新建动态web项目;

输入项目名称;
New Runtime后选择如下,
选择tomcat的安装目录;
然后如下,完成;
当前的目录结构如下;之前要配置好java环境;
如果创建项目时没有选中生成web.xml,右击项目文件夹,选择如下菜单,生成web.xml;
把struts2的包拷贝到lib文件夹下,然后刷新一下,会显示出来;
选中所有的包,右击,选择如下菜单,把包加入项目;
在src文件夹下创建struts.xml,
struts.xml,
- "1.0" encoding="UTF-8"?>
- struts PUBLIC
- "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"
- "http://struts.apache.org/dtds/struts-2.5.dtd">
- <struts>
-
- <constant name="struts.enable.DynamicMethodInvocation" value="true" />
- <package name="default" namespace="/" extends="struts-default">
- <action name="login" class="com.example.struts2.LoginAction" method="login">
- <result name="success">/success.jspresult>
- <result name="error">/error.jspresult>
- action>
- package>
- struts>
右击src文件夹,创建新的包,
输入包名,
Finish之后如下,
右击新创建的包,创建新的类,
输入类名;
- package com.example.struts2;
-
- import javax.servlet.http.HttpServletRequest;
- import org.apache.struts2.ServletActionContext;
-
- public class LoginAction {
-
- HttpServletRequest req = ServletActionContext.getRequest();
- String username = req.getParameter("username");
- String password = req.getParameter("password");
-
- public String getUsername() {
- return username;
- }
-
- public void setUsername(String username) {
- this.username = username;
- }
-
- public String getPassword() {
- return password;
- }
-
- public void setPassword(String password) {
- this.password = password;
- }
-
- public String login(){
- if("xiaoBaby".equals(username)
- && "123456".equals(password)){
- return "result";
- }else{
- return "error";
- }
- }
-
- }
然后再创建3个jsp;
index.jsp,
- <%@ page language="java" contentType="text/html;charset=UTF-8" pageEncoding="UTF-8"%>
- 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=UTF-8">
- <title>Insert title heretitle>
- head>
- <body>
- <form action="login.action" method="post">
- 用户名:<input type="text" name="username">
- 密码:<input type="text" name="password">
- <input type="submit" value="提交">
- form>
- body>
- html>
success.jsp和error.jsp简单化,在
之间添加一个字符串即可;此时项目结构如下,
还有web.xml代码;
- "1.0" encoding="UTF-8"?>
- <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" version="3.1">
- <display-name>stsdisplay-name>
-
- <filter>
- <filter-name>struts2filter-name>
- <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilterfilter-class>
-
- filter>
- <filter-mapping>
- <filter-name>struts2filter-name>
- <url-pattern>/*url-pattern>
- filter-mapping>
-
- <welcome-file-list>
- <welcome-file>index.htmlwelcome-file>
- <welcome-file>index.htmwelcome-file>
- <welcome-file>index.jspwelcome-file>
- <welcome-file>default.htmlwelcome-file>
- <welcome-file>default.htmwelcome-file>
- <welcome-file>default.jspwelcome-file>
- welcome-file-list>
- web-app>
然后右击项目文件夹,选择如下菜单,
出现如下对话框,Finish;
index.jsp不会出来,查看控制台输出,包含一个错误,
java.lang.ClassNotFoundException: .apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter,
我想把web.xml中的
改为
org.apache.struts2.dispatcher.FilterDispatcher
然后再重新运行,又出现下图错误;有时间继续;