學了一個星期的struts2收獲還是不少啊,因為本人也是得到高手的指點才得意那麼快完整一個簡單的ARDU基本功能清單,這不剛弄完就迫不及待的釋出出來跟大家分享。現在我發現寫部落格的好處了,就是一來可以給自己的學的東西作為一個筆記整體,二來還可以和大家讨論讨論。因為我本人在網上找struts2相關的學習資料實在是少,是以就想到如果我自己會的東西,而網上資料很少,就應該共享出來給大家,以免也有人跟我一樣在黑暗中摸索着,如果沒人指點,學東西遇到困難就很容易放棄,希望大家不要見笑。也許我這些東西在有些看來并不是什麼可以炫耀的東西,但我的目的知識為了讓那些跟我同樣的學者有個友善之處。
好了,閑話就不多說,由于這裡沒法把東西上傳上去,是以隻能把代碼一步一步的貼上來了。
從這個例子中,大家可以明顯看到struts2的突出優點,實作零配置的願望就為期不遠了,是以那些跟我一樣怕配置的學者,這真是個值得高興的事。而且在整個程式中貫串了注解這樣一個簡便的方法,确實是非常友善,省了許多的背景配置。
首先從web.xml來看吧:
<?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的監聽器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:org/test/spring/applicationContext*.xml</param-value>
</context-param>
<!-- 開啟監聽 -->
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!-- 配置OpenSessionInViewFilter,必須在struts2監聽之前 -->
<filter>
<filter-name>lazyLoadingFilter</filter-name>
<filter-class>
org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
</filter-class>
</filter>
<!-- 設定監聽加載上下文 -->
<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;
}
}
其實這裡的bookdao在程式中沒有用到,因為在後面我發現了在一個包裡提供了一個DAO,非常的實用,是以我全部繼續這個了,具體的在BookService,java檔案中能找到,具體包的請參看springside3-core-3.0.3.jar中的SimpleHIbernateTemplate.class(非常重要的一個類);
這是資訊顯示清單頁面:
<%@ 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">
圖書基本資訊清單
</td>
<td width="100">
</td>
<td width="100">
</td>
</tr>
<tr align="center" valign="middle">
<td width="100">
</td>
<td colspan="2">
目前登陸線上的使用者:
</td>
<td width="100">
${sessionScope.userbean.username}
</td>
<td width="100">
</td>
<td width="100">
<a href="book-input.jsp" target="_blank" rel="external nofollow" >新增資料</a>
</td>
<td width="100">
</td>
</tr>
<tr align="center" valign="middle">
<td width="100">
選擇
</td>
<td width="100">
圖書編号
</td>
<td width="100">
作者
</td>
<td width="100">
書名
</td>
<td width="100">
價格
</td>
<td width="100">
修改
</td>
<td width="100">
删除
</td>
</tr>
<s:iterator value="booklist" id="b">
<tr align="center" valign="middle">
<td width="100">
<input type="checkbox" name="id" value='<s:property value="#b.bookid" />' />
</td>
<td width="100">
<s:property value="#b.bookid"/>
</td>
<td width="100">
<s:property value="#b.author"/>
</td>
<td width="100">
<s:property value="#b.bookname"/>
</td>
<td width="100">
<s:property value="#b.price"/>
</td>
<td width="100">
<a href='book!input.action?id=${b.bookid}'>修改</a>
</td>
<td width="100">
<a href='book!delete.action?id=${b.bookid}'>删除</a>
</td>
</tr>
</s:iterator>
</table>
</td>
</tr>
</table>
</s:form>
</body>
</html>
修改和添加頁面:
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
<title>My JSP 'add.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" >
-->
</head>
<body>
<s:form action="book!save.action">
<s:if test="id != null"><input type="hidden" name="id" value="${param.id }"/></s:if>
<s:textfield name="book.author" label="作者"></s:textfield>
<s:textfield name="book.bookname" label="書名"></s:textfield>
<s:textfield name="book.price" label="價格"></s:textfield>
<s:submit name="送出"></s:submit>
</s:form>
</body>
</html>
登陸頁面:
<%@ 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>
使用者登陸
</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>
這個例子我會上傳到csdn裡面去。具體的配置如上,不過看懂估計比較難,希望這是一個過度。