Struts 1.3.8 学习笔记（六）
第六个版本，我们将User的信息放到Session中，这里的关键是在Action中取得Session对象，然后将对象保存到Session中，最后在jsp页面中取得该对象。
更新后的代码
LoginAction.java
package com.coderdream.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.hp.gddc.ad.db.UserDao;
import com.hp.gddc.ad.form.LoginForm;
import com.hp.gddc.ad.vo.UserView;
public class LoginAction extends Action {
/**
* 处理客户端请求
*/
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
HttpServletResponse response) throws Exception {
// 得到客户的的提交数据
LoginForm lf = (LoginForm) form;
UserDao userDao = new UserDao();
String userName = lf.getUserName();
String password = lf.getPassword();
UserView userView = new UserView();
userView.setUserName(userName);
userView.setPassword(password);
int result = userDao.queryUser(userName, password);
// 业务调用
if (1 <= result) {
HttpSession session = request.getSession();
session.setAttribute("userView", userView);
// 用户名密码验证成功，跳转到成功页面
return mapping.findForward("success");
} else {
// 用户名密码错误，跳转到失败页面
return mapping.findForward("failing");
}
}
}success.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%> <%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%> <%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html:html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>登录成功</title> </head> <body> 用户登录成功！ <br> 对象保存在Session中： <logic:present name="userView" scope="session"> <bean:write name="userView" property="userName" /> </logic:present> </body> </html:html>
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