mysql - 在 Java Web 应用程序上出现错误 [无法为 JSP 编译类] 的根本原因

Question

我使用带有 MYSQL 数据库的 hibernate 框架开发了一个 Web 应用程序，并遵循配置和 geeting 跟随错误。 这在重新启动 tomcat 服务器后有效。 这是仅有的内容...

    error.xhtml
    index.xhtml
    result.jsp

    hibernate.cfg.xml

    pdr
        AccActivate.java
        AccountBean.java
    pdr.config
        Config.java
    pdr.entity
        AccountDAO.java
        CustomerAccountDAO.java
        CustomerDAO.java
        NfcAccountDAO.java
    pdr.entity.sql    
        DuplicateEntry.java
        SQLExceptionTypeDelegate.java
    pdr.pojo
        Account.java
        Customer.java
        CustomerAccount.hbm
        CustomerAccount.java
        NfcAccount.java
        account.hbm
        customer.hbm
        nfc_account.hbm
    pdr.util
        ExceptionFiner.java
        HibernateUtil.java
    pdr.util.logger
        Log.java
        MyHtmlFormatter.java
        MyHtmlFormatterExample.java
        MyLogger.java
        MyTestLogger.java
        UseLogger.java

Tomcat :

使用 CATALINA_BASE:/opt/apache-tomcat-7.0.65

使用 CATALINA_HOME:/opt/apache-tomcat-7.0.65

使用 CATALINA_TMPDIR:/opt/apache-tomcat-7.0.65/temp

使用 JRE_HOME:/usr/java/jdk1.8.0_65/

使用 CLASSPATH:/opt/apache-tomcat-7.0.65/bin/bootstrap.jar:/opt/apache-tomcat-7.0.65/bin/tomcat-juli.jar

服务器版本:Apache Tomcat/7.0.65

服务器构建: 2015 年 10 月 9 日 08:36:58 UTC

服务器编号: 7.0.65.0

操作系统名称: Linux

操作系统版本: 2.6.32-573.7.1.el6.x86_64

架构:amd64

JVM 版本: 1.8.0_65-b17

JVM 供应商: Oracle Corporation

MySQL:

服务器版本 5.1.73 协议(protocol)

版本 10 通过 UNIX socket UNIX 连接本地主机

套接字/var/lib/mysql/mysql.sock

Java:

javac 版本 1.8.0_65

java 版本 1.8.0_65

-Java(TM) SE 运行时环境(build 1.8.0_65-b17)

-Java HotSpot(TM) 64 位服务器虚拟机(构建 25.65-b01，混合模式)

操作系统

分销商 ID: RedHatEnterpriseServer

版本: 6.7

系统变量

回显 $JAVA_HOME

/usr/java/jdk1.8.0_65/

回显 $PATH

/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/usr/java/jdk1.8.0_65//bin:

Dec 22, 2015 5:41:34 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/] threw exception [Unable to compile class for JSP] with root cause
java.lang.IllegalArgumentException: Negative time
    at java.io.File.setLastModified(File.java:1427)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:377)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)
    at org.apache.jasper.compiler.Compiler.compile(Compiler.java:341)
    at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:662)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:364)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)

Dec 22, 2015 5:41:34 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [jsp] in context with path [/] 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.findClass(URLClassLoader.java:381)
    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:121)
    at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:172)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:376)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)

Answer 1

您真正的问题是:java.lang.ClassNotFoundException: org.apache.jsp.index_jsp。

您已表明正在使用:

Using JRE_HOME: /usr/java/jdk1.8.0_65/

Tomcat需要将jsp文件编译成servlets，所以需要JDK和JAVA_HOME。看来您使用的是 JDK，而是定义了 JRE_HOME。

确保您使用的是 JDK 而不仅仅是 JRE，并正确设置 JAVA_HOME。