2017-04-24 22 views
0

동일한 트랜잭션 (TestService 서비스 구현의 savePerson() 메소드 내부)에서 두 개의 레코드 (Person)를 삽입하려고합니다.롤백시 스프링 트랜잭션이 DB를 이전 상태로 복원하지 않습니다.

또한 PERSON 테이블의 first_name 열에 고유 한 키 인덱스를 만들었습니다. 따라서 같은 이름의 두 인물을 삽입하려고하면 중복 키 오류가 발생하고 트랜잭션 롤백을 테스트 할 수 있습니다.

savePerson() 메서드를 실행할 때 JTA는 중복 된 키로 인해 롤백을 시작하지만 DB에서도 롤백을 시작하지 않습니다. 여기서 내가 무엇을 놓치고 있니?

MySQL 일반 로그에는 sql "START TRANSACTION"다음에 "ROLLBACK"/ "COMMIT"이 없습니다. 그리고 WildFly 서버를 시작할 때 로그 SQL 문 "SET autocommit = 1"에서 볼 수 있습니다. @Transactional 주석은 DB 수준에서도이 처리 트랜잭션을 처리해야합니까?

저는 spring-boot, hibernate 및 MySQL jdbc를 사용하고 있습니다. 내가 MySQL의 InnoDB 테이블을 사용하고

15:00:54,060 DEBUG default task-12 jta.JtaTransactionManager:367 - Creating new transaction with name [com.example.test.TestServiceImpl.savePerson]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; '',-java.lang.Exception 
15:00:54,066 DEBUG default task-12 support.DefaultListableBeanFactory:251 - Returning cached instance of singleton bean 'transactionManager' 
15:00:54,067 DEBUG default task-12 jta.JtaTransactionManager:476 - Participating in existing transaction 
15:00:54,083 INFO default task-12 stdout:71 - Hibernate: insert into person (age, first_name, last_name) values (?, ?, ?) 
15:00:54,125 DEBUG default task-12 jta.JtaTransactionManager:476 - Participating in existing transaction 
15:00:54,126 INFO default task-12 stdout:71 - Hibernate: insert into person (age, first_name, last_name) values (?, ?, ?) 
15:00:54,134 WARN default task-12 spi.SqlExceptionHelper:129 - SQL Error: 1062, SQLState: 23000 
15:00:54,135 ERROR default task-12 spi.SqlExceptionHelper:131 - Duplicate entry 'John' for key 'idx_first_name_unique' 
15:00:54,137 DEBUG default task-12 jta.JtaTransactionManager:858 - Participating transaction failed - marking existing transaction as rollback-only 
15:00:54,137 DEBUG default task-12 jta.JtaTransactionManager:1074 - Setting JTA transaction rollback-only 
15:00:54,138 DEBUG default task-12 support.DefaultListableBeanFactory:251 - Returning cached instance of singleton bean 'entityManagerFactory' 
15:00:54,140 DEBUG default task-12 jta.JtaTransactionManager:851 - Initiating transaction rollback 

CONSOLE.LOG. 다음은 서버 로그의 (결코 COMMIT, 아니 SET 자동 커밋 = 0, 아니 ROLLBACK ???) 식별자 # 22과 동일한 연결에서이 :

set autocommit = 0 
insert into ... 
insert into ... 
rollback 

:

대신
  22 Connect [email protected] as anonymous on test 
      22 Query /* mysql-connector-java-6.0.6 (Revision: 3dab84f4d9bede3cdd14d57b99e9e98a02a5b97d) */SELECT @@session.auto_increment_increment AS auto_increment_increment, @@character_set_client AS character_set_client, @@character_set_connection AS character_set_connection, @@character_set_results AS character_set_results, @@character_set_server AS character_set_server, @@init_connect AS init_connect, @@interactive_timeout AS interactive_timeout, @@license AS license, @@lower_case_table_names AS lower_case_table_names, @@max_allowed_packet AS max_allowed_packet, @@net_buffer_length AS net_buffer_length, @@net_write_timeout AS net_write_timeout, @@query_cache_size AS query_cache_size, @@query_cache_type AS query_cache_type, @@sql_mode AS sql_mode, @@system_time_zone AS system_time_zone, @@time_zone AS time_zone, @@tx_isolation AS tx_isolation, @@wait_timeout AS wait_timeout 
      22 Query SELECT @@session.autocommit 
      22 Query SET NAMES utf8mb4 
      22 Query SET character_set_results = NULL 
      22 Query SET collation_connection = utf8_general_ci 
      22 Query SET autocommit=1 
      22 Query SET sql_mode='NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES' 
      22 Query SET autocommit=1 
170424 15:02:07 22 Query SHOW FULL TABLES FROM `test` LIKE '%' 
      22 Query SHOW FULL TABLES FROM `test` LIKE '%' 
      22 Query SHOW FULL COLUMNS FROM `person` FROM `test` LIKE '%' 
      22 Query SHOW INDEX FROM `person` FROM `test` 
170424 15:02:24 22 Query SELECT 1 
      22 Query insert into person (age, first_name, last_name) values (40, 'John', 'Smith') 
      22 Query insert into person (age, first_name, last_name) values (40, 'John', 'Smith') 

는 다음과 같이 없어야합니다 TestServiceImpl.java

package com.example.test; 

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

import com.example.test.Person; 

@Service 
public class TestServiceImpl implements TestService { 

    @Autowired 
    private TestRepository testRepository; 

    @Override 
    @Transactional(rollbackFor = Exception.class) 
    public void savePerson() { 
     Person p1 = new Person("John", "Smith", 40); 
     Person p2 = new Person("John", "Smith", 40); 

     testRepository.save(p1); 
     testRepository.save(p2); 
    } 

} 

TestService.java

package com.example.test; 

public interface TestService { 
    public void savePerson(); 
} 
,

TestRepository.java :

package com.example.test; 

import org.springframework.data.jpa.repository.JpaRepository; 
import org.springframework.stereotype.Repository; 

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

} 

Application.java :

package com.example.test; 

import org.springframework.boot.SpringApplication; 
import org.springframework.boot.autoconfigure.SpringBootApplication; 
import org.springframework.boot.builder.SpringApplicationBuilder; 
import org.springframework.boot.web.support.SpringBootServletInitializer; 
import org.springframework.transaction.annotation.EnableTransactionManagement; 

@SpringBootApplication 
@EnableTransactionManagement 
public class Application extends SpringBootServletInitializer { 

    @Override 
    protected SpringApplicationBuilder configure(
      SpringApplicationBuilder application) { 
     return application.sources(Application.class); 
    } 

    public static void main(String[] args) { 

     SpringApplication.run(Application.class, args); 
    } 
} 

Person.java 버전

package com.example.test; 

import javax.persistence.Column; 
import javax.persistence.Entity; 
import javax.persistence.GeneratedValue; 
import javax.persistence.Id; 
import javax.persistence.Table; 
import javax.persistence.Index; 

@Entity 
@Table(name = "PERSON", indexes = { @Index(name = "idx_first_name_unique", columnList = "first_name", unique = true), }) 
public class Person { 

    @Id 
    @GeneratedValue 
    @Column(name = "id") 
    private Integer id; 

    @Column(name = "first_name") 
    private String firstName; 

    @Column(name = "last_name") 
    private String lastName; 

    @Column(name = "age") 
    private Integer age; 

    public Person() { 
    } 

    public Person(String firstname, String lastname, Integer age) { 
     this.firstName = firstname; 
     this.lastName = lastname; 
     this.age = age; 
    } 

    public Integer getId() { 
     return id; 
    } 

    public void setId(Integer id) { 
     this.id = id; 
    } 

    public String getFirstName() { 
     return firstName; 
    } 

    public void setFirstName(String firstName) { 
     this.firstName = firstName; 
    } 

    public String getLastName() { 
     return lastName; 
    } 

    public void setLastName(String lastName) { 
     this.lastName = lastName; 
    } 

    public Integer getAge() { 
     return age; 
    } 

    public void setAge(Integer age) { 
     this.age = age; 
    } 

    @Override 
    public String toString() { 
     return "Person [firstName=" + firstName + ", lastName=" + lastName 
       + ", age=" + age + "]"; 
    } 

} 

POM 종속성 :

<dependencies> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-web</artifactId> 
      <version>1.5.2.RELEASE</version> 
      <exclusions> 
       <exclusion> 
        <groupId>org.springframework.boot</groupId> 
        <artifactId>spring-boot-starter-logging</artifactId> 
       </exclusion> 
      </exclusions> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-log4j2</artifactId> 
      <version>1.5.2.RELEASE</version> 
     </dependency> 
     <dependency> 
      <groupId>com.vaadin</groupId> 
      <artifactId>vaadin-spring-boot-starter</artifactId> 
      <version>2.0.1</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-tomcat</artifactId> 
      <version>1.5.2.RELEASE</version> 
      <scope>provided</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-test</artifactId> 
      <version>1.5.2.RELEASE</version> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.boot</groupId> 
      <artifactId>spring-boot-starter-data-jpa</artifactId> 
      <version>1.5.2.RELEASE</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hibernate.javax.persistence</groupId> 
      <artifactId>hibernate-jpa-2.1-api</artifactId> 
      <version>1.0.0.Final</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-entitymanager</artifactId> 
      <version>5.2.10.Final</version> 
     </dependency> 
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-core</artifactId> 
      <version>5.2.10.Final</version> 
     </dependency> 
     <dependency> 
      <groupId>mysql</groupId> 
      <artifactId>mysql-connector-java</artifactId> 
      <version>6.0.6</version> 
     </dependency> 
</dependencies> 

application.properties는 : 잠시 파고 후

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test 
spring.datasource.username=test 
spring.datasource.password=test 
spring.datasource.driverClassName=com.mysql.jdbc.Driver 

spring.jpa.show-sql=true 
spring.jpa.hibernate.ddl-auto=update 
spring.jpa.hibernate.naming-strategy=org.hibernate.cfg.ImprovedNamingStrategy 
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL57InnoDBDialect 
+0

API 호출 JDBC 연결'setAutoCommit (false)'를 사용하여 트랜잭션을 시작합니다. 'START TRANSACTION'이 표시되지 않는 이유는 JDBC 드라이버가 이전 MySQL 버전 https://github.com/mysql/mysql-connector-j와의 하위 호환성으로부터'SET autocommit = 0' 남은 것으로 남겨두고 있기 때문입니다 /blob/6.0.6/src/main/java/com/mysql/cj/jdbc/ConnectionImpl.java#L3773 – coladict

+0

또한 MySQL의 경우 테이블에 사용중인 스토리지 엔진이 무엇인지 중요합니다. InnoDB와 NDB 만 트랜잭션을 지원합니다. https://dev.mysql.com/doc/refman/5.5/en/storage-engines.html – coladict

+0

해명 해 주셔서 감사합니다. 하지만 여전히, WildFly를 시작할 때 MySQL 서버 로그에는 "SET autocommit = 1"만 표시됩니다. "SET autocommit = 0"이 아닌가요? 어쨌든 트랜잭션은 DB에서 롤백되지 않습니다. autocommit을 true로 설정하면 자동으로 하나의 트랜잭션으로 실행된다는 것을 알 수 있습니다. DB 수준에서도 트랜잭션을 수행하는 방법을 모르겠습니다. –

답변

0

, 나는 그것을 발견! 마침내. :)

1) 표준 DB 트랜잭션 작업 (BEGIN/COMMIT/ROLLBACK)을 사용하려면 JTA를 비활성화해야합니다. 스프링 부트를 사용하면 application.properties에서 수행 할 수 있습니다.

application.properties :

spring.jta.enabled = false 

2) JTA를 사용하는 경우 당신은 XA 2 단계 특정 데이터베이스에 대한 커밋 프로토콜을 사용하도록 설정해야합니다.배포 된 응용 프로그램은 Wildfly AS에서 JTA TransactionManager 구현을 사용하기 때문에 모든 데이터 소스를 구성해야합니다. 그리고 application.properties에서 일부 JNDI 이름을 사용하여 데이터 소스를 참조하기 만하면됩니다.

제이보스 독립-demo.xml :

... 
      <datasources> 
       ... 
       <xa-datasource jndi-name="java:jboss/datasources/test" pool-name="TestXADS" enabled="true"> 
        <xa-datasource-property name="url"> 
         jdbc:mysql://127.0.0.1:3306/test 
        </xa-datasource-property> 
        <driver>mysql</driver> 
        <xa-pool> 
         <min-pool-size>10</min-pool-size> 
         <max-pool-size>20</max-pool-size> 
         <prefill>true</prefill> 
        </xa-pool> 
        <security> 
         <user-name>test</user-name> 
         <password>test</password> 
        </security> 
       </xa-datasource> 
       <drivers> 
        ... 
        <driver name="mysql" module="com.mysql"> 
         <xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class> 
        </driver> 
       </drivers> 
      </datasources> 
... 

모듈/COM/mysql을/주 /을 Module.xml :

<?xml version="1.0" encoding="UTF-8"?> 
<module xmlns="urn:jboss:module:1.0" name="com.mysql"> 
    <resources> 
     <resource-root path="mysql-connector-java-5.1.41-bin.jar"/> 
    </resources> 
    <dependencies> 
     <module name="javax.api"/> 
     <module name="javax.transaction.api"/> 
    </dependencies> 
</module> 

application.properties :

spring.datasource.jndi-name=java:jboss/datasources/test