Struts+Hibernate模板开发笔记---设计模式:MVC

最新推荐文章于 2018-11-14 16:02:09 发布

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#struts #hibernate #设计模式 #mvc #import #string

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博客介绍了基于Struts和设计模式的分层架构，包括表示层的多个JSP文件，如Basictemplate.jsp、addDemo.jsp等，控制层的struts - config.xml和DemoActionForm.java文件，以及应用逻辑层的AddDemoAction.java。

1.表示层(应用了template)

JSP文件(template/Basictemplate.jsp)

<%@ page contentType="text/html; charset=gb2312" %>
<%@ taglib uri='/WEB-INF/struts-template.tld' prefix='template' %> 
<html>
<head>
<title><template:get name='title'/></title>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html;CHARSET=gb2312">
<META HTTP-EQUIV="Content-Language" CONTENT="zh-CN">
<META name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<META name="keywords" content="extreme programming, 
extreme projects, design pattern, J2EE, forum, chinese">
<LINK href="default.css" type="text/css" rel="stylesheet">
</head>
<body topmargin='0'>
<table width="95%" border="0" align="center">
<tr>
<td width="17%" rowspan="3">
<!-- START OF NAVBAR -->
<template:get name='navbar'/>
<!-- END OF NAVBAR -->
</td>
<td width="83%" valign="top">
<!-- START OF HEADER -->
<template:get name='header'/>
<!-- END OF HEADER -->
</td>
</tr>
<tr>
<td valign="top">
<!-- START OF CONTENT -->
<template:get name='content'/>
<!--END OF CONTENT -->
</td>
</tr>
<tr>
<td valign="top">
<!-- START OF FOOTER -->
<template:get name='footer'/>
<!-- END OF FOOTER -->
</td>
</tr>
</table>
</body></html>

JSP文件(addDemo.jsp)

<%
/**
* <p>Title: Struts开发测试1.0</p>
* <p>Description:项目说明 </p>
* <p>Copyright: Copyright (c) 2003-2008 </p>
* <p>Company:优势科技 </p>
* @author 段洪杰
* @version 1.0
* @time [2003年10月22日 14时50分]
**/ 
%>
<%@page contentType="text/html; charset=gb2312" %>
<%@taglib uri='/WEB-INF/struts-template.tld' prefix='template' %>
<template:insert template='/template/basicTemplate.jsp'>
<template:put name='title' content='Struts开发测试1.0' direct='true'/>
<template:put name='navbar' content='/content/navbar.jsp' />
<template:put name='header' content='/content/header.jsp' />
<template:put name='content' content='/content/addDemo.jsp'/>
<template:put name='footer' content='/content/footer.jsp' />
</template:insert>

JSP文件(content/addDemo.jsp)

<%
/**
* <p>Title: Struts开发测试1.0</p>
* <p>Description:项目说明 </p>
* <p>Copyright: Copyright (c) 2003-2008 </p>
* <p>Company:优势科技 </p>
* @author 段洪杰
* @version 1.0
* @time [2003年10月22日 14时50分]
**/ 
%>
<%@page contentType = "text/html; charset=GB2312" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@taglib uri="/WEB-INF/ImageTag.tld" prefix="image" %>
<%@taglib uri="/WEB-INF/DateTag.tld" prefix="date" %>
<jsp:useBean id="sessionBean" scope="session" 
class="com.company.demo.web.SessionBean" />
<html:errors/>
<FORM METHOD="post" ACTION="addDemoAction.do" >
<p>名字(name) :
<input name="name" type="text">
</p>
<p>日期(date) :
<date:inputButton type="date" name="userDate"/>
</p>
<p>日期(date) :
<date:inputButton type="datetime" name="userDateTime"/>
</p>
<p>
<image:uploadButton savePath="saveimagepath"/>
</p>
<p>
<input type="submit" name="Submit" value="提交">
<input type="reset" name="Submit2" value="重置">
</p>
</FORM>

控制层(struts-config.xml)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//
DTD Struts Configuration 1.0//EN" "http://jakarta.apache.org/
struts/dtds/struts-config_1_0.dtd">
<struts-config>
<form-beans>
<form-bean name="demoActionForm" type="com.company.demo.web.DemoActionForm" />
<form-bean name="imageUploadActionForm" 
type="com.company.demo.web.ImageUploadActionForm" />
</form-beans>
<global-forwards>
<forward name="unknown-error" path="/error.jsp" />
<forward name="success" path="/success.jsp" />
</global-forwards>
<action-mappings>
<action name="demoActionForm" type="com.company.demo.web.AddDemoAction" 
input="/addDemo.jsp" scope="request" path="/addDemoAction" />
<action name="imageUploadActionForm" type="com.company.demo.web.ImageUploadAction" 
input="/content/imageUpload.jsp" scope="request" path="/imageUploadAction" />
</action-mappings>
</struts-config>

文件(DemoActionForm.java)

package com.company.demo.web; 
import org.apache.struts.action.*;
import javax.servlet.http.*;
public class DemoActionForm extends ActionForm {
private String name;
private String userDate;
private String userDateTime;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getUserDate() {
return userDate;
}
public void setUserDate(String userDate) {
this.userDate = userDate;
}
public String getUserDateTime() {
return userDateTime;
}
public void setUserDateTime(String userDateTime) {
this.userDateTime = userDateTime;
}
public ActionErrors validate(ActionMapping actionMapping, 
HttpServletRequest httpServletRequest) {
/**@todo: finish this method, this is just the skeleton.*/
return null;
}
public void reset(ActionMapping actionMapping, HttpServletRequest httpServletRequest)
 {
}
}

应用逻辑层(AddDemoAction.java)

package com.company.demo.web; 
import org.apache.struts.action.*;
import javax.servlet.http.*;
import java.util.Date;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import com.company.demo.jdo.Demo;
import com.company.demo.dao.DemoDAO;
import com.company.demo.dao.DemoDAOFactory;
import com.company.demo.dao.DemoDAOImpl;
public class AddDemoAction extends Action {
public ActionForward perform(ActionMapping actionMapping, ActionForm actionForm, 
HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) {
/**@todo: complete the business logic here, this is just a skeleton.*/
DemoActionForm demoActionForm = (DemoActionForm) actionForm;
SessionBean sessionBean = (SessionBean) httpServletRequest.getSession().getAttribute("
sessionBean");
if (sessionBean == null) {
httpServletRequest.setAttribute("message", "系统超时,请重新登录!!!");
return actionMapping.findForward("unknown-error");
}
else {
try {
Demo demo = new Demo();
demo.setName(demoActionForm.getName());
DateFormat dateTimeFormat = new SimpleDateFormat("yyyy-MM-dd hh:ss:mm");
Date userDateTime = dateTimeFormat.parse(demoActionForm.getUserDateTime());
demo.setSystemDate(userDateTime);
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
Date userDate = dateFormat.parse(demoActionForm.getUserDate());
demo.setUserDate(userDate);
DemoDAO demoDAO = DemoDAOFactory.getDemoDAO();
demoDAO.setDataModule(sessionBean.getDataModule());
demoDAO.createDemo(demo);
}
catch (Exception ex) {
httpServletRequest.setAttribute("message",ex.toString());
return (actionMapping.findForward("unknown-error"));
}
httpServletRequest.setAttribute("message", "成功!");
return (actionMapping.findForward("success"));
}
}
}