Question

MyEclipse9.0 配置struts2.1 spring3.0 hibernate3.3 出现错误了……急救

信息: Initializing Spring root WebApplicationContext
log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).
log4j:WARN Please initialize the log4j system properly.
2011-10-13 16:25:41 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring root WebApplicationContext
log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).
log4j:WARN Please initialize the log4j system properly.
2011-10-13 16:25:48 org.apache.catalina.core.StandardContext filterStart
严重: Exception starting filter struts2
java.lang.RuntimeException: com.opensymphony.xwork2.inject.DependencyException: com.opensymphony.xwork2.inject.ContainerImpl$MissingDependencyException: No mapping found for dependency [type=org.apache.struts2.views.velocity.VelocityManager, name='default'] in public void org.apache.struts2.osgi.OsgiConfigurationProvider.setVelocityManager(org.apache.struts2.views.velocity.VelocityManager). - Class: com.opensymphony.xwork2.inject.ContainerBuilder$4
File: ContainerBuilder.java
Method: create
Line: 132 - com/opensymphony/xwork2/inject/ContainerBuilder.java:132:-1
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:428)
at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190)
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" 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_3_0.xsd">
<!--Struts2与Spring 整合 <context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param> -->
<!--整合Spring与Struts2的类自动加载器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

Answer 1

这是一个常见的错误，没有加入velocity-tools.jar包。
跟你的stuts2版本有关，struts2.2.3 发布包及其以前版本中没有velocity-tools.jar这个包，要手动下载加入。楼主检查一下lib下，看有没有此包，如果没有，加入后再试试看，应该不会出现这个问题的。

Answer 2

是服务器启动出错吗？看下你的struts2的配置文件上的package 是不是少了 name="struts2" extends="struts-default"这两个属性的配置！