dwr验证失败

如下：<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
  <script type="text/javascript" src="dwr/engine.js"></script>
  <script type="text/javascript" src="dwr/util.js"></script>
  <script type="text/javascript" src="dwr/interface/UserDaoAjax.js"></script>
<title>注册</title>
</head>
<script type="text/javascript">
function show(boolean)
{
if(boolean)
{
alert('用户名已存在!');
}
}
function validate()
{
var name=registForm.name.value;
alert(name);
UserDaoAjax.exitUser(name,show);
}
</script>
<body onload="init()">
<div align="center">
  <s:form id="registForm" action="register.do" method="post">
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <table width="625" border="1" cellspacing="1" cellpadding="1">
    <tr align="center">
      <td colspan="1"><img src="/bookstore/images/dingdang.jpg"></td>
      <td align="center"  colspan="2">欢迎注册</td>
    </tr>
    <tr>
      <td width="188" height="45">&nbsp;</td>
      <td width="200">&nbsp;</td>
      <td width="219">&nbsp;</td>
    </tr>
    <tr>
      <td align="right">*用户昵称：</td>
      <td><s:textfield id="name" name="user.name" onchange="validate()"/></td>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td align="right">*密码：</td>
      <td><s:password id="password" name="user.password" /></td>
      <td>&nbsp;</td>
    </tr>
    <tr>
      <td align="right">*请再次输入密码：</td>
      <td><input type="password" id="password1" /></td>
      <td>&nbsp;</td>
    </tr>
        <tr>
      <td align="right">*邮箱：</td>
      <td><s:textfield id="email" name="user.email" /></td>
      <td>&nbsp;</td>
    </tr>
     <tr>
      <td height="31" colspan="3" align="center"><input type="submit" name="button" id="button" value="提交" /></td>
    </tr>
  </table>
  </s:form>
</div>
</body>
</html>
dwr.xml文件如下：<dwr>
  <allow>
    <create creator="spring" javascript="UserDaoAjax">
      <param name="beanName" value="userService" />
      <include method="exitUser"/>
    </create>
  </allow>
</dwr>
applicationContext.xml文件部分如下（确定该文件配置没有问题）： <bean id="userService" class="org.service.impl.UserService">
<property name="userDao">
<ref bean="userDao"/>
</property>
</bean> 就是输入昵称时，js里的   alert(name);已经输出，我设置了show_sql="true",但在后台却根本没显示查询数据库的            语句，大家帮我看看那个缓解鹅鹅鹅鹅鹅上还有纰漏？

解决方案 »

  1.   

    dwr请求也会过滤，加了权限控制的话就执行不了了
      

  2.   

    你帖出来的代码貌似没啥问题，就看你后台怎么写得了。把你的spring配置文件都贴出来还有那个处理的方法
      

  3.   

    web.xml<?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">
    <filter>
    <filter-name>encoding</filter-name>
    <!--<filter-class>org.util.Encoding</filter-class>-->
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
    <param-name>encoding</param-name>
    <param-value>UTF-8</param-value>
    </init-param>
    </filter>
    <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>
    <filter-mapping>
    <!-- filter-mapping确定过滤链的过滤顺序 -->
    <filter-name>encoding</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>
    <filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- 用于初始化Spring的Listener -->
    <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/classes/applicationContext.xml</param-value>
    </context-param>

    <servlet>
    <servlet-name>dwr</servlet-name>
    <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
    <init-param>
    <param-name>debug</param-name>
    <param-value>true</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
    <servlet-name>dwr</servlet-name>
    <url-pattern>/dwr/*</url-pattern>
    </servlet-mapping>

    <welcome-file-list>
    <welcome-file>/user/home_page.jsp</welcome-file>
    </welcome-file-list>
    <login-config>
    <auth-method>BASIC</auth-method>
    </login-config>
    </web-app>struts.propertiesstruts.objectFactory=spring
    struts.devMode=false
    struts.action.extension=do,action
    struts.i18n.reload=false
    struts.ui.theme=simple
    struts.locale=zh_CN
    struts.serve.static.browserCache=false
    struts.url.includeParams=none
    applicationContext.xml文件<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">
     
    <beans>
    <!-- 引入init.properties中属性 -->
    <bean id="placeholderConfig"
    class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="location">
    <value>classpath:init.properties</value>
    </property>
    </bean>
    <!-- 配置数据源，连接池使用c3p0 -->
    <bean id="dataSource"
    class="com.mchange.v2.c3p0.ComboPooledDataSource"
    destroy-method="close" dependency-check="none">
    <property name="driverClass">
    <value>${datasource.driverClassName}</value>
    </property>
    <property name="jdbcUrl">
    <value>${datasource.url}</value>
    </property>
    <property name="user">
    <value>${datasource.username}</value>
    </property>
    <property name="password">
    <value>${datasource.password}</value>
    </property>
    <property name="acquireIncrement">
    <value>${c3p0.acquireIncrement}</value>
    </property>
    <property name="initialPoolSize">
    <value>${c3p0.initialPoolSize}</value>
    </property>
    <property name="minPoolSize">
    <value>${c3p0.minPoolSize}</value>
    </property>
    <property name="maxPoolSize">
    <value>${c3p0.maxPoolSize}</value>
    </property>
    <property name="maxIdleTime">
    <value>${c3p0.maxIdleTime}</value>
    </property>
    <property name="idleConnectionTestPeriod">
    <value>${c3p0.idleConnectionTestPeriod}</value>
    </property>
    <property name="maxStatements">
    <value>${c3p0.maxStatements}</value>
    </property>
    <property name="numHelperThreads">
    <value>${c3p0.numHelperThreads}</value>
    </property>
    </bean>
    <!-- 配置Hibernate中的SessionFactory -->
    <bean id="sessionFactory"
    class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <!-- 引入数据源 -->
    <property name="dataSource">
    <ref local="dataSource" />
    </property>
    <!-- 配置Hibernate对应的映射资源 -->
    <property name="mappingResources">
    <list>
    <value>org/model/Book.hbm.xml</value>
    <value>org/model/BookComment.hbm.xml</value>
    <value>org/model/BookScore.hbm.xml</value>
    <value>org/model/Catalog.hbm.xml</value>
    <value>org/model/Message.hbm.xml</value>
    <value>org/model/Order.hbm.xml</value>
    <value>org/model/OrderItem.hbm.xml</value>
    <value>org/model/Shop.hbm.xml</value>
    <value>org/model/ShopComment.hbm.xml</value>
    <value>org/model/ShopScore.hbm.xml</value>
    <value>org/model/User.hbm.xml</value>
    </list>
    </property>
    <!-- 配置Hibernate的属性，包括断言，show_sql等 -->
    <property name="hibernateProperties">
    <props>
    <prop key="hibernate.dialect">
    ${hibernate.dialect}
    </prop>
    <prop key="hibernate.show_sql">
    ${hibernate.show_sql}
    </prop>
    <prop key="hibernate.format_sql">
    ${hibernate.format_sql}
    </prop>
    <prop key="hibernate.jdbc.fetch_size">
    ${hibernate.jdbc.fetch_size}
    </prop>
    <prop key="hibernate.jdbc.batch_size">
    ${hibernate.jdbc.batch_size}
    </prop>
    <prop key="hibernate.connection.release_mode">
    ${hibernate.connection.release_mode}
    </prop>
    </props>
    </property>
    </bean>

    <!-- 配置事务管理器bean  -->
    <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <!-- 为事务管理器注入sessionFactory" -->
      <property name="sessionFactory">
        <ref bean="sessionFactory"/>
      </property>
    </bean>
    <!-- 事务控制代理抽象定义  -->
    <bean id="transactionProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true">
    <!-- 为事务代理bean注入一个事物管理器 -->
      <property name="transactionManager">
            <ref bean="transactionManager"/>   
      </property>
      <property name="transactionAttributes">
      <!-- 定义事务传播属性 -->
        <props>
          <prop key="add*">PROPAGATION_REQUIRED</prop>
          <prop key="delete*">PROPAGATION_REQUIRED</prop>
          <prop key="update*">PROPAGATION_REQUIRED</prop>
          <prop key="find*">PROPAGATION_REQUIRED,readOnly</prop>
          <prop key="release*">PROPAGATION_REQUIRED</prop>
          <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
        </props>
      </property>
    </bean>

    <!-- BaseDao -->
    <bean id="baseDao" class="org.dao.BaseDao">
    <property name="sessionFactory">
    <ref bean="sessionFactory"/>
    </property>
    </bean>

    <!-- DAO -->
    <bean id="userDao" class="org.dao.impl.UserDao" parent="baseDao"/>
    <bean id="catalogDao" class="org.dao.impl.CatalogDao" parent="baseDao"/>
    <bean id="bookDao" class="org.dao.impl.BookDao" parent="baseDao"/>
    <bean id="commentDao" class="org.dao.impl.CommentDao" parent="baseDao"/>

    <!-- Service -->
    <bean id="userService" class="org.service.impl.UserService">
    <property name="userDao">
    <ref bean="userDao"/>
    </property>
    </bean>
    <bean id="catalogService" class="org.service.impl.CatalogService">
    <property name="catalogDao">
    <ref bean="catalogDao"/>
    </property>
    </bean>
    <bean id="bookService" class="org.service.impl.BookService">
    <property name="bookDao">
    <ref bean="bookDao"/>
    </property>
    </bean>
    <bean id="commentService" class="org.service.impl.CommentService">
    <property name="commentDao">
    <ref bean="commentDao"/>
    </property>
    </bean>

    <!-- Action -->
    <bean id="userAction" class="org.action.UserAction">
    <property name="userService">
    <ref bean="userService"/>
    </property>
    </bean>
    <bean id="bookAction" class="org.action.BookAction">
    <property name="catalogService">
    <ref bean="catalogService"/>
    </property>
    <property name="bookService">
    <ref bean="bookService"/>
    </property>
    <property name="commentService">
    <ref bean="commentService"/>
    </property>
    </bean>


    </beans>
    userDao.javapackage org.dao.impl;import java.util.*;
    import org.model.User;
    import org.dao.*;
    import org.hibernate.Session;
    import org.hibernate.Transaction;
    public class UserDao extends BaseDao implements IUserDao{    public boolean exitUser(String name){
         Session sess=null;
    String hql="from User u where u.name=?";
    try
    {
    sess = getSession();
    Iterator users=sess.createQuery(hql).setParameter(0, name).iterate();

    if(users.hasNext())
    return true;
    else
    return false;
    }
    catch (Exception e)
    {
    e.printStackTrace();
    return true;
    }
    finally
    {
    sess.close();
    }
        }
    }
    如上，麻烦大家哈~红色的是我觉得可能会错的地方
      

  4.   

    function show(boolean)
    这里写不对吧
    boolean 是基础类型，不能做为你自定义的参数
    修改一下试试function show(rtn)
    {
        if(rtn)
        {
            alert('用户名已存在!');
        }
    }
      

  5.   

    发现跟我的配置有点不一样
    我引用的JS是用绝对路径  <script type="text/javascript" src="/dwr/engine.js"></script>
      <script type="text/javascript" src="/dwr/util.js"></script>
      <script type="text/javascript" src="/dwr/interface/UserDaoAjax.js"></script>另外，楼主可以访问http://127.0.0.1:8080/你的工程名/dwr/index.html
    如果你的配置都没问题，可以先在这里测试一下你配置的方法
      

  6.   


      <script type="text/javascript" src="/工程名/dwr/engine.js"></script>
      <script type="text/javascript" src="/工程名/dwr/util.js"></script>
      <script type="text/javascript" src="/工程名/dwr/interface/UserDaoAjax.js"></script>
      

  7.   

    js中应该没有boolean类型，导是有Boolean对象