MVC循序渐进(环境篇) eclipse+tomcat(一) MVC循序渐进(jsp model1实现的登录)(二) MVC循序渐进(jsp model2实现的登录)(三)
为了以后比较分析,我把所有的实现代码放到一个web应用程序中,所以看这篇文章前请看以上系列文章。
一、安装webwork
http://opensymphony.com/webwork/ 下载最新版本的webwork 解压
我们用到的jar包有
lib/core 下所有jar包 和 webwork-2.1.7.jar
拷贝到WEB-INF/lib 文件夹下。
二、配置 webapp\WEB-INF\web.xml webapp\WEB-INF\classes\ xwork.xml(webapp\WEB-INF\src\ xwork.xml 建立 eclipse编译自动放到classes目录下)
webapp\WEB-INF\web.xml **************************************************************** <?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"> <web-app> <display-name>Examples</display-name> <description>Examples. </description> <servlet> <servlet-name>webwork</servlet-name> <servlet-class>com.opensymphony.webwork.dispatcher.ServletDispatcher</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet> <servlet-name>LoginServlet</servlet-name> <servlet-class>model2.LoginServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>webwork</servlet-name> <url-pattern>*.webwork</url-pattern> </servlet-mapping> <servlet-mapping> <servlet-name>LoginServlet</servlet-name> <url-pattern>/model2/LoginServlet</url-pattern> </servlet-mapping> <taglib> <taglib-uri>webwork</taglib-uri> <taglib-location>/WEB-INF/lib/webwork-2.1.7.jar</taglib-location> </taglib> </web-app> ************************************************************************
webapp\WEB-INF\classes\ xwork.xml(webapp\WEB-INF\src\ xwork.xml 建立 eclipse编译自动放到classes目录下) ********************************************************************** <!DOCTYPE xwork PUBLIC "-//OpenSymphony Group//XWork 1.0//EN" "http://www.opensymphony.com/xwork/xwork-1.0.dtd">
<xwork> <include file="webwork-default.xml" /> <package name="default" extends="webwork-default"> <default-interceptor-ref name="defaultStack" /> <action name="login" class="webwork.LoginAction"> <result name="error" type="dispatcher">login.jsp</result> <result name="success" type="dispatcher">succeed.jsp</result> </action> </package> </xwork> ************************************************************************* 其他webwork.properties,validators.xml等配置在以后介绍
三、所有程序 webapp\webwork\ login.jsp webapp\webwork\ succeed.jsp webapp\WEB-INF\src\webwork\ LoginAction.java
webapp\webwork\ login.jsp ************************************************************************* <%@ taglib uri="webwork" prefix="ww" %> <%@ page language="java" pageEncoding="GB2312" %> <!DOCTYPE HTML PUBLIC "-//w3c//dtd html 4.0 transitional//en"> <html> <head> <title>Lomboz JSP</title> </head> <body bgcolor="#FFFFFF"> <form action="login.webwork" method="post"> <div> <span style="width:70;">用户名:</span> <span><input type="text" name="username"></span> </div> <div> <span style="width:70;">密 码:</span> <span><input type="password" name="password"></span> </div> <div> <span style="width:70;"></span> <span><input type="submit"></span> </div> <div style="color:red;"> <ww:property value="msg" /> </div> </form> </body> </html> *************************************************************************
webapp\webwork\ succeed.jsp ************************************************************************* <%@ page language="java" pageEncoding="GB2312" %> <%@ taglib uri="webwork" prefix="ww" %> <%@ page import="com.opensymphony.xwork.util.OgnlValueStack" %> <!DOCTYPE HTML PUBLIC "-//w3c//dtd html 4.0 transitional//en"> <html> <head> <title>Lomboz JSP</title> </head> <body bgcolor="#FFFFFF">
<ww:property value="#session['username']"/> <ww:property value="msg" /> <br> //////////////////////////////////////// <br> <% Object username=session.getAttribute("username"); if(username!=null) out.println(username); else response.sendRedirect("login.jsp");
OgnlValueStack stack = (OgnlValueStack)request.getAttribute("webwork.valueStack"); out.println(stack.findValue("msg")); %>
</body> </html> *************************************************************************
webapp\WEB-INF\src\webwork\ LoginAction.java ************************************************************************* package webwork; import com.opensymphony.xwork.Action; import com.opensymphony.xwork.ActionContext; import com.opensymphony.xwork.ActionSupport; public class LoginAction extends ActionSupport { private String username; private String password; public void setUsername(String username) { this.username = username; } public void setPassword(String password) { this.password = password; } private String msg;
public String getMsg() { return this.msg; } public String execute() throws Exception { boolean isSucceed = false; if (username != null) { System.out.println("登陆处理开始........."); username = username.trim(); password = password.trim(); if (username.equals("") && username.equals("")) { isSucceed = false; msg = "用户名或密码为空"; } else { isSucceed = true; } if (isSucceed) { if (username.equals("zkjbeyond") && password.equals("zkjbeyond")) { isSucceed = true; //放到session中 ActionContext.getContext().getSession().put("username", username); msg = "登陆成功"; } else { isSucceed = false; msg = "用户名密码不正确"; } } } else { isSucceed = false; msg = "请输入用户名密码"; } System.out.println(msg + isSucceed); System.out.println("登陆处理结束........."); if (isSucceed) return Action.SUCCESS; else return Action.ERROR; } } *************************************************************************
参考:http://www.opensymphony.com/webwork/wikidocs/Documentation.html 
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