		     </form>
		     </td>
		    </tr>
		  </table>	 
		</div>

private UserRole userRole = new UserRole(); // 页面 新增用户 获取 表单元素 

	public String addRoleUser(){
		System.out.println("###　add Role User roleManagerAction ###");
		System.out.println(
				"userName = "+userRole.getUserId().getUserName()+" 这个是hibernate的多
				表关联 这里是两个表 many-to-one " 
				+"passWord = "+userRole.getUserId().getPassword()+" "
				+"roleId = "+userRole.getRoleId()+" "
				+"userId = "+userRole.getUserId().getId()
		);
		try {
			roleService.addUserRoleAndUser(userRole);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return SUCCESS;
	}
	/**
	 * userRole get/set VO 表单元素
	 */
	public UserRole getUserRole() {
		return userRole;
	}
	public void setUserRole(UserRole userRole) {
		this.userRole = userRole;
	}