1.創建項目,項目名稱(springdemo11),如圖所示
2.在項目中創建目錄(src->源碼目錄,test->測試目錄,source->配置文件目錄,lib->jar包目錄),如圖所示
3.在lib中創建相應的jar包目錄,主要用於區分jar包.如圖所示
4.在lib的相應的jar包目錄中添加jar包.如圖所示
5.在src目錄創建實體Bean Forum,包名(com.mycompany.shequ.bean),如圖所示
6.實體Bean Forum的內容如下
package com.mycompany.shequ.bean; public class Forum { private int fid; private String name; public int getFid() { return fid; } public void setFid(int fid) { this.fid = fid; } public String getName() { return name; } public void setName(String name) { this.name = name; } }
7.在src目錄創建接口ForumDao,包名(com.mycompany.shequ.dao)如圖所示
8.接口ForumDao的內容如下
package com.mycompany.shequ.dao; public interface ForumDao { public int findTotalCount(); }
9.在src目錄中創建ForumDao的實現類ForumDaoImpl,包名(com.mycompany.shequ.dao.impl),如圖所示
10.ForumDao的實現類ForumDaoImpl的內容如下
package com.mycompany.shequ.dao.impl; import org.springframework.jdbc.core.support.JdbcDaoSupport; import com.mycompany.shequ.dao.ForumDao; public class ForumDaoImpl extends JdbcDaoSupport implements ForumDao { @Override public int findTotalCount() { String sql = "select count(fid) from hnsq_forum"; int totalCount = getJdbcTemplate().queryForObject(sql,new Object[]{},Integer.class); return totalCount; } }
11.在source目錄中創建配置文件spring-datasource.xml,如圖所示
12.配置文件spring-datasource.xml的內容如下
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/b_shequ_two" /> <property name="username" value="root" /> <property name="password" value="" /> </bean> </beans>
13.在source目錄中創建配置文件applicationContext.xml,如圖所示
14.配置文件applicationContext.xml的內容如下
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> <import resource="spring-datasource.xml" /> <bean id="forumDao" class="com.mycompany.shequ.dao.impl.ForumDaoImpl"> <property name="dataSource" ref="dataSource" /> </bean> </beans>
15.在test目錄中創建ForumDaoImplTest測試類,包名(com.mycompany.shequ.dao.impl),如圖所示
16.ForumDaoImplTest測試類的內容如下
package com.mycompany.shequ.dao.impl; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; import com.mycompany.shequ.dao.ForumDao; public class ForumDaoImplTest { @Test public void testFindTotalCount(){ ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); ForumDao forumDao = (ForumDao) context.getBean("forumDao"); int totalCount = forumDao.findTotalCount(); System.out.println(totalCount); } }
17.運行測試類中的testFindTotalCount方法,運行結果如圖所示