java.lang.NullPointerException org.apache.tiles.definition.UnresolvingLocaleDefinitionsFactory.getDefinition

Question

Ich verwende struts2 + Integration für mein Projekt Hibernate und hatte Kacheln in diesem implementiert, aber angesichts dieses Problem

struts.xml

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE struts PUBLIC 
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" 
    "http://struts.apache.org/dtds/struts-2.0.dtd"> 

<struts> 
    <constant name="struts.devMode" value="true" /> 

    <package name="default" extends="hibernate-default"> 

     <result-types> 
      <result-type name="tiles" 
       class="org.apache.struts2.views.tiles.TilesResult" /> 
     </result-types> 

     <action name="*Menu" method="{1}" 
      class="com.struts2hibernatepagination.action.MenuAction"> 
      <result name="tiger" type="tiles">tiger</result> 
      <result name="lion" type="tiles">lion</result> 
     </action> 

     <action name="addStudent" method="execute" 
      class="com.struts2hibernatepagination.action.AddStudentAction"> 
      <interceptor-ref name="defaultStackHibernateStrutsValidation"> 
       <param name="validation.excludeMethods">listStudents</param> 
       <param name="validation.excludeMethods">fetchStudentList</param> 
      </interceptor-ref> 
      <result name="success" type="redirect"> 
       listStudents 
      </result> 
      <result name="input">/student.jsp</result> 
     </action> 

     <action name="listStudents" method="listStudents" 
      class="com.struts2hibernatepagination.action.AddStudentAction"> 
      <interceptor-ref name="basicStackHibernate" /> 
      <result name="success">/student.jsp</result> 
      <result name="input">/student.jsp</result> 
     </action> 

     <action name="fetchStudentList" 
      class="com.struts2hibernatepagination.action.AddStudentAction" 
      method="listStudents"> 
      <interceptor-ref name="basicStackHibernate" /> 
      <result name="success">/displaytag.jsp</result> 
      <result name="input">/student.jsp</result> 
     </action> 

     <action name="listStudentByName" 
      class="com.struts2hibernatepagination.action.AddStudentAction" 
      method="edit"> 
      <interceptor-ref name="basicStackHibernate" /> 
      <result name="success">/searchStudent.jsp</result> 
      <result name="input">/searchStudent.jsp</result> 
     </action> 

     <action name="studentFirstNameList" 
      class="com.struts2hibernatepagination.action.AddStudentAction" 
      method="studentFirstName"> 
      <interceptor-ref name="basicStackHibernate" /> 
      <result name="success">/searchStudent.jsp</result> 
     </action> 

    </package> 
</struts> 

tiles.xml

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

<!DOCTYPE tiles-definitions PUBLIC 
    "-//Apache Software Foundation//DTD Tiles Configuration 2.0//EN" 
    "http://tiles.apache.org/dtds/tiles-config_2_2.dtd"> 

<tiles-definitions> 

    <definition name="baseLayout" template="/baseLayout.jsp"> 
     <put-attribute name="title" value="Template" /> 
     <put-attribute name="banner" value="/banner.jsp" /> 
     <put-attribute name="menu" value="/menu.jsp" /> 
     <put-attribute name="body" value="/body.jsp" /> 
     <put-attribute name="footer" value="/footer.jsp" /> 
    </definition> 

    <definition name="tiger" extends="baseLayout"> 
     <put-attribute name="title" value="Tiger" /> 
     <put-attribute name="body" value="/tiger.jsp" /> 
    </definition> 

    <definition name="lion" extends="baseLayout"> 
     <put-attribute name="title" value="Lion" /> 
     <put-attribute name="body" value="/lion.jsp" /> 
    </definition> 

</tiles-definitions> 

web.xml

<?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
    id="WebApp_ID" version="2.5"> 
    <display-name>Struts2Example17</display-name> 

    <context-param> 
    <param-name> 
     org.apache.tiles.impl.BasicTilesContainer.DEFINITIONS_CONFIG 
    </param-name> 
    <param-value> 
     /WEB-INF/tiles.xml 
    </param-value> 
    </context-param> 

    <listener> 
    <listener-class> 
     org.apache.struts2.tiles.StrutsTilesListener 
    </listener-class> 
    </listener> 


    <filter> 
     <filter-name>struts2</filter-name> 
     <filter-class> 
      org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 
     </filter-class> 
    </filter> 
    <filter-mapping> 
     <filter-name>struts2</filter-name> 
     <url-pattern>/*</url-pattern> 
    </filter-mapping> 

    <welcome-file-list> 
     <welcome-file>student.jsp</welcome-file> 
    </welcome-file-list> 
</web-app> 

MenuAction.java

package com.struts2hibernatepagination.action; 

import com.opensymphony.xwork2.ActionSupport; 

public class MenuAction extends ActionSupport { 

    public String tiger() { 
     return "tiger"; 
    } 

    public String lion() { 
     return "lion"; 
    } 

} 

banner.jsp

<%@ 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"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 
<title>Insert title here</title> 
</head> 
<body> 
<img src="http://www.tutorialspoint.com/images/tp-logo.gif"/> 
</body> 
</html> 

baseLayout.jsp

<%@ taglib uri="http://tiles.apache.org/tags-tiles" prefix="tiles"%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 
<title><tiles:insertAttribute name="title" ignore="true" /></title> 
</head> 
<body> 
    <tiles:insertAttribute name="banner" /> 
    <br /> 
    <hr /> 
    <tiles:insertAttribute name="menu" /> 
    <br /> 
    <hr /> 
    <tiles:insertAttribute name="body" /> 
    <br /> 
    <hr /> 
    <tiles:insertAttribute name="footer" /> 
    <br /> 
</body> 
</html> 

lion.jsp

<%@ 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"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 
<title>Insert title here</title> 
</head> 
<body> 
<img src="http://upload.wikimedia.org/wikipedia/commons/d/d2/Lion.jpg"/> 
The lion 
</body> 
</html> 

menu.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" 
    pageEncoding="ISO-8859-1"%> 
<%@taglib uri="/struts-tags" prefix="s"%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 
<title>Insert title here</title> 
</head> 
<body> 
    <a href="<s:url action="tigerMenu"/>">Tiger</a> 
    <br> 
    <a href="<s:url action="lionMenu"/>">Lion</a> 
    <br> 
</body> 
</html> 

tiger.jsp

<%@ 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"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 
<title>Insert title here</title> 
</head> 
<body> 
    <img src="http://www.freewebs.com/tigerofdarts/tiger.jpg" /> The tiger 
</body> 
</html> 

Liste der Bibliotheken, die ich in meinem Projekt verwendet haben

Hier ist der Snap, nachdem ich versuchen, zuzugreifen http://localhost:8080/Struts2HibernatePagination/tigerMenu.action

Kann mir bitte jemand sagen, warum ich diese Ausnahme bekomme, da ich von den letzten 2 Tagen daran festhalte und viele Bibliotheken gewechselt habe, aber nichts funktioniert !! .. Bitte helfen !! :(

Answer 1

Ich habe die Bibliotheken mit

ersetzt

1. struts2-Fliesen-plugin-2.1.6.jar
2. Fliesen-api-2.1.2.jar
3. Fliesen-Verein- 2.1.2.jar
4. Fliesen-Core-2.1.2.jar
5. Fliesen-jsp-2.1.2.jar
6. Fliesen-Servlet-2.1.2.jar

und es funktionierte!

Es funktionierte nicht mit Kacheln 2.2 Gläser