Java 找不到Struts 2-/Struts标记-ClassNotFoundException_Java_Xml_Jsp_Tomcat_Struts2

Java 找不到Struts 2-/Struts标记-ClassNotFoundException

java xml jsp tomcat struts2

Java 找不到Struts 2-/Struts标记-ClassNotFoundException,java,xml,jsp,tomcat,struts2,Java,Xml,Jsp,Tomcat,Struts2,我试图让struts 2示例正常工作，但在Tomcat中运行代码时出现以下错误未找到HTTP Status 500-/porject/index.jsp（第4行，第41列）文件“/struts标记” type Exception report message /porject/index.jsp (line: 4, column: 41) File "/struts-tags" not found description The server encountered an internal

我试图让struts 2示例正常工作，但在Tomcat中运行代码时出现以下错误

未找到HTTP Status 500-/porject/index.jsp（第4行，第41列）文件“/struts标记”

type Exception report

message /porject/index.jsp (line: 4, column: 41) File "/struts-tags" not found

description The server encountered an internal error (/porject/index.jsp (line: 4, column: 41) File "/struts-tags" not found) that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: /porject/index.jsp (line: 4, column: 41) File "/struts-tags" not found
    org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:42)
    org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:408)
    org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:133)
    org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:166)
    org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:410)
    org.apache.jasper.compiler.Parser.parseDirective(Parser.java:475)
    org.apache.jasper.compiler.Parser.parseElements(Parser.java:1427)
    org.apache.jasper.compiler.Parser.parse(Parser.java:138)
    org.apache.jasper.compiler.ParserController.doParse(ParserController.java:242)
    org.apache.jasper.compiler.ParserController.parse(ParserController.java:102)
    org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:373)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
    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)

这是我的

index.jsp

，其中说明了错误

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Struts 2 Example</title>
</head>
<body>
<s:action name="HelloWorldAction" executeResult="true"></s:action>
</body>
</html>

“lib目录”是指

WEB-INF/lib

（至少在部署之后）？是的，它被放置在

WEB-INF/lib

中。您确定它被正确部署了吗？TLD在核心库中。您能解释一下正确部署是什么意思吗？抱歉，这是我第一次使用java struts；先把它们修好。此外，您还需要commons io。

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Struts 2 Example</title>
</head>
<body>
<s:action name="HelloWorldAction" executeResult="true"></s:action>
</body>
</html>

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


type Exception report

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

description The server encountered an internal error (java.lang.ClassNotFoundException: org.apache.jsp.porject.index_jsp) that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: java.lang.ClassNotFoundException: org.apache.jsp.porject.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.porject.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)