Servlet action is not available问题
2008-10-30 01:38
525 查看
我的myeclipse没有把spring.jar拷贝到lib,将myeclipse安装目录下找到的spring.jar拷贝到lib中,Servlet action is not available问题解决
其他可能:
2. Servlet action is not available 问题解决
原文出处:http://blog.csdn.net/lijiuu/archive/2007/03/22/1538069.aspx
文章如下:
环境eclipse3.2+myeclipse+tomcat5.0x
重要提示:出现这个问题的原因很多,最多见的是配置文件出错不能初始化出现Servlet action is not available提示。要解决问题需要具体问题具体分析,多看容器的logs。
背景提示,我要做struts+spring+hibernate的配置,但是按照书上说的配置好了后,总是错误,提示Servlet action is not available后台log就提示2006-03-22 22:34:09 StandardWrapperValve[action]: Servlet action is currently unavailable。弄了很久没有弄好。后来看了很久的log才发现提示配置文件中有错误,所以把action设置为null。
在找这个错误,找了很久才发现:一个是
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<plug-in
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
className="org.springframework.web.struts.ContextLoaderPlugIn">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<set-property property="contextConfigLocation"
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
value="/WEB-INF/classes/applicationContext.xml" />
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</plug-in>
在struts中配置spring插件时,applicationContext.xml(spring的配置文件)位置错了,书上一般是"/WEB-INF/applicationContext.xml" 但是有的时候不是在这个下面。所以一定要自己到容器下看看具体位置。比如我的就是在web-inf/classes下。
二是:在spring的配置文件下的插入hibernate的配置文件
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<bean id="SessionFactory"
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<property name="configLocation">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<value>file:src/hibernate.cfg.xml</value>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</property>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</bean>
myeclipse自动添加的是这样的,我一直没有注意,结果应该为:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<bean id="SessionFactory"
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<property name="configLocation">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<value>file:src/hibernate.cfg.xml</value>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</property>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</bean>
提示:hibernate.cfg.xml文件的具体位置你要到容器下去看。
重要提示:
1、还有就是一定要在struts配置文件中加: <controller processorClass="org.springframework.web.struts.DelegatingRequestProcessor"/>。这样你的action才能真的委托给spring。
2、我发现我的myeclipse没有把spring.jar拷贝到lib下,以后大家出了问题可以看看。
利用spring+hibernate+struts过程中,发现一个问题,在action中将一个hibernate读取出来的ArrayList存入session:request.getSession().setAttribute("treeFromRoot", treeList.iterator());
在jsp中用标签 读取代码如下:会出现Cannot create iterator for this collection 错误,弄了一下午都没有搞定。
<logic:notEmpty name="treeFromRoot">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<logic:iterate type="edu.scnu.es.struts.vo.Tree" id="tree"
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
name="treeFromRoot">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</logic:iterate>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</logic:notEmpty>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
最后决定用JSTL试一试,代码改为:成功了。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<c:forEach items="${sessionScope.treeFromRoot}" var="treeFromRoot1">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
${treeFromRoot1.id };
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</c:forEach>
其中:edu.scnu.es.struts.vo.Tree是treeFromRoot这个list的成员的原形类。
其他可能:
2. Servlet action is not available 问题解决
原文出处:http://blog.csdn.net/lijiuu/archive/2007/03/22/1538069.aspx
文章如下:
环境eclipse3.2+myeclipse+tomcat5.0x
重要提示:出现这个问题的原因很多,最多见的是配置文件出错不能初始化出现Servlet action is not available提示。要解决问题需要具体问题具体分析,多看容器的logs。
背景提示,我要做struts+spring+hibernate的配置,但是按照书上说的配置好了后,总是错误,提示Servlet action is not available后台log就提示2006-03-22 22:34:09 StandardWrapperValve[action]: Servlet action is currently unavailable。弄了很久没有弄好。后来看了很久的log才发现提示配置文件中有错误,所以把action设置为null。
在找这个错误,找了很久才发现:一个是
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<plug-in
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
className="org.springframework.web.struts.ContextLoaderPlugIn">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<set-property property="contextConfigLocation"
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
value="/WEB-INF/classes/applicationContext.xml" />
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</plug-in>
在struts中配置spring插件时,applicationContext.xml(spring的配置文件)位置错了,书上一般是"/WEB-INF/applicationContext.xml" 但是有的时候不是在这个下面。所以一定要自己到容器下看看具体位置。比如我的就是在web-inf/classes下。
二是:在spring的配置文件下的插入hibernate的配置文件
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<bean id="SessionFactory"
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<property name="configLocation">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<value>file:src/hibernate.cfg.xml</value>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</property>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</bean>
myeclipse自动添加的是这样的,我一直没有注意,结果应该为:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<bean id="SessionFactory"
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<property name="configLocation">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<value>file:src/hibernate.cfg.xml</value>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</property>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</bean>
提示:hibernate.cfg.xml文件的具体位置你要到容器下去看。
重要提示:
1、还有就是一定要在struts配置文件中加: <controller processorClass="org.springframework.web.struts.DelegatingRequestProcessor"/>。这样你的action才能真的委托给spring。
2、我发现我的myeclipse没有把spring.jar拷贝到lib下,以后大家出了问题可以看看。
利用spring+hibernate+struts过程中,发现一个问题,在action中将一个hibernate读取出来的ArrayList存入session:request.getSession().setAttribute("treeFromRoot", treeList.iterator());
在jsp中用标签 读取代码如下:会出现Cannot create iterator for this collection 错误,弄了一下午都没有搞定。
<logic:notEmpty name="treeFromRoot">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<logic:iterate type="edu.scnu.es.struts.vo.Tree" id="tree"
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
name="treeFromRoot">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</logic:iterate>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</logic:notEmpty>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
最后决定用JSTL试一试,代码改为:成功了。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<c:forEach items="${sessionScope.treeFromRoot}" var="treeFromRoot1">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
${treeFromRoot1.id };
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</c:forEach>
其中:edu.scnu.es.struts.vo.Tree是treeFromRoot这个list的成员的原形类。
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