zoukankan      html  css  js  c++  java
  • JSP异常之org.apache.jasper.JasperException(转)

    According to TLD or attribute directive in tag file, attribute items does not accep t any expressions

    1. 严重: Servlet.service() for servlet jsp threw exception
    2. org.apache.jasper.JasperException: /selectorTagtest.jsp(26,8) According to TLD or attribute directive in tag file, attribute items does not accep
    3. t any expressions
    4.      at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
    5.      at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
    6.      at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
    7.      at org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1172)
    8.      at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:819)
    9.      at org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1512)
    10.      at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2343)
    11.      at org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2393)
    12.      at org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2399)
    13.      at org.apache.jasper.compiler.Node$Root.accept(Node.java:489)
    14.      at org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2343)
    15.      at org.apache.jasper.compiler.Validator.validate(Validator.java:1737)
    16.      at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:165)
    17.      at org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)
    18.      at org.apache.jasper.compiler.Compiler.compile(Compiler.java:294)
    19.      at org.apache.jasper.compiler.Compiler.compile(Compiler.java:281)
    20.      at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)
    21.      at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
    22.      at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)
    23.      at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
    24.      at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
    25.      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    26.      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    27.      at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
    28.      at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)
    29.      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    30.      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    31.      at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:413)
    32.      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    33.      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    34.      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    35.      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    36.      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
    37.      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    38.      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    39.      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
    40.      at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
    41.      at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
    42.      at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
    43.      at java.lang.Thread.run(Thread.java:595)

    解决方法:

    <%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
    改为:
    <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>

    另一篇描述比较透彻的分析如下:

      

    环境: win2003 tomcat 5.5 JDK1.6上 
    <?xml version="1.0" encoding="UTF-8"?>
    <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 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >
    </web-app>
    jsp代码:

    <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>   

    1+2+3 = ${1+2+3} <br>   

    1+2+3 = <c:out value="6" /> <br>

    此时执行没有任何问题。

     1+2+3 = <c:out value="${1+2+3}" />执行时就会出现:

    According to TLD or attribute directive in tag file, attribute value does not accept any expressions

    昨天少了一个jsp,所以一直出现问题。

    代码

    <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>    

    写成   

    <%@taglib prefix="c" uri="http://java.sun.com/jstl/core" %>  

    今天再试。发现JSTL1.1可以用。但是用JSTL1.0时,出现问题。

    就是把JSTL1.1的库放到/WEB-INF/lib/ 下。

    刚开始我是netbeans 5.5.1中的JSTL库拷贝出来发现可以用。后来用jstl1.1.2的库,也是可以用。

    总结:

    JSTL1.1的库 在JSP2.0(Servlet 2.4)及以后(推荐用JSTL1.1及以上)用:

    代码

    <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>  

    web.xml

    <?xml version="1.0" encoding="UTF-8"?>

    <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 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >

    </web-app>

    在 Servlet2.3及以前,

    代码

    <%@taglib prefix="c" uri="http://java.sun.com/jstl/core" %>  

    比2.4以后版本少了jsp

    web.xml

    <?xml version="1.0" encoding="UTF-8"?>  

    <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">  

    <web-app>        

    </web-app>  

    在Servlet2.3中最好用JSTL1.0,如果用JSTL1.1,请加上

    <?xml version="1.0" encoding="UTF-8"?>  

    <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">  

    <web-app>       

        <taglib>  

            <taglib-uri>http://java.sun.com/jsp/jstl/core</taglib-uri>  

            <taglib-location>/WEB-INF/c.tld</taglib-location>  

        </taglib>  

    </web-app> 

    把tld目录下的c.tld拷贝到/WEB-INF?下。

     找到官方下载地址:

    http://jakarta.apache.org/site/downloads/downloads_taglibs.html

    选择 Standard 1.0 Taglib 和Standard 1.1 Taglib 可以下载jstl1.0和jstl1.1版本。

    According to TLD or attribute directive in tag file, attribute page does not accept any expressions

    说的是对应tag的属性不支持表达式传入。解决的办法是,在tld文件的相应tag的相应属性中加上rtexprvalue属性并设置为true,比如:

    <tag>

     <name>CustomTag</name>

     ……

     <attribute>

      <name>AttName</name>

      <rtexprvalue>true</rtexprvalue>

     </attribute>

    </tag>

    网上说这个和Tomcat的版本也有关系(5.x),我用的恰好是5.0.27,不过这个没有证实过。

    应用部署运行的时候出现JSP异常, 发生在使用JSTL库的时候: According to TLD or attribute directive in tag file, attribute value does not accept any expressions, 可能是因为使用了JSP2.0版本, 同时又没有使用JSTL core库的备用版本(RT库), 以下有两种处理方法:

    1. 修改web.xml.

    <web-app

    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 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">

    改为2.3版本的

    <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">

    <web-app>

    2. 使用JSTL core RT库

    JSTL core库的有两种taglib伪指令, 其中RT库即是依赖于JSP传统的请求时属性值, 而不是依赖于EL来实现(称为EL库.JSP2.0将支持EL)

    JSP中使用<%@ taglib uri=http://java.sun.com/jstl/core prefix="c"%>在2.3版本都可以,在2.4就不行了, 难道是版本不兼容吗?

    只要将

    <%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

    改为

    <%@ taglib uri=http://java.sun.com/jstl/core_rt prefix="c"%>

    就没有问题了

    转载自:http://www.cnblogs.com/fish-king/archive/2013/01/16/2862686.html

  • 相关阅读:
    CF611C New Year and Domino
    CF706C Hard problem (状态机dp)
    CF467C George and Job (dp)
    Vue的响应式系统
    如何更好的使用js?
    关于JS变量和作用域详解
    运算符的应用及流程控制if,switch语句
    js闭包
    js的基础
    js的使用及语法
  • 原文地址:https://www.cnblogs.com/yueguanguanyun/p/7119456.html
Copyright © 2011-2022 走看看