下面是控制台显示的内容,调试了好久,也没解决java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at java.net.Socket.connect(Socket.java:469)
at java.net.Socket.<init>(Socket.java:366)
at java.net.Socket.<init>(Socket.java:180)
at com.chat.client.Register.jButton1_mouseClicked(Register.java:157)
at com.chat.client.Register$1.mouseClicked(Register.java:98)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253)
at java.awt.Component.processMouseEvent(Component.java:6219)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
at java.awt.Component.processEvent(Component.java:5981)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4583)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4413)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4556)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4229)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4150)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2475)
at java.awt.Component.dispatchEvent(Component.java:4413)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
注册时IO出错

解决方案 »

  1.   


    恩,不知道咋弄的。我跑整个工程控制台显示这些,搞不懂,搞的很疲劳
    Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
    at org.springframework.util.ClassUtils.<clinit>(ClassUtils.java:67)
    at org.springframework.core.io.DefaultResourceLoader.<init>(DefaultResourceLoader.java:52)
    at org.springframework.context.support.AbstractApplicationContext.<init>(AbstractApplicationContext.java:184)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.<init>(AbstractRefreshableApplicationContext.java:80)
    at org.springframework.context.support.AbstractXmlApplicationContext.<init>(AbstractXmlApplicationContext.java:58)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:89)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:75)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:65)
    at com.chat.util.ControlServiceFactory.getInstance(ControlServiceFactory.java:13)
    at com.chat.server.ServerUI.<init>(ServerUI.java:92)
    at com.chat.server.ServerUI.main(ServerUI.java:53)
    Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
    ... 11 more
      

  2.   


    我怀疑是我电脑上装的JDK版本与开发时用的版本有出入
    请问如何通过源代码知道开发时的JDK版本呢?
      

  3.   

    你的聊天程序是不是应该有个服务器程序,专门负责用Socket发送消息。 一个客户端程序,负责展示消息。你不是只拿到了客户端程序了,没有拿到服务器程序吧。出现的异常,像是少了一个jar包。 commons-logging-1.1.1.jar 上网搜索一下,试一试。
      

  4.   


    老大,你说的很管用,加上这个包之后,运行客户端程序就没有问题了,但是服务端程序无法正常加载,显示如下,麻烦您再帮忙看下,万分感谢2011-5-9 12:38:10 org.springframework.context.support.AbstractApplicationContext prepareRefresh
    信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@530cf2: display name [org.springframework.context.support.ClassPathXmlApplicationContext@530cf2]; startup date [Mon May 09 12:38:10 CST 2011]; root of context hierarchy
    2011-5-9 12:38:10 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
    信息: Loading XML bean definitions from class path resource [applicationContext.xml]
    2011-5-9 12:38:11 org.springframework.context.support.AbstractApplicationContext obtainFreshBeanFactory
    信息: Bean factory for application context [org.springframework.context.support.ClassPathXmlApplicationContext@530cf2]: org.springframework.beans.factory.support.DefaultListableBeanFactory@32060c
    2011-5-9 12:38:11 org.springframework.beans.factory.support.DefaultListableBeanFactory preInstantiateSingletons
    信息: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@32060c: defining beans [dataSource,mySessionFactory,myTransactionManager,userDao,userService,controlService]; root of factory hierarchy
    2011-5-9 12:38:11 org.springframework.beans.factory.support.DefaultSingletonBeanRegistry destroySingletons
    信息: Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@32060c: defining beans [dataSource,mySessionFactory,myTransactionManager,userDao,userService,controlService]; root of factory hierarchy
    Exception in thread "main" org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.apache.commons.dbcp.BasicDataSource] for bean with name 'dataSource' defined in class path resource [applicationContext.xml]; nested exception is java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource
    Caused by: java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
    at org.springframework.util.ClassUtils.forName(ClassUtils.java:201)
    at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:327)
    at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1075)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:282)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:91)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:75)
    at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:65)
    at com.chat.util.ControlServiceFactory.getInstance(ControlServiceFactory.java:13)
    at com.chat.server.ServerUI.<init>(ServerUI.java:92)
    at com.chat.server.ServerUI.main(ServerUI.java:53)
      

  5.   

    这是applicationContext.xml<?xml version="1.0" encoding="UTF-8"?>
    <beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
    <!-- 鏁版嵁婧?-->
    <bean id="dataSource"
    class="org.apache.commons.dbcp.BasicDataSource">
    <property name="driverClassName">
    <value>com.mysql.jdbc.Driver</value>
    </property>
    <property name="url">
    <value>jdbc:mysql://127.0.0.1:3306/lunwen</value>
    </property>
    <property name="username">
    <value>root</value>
    </property>
    <property name="password">
    <value></value>
    </property>
    </bean>

    <!-- Session宸ュ巶 -->
    <bean id="mySessionFactory"
    class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="dataSource">
    <ref bean="dataSource" />
    </property>
    <property name="mappingResources">
    <list>
    <value>com/chat/entity/Friend.hbm.xml</value>
    <value>com/chat/entity/User.hbm.xml</value>
    </list>
    </property>
    <property name="hibernateProperties">
    <props>
    <prop key="hibernate.dialect">
    org.hibernate.dialect.MySQLDialect
    </prop>
    <prop key="hibernate.show_sql">false</prop>
    <!--<prop key="hibernate.hbm2ddl.auto">create-drop</prop>
    --></props>
    </property>
    </bean>

    <!-- Transacton Manager --><!-- 浜嬪姟绠$悊 -->

    <bean id="myTransactionManager"
    class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory">
    <ref bean="mySessionFactory" />
    </property>
    </bean>

    <!-- DAO -->
    <bean id="userDao" class="com.chat.dao.impl.UserDaoImpl">
    <property name="sessionFactory" ref="mySessionFactory"></property>
    </bean>

    <!-- Service -->
    <bean id="userService" class="com.chat.service.impl.UserServiceImpl">
    <property name="userDao" ref="userDao"></property>
    </bean>

    <bean id="controlService" class="com.chat.server.ControlServiceImpl">
    <property name="userService" ref="userService"></property>
    </bean>

    </beans>
      

  6.   

    Caused by: java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource
    缺少jar包commons.dbcp.jar
      

  7.   

    缺少jar包commons-dbcp-1.2.1.jar
    楼主下个就可以了
    另外:楼主最好commons-beanutils
    commons-collections
    commons-dbcp
    commons-pool
    都下载下来可能目前有些不需要,但会有用的
      

  8.   

    今天忙一天,每时间逛论坛。 你既然用了DBCP的连接池,那当然也要加入包里啊。 除了我上面说的 commons-logging-1.1.1.jar外。还有 commons-dbcp-1.4.jar
    commons-collections-3.1.jar
    commons-pool-1.5.4.jar
      

  9.   

    个人不推荐使用DBCP连接池,推荐C3p0。 c3p0于Spring的集成可谷歌!