我得到下面的錯誤,當我嘗試在我的Struts2的應用錯誤與Struts2的應用
異常顯示java.lang.NullPointerException org.apache.struts2.impl.StrutsActionProxy的index.jsp的執行測試行動。 (錯誤消息) .impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:39) com.opensymphony.xwork2.DefaultActionProxyFactory.createAct ionProxy(DefaultActionProxyFactory.java:58) org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:500) org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher
下面是我的struts.xml和web.xml文件。你能告訴我,如果事情是錯與他們
struts.xml的
<?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="tester" extends="struts-default">
<action name="tester" class="com.siebel.WebService.Tester" method="execute">
<result name="success">/success.jsp</result>
</action>
</package>
</struts>
的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>Framework Application</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
的index.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page import="java.sql.Connection"%>
<%@ page import="java.sql.DriverManager"%>
<%@ page import="java.sql.ResultSet"%>
<%@ page import="java.sql.Statement"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
</head>
<body>
<form action = "tester">
<h1>Test Page</h1>
Enter the parameter value:<input id="formParameter" type="text" title="attribute"/>
<button>Call WebService</button>
</form>
</body>
</html>
哪個S2版本? 'FilterDispatcher'從Struts 2.1.3開始被棄用。 –
是S2版本。我應該用什麼來代替FilterDispatcher? –
https://struts.apache.org/docs/webxml.html。 –