学了一个星期的struts2收获还是不少啊,因为本人也是得到高手的指点才得意那么快完整一个简单的ARDU基本功能列表,这不刚弄完就迫不及待的发布出来跟大家分享。现在我发现写博客的好处了,就是一来可以给自己的学的东西作为一个笔记整体,二来还可以和大家讨论讨论。因为我本人在网上找struts2相关的学习资料实在是少,所以就想到如果我自己会的东西,而网上资料很少,就应该共享出来给大家,以免也有人跟我一样在黑暗中摸索着,如果没人指点,学东西遇到困难就很容易放弃,希望大家不要见笑。也许我这些东西在有些看来并不是什么可以炫耀的东西,但我的目的知识为了让那些跟我同样的学者有个方便之处。
好了,闲话就不多说,由于这里没法把东西上传上去,所以只能把代码一步一步的贴上来了。
从这个例子中,大家可以明显看到struts2的突出优点,实现零配置的愿望就为期不远了,所以那些跟我一样怕配置的学者,这真是个值得高兴的事。而且在整个程序中贯串了注解这样一个简便的方法,确实是非常方便,省了许多的后台配置。
首先从web.xml来看吧:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!-- 配置spring的监听器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:org/test/spring/applicationContext*.xml</param-value>
</context-param>
<!-- 开启监听 -->
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!-- 配置OpenSessionInViewFilter,必须在struts2监听之前 -->
<filter>
<filter-name>lazyLoadingFilter</filter-name>
<filter-class>
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
</filter-class>
</filter>
<!-- 设置监听加载上下文 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>
org.apache.struts2.dispatcher.FilterDispatcher
</filter-class>
<init-param>
<param-name>actionPackages</param-name>
<param-value>org.test.action</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>lazyLoadingFilter</filter-name>
<url-pattern>*.action</url-pattern>
</filter-mapping>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>
return list;
}
@Transactional(readOnly = true)
public Book getBookById(int id) {
System.out.println("book id:" + id);
return dao.get(id);
}
public void savebook(Book book) throws Exception {
dao.save(book);
}
public void delbook(Book book) throws Exception {
dao.delete(book);
}
}
package org.test.service;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.test.dao.ITestDAO;
import org.test.vo.User;
public class LoginService {
private ITestDAO itestdao;
public void setItestdao(ITestDAO itestdao) {
this.itestdao = itestdao;
}
public boolean userlogin(User user) throws Exception {
boolean flag = false;
String name = user.getUsername();
String pwd = user.getPassword();
String sql = "from User as t where t.username = '" + name
+ "' and t.password = '" + pwd + "'";
List<User> list = (List<User>) itestdao.query(sql);
if (list != null && list.size() > 0) {
return true;
} else {
return flag;
}
}
}
org.test.dao包下:
package org.test.dao;
import java.util.List;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
public class BookDAO extends HibernateDaoSupport implements ITestBook{
public boolean AddObject(Object obj) throws Exception {
this.getHibernateTemplate().save(obj);
return true;
}
public boolean DelObject(Object obj) throws Exception {
this.getHibernateTemplate().delete(obj);
return true;
}
public Object query(String HQL) throws Exception {
List list = this.getHibernateTemplate().find(HQL);
return list;
}
}
package org.test.dao;
public interface ITestBook {
public Object query(String HQL) throws Exception ;
public boolean AddObject(Object obj) throws Exception ;
public boolean DelObject(Object obj) throws Exception ;
}
package org.test.dao;
public interface ITestDAO {
public Object query(String HQL) throws Exception ;
}
package org.test.dao;
import java.util.List;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
public class TestDAO extends HibernateDaoSupport implements ITestDAO{
public Object query(String HQL) throws Exception {
List list = this.getHibernateTemplate().find(HQL);
return list;
}
}
其实这里的bookdao在程序中没有用到,因为在后面我发现了在一个包里提供了一个DAO,非常的实用,所以我全部继续这个了,具体的在BookService,java文件中能找到,具体包的请参看springside3-core-3.0.3.jar中的SimpleHIbernateTemplate.class(非常重要的一个类);
这是信息显示列表页面:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
<title>index</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
-->
</head>
<body>
<s:form action="list.action">
<table width="700" height="600" align="center">
<tr>
<td align="center" valign="middle">
<table width="700" height="200" >
<tr align="center" valign="middle">
<td width="100">
</td>
<td width="100">
</td>
<td colspan="3">
图书基本信息列表
</td>
<td width="100">
</td>
<td width="100">
</td>
</tr>
<tr align="center" valign="middle">
<td width="100">
</td>
<td colspan="2">
目前登陆在线的用户:
</td>
<td width="100">
${sessionScope.userbean.username}
</td>
<td width="100">
</td>
<td width="100">
<a href="book-input.jsp" target="_blank" rel="external nofollow" >新增数据</a>
</td>
<td width="100">
</td>
</tr>
<tr align="center" valign="middle">
<td width="100">
选择
</td>
<td width="100">
图书编号
</td>
<td width="100">
作者
</td>
<td width="100">
书名
</td>
<td width="100">
价格
</td>
<td width="100">
修改
</td>
<td width="100">
删除
</td>
</tr>
<s:iterator value="booklist" id="b">
<tr align="center" valign="middle">
<td width="100">
<input type="checkbox" name="id" value='<s:property value="#b.bookid" />' />
</td>
<td width="100">
<s:property value="#b.bookid"/>
</td>
<td width="100">
<s:property value="#b.author"/>
</td>
<td width="100">
<s:property value="#b.bookname"/>
</td>
<td width="100">
<s:property value="#b.price"/>
</td>
<td width="100">
<a href='book!input.action?id=${b.bookid}'>修改</a>
</td>
<td width="100">
<a href='book!delete.action?id=${b.bookid}'>删除</a>
</td>
</tr>
</s:iterator>
</table>
</td>
</tr>
</table>
</s:form>
</body>
</html>
修改和添加页面:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
<title>My JSP 'add.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
-->
</head>
<body>
<s:form action="book!save.action">
<s:if test="id != null"><input type="hidden" name="id" value="${param.id }"/></s:if>
<s:textfield name="book.author" label="作者"></s:textfield>
<s:textfield name="book.bookname" label="书名"></s:textfield>
<s:textfield name="book.price" label="价格"></s:textfield>
<s:submit name="提交"></s:submit>
</s:form>
</body>
</html>
登陆页面:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme() + "://"
+ request.getServerName() + ":" + request.getServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
<title>My JSP 'login.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
-->
</head>
<body>
<h1>
用户登陆
</h1>
<s:form action="login.action">
<s:textfield name="user.username" label="username"></s:textfield>
<s:password name="user.password" label="password"></s:password>
<s:submit name="submit"></s:submit>
</s:form>
</body>
</html>
这个例子我会上传到csdn里面去。具体的配置如上,不过看懂估计比较难,希望这是一个过度。