struts2释出已经很久了,虽然自己现在作GUI开发,不过有时间还是学习下web开发,现在就将我使用myeclipse工具应用struts2 + spring + hibernate 实现CRUD操作的步骤一一纪录下来,为初学者少走弯路略尽绵薄之力!
首先,myeclipse中web工程目录结构如下图:
使用myeclipse开发hibernate和spring的操作我就不详细说了,网上的教程很多,如果有不明白的可以咨询我,呵呵.
其中持久类AbstractTest,Test,TestDAO,Test.hbm.xml都是myeclipse的hibernate工具生成的.TestAction类是struts2的核心处理类,代码如下:
package
com.yangqiang.strutsdemo.web;
import
java.util.Collection;
import
java.util.List;
import
org.apache.log4j.Logger;
import
com.opensymphony.xwork2.ActionSupport;
import
com.yangqiang.strutsdemo.domain.Test;
import
com.yangqiang.strutsdemo.domain.TestDAO;
/** */
/**
* 描述:
* @author Stone yang 创建日期:2007-4-24
* @version pattern Study
* 技术支持: <a href=""></a>
*/
public
class
TestAction
extends
ActionSupport
...
{
private static final Logger log = Logger.getLogger(TestAction.class);
private Integer id;
private Integer[] ids;
protected TestDAO testDao;
private Test test;
private Collection<Test> testColl;
/** *//**
* 描述 return 返回 ids。
* @author Stone yang
* @date 2007-4-24
*/
public Integer[] getIds() ...{
return ids;
}
/** *//**
* 描述:设置ids的值。
* @param ids
* @author Stone yang
* @date 2007-4-24
*/
public void setIds(Integer[] ids) ...{
this.ids = ids;
}
/** *//**
* 描述 return 返回 testColl。
* @author Stone yang
* @date 2007-4-24
*/
public Collection<Test> getTestColl() ...{
return testColl;
}
/** *//**
* 描述:设置testColl的值。
* @param testColl
* @author Stone yang
* @date 2007-4-24
*/
public void setTestColl(Collection<Test> testColl) ...{
this.testColl = testColl;
}
/** *//**
* 描述 return 返回 id。
* @author Stone yang
* @date 2007-4-24
*/
public Integer getId() ...{
return id;
}
/** *//**
* 描述:设置id的值。
* @param id
* @author Stone yang
* @date 2007-4-24
*/
public void setId(Integer id) ...{
this.id = id;
}
/** *//**
* 描述 return 返回 testDao。
* @author Stone yang
* @date 2007-4-24
*/
public TestDAO getTestDao() ...{
return testDao;
}
/** *//**
* 描述:设置testDao的值。
* @param testDao
* @author Stone yang
* @date 2007-4-24
*/
public void setTestDao(TestDAO testDao) ...{
this.testDao = testDao;
}
/** *//**
* 描述 return 返回 test。
* @author Stone yang
* @date 2007-4-24
*/
public Test getTest() ...{
return test;
}
/** *//**
* 描述:设置test的值。
* @param test
* @author Stone yang
* @date 2007-4-24
*/
public void setTest(Test test) ...{
this.test = test;
}
public String load() ...{
test = getTestDao().findById(id);
return SUCCESS;
}
@SuppressWarnings("unchecked")
public String list() ...{
testColl = getTestDao().findByExample(new Test());
return SUCCESS;
}
public String store() ...{
getTestDao().merge(test);
return SUCCESS;
}
public String remove() ...{
for (int i = 0, size = ids.length; i < size; i++) ...{
getTestDao().delete(getTestDao().findById(ids[i]));
}
return SUCCESS;
}
}
applicationContext.xml 主要是工具生成 的,只是将配置文件路径改下,代码如下:
<? xml version="1.0" encoding="UTF-8"
?>
<!
DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"
>
<
beans
>
<
bean
id
="struts"
class ="org.springframework.orm.hibernate3.LocalSessionFactoryBean"
>
<
property
name
="configLocation"
>
<!--
改变了一下
-->
<
value
>
/WEB-INF/classes/hibernate.cfg.xml
</
value
>
</
property
>
</
bean
>
<
bean
id
="testDao"
class ="com.yangqiang.strutsdemo.domain.TestDAO"
>
<
property
name
="sessionFactory"
>
<
ref
bean
="struts"
/>
</
property
>
</
bean
></
beans
>
struts.xml (变化不大,写过以前struts配置文件的不难理解)
<? xml versinotallow="1.0" encoding="UTF-8" ?>
<! DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd" >
< struts
>
< package
name
="struts_crud"
extends
="struts-default"
namespace
="/test"
>
< action
name
="List"
class
="com.yangqiang.strutsdemo.web.TestAction"
method
="list"
>
< result
>
list.jsp
</
result
>
</ action
>
< action
name
="Edit"
class
="com.yangqiang.strutsdemo.web.TestAction"
method
="load"
>
< result
>
edit.jsp
</
result
>
</ action
>
< action
name
="Store"
class
="com.yangqiang.strutsdemo.web.TestAction"
method
="store"
>
< result
type
="redirect"
>
List.action
</
result
>
</ action
>
< action
name
="Remove"
class
="com.yangqiang.strutsdemo.web.TestAction"
method
="remove"
>
< result
type
="redirect"
>
List.action
</
result
>
</ action
>
</ package
>
</ struts
>
struts.properties
struts.objectFactory = spring
web.xml
<? xml versinotallow="1.0" encoding="UTF-8" ?>
< web-app version ="2.4"
xmlns ="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation ="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
>
< display-name > Struts2 crud 例程
</
display-name
>
< context-param >
< param-name > contextConfigLocation
</
param-name
>
< param-value > classpath*:*.xml
</
param-value
>
</ context-param >
< listener >
< listener-class > org.springframework.web.context.ContextLoaderListener
</
listener-class
>
</ listener >
< filter >
< filter-name > struts2
</
filter-name
>
< filter-class >
org.apache.struts2.dispatcher.FilterDispatcher
</ filter-class >
</ filter >
< filter-mapping >
< filter-name > struts2
</
filter-name
>
< url-pattern > /*
</
url-pattern
>
</ filter-mapping >
< welcome-file-list >
< welcome-file > list.jsp
</
welcome-file
>
</ welcome-file-list >
</ web-app >
list.jsp
<% ... @ page language="java" cnotallow="text/html; charset=utf-8" pageEncoding="utf-8" %>
<% ... @ taglib prefix="s" uri="/struts-tags" %>
<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html xmlns ="http://www.w3.org/1999/xhtml" >
< head >
< title > Book List </
title
>
< style type ="text/css" >
...
table {...}{
border: 1px solid black;
border-collapse: collapse;
}
table thead tr th {...}{
border: 1px solid black;
padding: 3px;
background-color: #cccccc;
}
table tbody tr td {...}{
border: 1px solid black;
padding: 3px;
}
</ style >
</ head >
< body >
< h2 > Book List </
h2
>
< s:form action ="Remove" theme
="simple"
>
< table cellspacing ="0" >
< thead >
< tr >
< th > 勾选 </
th
>
< th > ID </
th
>
< th > 名称 </
th
>
< th > 作者 </
th
>
</ tr >
</ thead >
< tbody >
< s:iterator value ="testColl" >
< tr >
< td >< input type
="checkbox"
name
="ids"
value
='<s:property
value
="id"
/>
' />
</
td
>
< td >< s:property value
="id"
/></
td
>
< td >< s:property value
="name"
/></
td
>
< td >< s:property value
="author"
/></
td
>
< td >
< a href ='<s:url action
="Edit"
><
s:param
name
="id"
value
="id"
/></
s:url
>
'>
Edit
</ a >
< a href ='<s:url action
="Remove"
><
s:param
name
="ids"
value
="id"
/></
s:url
>
'>
Delete
</ a >
</ td >
</ tr >
</ s:iterator >
</ tbody >
</ table >
< s:submit value ="Remove"
/><
a
href
="edit.jsp"
>
Add Test
</
a
>
</ s:form >
</ body >
</ html >
edit.jsp
<% ... @ page language="java" cnotallow="text/html; charset=utf-8" pageEncoding="utf-8" %>
<% ... @ taglib prefix="s" uri="/struts-tags" %>
<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >
< html xmlns ="http://www.w3.org/1999/xhtml" >
< head >
< title > Book </ title
>
</ head >
< body >
< h2 >
< s:if test ="null == test" >
Add Book
</ s:if >
< s:else >
Edit Book
</ s:else >
</ h2 >
< s:form action ="Store" >
< s:hidden name ="test.id" label ="ID"
/>
< s:textfield name ="test.name" label ="书名"
/>
< s:textfield name ="test.author" label ="作者"
/>
< s:submit />
</ s:form >
</ body >
</ html >
