java - @Transactional 在 Spring 中不回滚事务

Question

我正在使用 Spring Jdbc 和 @Transactional 注释作为在数据库中插入数据的方法。代码片段是:

@Transactional(rollbackForClassName={"Exception"})
    public PreBookingResponse saveData(Tip trip, HttpServletRequest request) throws Exception {
        PreBookingResponse preBookingResponse = null;
        try {
            String bookingRefNo = "89";
            trip.setBookingRefNo(bookingRefNo);
            MinimumUserProfile userProfile = JwtService.getUserFromToken(request);
            String userId = userProfile.getUserId();
            
            if (tripDao.saveTripData(trip, userId)) {
                preBookingResponse = new PreBookingResponse(0, "");
                preBookingResponse.setBookingRefNo(bookingRefNo);
                preBookingResponse.setSearchId(trip.getSearchId());
                preBookingResponse.setId(trip.getId());
            }
        }catch(Exception e)
        {
            String errorMsg = "Error occur while saving trip data due to: " + e.getMessage();
            log.error(errorMsg);
            preBookingResponse = new PreBookingResponse(2, errorMsg);
            preBookingResponse.setBookingRefNo(trip.getBookingRefNo());
            preBookingResponse.setSearchId(trip.getSearchId());
            throw e;
        }
        return preBookingResponse;
    }

内部函数tripDao.saveTripData(trip, userId) 我正在多个表中插入数据。当插入数据时发生任何异常时，所有插入操作都应该回滚，但事实并非如此。

我的 spring-config.xml 是(我从另一个项目导入的):

<?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:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">
    
    
    <!-- Enable Annotation based Declarative Transaction Management -->
    <tx:annotation-driven proxy-target-class="true"
        transaction-manager="transactionManager" />
        
    

    <!-- Creating TransactionManager Bean, since JDBC we are creating of type 
        DataSourceTransactionManager -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
    
    <!-- MySQL database connection -->
    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="url" value="jdbc:mysql://localhost:3306/aapi"></property>
        <!-- Changed to mysql-connector-java 5.x since 6 is in beta phase  -->
        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
        <property name="username" value="root"></property>
        <property name="password" value="root"></property>
    </bean>
    
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
</beans>

我的build.gradle是:

buildscript {
    ext {
        springBootVersion = '1.5.2.RELEASE'
    }
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
    }
}


apply plugin: 'java'
apply plugin: 'eclipse-wtp'
apply plugin: 'org.springframework.boot'

sourceCompatibility = 1.8
targetCompatibility = 1.8

repositories {
    jcenter()
}

dependencies {
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '1.5.2.RELEASE'
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-security', version: '1.5.2.RELEASE'

    compile project(':supplier-commons')
    runtime project(':supplier-commons')

    compile 'org.springframework:spring-context:4.2.6.RELEASE'
    compile 'org.springframework:spring-webmvc:4.2.6.RELEASE'
    compile group: 'mysql', name: 'mysql-connector-java', version: '5.1.6'
    compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.7'
    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.7'
    compile group: 'com.typesafe.akka', name: 'akka-actor_2.11', version: '2.4.1'
    compile 'io.jsonwebtoken:jjwt:0.7.0'
    compile group: 'javax.mail', name: 'mail', version: '1.4'
    compile group: 'freemarker', name: 'freemarker', version: '2.3.9'
    compile group: 'org.springframework.security', name: 'spring-security-crypto', version: '4.2.2.RELEASE'
    compile group: 'org.apache.commons', name: 'commons-email', version: '1.4'
    compile group: 'com.thoughtworks.xstream', name: 'xstream', version: '1.4.9'
    compile group: 'org.jmockit', name: 'jmockit', version: '1.8'
    compile 'io.jsonwebtoken:jjwt:0.7.0'
    compile group: 'com.ning', name: 'async-http-client', version: '1.6.4'
    compile group: 'org.mockito', name: 'mockito-all', version: '1.8.4'
    compile group: 'io.reactivex.rxjava2', name: 'rxjava', version: '2.0.7'
 
    runtime('org.springframework.boot:spring-boot-devtools')
    compileOnly('org.springframework.boot:spring-boot-configuration-processor')
    compile group: 'org.aspectj', name: 'aspectjweaver', version: '1.8.8'
    // https://mvnrepository.com/artifact/org.springframework/spring-tx
    compile group: 'org.springframework', name: 'spring-tx', version: '4.1.4.RELEASE'
    // https://mvnrepository.com/artifact/org.eclipse.persistence/javax.persistence
compile group: 'org.eclipse.persistence', name: 'javax.persistence', version: '2.1.0'
    // https://mvnrepository.com/artifact/org.hibernate/hibernate-core

    // https://mvnrepository.com/artifact/org.hibernate/hibernate-core
compile group: 'org.hibernate', name: 'hibernate-core', version: '3.6.5.Final'
    // https://mvnrepository.com/artifact/org.springframework/spring-orm
compile group: 'org.springframework', name: 'spring-orm', version: '4.3.8.RELEASE'
    // https://mvnrepository.com/artifact/org.hibernate/hibernate
compile group: 'org.hibernate', name: 'hibernate', version: '3.2.6.ga'
    
    testCompile 'junit:junit:4.12'
   
}

springBoot {
    executable = true
}

eclipse {

  wtp {
    facet {
        facet name: 'jst.web', version: '2.4'
    }
  
    component {
      contextPath = 'aggregator-api'
    }
    
  }
}

为什么事务没有回滚？

Answer 1

此代码不会回滚事务，因为异常不会被抛出回该方法。

@Transactional(rollbackForClassName={"Exception"}) 表示当该方法抛出异常时回滚事务。但在您的情况下，您正在捕获异常并返回正确的响应，因此事务正在提交。 Spring 围绕此方法调用创建一个 AOP 事务建议，如果方法正常返回，则成功提交；如果从此方法抛出异常，则回滚。

要回滚，要么从此方法抛出异常，要么将 try block 内的代码移动到不同的方法，并用@Transactional(rollbackForClassName={"Exception"})