1、準備jar包
A、第一種方式：配置SqlSessionFactoryBean+配置SqlSessionTemplate
a、項目結構
b、applicationContext.xml 帶詳細註釋
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:p="http://www.springframework.org/schema/p" 5 xmlns:aop="http://www.springframework.org/schema/aop" 6 xmlns:tx="http://www.springframework.org/schema/tx" 7 xsi:schemaLocation="http://www.springframework.org/schema/beans 8 http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 9 http://www.springframework.org/schema/aop 10 http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 11 http://www.springframework.org/schema/tx 12 http://www.springframework.org/schema/tx/spring-tx-3.2.xsd "> 13 14 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 15 destroy-method="close"> 16 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 17 <!-- <property name="url"> 18 <value><![CDATA[jdbc:mysql://127.0.0.1:3306/smbms? 19 useUnicode=true&characterEncoding=utf-8]]></value> 20 </property> --> 21 <property name="url" value="jdbc:mysql://127.0.0.1:3306/smbms? 22 useUnicode=true&characterEncoding=utf-8" /> 23 <property name="username" value="root" /> 24 <property name="password" value="root" /> 25 </bean> 26 27 <!-- 配置SqlSessionFactoryBean --><!-- 爲整合應用提供SqlSession對象資源 --> 28 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 29 <!-- 引用數據源組件 --> 30 <property name="dataSource" ref="dataSource" /> 31 <!-- 引用MyBatis配置文件中的配置 --> 32 <property name="configLocation" value="classpath:mybatis-config.xml" /> 33 <!-- 配置SQL映射文件信息 --> 34 <property name="mapperLocations"> 35 <list> 36 <value>classpath:cn/smbms/dao/*/*.xml</value><!-- 映射文件 之前在mybatis配置文件中--> 37 </list> 38 </property> 39 </bean> 40 41 <!-- 配置SqlSessionTemplate --><!-- 負責管理MyBatis的SqlSession，調用SQL映射語句，實現對數據庫的訪問--> 42 <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"> 43 <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory" /><!-- 整合好的對象資源賦值給SqlSessionTemplate --> 44 </bean> 45 <!-- 配置DAO --> 46 <bean id="userMapper" class="cn.smbms.dao.user.UserMapperImpl"><!-- Dao層聲明的對象是SqlSessionTemplate來獲得SqlSession --> 47 <property name="sqlSession" ref="sqlSessionTemplate" /><!-- 把管理的SqlSession賦值給Dao層set方法 --> 48 </bean> 49 <!-- 配置業務Bean --> 50 <bean id="userService" class="cn.smbms.service.user.UserServiceImpl"> 51 <property name="userMapper" ref="userMapper" /><!-- 把Dao層對象賦值給Server層set方法 --> 52 </bean> 53 </beans>
c、mybatis-config.xml
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" 3 "http://mybatis.org/dtd/mybatis-3-config.dtd"> 4 <configuration> 5 <!--類型別名 --> 6 <typeAliases> 7 <package name="cn.smbms.pojo" /> 8 </typeAliases> 9 </configuration>
d、log4j
1 log4j.rootLogger=DEBUG,CONSOLE,file 2 #log4j.rootLogger=ERROR,ROLLING_FILE 3 log4j.logger.cn.smbms.dao=debug 4 log4j.logger.com.ibatis=debug 5 log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=debug 6 log4j.logger.com.ibatis.common.jdbc.ScriptRunner=debug 7 log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=debug 8 log4j.logger.java.sql.Connection=debug 9 log4j.logger.java.sql.Statement=debug 10 log4j.logger.java.sql.PreparedStatement=debug 11 log4j.logger.java.sql.ResultSet=debug 12 log4j.logger.org.tuckey.web.filters.urlrewrite.UrlRewriteFilter=debug 13 14 ###################################################################################### 15 # Console Appender \u65e5\u5fd7\u5728\u63a7\u5236\u8f93\u51fa\u914d\u7f6e 16 ###################################################################################### 17 log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender 18 log4j.appender.Threshold=error 19 log4j.appender.CONSOLE.Target=System.out 20 log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout 21 log4j.appender.CONSOLE.layout.ConversionPattern= [%p] %d %c - %m%n 22 23 24 ###################################################################################### 25 # DailyRolling File \u6bcf\u5929\u4ea7\u751f\u4e00\u4e2a\u65e5\u5fd7\u6587\u4ef6\uff0c\u6587\u4ef6\u540d\u683c\u5f0f:log2009-09-11 26 ###################################################################################### 27 log4j.appender.file=org.apache.log4j.DailyRollingFileAppender 28 log4j.appender.file.DatePattern=yyyy-MM-dd 29 log4j.appender.file.File=log.log 30 log4j.appender.file.Append=true 31 log4j.appender.file.Threshold=error 32 log4j.appender.file.layout=org.apache.log4j.PatternLayout 33 log4j.appender.file.layout.ConversionPattern=%d{yyyy-M-d HH:mm:ss}%x[%5p](%F:%L) %m%n 34 35 36 log4j.logger.com.opensymphony.xwork2=error
e、UserMapper.java
1 package cn.smbms.dao.user; 2 3 import java.util.List; 4 import cn.smbms.pojo.User; 5 6 public interface UserMapper { 7 /** 8 * 查詢用戶列表(參數：對象入參) 9 * @return 10 */ 11 public List<User> getUserList(User user); 12 }
f、UserMapperImpl.java
1 package cn.smbms.dao.user; 2 3 import java.util.List; 4 import org.apache.ibatis.session.SqlSession; 5 import org.mybatis.spring.SqlSessionTemplate; 6 7 import cn.smbms.pojo.User; 8 9 public class UserMapperImpl implements UserMapper { 10 private SqlSessionTemplate sqlSession; 11 12 @Override 13 public List<User> getUserList(User user) { 14 return sqlSession.selectList( 15 "cn.smbms.dao.user.UserMapper.getUserList", user); 16 } 17 18 public SqlSessionTemplate getSqlSession() { 19 return sqlSession; 20 } 21 22 public void setSqlSession(SqlSessionTemplate sqlSession) { 23 this.sqlSession = sqlSession; 24 } 25 26 }
g、UserMapper.xml
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 3 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 4 <mapper namespace="cn.smbms.dao.user.UserMapper"> 5 <!-- 當數據庫中的字段信息與對象的屬性不一致時需要通過resultMap來映射 --> 6 <resultMap type="User" id="userList"> 7 <!-- <result property="id" column="id" /> 8 <result property="userCode" column="userCode" /> 9 <result property="userName" column="userName" /> 10 <result property="phone" column="phone" /> 11 <result property="birthday" column="birthday" /> 12 <result property="gender" column="gender" /> 13 <result property="userRole" column="userRole" /> --> 14 <result property="userRoleName" column="roleName" /> 15 </resultMap> 16 <!-- 查詢用戶列表(參數：對象入參) --> 17 <select id="getUserList" resultMap="userList" parameterType="User"> 18 select u.*,r.roleName from smbms_user u,smbms_role r 19 where u.userName like CONCAT ('%',#{userName},'%') 20 and u.userRole = #{userRole} and u.userRole = r.id 21 </select> 22 </mapper>
h、User.java
1 package cn.smbms.pojo; 2 3 import java.util.Date; 4 5 public class User { 6 private Integer id; // id 7 private String userCode; // 用戶編碼 8 private String userName; // 用戶名稱 9 private String userPassword; // 用戶密碼 10 private Integer gender; // 性別 11 private Date birthday; // 出生日期 12 private String phone; // 電話 13 private String address; // 地址 14 private Integer userRole; // 用戶角色ID 15 private Integer createdBy; // 創建者 16 private Date creationDate; // 創建時間 17 private Integer modifyBy; // 更新者 18 private Date modifyDate; // 更新時間 19 private String userRoleName; // 用戶角色名稱 20 21 public Integer getId() { 22 return id; 23 } 24 25 public void setId(Integer id) { 26 this.id = id; 27 } 28 29 public String getUserCode() { 30 return userCode; 31 } 32 33 public void setUserCode(String userCode) { 34 this.userCode = userCode; 35 } 36 37 public String getUserName() { 38 return userName; 39 } 40 41 public void setUserName(String userName) { 42 this.userName = userName; 43 } 44 45 public String getUserPassword() { 46 return userPassword; 47 } 48 49 public void setUserPassword(String userPassword) { 50 this.userPassword = userPassword; 51 } 52 53 public Integer getGender() { 54 return gender; 55 } 56 57 public void setGender(Integer gender) { 58 this.gender = gender; 59 } 60 61 public Date getBirthday() { 62 return birthday; 63 } 64 65 public void setBirthday(Date birthday) { 66 this.birthday = birthday; 67 } 68 69 public String getPhone() { 70 return phone; 71 } 72 73 public void setPhone(String phone) { 74 this.phone = phone; 75 } 76 77 public String getAddress() { 78 return address; 79 } 80 81 public void setAddress(String address) { 82 this.address = address; 83 } 84 85 public Integer getUserRole() { 86 return userRole; 87 } 88 89 public void setUserRole(Integer userRole) { 90 this.userRole = userRole; 91 } 92 93 public Integer getCreatedBy() { 94 return createdBy; 95 } 96 97 public void setCreatedBy(Integer createdBy) { 98 this.createdBy = createdBy; 99 } 100 101 public Date getCreationDate() { 102 return creationDate; 103 } 104 105 public void setCreationDate(Date creationDate) { 106 this.creationDate = creationDate; 107 } 108 109 public Integer getModifyBy() { 110 return modifyBy; 111 } 112 113 public void setModifyBy(Integer modifyBy) { 114 this.modifyBy = modifyBy; 115 } 116 117 public Date getModifyDate() { 118 return modifyDate; 119 } 120 121 public void setModifyDate(Date modifyDate) { 122 this.modifyDate = modifyDate; 123 } 124 125 public String getUserRoleName() { 126 return userRoleName; 127 } 128 129 public void setUserRoleName(String userRoleName) { 130 this.userRoleName = userRoleName; 131 } 132 }
i、UserService.java
Java初高級一起學習分享，我的學習羣64弍46衣3凌9，或加資料羣69似64陸0吧3
1 package cn.smbms.service.user; 2 3 import java.util.List; 4 import cn.smbms.pojo.User; 5 6 public interface UserService { 7 public List<User> findUsersWithConditions(User user); 8 }
J、UserServiceImpl.java
1 package cn.smbms.service.user; 2 3 import java.util.List; 4 5 import cn.smbms.dao.user.UserMapper; 6 import cn.smbms.pojo.User; 7 8 public class UserServiceImpl implements UserService { 9 private UserMapper userMapper; 10 11 @Override 12 public List<User> findUsersWithConditions(User user) { 13 try { 14 return userMapper.getUserList(user); 15 } catch (RuntimeException e) { 16 e.printStackTrace(); 17 throw e; 18 } 19 } 20 21 public UserMapper getUserMapper() { 22 return userMapper; 23 } 24 25 public void setUserMapper(UserMapper userMapper) { 26 this.userMapper = userMapper; 27 } 28 29 }
k、test
Java初高級一起學習分享，我的學習羣64弍46衣3凌9，或加資料羣69似64陸0吧31 package cn.smbms.test.user; 2 3 import java.util.ArrayList; 4 import java.util.List; 5 6 import org.apache.log4j.Logger; 7 import org.junit.Before; 8 import org.junit.Test; 9 import org.springframework.context.ApplicationContext; 10 import org.springframework.context.support.ClassPathXmlApplicationContext; 11 12 import cn.smbms.pojo.User; 13 import cn.smbms.service.user.UserService; 14 15 public class UserTest { 16 17 private Logger logger = Logger.getLogger(UserTest.class); 18 19 @Before 20 public void setUp() throws Exception { 21 } 22 23 @Test 24 public void testGetUserList() { 25 ApplicationContext ctx = new ClassPathXmlApplicationContext( 26 "applicationContext.xml"); 27 UserService userService = (UserService) ctx.getBean("userService"); 28 List<User> userList = new ArrayList<User>(); 29 User userCondition = new User(); 30 userCondition.setUserName("趙"); 31 userCondition.setUserRole(3); 32 userList = userService.findUsersWithConditions(userCondition); 33 34 for (User userResult : userList) { 35 // logger.debug("testGetUserList userCode: " 36 // + userResult.getUserCode() + " and userName: " 37 // + userResult.getUserName() + " and userRole: " 38 // + userResult.getUserRole() + " and userRoleName: " 39 // + userResult.getUserRoleName() + " and address: " 40 // + userResult.getAddress()); 41 System.out.println(userResult.getUserName()); 42 } 43 } 44 45 }
B、第一種方式：配置SqlSessionFactoryBean+採用數據映射器（MapperFactoryBean）
a、項目結構（dao層少了impl）
b、applicationContext.xml（主要變化在xml文件裏）
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" 4 xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" 5 xsi:schemaLocation="http://www.springframework.org/schema/beans 6 http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 7 http://www.springframework.org/schema/aop 8 http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 9 http://www.springframework.org/schema/tx 10 http://www.springframework.org/schema/tx/spring-tx-3.2.xsd "> 11 12 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 13 destroy-method="close"> 14 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 15 16 <property name="url" value="jdbc:mysql://127.0.0.1:3306/smbms? 17 useUnicode=true&characterEncoding=utf-8" /> 18 <property name="username" value="root" /> 19 <property name="password" value="root" /> 20 </bean> 21 22 <!-- 配置SqlSessionFactoryBean --> 23 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 24 <!-- 引用數據源組件 --> 25 <property name="dataSource" ref="dataSource" /> 26 <!-- 引用MyBatis配置文件中的配置 --> 27 <property name="configLocation" value="classpath:mybatis-config.xml" /> 28 <!-- 配置SQL映射文件信息 --> 29 <!-- <property name="mapperLocations"> 30 <list> 31 <value>classpath:cn/smbms/dao/**/*.xml</value> 32 </list> 33 </property> --> 34 </bean> 35 <!-- 配置DAO --><!-- 採用數據映射器（MapperFactoryBean）的方式完成對數據庫操作--> 36 <bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean"> 37 <!-- 根據Mapper接口獲取Mapper對象，它封裝了原有的SqlSession.getMapper()功能的實現--> 38 <property name="mapperInterface" value="cn.smbms.dao.user.UserMapper" /><!-- 指定映射器，只能是接口類型 --> 39 <property name="sqlSessionFactory" ref="sqlSessionFactory" /> 40 </bean> <!-- 注入SqlSessionFactory以提供SqlSessionTemplate實例 --> 41 42 <!-- 配置業務Bean --> 43 <bean id="userService" class="cn.smbms.service.user.UserServiceImpl"> 44 <property name="userMapper" ref="userMapper" /> 45 </bean> 46 </beans>
c、UserServiceImpl.java（發生變化）
1 package cn.smbms.service.user; 2 3 import java.util.List; 4 import cn.smbms.dao.user.UserMapper; 5 import cn.smbms.pojo.User; 6 7 public class UserServiceImpl implements UserService { 8 private UserMapper userMapper; 9 10 @Override 11 public List<User> findUsersWithConditions(User user) { 12 try { 13 return userMapper.getUserList(user); 14 } catch (RuntimeException e) { 15 e.printStackTrace(); 16 throw e; 17 } 18 } 19 20 public UserMapper getUserMapper() { 21 return userMapper; 22 } 23 24 public void setUserMapper(UserMapper userMapper) { 25 this.userMapper = userMapper; 26 } 27 28 }
C、第三種方式：配置SqlSessionFactoryBean+MapperScannerConfigurer(遞歸掃描基準包下所有接口，若它們在SQL映射文件中 定義過，則動態註冊爲MapperFactoryBean，如此即可批量產生映射器實現類)+註解
a、applicationContext.xml（主要變化在xml文件裏）
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:p="http://www.springframework.org/schema/p" 5 xmlns:aop="http://www.springframework.org/schema/aop" 6 xmlns:tx="http://www.springframework.org/schema/tx" 7 xmlns:context="http://www.springframework.org/schema/context" 8 xsi:schemaLocation="http://www.springframework.org/schema/beans 9 http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 10 http://www.springframework.org/schema/aop 11 http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 12 http://www.springframework.org/schema/tx 13 http://www.springframework.org/schema/tx/spring-tx-3.2.xsd 14 http://www.springframework.org/schema/context 15 http://www.springframework.org/schema/context/spring-context-3.2.xsd"> 16 17 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 18 destroy-method="close"> 19 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 20 <!-- <property name="url"> 21 <value><![CDATA[jdbc:mysql://127.0.0.1:3306/smbms? 22 useUnicode=true&characterEncoding=utf-8]]></value> 23 </property> --> 24 <property name="url" value="jdbc:mysql://127.0.0.1:3306/smbms? 25 useUnicode=true&characterEncoding=utf-8" /> 26 <property name="username" value="root" /> 27 <property name="password" value="root" /> 28 </bean> 29 30 <!-- 配置SqlSessionFactoryBean --> 31 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 32 <!-- 引用數據源組件 --> 33 <property name="dataSource" ref="dataSource" /> 34 <!-- 引用MyBatis配置文件中的配置 --> 35 <property name="configLocation" value="classpath:mybatis-config.xml" /> 36 </bean> 37 38 <!-- MapperScannerConfigurer遞歸掃描基準包下所有接口，若它們在SQL映射文件中 定義過， 39 則動態註冊爲MapperFactoryBean，如此即可批量產生映射器實現類--> 40 <!-- 配置DAO --> 41 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 42 <!-- <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> --> 43 <property name="basePackage" value="cn.smbms.dao" /><!-- 指定掃描的基準包 --> 44 </bean> 45 <!-- 配置業務Bean --> 46 <!-- <bean id="userService" class="cn.smbms.service.user.UserServiceImpl"> 47 <property name="userMapper" ref="userMapper" /> 48 </bean> --> 49 <context:component-scan base-package="cn.smbms.service" /> 50 </beans>
b、UserServiceImpl.java（發生變化）
1 package cn.smbms.service.user; 2 3 import java.util.List; 4 5 import javax.annotation.Resource; 6 7 import org.springframework.beans.factory.annotation.Autowired; 8 import org.springframework.stereotype.Service; 9 10 import cn.smbms.dao.user.UserMapper; 11 import cn.smbms.pojo.User; 12 13 @Service("userService") 14 public class UserServiceImpl implements UserService { 15 @Autowired // @Resource 16 private UserMapper userMapper; 17 18 @Override 19 public List<User> findUsersWithConditions(User user) { 20 try { 21 return userMapper.getUserList(user); 22 } catch (RuntimeException e) { 23 e.printStackTrace(); 24 throw e; 25 } 26 } 27 28 // public UserMapper getUserMapper() { 29 // return userMapper; 30 // } 31 // 32 // public void setUserMapper(UserMapper userMapper) { 33 // this.userMapper = userMapper; 34 // } 35 36 }
D、業務層添加聲明式事務
a.applicationContext.xml文件中聲明
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:p="http://www.springframework.org/schema/p" 5 xmlns:context="http://www.springframework.org/schema/context" 6 xmlns:aop="http://www.springframework.org/schema/aop" 7 xmlns:tx="http://www.springframework.org/schema/tx" 8 xsi:schemaLocation="http://www.springframework.org/schema/beans 9 http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 10 http://www.springframework.org/schema/context 11 http://www.springframework.org/schema/context/spring-context-3.2.xsd 12 http://www.springframework.org/schema/tx 13 http://www.springframework.org/schema/tx/spring-tx-3.2.xsd 14 http://www.springframework.org/schema/aop 15 http://www.springframework.org/schema/aop/spring-aop-3.2.xsd"> 16 17 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 18 destroy-method="close"> 19 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 20 <!-- <property name="url"> 21 <value><![CDATA[jdbc:mysql://127.0.0.1:3306/smbms? 22 useUnicode=true&characterEncoding=utf-8]]></value> 23 </property> --> 24 <property name="url" value="jdbc:mysql://127.0.0.1:3306/smbms? 25 useUnicode=true&characterEncoding=utf-8" /> 26 <property name="username" value="root" /> 27 <property name="password" value="root" /> 28 </bean> 29 30 <!-- 配置SqlSessionFactoryBean --> 31 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 32 <!-- 引用數據源組件 --> 33 <property name="dataSource" ref="dataSource" /> 34 <!-- 引用MyBatis配置文件中的配置 --> 35 <property name="configLocation" value="classpath:mybatis-config.xml" /> 36 </bean> 37 <!-- 配置DAO --> 38 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 39 <!-- <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> --> 40 <property name="basePackage" value="cn.smbms.dao" /> 41 </bean> 42 <!-- 配置業務Bean --> 43 <!-- <bean id="userService" class="cn.smbms.service.user.UserServiceImpl"> 44 <property name="userMapper" ref="userMapper" /> 45 </bean> --> 46 <context:component-scan base-package="cn.smbms.service" /> 47 48 <!-- 定義事務管理器 --> 49 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 50 <property name="dataSource" ref="dataSource"></property> 51 </bean> 52 <tx:advice id="txAdvice"> 53 <tx:attributes> 54 <tx:method name="find*" propagation="SUPPORTS" read-only="true"/> 55 <tx:method name="get*" propagation="SUPPORTS" read-only="true"/> 56 <tx:method name="search*" propagation="SUPPORTS" read-only="true"/> 57 <tx:method name="add*" propagation="REQUIRED" /> 58 <tx:method name="save*" propagation="REQUIRED" /> 59 <tx:method name="del*" propagation="REQUIRED" /> 60 <tx:method name="remove*" propagation="REQUIRED" /> 61 <tx:method name="update*" propagation="REQUIRED" /> 62 <tx:method name="modify*" propagation="REQUIRED" /> 63 <tx:method name="*" propagation="REQUIRED" /> 64 </tx:attributes> 65 </tx:advice> 66 67 <!-- 定義切面 --> 68 <aop:config> 69 <aop:pointcut id="serviceMethod" 70 expression="execution(* cn.smbms.service..*.*(..))" /> 71 <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethod" /> 72 </aop:config> 73 </beans>
E、註解實現聲明式事務處理
a、UserServiceImpl.java
1 package cn.smbms.service.user; 2 3 import java.util.List; 4 5 import javax.annotation.Resource; 6 7 import org.springframework.beans.factory.annotation.Autowired; 8 import org.springframework.stereotype.Service; 9 import org.springframework.transaction.annotation.Propagation; 10 import org.springframework.transaction.annotation.Transactional; 11 12 import cn.smbms.dao.user.UserMapper; 13 import cn.smbms.pojo.User; 14 15 @Transactional 16 @Service("userService") 17 public class UserServiceImpl implements UserService { 18 @Autowired // @Resource 19 private UserMapper userMapper; 20 21 @Override 22 @Transactional(propagation = Propagation.SUPPORTS) 23 public List<User> findUsersWithConditions(User user) { 24 try { 25 return userMapper.getUserList(user); 26 } catch (RuntimeException e) { 27 e.printStackTrace(); 28 throw e; 29 } 30 } 31 32 @Override 33 @Transactional(propagation=Propagation.REQUIRED) 34 public boolean addNewUser(User user) { 35 boolean result = false; 36 try { 37 if (userMapper.add(user) == 1) 38 result = true; 39 // int i = 1 / 0; 40 } catch (RuntimeException e) {//拋出運行時異常會事務回滾 41 e.printStackTrace(); 42 throw e; 43 } 44 return result; 45 } 46 47 // public UserMapper getUserMapper() { 48 // return userMapper; 49 // } 50 // 51 // public void setUserMapper(UserMapper userMapper) { 52 // this.userMapper = userMapper; 53 // } 54 55 }
b、applicationContext.xml（添加對註解配置的事務的支持）
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xmlns:p="http://www.springframework.org/schema/p" 5 xmlns:context="http://www.springframework.org/schema/context" 6 xmlns:aop="http://www.springframework.org/schema/aop" 7 xmlns:tx="http://www.springframework.org/schema/tx" 8 xsi:schemaLocation="http://www.springframework.org/schema/beans 9 http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 10 http://www.springframework.org/schema/context 11 http://www.springframework.org/schema/context/spring-context-3.2.xsd 12 http://www.springframework.org/schema/tx 13 http://www.springframework.org/schema/tx/spring-tx-3.2.xsd 14 http://www.springframework.org/schema/aop 15 http://www.springframework.org/schema/aop/spring-aop-3.2.xsd"> 16 17 <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" 18 destroy-method="close"> 19 <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 20 <!-- <property name="url"> 21 <value><![CDATA[jdbc:mysql://127.0.0.1:3306/smbms? 22 useUnicode=true&characterEncoding=utf-8]]></value> 23 </property> --> 24 <property name="url" value="jdbc:mysql://127.0.0.1:3306/smbms? 25 useUnicode=true&characterEncoding=utf-8" /> 26 <property name="username" value="root" /> 27 <property name="password" value="root" /> 28 </bean> 29 30 <!-- 配置SqlSessionFactoryBean --> 31 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> 32 <!-- 引用數據源組件 --> 33 <property name="dataSource" ref="dataSource" /> 34 <!-- 引用MyBatis配置文件中的配置 --> 35 <property name="configLocation" value="classpath:mybatis-config.xml" /> 36 </bean> 37 <!-- 配置DAO --> 38 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> 39 <!-- <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> --> 40 <property name="basePackage" value="cn.smbms.dao" /> 41 </bean> 42 <!-- 配置業務Bean --> 43 <!-- <bean id="userService" class="cn.smbms.service.user.UserServiceImpl"> 44 <property name="userMapper" ref="userMapper" /> 45 </bean> --> 46 <context:component-scan base-package="cn.smbms.service" /> 47 <!-- 定義事務管理器 --> 48 <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> 49 <property name="dataSource" ref="dataSource"></property> 50 </bean> 51 <tx:annotation-driven transaction-manager="transactionManager"/><!-- 添加對註解配置的事務的支持 --> 52 <!-- <tx:advice id="txAdvice"> 53 <tx:attributes> 54 <tx:method name="find*" propagation="SUPPORTS" /> 55 <tx:method name="add*" propagation="REQUIRED" /> 56 <tx:method name="del*" propagation="REQUIRED" /> 57 <tx:method name="update*" propagation="REQUIRED" /> 58 <tx:method name="*" propagation="REQUIRED" /> 59 </tx:attributes> 60 </tx:advice> --> 61 <!-- 定義切面 --> 62 <!-- <aop:config> 63 <aop:pointcut id="serviceMethod" 64 expression="execution(* cn.smbms.service..*.*(..))" /> 65 <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethod" /> 66 </aop:config> --> 67 </beans>
常用兩個事務:
REQUIRED（默認值增刪改）：在有transaction狀態下執行；如當前沒有transaction，則創建新的transaction；
SUPPORTS（查詢）：如當前有transaction，則在transaction狀態下執行；如果當前沒有transaction，在無transaction狀態下執行；
注意：
Spring默認只在拋出runtime exception時才標識事務回滾
