相关疑难解决方法(0)

迁移到JSF 2.2后,我得到以下异常.具体来说,我正在将Mojarra 2.1.17升级到Mojarra 2.2.8.

java.lang.NoSuchMethodError: javax.faces.component.UIComponent.getPassThroughAttributes(Z)Ljava/util/Map;
    at org.primefaces.renderkit.RendererUtils.renderPassThroughAttributes(RendererUtils.java:79)
    at org.primefaces.renderkit.CoreRenderer.renderDynamicPassThruAttributes(CoreRenderer.java:119)
    at org.primefaces.renderkit.CoreRenderer.renderPassThruAttributes(CoreRenderer.java:114)
    at org.primefaces.renderkit.BodyRenderer.encodeBegin(BodyRenderer.java:44)
    at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:823)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1611)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1616)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:399)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
    at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:273)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:313)

当我检查UIComponent内部时jsf-api-2.2.8.jar,我可以看到有一种方法Map<String, Object> getPassThroughAttributes(boolean create);.

这是怎么造成的,我该如何解决？

我是JSF的新手.我正在使用Tomcat 7.0.14并尝试运行SimpleHelloByEnteringName示例但在启动时和运行时遇到以下错误

启动控制台消息:

INFO: Deploying web application directory SimpleHelloByEnteringName
Jun 15, 2011 7:35:42 AM com.sun.faces.config.ConfigureListener contextInitialized
INFO: Initializing Mojarra 2.0.3 (FCS b03) for context '/SimpleHelloByEnteringName'
Jun 15, 2011 7:35:43 AM com.sun.faces.spi.InjectionProviderFactory createInstance
INFO: JSF1048: PostConstruct/PreDestroy annotations present.  ManagedBeans methods marked with these annotations will have said annotations processed.

**Jun 15, 2011 7:35:44 AM com.sun.faces.config.processor.NavigationConfigProcessor addNavigationCasesForRule
WARNING: JSF1058: The resource referred to by to-view-id, 'result.jsp', for navigation from '/pages/inputname.jsp', does not start with '/'.  This will be added for you, but …

我跑我的JSF从外部应用2 的tomcat 6从日食 和一切工作正常,但当我尝试使用Maven的Tomcat插件

mvn tomcat:run

我在其中一个页面上遇到以下异常:

java.lang.NoSuchMethodError: javax.el.ELResolver.invoke(Ljavax/el/ELContext;Ljava/lang/Object;Ljava/lang/Object;[Ljava/lang/Class;[Ljava/lang/Object;)Ljava/lang/Object;
    at com.sun.el.parser.AstValue.getValue(AstValue.java:111)
    at com.sun.el.parser.AstValue.getValue(AstValue.java:163)
    at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:219)
    at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182)
    at javax.faces.component.UIData.getValue(UIData.java:731)
    at javax.faces.component.UIData.getDataModel(UIData.java:1798)
    at javax.faces.component.UIData.setRowIndexWithoutRowStatePreserved(UIData.java:484)
    at javax.faces.component.UIData.setRowIndex(UIData.java:473)
    at com.sun.faces.renderkit.html_basic.TableRenderer.encodeBegin(TableRenderer.java:81)
    at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:820)
    at javax.faces.component.UIData.encodeBegin(UIData.java:1118)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1754)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:401)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
    at com.ocpsoft.pretty.faces.application.PrettyViewHandler.renderView(PrettyViewHandler.java:163)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:410)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:118)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:110)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) …

我想有一个servlet来处理来自独立java程序的输入.如何在jboss中部署这个servlet.我将servlet.class文件放在WEB-INF/classes中,在web.xml中,我将servlet url映射为".do".从我的Java客户端程序,我打开使用URL对象连接到servlet.使用localhost:8080/.do.但是我得到了以下错误:

  ERROR [org.apache.catalina.connector.CoyoteAdapter] An exception or error occurred in the container during the request processing: 
  java.lang.NoSuchMethodError: javax.servlet.ServletContext.getEffectiveSessionTrackingModes()Ljava/util/Set;
            at
     org.apache.catalina.connector.CoyoteAdapter.postParseRequest(CoyoteAdapter.java:567)
            at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:359)
            at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
            at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:654)
            at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:951)

web.xml文件内容:

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "java.sun.com/j2ee/dtds/web-app_2_2.dtd">; 
<web-app> 
     <servlet>
         <servlet-name>ReverseServlet</servlet-name> 
         <servlet-class>ReverseServlet</servlet-class> 
     </servlet> 
     <servlet-mapping>
          <servlet-name>ReverseServlet</servlet-name> 
          <url-pattern>/*.do</url-pattern> 
     </servlet-mapping> 
</web-app>

当我尝试运行在tomcat内部署的项目时,我得到的错误就像

java.lang.NullPointerException
    at org.apache.jsp.index_jsp._jspInit(index_jsp.java:23)
    at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:52)
    at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:159)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859)
    at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)
    at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555)
    at java.lang.Thread.run(Thread.java:619)

我已经搜索过这个并发现它可能是servlet-api.jar和jsp-api.jar的问题,但是我已经从tomcat复制到我的项目的类路径仍然我得到了同样的错误.

Jsp:

<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
     <base href="<%=basePath%>">

    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta …

我不知道为什么它不起作用.我试图在我的servlet中接受multipart-formdata但是request.getPart("")没有显示.我正在使用glassfish 3.1.2服务器.使用的Tha框架是用于开发应用程序的vaadin.任何人都可以帮我解决这个问题吗？

我正在使用 Tomcat8 服务器，但出现以下错误。

它的网址是http://localhost:8080/WeatherWebApp当我提交详细信息时，它会出现此错误。这是 WeatherServlet.java 类

package org.akshayrahar;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class WeatherServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;

    WeatherServlet(){

    }
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("again");
        response.setContentType("text/html");
        PrintWriter out=response.getWriter();
        out.println("akshay rahar");
    }
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    }

}

这是 web.xml 文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xml>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee">
  <display-name>WeatherWebApp</display-name> …

我有一个在Tomcat 7中运行的Web应用程序.当我在我的应用程序/ WebContent/WEB-INF/lib中放置tomcat默认库(jsp-api.jar,servlet-api.jar等)时,它会引发异常: java.lang.IllegalStateException: No org.apache.tomcat.InstanceManager set in ServletContext

当我从我的lib中删除这些jar并在build.xml中设置tomcat lib时,它工作正常.任何人都可以向我解释为什么会这样吗？为什么我不能在我的lib文件夹中使用tomcat库？

由于像servlet.jar这样的jar通常不会自己下载,而是成为tomcat/lib文件夹的一部分,我应该在类路径中添加一个条目吗？这是常见的做法吗？

我用的是Ubuntu.