Spring Boot+Spring Data JPA+事务不能正常工作

Question

@Entity
class Person
{
    @Id @GeneratedValue(strategy=GenerationType.AUTO)
    private Integer id;
    private String name;
    //setters & getters
}

@Repository
public interface PersonRepository extends JpaRepository<Person, Integer>{

}


import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@Transactional
class PersonService
{
    @Autowired PersonRepository personRepository;

    @Transactional
    void save(List<Person> persons){
        for (Person person : persons) {         
            if("xxx".equals(person.getName())){
                throw new RuntimeException("boooom!!!");
            }
            personRepository.save(person);          
        }
    }
}

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.SpringApplicationConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@SpringApplicationConfiguration(classes = Application.class)
public class ApplicationTests {

    @Autowired
    PersonService personService;

    @Test
    public void test_logging() {
        List<Person> persons = new ArrayList<Person>();
        persons.add(new Person(null,"abcd"));
        persons.add(new Person(null,"xyz"));
        persons.add(new Person(null,"xxx"));
        persons.add(new Person(null,"pqr"));

        personService.save(persons);
    }

}

这里的期望是它不应该在PERSON表中插入任何记录，因为它会在插入第三个PERSON对象时抛出异常。但是它没有回滚，前2条记录被插入并提交。

然后我想到了快速尝试使用JPA EntityManager。

@PersistenceContext
private EntityManager em;

em.save(person);

然后我得到javax.persistence.TransactionRequiredException：没有可用的事务性EntityManager异常。

然后em.save（person）按预期工作，事务正常工作（意味着在RuntimeException发生时，它正在回滚所有的db插入）。

但是，即使使用Spring 4.0.5+Spring Data JPA1.6.0版本，当使用PersonRepository.save（person）而不是em.persist(person）时，事务也无法工作。

Spring Data JPA存储库似乎正在提交事务。

Maven pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.sivalabs</groupId>
    <artifactId>springboot-data-jpa</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>springboot-data-jpa</name>
    <description>Spring Boot Hello World</description>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.2.0.RELEASE</version>
        <relativePath />
    </parent>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <start-class>com.sivalabs.springboot.Application</start-class>
        <java.version>1.7</java.version>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

    <dependencies>
    <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
    </dependencies>
</project>

application.java

@EnableAutoConfiguration
@Configuration
@ComponentScan
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

Answer 1

来自@M-Deinum的评论：

使您的PersonServicepublic以及您正在调用的方法。

这似乎对几个用户起到了作用。同样的事情也涵盖在这个答案中，引用手册说：