Unable to load class for JSP!

Question

HTTP Status 500 - --------------------------------------------------------------------------------type Exception reportmessage description The server encountered an internal error () that prevented it from fulfilling this request.exception javax.servlet.ServletException: org.apache.jasper.JasperException: org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:515)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
root cause org.apache.jasper.JasperException: org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:156)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:139)
org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:348)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:504)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
root cause org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:620)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:139)
org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:348)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:504)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
root cause java.lang.ClassNotFoundException: org.apache.jsp.WEB_002dINF.web.heip.HEIP01020000_jsp
java.net.URLClassLoader$1.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(Unknown Source)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66)
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:618)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:139)
org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:348)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50)
org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:504)
org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:419)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.20 logs.

Answer 1

怎么看起来像tomcat的问题 你先重启下tomcat
另外把你相关的action代码和struts.xml发上来

Answer 2

TOMCAT重启了。还是老样子
Action代码
package cn.hit.heip.heip01.heip01020000.ac;import java.util.List;import cn.hit.com.vo.HitListDataVo;
import cn.hit.dxs100.com.vo.HitPage;
import cn.hit.heip.com.HeipConstant;
import cn.hit.heip.com.ac.HeipCommonAction;
import cn.hit.heip.heip01.heip01020000.bo.Heip01020000Bo;
import cn.hit.heip.heip01.heip01020000.vo.Heip01020000Vo;
import cn.hit.hsys.base.vo.HatSysUserInfoVo;/**
 * 通知查看更多列表页面 页面操作类
 * 
 * @author xuhaitao 2010-07-25
 * 
 */
@SuppressWarnings("serial")
public class Heip01020000Action extends HeipCommonAction {    /** 分页类 */
    private HitPage hitPage = new HitPage();    /** 通知查看更多列表页面 Vo类 */
    private Heip01020000Vo heip01020000Vo = new Heip01020000Vo();    /** 通知查看更多列表页面 Bo控制类 */
    private Heip01020000Bo heip01020000Bo = null;    /** 配置码集合 */
    private List<HitListDataVo> typeList = null;    /**
     * 页面初始方法
     * 
     * @return String
     */
    public String init() {        // Session中，取得当前工程用户信息
        HatSysUserInfoVo hatSysUserInfoVo = this.getSessionUserInfo(HeipConstant.APP_ID_HEIP);
        heip01020000Vo.setStrCreateId(hatSysUserInfoVo.getStrUserId());        // 设置分页类
        hitPage.setPageLimit(HeipConstant.PAGELIMIT_NUM);
        heip01020000Vo.setHitPage(hitPage);        // 执行初始化方法
        heip01020000Bo.init(heip01020000Vo);
        // 设置页面分页类
        this.hitPage = heip01020000Vo.getHitPage();
        // 设置通知类别下拉数据
        typeList = heip01020000Vo.getTypeList();
        // 设置页面查询条件
        setSessionQueryInfo(getClass().toString(), heip01020000Vo);
        return JSP_HEIP01020000;
    }    /**
     * 分页查询方法
     * 
     * @return 返回通知更多页面
     */
    public String page() {
        // 取得session历史
        Heip01020000Vo queryVo = (Heip01020000Vo) getSessionQueryInfo(getClass().toString());
        queryVo.setHitPage(hitPage);
        // 执行初始化方法
        heip01020000Bo.init(queryVo);
        heip01020000Vo.setStrCreateId(queryVo.getStrCreateId());
        heip01020000Vo.setDateList(queryVo.getDateList());
        // 设置通知类别下拉数据
        typeList = queryVo.getTypeList();
        // 设置页面查询条件
        setSessionQueryInfo(getClass().toString(), queryVo);
        return JSP_HEIP01020000;
    }    /**
     * 历史查询方法
     * 
     * @return 返回通知更多页面
     */
    public String back() {
        // 取得session历史
        heip01020000Vo = (Heip01020000Vo) getSessionQueryInfo(getClass().toString());
        // 执行初始化方法
        heip01020000Bo.init(heip01020000Vo);
        // 设置通知类别下拉数据
        typeList = heip01020000Vo.getTypeList();
        // 设置页面分页类
        hitPage = heip01020000Vo.getHitPage();
        return JSP_HEIP01020000;
    }    public HitPage getHitPage() {
        return hitPage;
    }    public void setHitPage(HitPage hitPage) {
        this.hitPage = hitPage;
    }    public Heip01020000Vo getHeip01020000Vo() {
        return this.heip01020000Vo;
    }    public void setHeip01020000Vo(Heip01020000Vo heip01020000Vo) {
        this.heip01020000Vo = heip01020000Vo;
    }    public Heip01020000Bo getHeip01020000Bo() {
        return this.heip01020000Bo;
    }    public void setHeip01020000Bo(Heip01020000Bo heip01020000Bo) {
        this.heip01020000Bo = heip01020000Bo;
    }    public List<HitListDataVo> getTypeList() {
        return typeList;
    }    public void setTypeList(List<HitListDataVo> typeList) {
        this.typeList = typeList;
    }
}
struts.xml<include file="config/ac/heip/heip01/Heip01020000Action.xml" /><!-- 通知单列表页面 -->
<result name="HEIP01020000">WEB-INF/web/heip/HEIP01020000.jsp</result>
<result name="HEIP01020000_INIT"type="redirect">HEIP01020000_init.hit</result>
<result name="HEIP01020000_BACK" type="redirect">HEIP01020000_back.hit</result>