HTTP状态500-java.lang.ClassNotFoundException：org.apache.jsp.index_jsp

Question

我在Eclipse中（使用Tomcat 7）创建了一个JSP项目，但是当我运行该页面时，却得到了ClassnotFoundExcption。

在我的项目中，我与Controllers一起使用来将数据绑定到JSp，我有一个Controller，一个Service和一个Data-Object-> dbChanges

我已经“ google”了我的问题，却没有找到任何东西。

PS：对不起，英语不好，我已经尽力了

HTTP Status 500 - java.lang.ClassNotFoundException: org.apache.jsp.index_jsp

--------------------------------------------------------------------------------

type Exception report

message java.lang.ClassNotFoundException: org.apache.jsp.dbChanges.index_jsp

description The server encountered an internal error that prevented it from fulfilling this request.

exception 

org.apache.jasper.JasperException: java.lang.ClassNotFoundException: org.apache.jsp.dbChanges.index_jsp
    org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:177)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722)


root cause 

java.lang.ClassNotFoundException: org.apache.jsp.dbChanges.index_jsp
    java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    java.security.AccessController.doPrivileged(Native Method)
    java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:132)
    org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
    org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:172)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:722)


note The full stack trace of the root cause is available in the Apache Tomcat/7.0.30 logs.


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Apache Tomcat/7.0.30

Apache日志

Jan 14, 2014 11:33:07 AM org.apache.catalina.core.StandardWrapperValve invoke
Schwerwiegend: Servlet.service() for servlet [jsp] in context with path [/dbChanges] threw exception [java.lang.ClassNotFoundException: org.apache.jsp.index_jsp] with root cause
java.lang.ClassNotFoundException: org.apache.jsp.index_jsp
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:132)
    at org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:63)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:139)
    at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:172)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:jsp="http://java.sun.com/xml/ns/javaee/jsp"
    xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    id="WebApp_ID" version="2.5">
    <display-name>dbChanges</display-name>
    <session-config>
        <session-timeout>60</session-timeout>
    </session-config>
    <jsp-config>
        <taglib>
            <taglib-uri>http://www.springframework.org/tags/form</taglib-uri>
            <taglib-location>/META-INF/spring-form.tld</taglib-location>
        </taglib>
        <taglib>
            <taglib-uri>http://java.sun.com/jsp/jstl/core</taglib-uri>
            <taglib-location>/META-INF/c.tld</taglib-location>
        </taglib>
    </jsp-config>
    <context-param>
        <param-name>enableSessionManager</param-name>
        <param-value>false</param-value>
    </context-param>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    <error-page>
        <error-code>403</error-code>
        <location>/errors/403.html</location>
    </error-page>
    <error-page>
        <error-code>404</error-code>
        <location>/errors/404.html</location>
    </error-page>
    <!-- <error-page>
        <error-code>500</error-code>
        <location>/errors/500.html</location>
    </error-page>  -->
</web-app>

如果您需要更多信息（文件等），请说出来。

我希望你能帮助我。 黑曜石农民

Answer 1

我遇到了这个问题，因为在Eclipse配置中，我将JDK文件夹（ jdk1.6.0_45 ）设置为JRE位置。 相反，应该在我的“ Installed JRE”首选项jre6其设置为jre6 。

Answer 2

对于pom.xml具有jstl依赖关系的 Java-EE项目转换为Maven项目：就我而言，我需要将Maven依赖关系添加到构建路径

演练：

• 右键单击有问题的项目
• 打开属性
• 单击部署程序集
• 点击添加
• 选择Java构建路径条目
• 选择Maven依赖项

---

更新：还检查您的执行环境和＆工作区JRE是否正确设置。

Answer 3

1.使用“以管理员身份运行”或在Linux中使用sudo打开命令提示符

2. 转到Tomcat文件夹的“ bin”目录。 例如：cd C：\\ Program Files \\ Apache Software Foundation \\ Apache Tomcat 8.0.15 \\ bin

记下版本号和正确的位置。

3. 运行“ startup.bat”，服务器应启动

4. 打开输入http：// localhost：8080 /的网络浏览器

5. 如果服务器无例外运行，则意味着您必须赋予Eclipse管理特权。

为此，您可以访问： Windows 7-Eclipse现在需要我以管理员身份或https://askubuntu.com/questions/249098/how-do-i-run-eclipse-as-sudo 身份运行