<ruby id="bdb3f"></ruby>

    <p id="bdb3f"><cite id="bdb3f"></cite></p>

      <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
        <p id="bdb3f"><cite id="bdb3f"></cite></p>

          <pre id="bdb3f"></pre>
          <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>

          <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
          <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>

          <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>

                <ruby id="bdb3f"></ruby>

                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                開發環境: System:Windows WebBrowser:IE6+、Firefox3+ JavaEE Server:tomcat5.0.2.8、tomcat6 IDE:eclipse、MyEclipse 8 Database:MySQL 開發依賴庫: JavaEE5、Spring 3.0.5、Mybatis 3.0.4、myBatis-spring-1.0、Struts2.2.3、junit4.8.2、ext2.2.2 Email:hoojo_@126.com Blog:[http://blog.csdn.net/IBM_hoojo](http://blog.csdn.net/IBM_hoojo) [http://hoojo.cnblogs.com/](http://hoojo.cnblogs.com/) 上次介紹過Spring3、SpringMVC、MyBatis3整合,在線博文:[http://www.cnblogs.com/hoojo/archive/2011/04/15/2016324.html](http://www.cnblogs.com/hoojo/archive/2011/04/15/2016324.html) ###一、準備工作 1、 下載jar包 Struts2 jar下載: [http://labs.renren.com/apache-mirror//struts/library/struts-2.2.3-lib.zip](http://labs.renren.com/apache-mirror/struts/library/struts-2.2.3-lib.zip) Spring3 jar下載: [http://ebr.springsource.com/repository/app/library/version/detail?name=org.springframework.spring&version=3.0.5.RELEASE](http://ebr.springsource.com/repository/app/library/version/detail?name=org.springframework.spring&version=3.0.5.RELEASE) MyBatis3 jar 下載:[http://www.mybatis.org/java.html](http://www.mybatis.org/java.html) 2、 添加的jar包如下: [![image](https://box.kancloud.cn/2016-04-01_56fe1228701fa.gif "image")](http://hi.csdn.net/attachment/201105/11/0_13051060949h9C.gif) #### 二、Spring、MyBatis整合 1、 需要的jar文件如下: [![clip_image002](https://box.kancloud.cn/2016-04-01_56fe12288ecc8.gif "clip_image002")](http://hi.csdn.net/attachment/201105/11/0_13051061019KQL.gif) 2、 在src目錄中加入mybatis.xml,內容如下: ~~~ <xml version="1.0" encoding="UTF-8" ?> DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <-- 別名 --> <typeAliases> <typeAlias type="com.hoo.entity.Account" alias="account"/> <typeAliases> <configuration> ~~~ 上面的配置文件中,可以加入一些公共、常用的MyBatis方面的全局配置。如handler、objectFactory、plugin、以及mappers的映射路徑(由于在applicationContext-common中的SqlSessionFactoryBean有配置mapper的location,這里就不需要配置)等。這個類的文件名稱和下面的applicationContext-common.xml中的configLocation中的值對應,不是隨便寫的。 3、 在src目錄中添加applicationContext-common.xml中加入內容如下: ~~~ <xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" 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 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd "> <-- 配置DataSource數據源 --> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql://10.0.0.131:3306/ash2"/> <property name="username" value="dev"/> <property name="password" value="dev"/> bean> <-- 配置SqlSessionFactoryBean --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="configLocation" value="classpath:mybatis.xml"/> <-- mapper和resultmap配置路徑 --> <property name="mapperLocations"> <list> <-- 表示在com.hoo.resultmap包或以下所有目錄中,以-resultmap.xml結尾所有文件 --> <value>classpath:com/hoo/resultmap/**/*-resultmap.xmlvalue> <value>classpath:com/hoo/entity/*-resultmap.xmlvalue> <value>classpath:com/hoo/mapper/**/*-mapper.xmlvalue> list> property> bean> <-- 配置事務管理器,注意這里的dataSource和SqlSessionFactoryBean的dataSource要一致,不然事務就沒有作用了 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> bean> <-- 配置事務的傳播特性 --> <bean id="baseTransactionProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" abstract="true"> <property name="transactionManager" ref="transactionManager" /> <property name="transactionAttributes"> <props> <prop key="add*">PROPAGATION_REQUIREDprop> <prop key="edit*">PROPAGATION_REQUIREDprop> <prop key="remove*">PROPAGATION_REQUIREDprop> <prop key="insert*">PROPAGATION_REQUIREDprop> <prop key="update*">PROPAGATION_REQUIREDprop> <prop key="del*">PROPAGATION_REQUIREDprop> <prop key="*">readOnlyprop> props> property> bean> <-- 通過掃描的模式,掃描目錄在com/hoo/mapper目錄下,所有的mapper都繼承SqlMapper接口的接口, 這樣一個bean就可以了 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.hoo.mapper"/> <property name="markerInterface" value="com.hoo.mapper.SqlMapper"/> <bean> <beans> ~~~ DataSource,這里的是采用jdbc的dataSource; SqlSessionFactory,是MyBatis團隊提供整合Spring的SqlSession工廠Bean用它可以完成Spring和MyBatis的整合。SqlSessionFactoryBean需要注入DataSource,配置myBatis配置文件的location,以及配置mapper.xml和resultMap.xml文件的路徑,可以用通配符模式配置。其實mapper里面是可以存放resultMap的內容的。由于resultMap文件的內容是和JavaBean及數據庫表對象進行映射的。一般一張表、一個JavaBean(Model)對應一個resultMap文件。將resultMap獨立出來提供可讀性、維護性。 TransactionManager,事務管理器是采用jdbc的管理器。需要注入DataSource數據源,這里注入的數據源和SqlSessionFactory是同一個數據源。如果不同的數據源,事務將無法起到作用。 baseTransactionProxy,事務的傳播特性才有spring提供的TransactionProxyFactoryBean這個事務代理工廠的攔截器類來完成。其他的暫時還沒有可以支持事務配置的傳播特性和隔離級別的方法,關于這里你可以參考:[http://www.cnblogs.com/hoojo/archive/2011/04/15/2017447.html](http://www.cnblogs.com/hoojo/archive/2011/04/15/2017447.html) MapperScannerConfigurer是MyBatis的mapper接口的掃描器,通過這個配置可以完成對指定basePackage報下的類進行掃描,如果這些類有繼承SqlMapper這個類的,將會是MyBatis的接口。不需要單獨配置mapper,而完成注入。 4、 在src目錄添加applicationContext-beans.xml這個文件,文件內容如下: ~~~ <xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" 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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <-- 注解探測器 --> <context:component-scan base-package="com.hoo"/> <beans> ~~~ 這里面可以完成一下Action、Bean的注入配置 5、 JavaBean(Model、Entity)相關類、及resultMap.xml文件內容 Bean ~~~ package com.hoo.entity; import java.io.Serializable; import java.util.Date; public class Account implements Serializable { private static final long serialVersionUID = -7970848646314840509L; private Integer accountId; private String username; private String password; private Date createTime; public Account() { super(); } //getter、setter @Override public String toString() { return this.accountId + "#" + this.username + "#" + this.password + "#" + this.createTime; } } account-resultMap.xml xml version="1.0" encoding="UTF-8"?> DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="accountMap"> <resultMap type="com.hoo.entity.Account" id="accountResultMap"> <id property="accountId" column="account_id"/> <result property="username" column="username"/> <result property="password" column="password"/> <result property="createTime" column="create_time"/> <resultMap> <mapper> ~~~ resultMap的type屬性和對應的classpath對應,id會在mapper.xml文件中用到。下面的屬性property是JavaBean的屬性,column和數據庫的字段對應。 6、 上面的applicationContext-common.xml中配置了SqlMapper,下面是SqlMapper代碼,就一個空接口 ~~~ package com.hoo.mapper; /** * function:所有的Mapper繼承這個接口 * @author hoojo * @createDate 2011-4-12 下午04:00:31 * @file SqlMapper.java * @package com.hoo.mapper * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ public interface SqlMapper { } ~~~ 7、 定制我們自己的增刪改查(CRUD)組件,接口如下 ~~~ package com.hoo.mapper; import java.util.List; import org.springframework.dao.DataAccessException; /** * function: BaseSqlMapper繼承SqlMapper,對Mapper進行接口封裝,提供常用的增刪改查組件; * 也可以對該接口進行擴展和封裝 * @author hoojo * @createDate 2011-4-14 上午11:36:41 * @file BaseSqlMapper.java * @package com.hoo.mapper * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ public interface BaseSqlMapper<T> extends SqlMapper { public void add(T entity) throws DataAccessException; public void edit(T entity) throws DataAccessException; public void remvoe(T entity) throws DataAccessException; public T get(T entity) throws DataAccessException; public List<T> getList(T entity) throws DataAccessException; } ~~~ 當然實際開發中,增刪改查組件一定不止這幾個方法。這里只是隨便挪列幾個方法做一個示例。實際中可以根據需求進行添加方法,這里添加的方法可以用一個mapper.xml進行實現,然后注入這個mapper即可完成操作。也可以定義其他的mapper,如AccountMapper繼承這個接口。然后為AccountMapper提供實現也是可以的。 8、 下面看看AccountMapper接口 ~~~ package com.hoo.mapper; import java.util.List; import com.hoo.entity.Account; /** * function:繼承SqlMapper,MyBatis數據操作接口;此接口無需實現類 * @author hoojo * @createDate 2010-12-21 下午05:21:20 * @file AccountMapper.java * @package com.hoo.mapper * @project MyBatis * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ public interface AccountMapper<T extends Account> extends BaseSqlMapper<T> { public List<T> getAllAccount(); } ~~~ 上面的AccountMapper繼承了BaseSqlMapper,并且提供了自己所需要的方法。下面實現這個Mapper中和父接口的方法。 account-mapper.xml ~~~ <xml version="1.0" encoding="UTF-8"?> <DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <-- namespace和定義的Mapper接口對應,并實現其中的方法 --> <mapper namespace="com.hoo.mapper.AccountMapper"> <select id="getList" parameterType="com.hoo.entity.Account" resultType="list" resultMap="accountResultMap"> select * from account where username like '%' #{username} '%' select> <select id="getAllAccount" resultType="list" resultMap="accountResultMap"> select * from account select> <-- accountResultMap是account-resultmap.xml中定義的resultmap --> <select id="get" parameterType="account" resultType="com.hoo.entity.Account" resultMap="accountResultMap"> [CDATA[ select * from account where account_id = #{accountId} ]]> select> <-- 自動生成id策略 --> <insert id="add" useGeneratedKeys="true" keyProperty="account_id" parameterType="account"> insert into account(account_id, username, password) values(#{accountId}, #{username}, #{password}) insert> <update id="edit" parameterType="account"> update account set username = #{username}, password = #{password} where account_id = #{accountId} update> <delete id="remove" parameterType="account"> delete from account where account_id = #{accountId} <delete> <mapper> ~~~ mapper的namespace和接口的classpath對應,里面的sql語句的id和方法名稱對應。這樣就完成了AccountMapper的實現。 9、 下面來測試下AccountMapper的功能,代碼如下: ~~~ package com.hoo.mapper; import java.util.List; import javax.inject.Inject; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit38.AbstractJUnit38SpringContextTests; import com.hoo.entity.Account; /** * function: AccountMapper JUnit測試類 * @author hoojo * @createDate 2011-4-12 下午04:21:50 * @file AccountMapperTest.java * @package com.hoo.mapper * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ @ContextConfiguration("classpath:applicationContext-*.xml") public class AccountMapperTest extends AbstractJUnit38SpringContextTests { @Inject private AccountMapper<Account> mapper; public void testGetAccount() { Account acc = new Account(); acc.setAccountId(28); System.out.println(mapper.get(acc)); } public void testAdd() { Account account = new Account(); account.setUsername("lisi@155.com"); account.setPassword("abc"); mapper.add(account); } public void testEditAccount() { Account acc = new Account(); acc.setAccountId(28); acc = mapper.get(acc); System.out.println(acc); acc.setUsername("Zhangsan22"); acc.setPassword("123123"); mapper.edit(acc); System.out.println(mapper.get(acc)); } public void testRemoveAccount() { Account acc = new Account(); acc.setAccountId(28); mapper.remvoe(acc); System.out.println(mapper.get(acc)); } public void testAccountList() { List<Account> acc = mapper.getAllAccount(); System.out.println(acc.size()); System.out.println(acc); } public void testList() { Account acc = new Account(); acc.setUsername("@qq.com"); List<Account> list = mapper.getList(acc); System.out.println(list.size()); System.out.println(list); } } ~~~ 運行上面的方法,沒有錯誤基本上就算完成了Mapper的功能了。 10、 下面來寫一個數據庫操作的基類Dao,代碼如下: ~~~ package com.hoo.dao; import java.util.List; import com.hoo.mapper.BaseSqlMapper; /** * function: * @author hoojo * @createDate 2011-4-14 上午11:30:09 * @file BaseMapperDao.java * @package com.hoo.dao * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ public interface BaseMapperDao<T> { @SuppressWarnings("unchecked") public void setMapperClass(Class<? extends BaseSqlMapper> mapperClass); public BaseSqlMapper<T> getMapper(); public boolean add(T entity) throws Exception; public boolean edit(T entity) throws Exception; public boolean remove(T entity) throws Exception; public T get(T entity) throws Exception; public List<T> getAll(T entity) throws Exception; } ~~~ 這個Dao定義了BaseSqlMapper中的方法,還提供了一個setMapperClass的方法。目的是在使用這個dao的時候,需要設置一個Mapper的class。且這個Mapper必須要是BaseSqlMapper或它的子類。所有的dao都可以用BaseMapperDao來完成CRUD操作即可,當BaseMapperDao的方法不夠用的情況下,可以在接口中提供SqlSession、SqlSessionTemplate方法,讓底層人員自己擴展所需要的方法。這里的dao和mapper好像有點冗余,因為dao和mapper完成的功能都是類似或是相同的。但是你可以在dao中,同時調用不同的mapper,來完成當前模塊的dao所需要的功能。 11、 看看BaseMapperDao的實現代碼 ~~~ package com.hoo.dao.impl; import java.util.List; import javax.inject.Inject; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionTemplate; import org.springframework.stereotype.Repository; import com.hoo.dao.BaseMapperDao; import com.hoo.mapper.BaseSqlMapper; /** * function:運用SqlSessionTemplate封裝Dao常用增刪改方法,可以進行擴展 * @author hoojo * @createDate 2011-4-14 下午12:22:07 * @file BaseMapperDaoImpl.java * @package com.hoo.dao.impl * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ @SuppressWarnings("unchecked") @Repository public class BaseMapperDaoImpl<T> extends SqlSessionTemplate implements BaseMapperDao<T> { @Inject public BaseMapperDaoImpl(SqlSessionFactory sqlSessionFactory) { super(sqlSessionFactory); } private Class<? extends BaseSqlMapper> mapperClass; public void setMapperClass(Class<? extends BaseSqlMapper> mapperClass) { this.mapperClass = mapperClass; } public BaseSqlMapper<T> getMapper() { return this.getMapper(mapperClass); } public boolean add(T entity) throws Exception { boolean flag = false; try { this.getMapper().add(entity); flag = true; } catch (Exception e) { flag = false; throw e; } return flag; } public boolean edit(T entity) throws Exception { boolean flag = false; try { this.getMapper().edit(entity); flag = true; } catch (Exception e) { flag = false; throw e; } return flag; } public T get(T entity) throws Exception { return this.getMapper().get(entity); } public List<T> getAll() throws Exception { return this.getMapper().getList(null); } public boolean remove(T entity) throws Exception { boolean flag = false; try { this.getMapper().remvoe(entity); flag = true; } catch (Exception e) { flag = false; throw e; } return flag; } } ~~~ 這個實現類繼承了SqlSessionTemplate,并且要注入SqlSessionFactory。提供的setMapperClass方法需要設置其BaseSqlMapper或它的子類。 好了,至此基本的CRUD的mapper和dao就算完成了。現在我們可以定義我們自己的業務模塊,調用公共組件來完成增刪改查操作。 12、 下面測試下這個BaseMapperDao功能 ~~~ package com.hoo.dao; import javax.inject.Inject; import org.junit.Before; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit38.AbstractJUnit38SpringContextTests; import com.hoo.entity.Account; import com.hoo.mapper.AccountMapper; /** * function: * @author hoojo * @createDate 2011-4-14 下午01:08:49 * @file BaseMapperDaoImplTest.java * @package com.hoo.dao * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ @ContextConfiguration("classpath:applicationContext-*.xml") public class BaseMapperDaoImplTest extends AbstractJUnit38SpringContextTests { @Inject private BaseMapperDao<Account> dao; @Before public void init() { System.out.println(dao); dao.setMapperClass(AccountMapper.class); } public void testGet() throws Exception { init(); Account acc = new Account(); acc.setAccountId(28); System.out.println(dao.get(acc)); } public void testAdd() throws Exception { init(); Account account = new Account(); account.setUsername("temp@156.com"); account.setPassword("abc"); System.out.println(dao.add(account)); } } ~~~ 13、 下面定義AccountDao接口 ~~~ package com.hoo.dao; import java.util.List; import org.springframework.dao.DataAccessException; /** * function: Account數據庫操作dao接口 * @author hoojo * @createDate 2011-4-13 上午10:21:38 * @file AccountDao.java * @package com.hoo.dao * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ public interface AccountDao<T> { /** * function: 添加Account對象信息 * @author hoojo * @createDate 2011-4-13 上午11:50:05 * @param entity Account * @return boolean 是否成功 * @throws DataAccessException */ public boolean addAccount(T entity) throws DataAccessException; /** * function: 根據id對到Account信息 * @author hoojo * @createDate 2011-4-13 上午11:50:45 * @param id 編號id * @return Account * @throws DataAccessException */ public T getAccount(Integer id) throws DataAccessException; /** * function: 查詢所有Account信息 * @author hoojo * @createDate 2011-4-13 上午11:51:45 * @param id 編號id * @return Account * @throws DataAccessException */ public List<T> getList() throws DataAccessException; } ~~~ 14、 AccountDao實現類 ~~~ package com.hoo.dao.impl; import java.util.List; import javax.inject.Inject; import org.springframework.dao.DataAccessException; import org.springframework.stereotype.Repository; import com.hoo.dao.AccountDao; import com.hoo.dao.BaseMapperDao; import com.hoo.entity.Account; import com.hoo.mapper.AccountMapper; /** * function: Account數據庫操作dao * @author hoojo * @createDate 2011-4-13 上午10:25:02 * @file AccountDaoImpl.java * @package com.hoo.dao.impl * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ @SuppressWarnings("unchecked") @Repository public class AccountDaoImpl<T extends Account> implements AccountDao<T> { @Inject private BaseMapperDao<Account> dao; public boolean addAccount(T entity) throws DataAccessException { dao.setMapperClass(AccountMapper.class); boolean flag = false; try { dao.add(entity); flag = true; } catch (DataAccessException e) { flag = false; throw e; } catch (Exception e) { throw new RuntimeException(e); } return flag; } public T getAccount(Integer id) throws DataAccessException { dao.setMapperClass(AccountMapper.class); Account acc = new Account(); T entity = null; try { acc.setAccountId(id); entity = (T) dao.get(acc); } catch (DataAccessException e) { throw e; } catch (Exception e) { throw new RuntimeException(e); } return entity; } public List<T> getList() throws DataAccessException { dao.setMapperClass(AccountMapper.class); List<T> list = null; try { list = (List<T>) ((AccountMapper)dao.getMapper()).getAllAcount(); } catch (DataAccessException e) { throw e; } catch (Exception e) { throw new RuntimeException(e); } return list; } } ~~~ 注意,上面的方法都設置了MapperClass,表示當前dao的Mapper是AccountMapper對象。所有的mapper方法都是調用AccountMapper這個對象中的方法。 15、 下面定義服務器層接口 ~~~ package com.hoo.biz; import java.util.List; import org.springframework.dao.DataAccessException; /** * function: biz層Account接口 * @author hoojo * @createDate 2011-4-13 上午11:33:04 * @file AccountBiz.java * @package com.hoo.biz * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ public interface AccountBiz<T> { /** * function: 添加Account對象信息 * @author hoojo * @createDate 2011-4-13 上午11:50:05 * @param entity Account * @return boolean 是否成功 * @throws DataAccessException */ public boolean addAccount(T entity) throws DataAccessException; public boolean execute(T entity) throws DataAccessException; /** * function: 根據id對到Account信息 * @author hoojo * @createDate 2011-4-13 上午11:50:45 * @param id 編號id * @return Account * @throws DataAccessException */ public T getAccount(Integer id) throws DataAccessException; /** * function: 查詢所有Account信息 * @author hoojo * @createDate 2011-4-13 上午11:51:45 * @param id 編號id * @return Account * @throws DataAccessException */ public List<T> getList() throws DataAccessException; } ~~~ 16、 AccountBiz的實現代碼 ~~~ package com.hoo.biz.impl; import java.util.List; import javax.inject.Inject; import org.springframework.dao.DataAccessException; import org.springframework.stereotype.Component; import com.hoo.biz.AccountBiz; import com.hoo.dao.AccountDao; import com.hoo.entity.Account; import com.hoo.exception.BizException; /** * function: Account Biz接口實現 * @author hoojo * @createDate 2011-4-13 上午11:34:39 * @file AccountBizImpl.java * @package com.hoo.biz.impl * @project MyBatisForSpring * @blog http://blog.csdn.net/IBM_hoojo * @email hoojo_@126.com * @version 1.0 */ //@Component @Service public class AccountBizImpl<T extends Account> implements AccountBiz<T> { @Inject private AccountDao<T> dao; public boolean addAccount(T entity) throws DataAccessException { if (entity == null) { throw new BizException(Account.class.getName() + "對象參數信息為Empty!"); } return dao.addAccount(entity); } public T getAccount(Integer id) throws DataAccessException { return dao.getAccount(id); } public List<T> getList() throws DataAccessException { return dao.getList(); } public boolean execute(T entity) throws DataAccessException { if (entity == null) { throw new BizException(Account.class.getName() + "對象參數信息為Empty!"); } return dao.addAccount(entity); } } ~~~ 直接注入AccountDao完成相關操作即可 17、 如果你需要在業務層設置事務傳播特性,需要在applicationContext-bean.xml中加入配置如下: ~~~ <-- 為AccountBiz接口配置事務攔截器,baseTransactionProxy是事務攔截器,在Action中獲取這個對象 --> <bean id="accountBiz" parent="baseTransactionProxy"> <-- 設置target,也就是AccountBiz的實現類 --> <property name="target" ref="accountBizImpl"/> <bean> ~~~ 這樣在Action中注入accountBiz這個對象后,那么當這個對象出現DataAccessException異常的時候,就會自動回滾事務。 至此,Spring和MyBatis的整合就完成了。
                  <ruby id="bdb3f"></ruby>

                  <p id="bdb3f"><cite id="bdb3f"></cite></p>

                    <p id="bdb3f"><cite id="bdb3f"><th id="bdb3f"></th></cite></p><p id="bdb3f"></p>
                      <p id="bdb3f"><cite id="bdb3f"></cite></p>

                        <pre id="bdb3f"></pre>
                        <pre id="bdb3f"><del id="bdb3f"><thead id="bdb3f"></thead></del></pre>

                        <ruby id="bdb3f"><mark id="bdb3f"></mark></ruby><ruby id="bdb3f"></ruby>
                        <pre id="bdb3f"><pre id="bdb3f"><mark id="bdb3f"></mark></pre></pre><output id="bdb3f"></output><p id="bdb3f"></p><p id="bdb3f"></p>

                        <pre id="bdb3f"><del id="bdb3f"><progress id="bdb3f"></progress></del></pre>

                              <ruby id="bdb3f"></ruby>

                              哎呀哎呀视频在线观看