spring註解事務及事務回滾失敗的原因
阿新 • • 發佈:2019-01-10
背景
spring支援程式設計式事務管理和宣告式事務管理兩種方式。
程式設計式事務管理使用TransactionTemplate或者直接使用底層的PlatformTransactionManager。對於程式設計式事務管理,spring推薦使用TransactionTemplate。
宣告式事務管理建立在AOP之上的。其本質是對方法前後進行攔截,然後在目標方法開始之前建立或者加入一個事務,在執行完目標方法之後根據執行情況提交或者回滾事務。
宣告式事務管理也有兩種常用的方式,一種是基於tx和aop名字空間的xml配置檔案,另一種就是基於@Transactional註解。顯然基於註解的方式更簡單易用,更清爽。
自動提交(AutoCommit)與連線關閉時的是否自動提交
自動提交
預設情況下,資料庫處於自動提交模式。每一條語句處於一個單獨的事務中,在這條語句執行完畢時,如果執行成功則隱式的提交事務,如果
執行失敗則隱式的回滾事務。
spring註解事務的實現
maven建立一個普通專案,當然web專案也可以,我這裡是一個web專案
pom.xm如下,本身是用不到這麼多jar,直接從專案中拷貝的,懶得刪。
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.bamboo</groupId>
<artifactId>anoTest</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version >
<name>anoTest Maven Webapp</name>
<url>http://maven.apache.org</url>
<repositories>
<repository>
<id>nexus_public</id>
<name>nexus_public</name>
<url>http://repo.maven.apache.org/maven2/</url>
<releases>
<enabled>true</enabled>
</releases>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>nexus_public</id>
<name>nexus_public</name>
<!-- <url>http://repository.jboss.org/nexus/content/repositories/root_repository/maven2/</url> -->
<url>http://repo.maven.apache.org/maven2/</url>
<layout>default</layout>
<snapshots>
<enabled>false</enabled>
</snapshots>
<releases>
<updatePolicy>never</updatePolicy>
</releases>
</pluginRepository>
</pluginRepositories>
<!-- 專案屬性 -->
<properties>
<!-- jar 版本設定 -->
<spring.version>4.1.0.RELEASE</spring.version>
<shiro.version>1.2.3</shiro.version>
<mybatis.version>3.2.8</mybatis.version>
<mybatis-spring.version>1.2.2</mybatis-spring.version>
<mysql.version>5.1.26</mysql.version>
<druid.version>1.0.9</druid.version>
<junit.version>3.8.1</junit.version>
<log4j.version>1.2.17</log4j.version>
<slf4j.version>1.7.5</slf4j.version>
<poi.version>3.10-FINAL</poi.version>
<commons-lang3.version>3.1</commons-lang3.version>
<commons-io.version>2.4</commons-io.version>
<commons-codec.version>1.8</commons-codec.version>
<commons-fileupload.version>1.3.1</commons-fileupload.version>
<commons-beanutils.version>1.8.3</commons-beanutils.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<jdk.version>1.7</jdk.version>
</properties>
<dependencies>
<!-- spring相關包 -->
<!-- Spring -->
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>servlet-api</artifactId>
<version>6.0.37</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 切面jar -->
<dependency>
<groupId>aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.5.4</version>
</dependency>
<!-- javax提供的annotation,注入的註解jar -->
<dependency>
<groupId>javax.inject</groupId>
<artifactId>javax.inject</artifactId>
<version>1</version>
</dependency>
<!-- 日誌架包 -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.21</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!--springMVC 依賴json解析jar -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.1.0</version>
</dependency>
<!--Apache Shiro所需的jar包 -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-core</artifactId>
<version>${shiro.version}</version>
</dependency>
<!-- <dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-ehcache</artifactId>
<version>${shiro.version}</version>
</dependency> -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-web</artifactId>
<version>${shiro.version}</version>
</dependency>
<!-- <dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-quartz</artifactId>
<version>${shiro.version}</version>
</dependency> -->
<dependency>
<groupId>org.apache.shiro</groupId>
<artifactId>shiro-spring</artifactId>
<version>${shiro.version}</version>
</dependency>
<!-- 資料庫連線dbcp -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<!-- mysql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!-- fileupload的jar -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io.version}</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
<!-- apache 常用包 -->
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.8.3</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.1</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<!-- 頁面裝飾 -->
<dependency>
<groupId>opensymphony</groupId>
<artifactId>sitemesh</artifactId>
<version>2.4.2</version>
</dependency>
<!-- jstl -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 快取ehcache -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache-core</artifactId>
<version>2.8.3</version>
</dependency>
<!-- ehcache快取jar -->
<!-- <dependency>
<groupId>com.googlecode.ehcache-spring-annotations</groupId>
<artifactId>ehcache-spring-annotations</artifactId>
<version>1.2.0</version>
<type>jar</type>
<scope>compile</scope>
</dependency> -->
</dependencies>
<build>
<finalName>onedollar</finalName>
</build>
</project>
spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:ehcache="http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd
http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring http://ehcache-spring-annotations.googlecode.com/svn/schema/ehcache-spring/ehcache-spring-1.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd">
<!-- 自動掃描 -->
<context:component-scan base-package="anotest" />
<!-- 定義一個數據源 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://127.0.0.1/shiro" />
<property name="username" value="root" />
<property name="password" value="root" />
<property name="initialSize" value="3" /><!-- initial connections -->
<property name="maxActive" value="10" /><!-- MAX connections -->
<property name="maxIdle" value="5" /><!-- MAX idle connections -->
<property name="minIdle" value="2" /><!-- MIN idle connections -->
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="validationQuery" value="select 1" />
<property name="timeBetweenEvictionRunsMillis" value="20000" />
<property name="numTestsPerEvictionRun" value="100" />
</bean>
<!-- spring和MyBatis完美整合,不需要mybatis的配置對映檔案 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 自動掃描mapping.xml檔案 -->
<property name="mapperLocations" value="classpath:anotest/mapper/*.xml"></property>
<property name="typeAliasesPackage" value="anotest" />
</bean>
<!-- DAO介面所在包名,Spring會自動查詢其下的類 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="anotest.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
<!-- 配置事務管理器 -->
<bean id="txManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
p:dataSource-ref="dataSource">
</bean>
<!-- enables scanning for @Transactional annotations -->
<tx:annotation-driven transaction-manager="txManager" proxy-target-class="true" />
<!-- 配置事物的攔截方式 -->
<!-- <tx:advice id="transAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="insert*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="modify*" propagation="REQUIRED" />
<tx:method name="remove*" propagation="REQUIRED" />
<tx:method name="find*" propagation="SUPPORTS" />
<tx:method name="get*" propagation="SUPPORTS" />
<tx:method name="select*" propagation="SUPPORTS" />
<tx:method name="query*" propagation="SUPPORTS" />
<tx:method name="*" propagation="SUPPORTS" />
</tx:attributes>
</tx:advice> -->
<!-- 事物配置掃描包 -->
<!-- <aop:config proxy-target-class="true">
<aop:pointcut expression="execution(* anotest.*impl.*(..))" id="transcationPointcut" />
<aop:advisor advice-ref="transAdvice" pointcut-ref="transcationPointcut" />
</aop:config> -->
</beans>
程式碼片段
建立包名
anotest.dao
anotest.mapper
anotest.service.impl
LogDao.java
package anotest.dao;
import anotest.Log;
/**
* log頁面表 資料庫處理類
*/
public interface LogDao {
void add(Log log);
}
LogMapper.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="anotest.dao.LogDao">
<resultMap type="Log" id="Log">
<id column="LOG_ID" property="logId" javaType="java.lang.Long" jdbcType="BIGINT"/>
<result column="IMEI_CODE" property="imeiCode" javaType="java.lang.String" jdbcType="VARCHAR"/>
<result column="DAY_TIME" property="dayTime" javaType="java.lang.String" jdbcType="VARCHAR"/>
</resultMap>
<!-- 全部欄位,一般用於明細查詢 -->
<sql id="AllColumnlist">
LOG_ID,IMEI_CODE,DAY_TIME
</sql>
<!-- 常見欄位,一般用於列表查詢,可能不包含備註之類的欄位 -->
<sql id="CommonColumnlist">
LOG_ID,IMEI_CODE,DAY_TIME
</sql>
<insert id="add" parameterType="Log" useGeneratedKeys="true" keyProperty="LogId">
insert into T_LOG (
<if test="logId!=null">
LOG_ID,
</if>
IMEI_CODE,
DAY_TIME
) values (
<if test="logId!=null">
#{logId,jdbcType = BIGINT},
</if>
#{imeiCode,jdbcType = VARCHAR},
#{dayTime,jdbcType = VARCHAR}
)
</insert>
<delete id="delete">
delete from T_LOG
<where>
Log_ID=#{0}
</where>
</delete>
<select id="get" resultMap="Log">
select <include refid="AllColumnlist"/> from T_LOG
<where>
LOG_ID=#{0}
</where>
</select>
<select id="getLogByCode" parameterType="java.lang.String" resultMap="Log">
select * from T_LOG
<where>
IMEI_CODE=#{0}
</where>
</select>
</mapper>
Log.java
package anotest;
public class Log {
private static final long serialVersionUID = 1l;
/*Auto generated properties start*/
//log-id
private Long logId;
//IMEI編號
private String imeiCode;
//年月日
private String dayTime;
/*Auto generated methods start*/
public Log() {
}
/**
* @param imeiCode
* @param dayTime
*/
public Log(String imeiCode, String dayTime) {
super();
this.imeiCode = imeiCode;
this.dayTime = dayTime;
}
/*Auto generated methods end*/
/*Customized methods start*/
/*Customized methods end*/
public Long getLogId() {
return logId;
}
public void setLogId(Long logId) {
this.logId = logId;
}
public String getImeiCode() {
return imeiCode;
}
public void setImeiCode(String imeiCode) {
this.imeiCode = imeiCode;
}
public String getDayTime() {
return dayTime;
}
public void setDayTime(String dayTime) {
this.dayTime = dayTime;
}
@Override
public String toString() {
return "Log [logId=" + logId + ", imeiCode=" + imeiCode + ", dayTime="
+ dayTime + "]";
}
}
TestService.java
package anotest.service;
import anotest.Log;
/**
* @ClassName: TestService
* @Description: TODO(這裡用一句話描述這個類的作用)
* @author bamboo <a href="mailto:[email protected]?subject=hello,bamboo&body=Dear Bamboo:%0d%0a描述你的問題:">Bamboo</a>
* @date 2017年3月7日 上午10:17:06
* @since
*/
public interface TestService {
public void addCatch() throws Exception;
public void addTest();
}
TestServiceImpl.java
package anotest.service.impl;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import anotest.Log;
import anotest.dao.LogDao;
import anotest.service.TestService;
/**
* @ClassName: TestServiceImpl
* @Description: TODO(這裡用一句話描述這個類的作用)
* @author bamboo <a href="mailto:[email protected]?subject=hello,bamboo&body=Dear Bamboo:%0d%0a描述你的問題:">Bamboo</a>
* @date 2017年3月7日 上午10:38:42
* @since
*/
@Service
//預設將類中的所有函式納入事務管理.
@Transactional
public class TestServiceImpl implements TestService{
@Resource
private LogDao logDao;
/***
* 捕獲異常後但是不丟擲去是無法執行回滾事務的
* 建議:用本方式寫,使上層方法能夠檢測到資料插入失敗,因此必須丟擲異常,然後在呼叫它的方法中捕獲異常並提示使用者資料提交失敗
* @throws Exception
*/
@Transactional
public void addCatch() throws Exception {
// TODO Auto-generated method stub
try {
SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
String dayTime=format.format(new Date());
Log log =new Log("ABCD", dayTime);
log.setLogId(System.currentTimeMillis());
System.out.println(log.toString());
// 呼叫Dao執行插入操作
logDao.add(log);//正常常資料
log.setDayTime(dayTime+"yyyyyyyyyyyyyyyyyyy");
// 呼叫Dao執行插入操作
logDao.add(log);//異常資料
} catch (Exception e) {
// TODO Auto-generated catch block
System.out.println("插入失敗");
//throw new Exception(e);//注意:正常環境中必須去掉本行註釋,當把這行去掉註釋事務回滾就會起作用
}
}
/******
* 執行時異常不作捕獲則則能夠正常執行回滾事務
*/
@Transactional
public void addTest() {
// TODO Auto-generated method stub
SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
String dayTime=format.format(new Date());
Log log =new Log("ABCD", dayTime);
log.setLogId(System.currentTimeMillis());
System.out.println(log.toString());
// 呼叫Dao執行插入操作
logDao.add(log);
log.setDayTime(dayTime+"yyyyyyyyyyyyyyyyyyy");