目标:运行第二个struts1.x程序(struts1.3)
对象:适合自学者、初学者、兴趣爱好者。
说明:确保案例代码完整可运行
建议:初学框架,最好用Eclipse(无框架插件),秒杀MyEclipse(有框架插件),框架插件是把双刃剑,优点:入门上手快,代码生产率高,缺点:入门不利于理解框架流程和思路,IDE工具依赖性强。
理念:先行动(Coding),后理解(Thinking) ;在最短的时间内采取最大量的Coding 。分享越多,收获越大
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工程截图:
二、配置工程web.xml文件
<?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>javaee-struts1.3-start</display-name> <servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/config/struts/strutsConfig.xml</param-value> </init-param> <init-param> <param-name>debug</param-name> <param-value>2</param-value> </init-param> <init-param> <param-name>detail</param-name> <param-value>2</param-value> </init-param> <load-on-startup>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
三、编写LoginForm.java类
package com.raky.train.login; import org.apache.struts.action.ActionForm; /** * struts1.x ActionForm * @author raky * @version v1.0 * */ public class LoginForm extends ActionForm { private static final long serialVersionUID = -1162759977230749682L; private String username; private String 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; } }
四、编写LoginAction.java类
package com.raky.train.login; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.DispatchAction; /** * struts1.x LoginAction * * @author raky * @version v1.0 * */ public class LoginAction extends DispatchAction { public ActionForward login(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { ActionForward forward = null; LoginForm loginForm = (LoginForm) form; if (loginForm.getUsername().equals("admin") && loginForm.getPassword().equals("admin")) { forward = mapping.findForward("success"); request.setAttribute("loginForm", loginForm); } else { forward = mapping.findForward("failure"); } return forward; } }
五、配置strutsConfig.xml文件
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" "http://struts.apache.org/dtds/struts-config_1_3.dtd"> <struts-config> <!-- =================== Form Bean Definitions ==================== --> <form-beans> <form-bean name="loginForm" type="com.raky.train.login.LoginForm" /> </form-beans> <!-- =================== Action Definitions ==================== --> <action-mappings> <action path="/raky/train/login" name="loginForm" type="com.raky.train.login.LoginAction" parameter="method" scope="request" validate="false"> <forward name="success" path="/raky/train/login/success.jsp" /> <forward name="failure" path="/raky/train/login/failure.jsp" /> </action> </action-mappings> </struts-config>
六、 编写主页面(index.jsp)
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>index page</title> </head> <body> <jsp:forward page="/raky/train/login/login.jsp" /> </body> </html>
七、 编写登录页面(login.jsp)
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@ taglib uri="http://struts.apache.org/tags-html-el" prefix="html-el" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Raky train struts1.3 - start - Login page</title> </head> <body> <h2>raky - struts1.3 - start</h2> <html-el:form action="/raky/train/login" method="post" onsubmit="return check();"> <html-el:hidden property="method" value="login" /> <table> <tr> <td>用 户:</td> <td><html-el:text styleId="username" property="username" maxlength="40" size="18" /></td> </tr> <tr> <td>密 码:</td> <td><html-el:password styleId="password" property="password" maxlength="40" size="18" /></td> </tr> <tr> <td align="center" colspan="2"> <html-el:submit property="submitValue" >确定</html-el:submit> <html-el:reset property="resetValue" >重置</html-el:reset> </td> </tr> </table> </html-el:form> <script type="text/javascript" language="javascript"> function check(){ var username = document.getElementById("username").value; var password = document.getElementById("password").value; if(username == ""){ alert("用户名不为空!"); document.forms[0].username.focus(); return false; } if(password == ""){ alert("密码不能为空!"); document.forms[0].password.focus(); return false; } return true; } </script> </body> </html>
八、编写登录成功页面(success.jsp)
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Raky train struts1.3 - start - Login success</title> </head> <body> 用 户:${loginForm.username} 密 码:${loginForm.password} <a href="javascript:history.back(-1)">返回</a> </body> </html>
九、编写登录失败页面(failure.jsp)
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Raky train struts1.3 - start - Login failure</title> </head> <body> 用户名或密码错误啦。。。 <a href="javascript:history.back(-1)">返回</a> </body> </html>
总结:本用例程序是struts1.3,注意与之前struts1.2的区别,重点在使用标签库不同,另页面加入了简单的js验证,控制器用了DispatchAction。