相关疑难解决方法(0)

我已经部署了一个Apache Wicket Web应用程序,它将Spring和Hibernate用于我的Tomcat 5.5实例.当我导航到Tomcat Manager界面时,我发现我部署的Web应用程序没有运行.当我按下"开始"时,我收到以下错误消息; "失败 - 在上下文路径/意大利面条中的应用程序无法启动".

我的catalina.log包含以下内容:

Apr 15, 2010 1:51:22 AM org.apache.catalina.loader.WebappClassLoader validateJarFile  
INFO: validateJarFile(/var/lib/tomcat5.5/webapps/spaghetti/WEB-INF/lib/jsp-api-6.0.16.jar)   - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/jsp/JspPage.class  
Apr 15, 2010 1:51:22 AM org.apache.catalina.loader.WebappClassLoader validateJarFile  
INFO: validateJarFile(/var/lib/tomcat5.5/webapps/spaghetti/WEB-INF/lib/servlet-api-6.0.16.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class  
Apr 15, 2010 1:51:24 AM org.apache.catalina.core.StandardContext start  
SEVERE: Error listenerStart  
Apr 15, 2010 1:51:24 AM org.apache.catalina.core.StandardContext start  
SEVERE: Context [/spaghetti] startup failed due to previous errors

摘自web.xml: …

我正在使用Eclipse 3.6 Helios(适用于Java开发人员),并希望将javax.servlet包添加到我的一个项目中.我需要配置/下载什么？

我已经开始编写可以在Google App Engine上运行的应用程序了.
但是当我想将我的Netbeans代码用于Eclipse时,我遇到了错误:

 import javax.servlet.annotation.WebServlet;

和

 @WebServlet(name = "MyServlet", urlPatterns = {"/MyServlet"})

错误是:

The import javax.servlet.annotation cannot be resolved
WebServlet cannot be resolved to a type

我试图将servlet-api.jar导入Eclipse,但仍然是相同的,也尝试构建和清理项目.
我不在我的Eclipse上使用Tomcat只在我的Netbeans上使用它.
我该如何解决这个问题？

我在重新启动Tomcat后向Tomcat部署文件war时遇到了韩国egovframework的问题,它显示如下错误:

2011-12-23 09:16:01,101 ERROR [org.springframework.web.servlet.DispatcherServlet] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'imageRenderer' defined in ServletContext resource [/WEB-INF/config/egovframework/springmvc/egov-com-servlet.xml]: Initialization of bean failed; nested exception is java.lang.NoSuchMethodError: javax.servlet.ServletContext.getContextPath()Ljava/lang/String;
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
        at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:442)
        at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:458)
        at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:339)
        at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:306)
        at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:127)
        at javax.servlet.GenericServlet.init(GenericServlet.java:212)
        at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1139)
        at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:791)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:660)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:469)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:403)
....................................................

我用了 :

[root@localhost bin]# java -version

java version "1.6.0_20"
OpenJDK …

我收到以下错误:

INFO:validateJarFile(C:\ dev\server\tomcat6\webapps Sempedia\WEB-INF\lib\servlet-api.jar) - jar未加载.参见Servlet Spec 2.3,sectoin 9.7.2.违规类:javax/servlet/Servlet.class

那里的现有资源说它是由于与servlet.jar的冲突或在我的情况下命名为servlet-api.jar文件.我已经从/ webapps文件夹中删除了所有其他项目,我已经获取了tomcat6/lib目录中的servlet-api.jar文件,并将其添加到项目构建路径中,所以我看不到它是怎么回事仍然是一场冲突.

当我尝试运行应用程序时,我得到以下堆栈跟踪.

org.apache.jasper.JasperException:无法为JSP编译类:

生成的java文件中的第22行发生错误方法getJspApplicationContext(ServletContext)未定义类型JspFactory

堆栈跟踪:

org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler. java:439)org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)org.apache.jasper.compiler.Compiler. compile(Compiler.java:299)org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)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)

我正在开发一个使用Apache Tomcat 7的JSP项目.

在加载index.html上运行项目时没关系,但是当尝试导航到另一个页面时,它显示错误:

对于JspFactory类型,方法getJspApplicationContext(ServletContext)是未定义的

请给我一个摆脱这个的解决方案.

为了编写servlet代码,我需要servlet-api.jar.我从哪里获得servlet-api.jar？

我正在创建我的第一个项目Java EE 7,但我遇到了麻烦.感谢任何帮助.

• Tomcat 7.0.34
• JSF 2.2
• Primefaces 3.5
• JavaEE的-API-7.0.jar

应用程序启动时,Tomcat日志显示以下消息:

"validateJarFile (C:\...\build\web\WEB-INF\lib\javaee-api-7.0.jar)-jar not loaded. See Servlet 2.3 Spec, section 9.7.2. Offending class: javax/servlet/Servlet .class"

当我点击调用托管bean的按钮时,我收到错误:

Advertência: /index.xhtml @18,66 value="#{indexMB.user}": Target Unreachable, identifier 'indexMB' resolved to null
javax.el.PropertyNotFoundException: /index.xhtml @18,66 value="#{indexMB.user}": Target Unreachable, identifier 'indexMB' resolved to null

IndexMB

@Named("indexMB")
@RequestScoped
public class IndexMB {

private String password;
private String user;

public String loginTest(){
    return (this.user.equals("admin") ? "adminPage" : "inOutPage");
}

// getters and setters
}

的index.xhtml

<html ...>

<f:loadBundle …

当我尝试在Tomcat 7上运行我的webapp时,我得到以下异常:

exception

javax.servlet.ServletException: java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;
" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/index_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for resolved class, javax/servlet/jsp/JspApplicationContext, 
have different Class objects for the type javax/el/ExpressionFactory used in the signature
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:343)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)

root cause

java.lang.LinkageError: loader constraint violation: when resolving interface method "javax.servlet.jsp.JspApplicationContext.getExpressionFactory()Ljavax/el/ExpressionFactory;" the class loader (instance of org/apache/jasper/servlet/JasperLoader) of the current class, org/apache/jsp/index_jsp, and the class loader (instance of org/apache/catalina/loader/StandardClassLoader) for …

我刚刚得到了tomcat 7.0.27.我有时间开始tomcat 45秒.此外,它在tomcat上的旧版本运行正常.但运行它我得到以下错误:

SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/VotingApp]]
    at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
    at java.util.concurrent.FutureTask.get(FutureTask.java:83)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1128)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:782)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1566)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1556)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:680)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/VotingApp]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    ... 7 more
Caused by: java.lang.NoClassDefFoundError: HttpServletRequest
    at java.lang.Class.getDeclaredMethods0(Native Method)
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
    at java.lang.Class.getDeclaredMethods(Class.java:1791)
    at org.apache.catalina.startup.WebAnnotationSet.getDeclaredMethods(WebAnnotationSet.java:470)
    at org.apache.catalina.startup.WebAnnotationSet.loadMethodsAnnotation(WebAnnotationSet.java:275)
    at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:137)
    at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:66)
    at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:381)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:858)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:345)
    at …