审计 + spring-boot-data-jpa + Hibernate + JPA 2 事务异常

Question

我苦苦挣扎了 2 天，试图解决这个问题，但我不知道我还能做什么。在我将@Audit 包含在实体中之前，我的系统运行良好。当然，我在 .pom 文件中包含了 Hibernate Envers。

<dependency>
  <groupId>org.hibernate</groupId>
  <artifactId>hibernate-envers</artifactId>
</dependency>

我已经尝试过这些帖子：

Hibernare envers Audit with Spring data JPA and Spring Boot

spring-data-envers Hibernate java.lang.NoSuchMethodError: org.hibernate.engine.spi.SessionImplementor.getTransactionCoordinator

Hibernate-envers throwing exception when Deleting entity with a collection using CrudRepository

但不幸的是，根本没有成功:(

我检查了我的maven repository，发现无论我在 .pom 文件中设置什么版本，它都在使用 hibernate 5.0.12.Final 版本的 hibernate-core、hibernate-entitymanager 和 hibernate-envers。

这是我的 .pom 文件的依赖项：

<dependencies>
  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
  </dependency>
  <dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-envers</artifactId>
  </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.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jersey</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-web-services</artifactId>
  </dependency>
  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-devtools</artifactId>
    <scope>runtime</scope>
  </dependency>
  <dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-web</artifactId>
    <version>4.2.3.RELEASE</version>
  </dependency>
  <dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-config</artifactId>
    <version>4.2.3.RELEASE</version>
  </dependency>
  <dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt</artifactId>
    <version>0.7.0</version>
  </dependency>
  <dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
    <version>42.1.3</version>
  </dependency>
  <dependency>
    <groupId>com.zaxxer</groupId>
    <artifactId>HikariCP</artifactId>
    <version>2.6.1</version><!--$NO-MVN-MAN-VER$-->
  </dependency>

  <dependency>
    <groupId>io.swagger</groupId>
    <artifactId>swagger-core</artifactId>
    <version>1.5.13</version>
  </dependency>

  <dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
  </dependency>
  <dependency>
    <groupId>org.springframework.restdocs</groupId>
    <artifactId>spring-restdocs-mockmvc</artifactId>
    <scope>test</scope>
  </dependency>

  <dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.16</version>
  </dependency>
</dependencies>

这里是监听类

public class BRAuditEnversListener implements RevisionListener {
  protected static final Logger log = Logger.getLogger("com.zerofila.web");

  @Autowired
  private UserService service;

  @Override
  public void newRevision(Object revisionEntity) {        
    BRAuditRevisionEntity customRevisionEntity = (BRAuditRevisionEntity) revisionEntity;
    customRevisionEntity.setUsername( service.getAuthenticatedUser().getEmail() );
  }
}

Revinfo 类：

@Entity
@Table(name = "revinfo")
@RevisionEntity(BRAuditEnversListener.class)
public class BRAuditRevisionEntity implements Serializable {
  private static final long serialVersionUID = 1L;

  @RevisionNumber
  private int id;
  @RevisionTimestamp
  private long timestamp;
  private String username;

  @Id
  @GeneratedValue(strategy = GenerationType.IDENTITY)
  public int getId() {
    return id;
  }

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

  @Transient
  public Date getRevisionDate() {
    return new Date(timestamp);
  }

  public long getTimestamp() {
    return timestamp;
  }

  public void setTimestamp(long timestamp) {
    this.timestamp = timestamp;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) {
        return true;
    }
    if (!(o instanceof DefaultRevisionEntity)) {
        return false;
    }

    DefaultRevisionEntity that = (DefaultRevisionEntity) o;

    if (id != that.getId()) {
        return false;
    }
    if (timestamp != that.getTimestamp()) {
        return false;
    }

    return true;
  }

  @Override
  public int hashCode() {
    int result;
    result = id;
    result = 31 * result + (int) (timestamp ^ (timestamp >>> 32));
    return result;
  }

  @Override
  public String toString() {
    return "DefaultRevisionEntity(id = " + id + ", revisionDate = " + DateFormat.getDateTimeInstance().format(getRevisionDate()) + ")";
  }

  public String getUsername() {
    return username;
  }

  public void setUsername(String username) {
    this.username = username;
  }
}

调用插入方法的Web服务端点：

    @Override
@RequestMapping(value = "/create", method = RequestMethod.POST)
public ResponseEntity<Local> create(@ApiParam(value = "Local json stream resource", required = true) @Valid @RequestBody Local local) {
    Local created = service.insert(local);

    if (null == created)
        return new ResponseEntity<>(HttpStatus.NOT_MODIFIED);

    return new ResponseEntity<Local>(created, HttpStatus.CREATED);
}

这是一个抛出异常的方法：

@Transactional
@Override
public Local insert(Local local) {
    return repository.save( local );
}

最后，例外（很短，顺便说一句）：

2017-08-26 20:18:52.006 ERROR 2784 --- [nio-8080-exec-4] org.hibernate.AssertionFailure           : HHH000099: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session): java.lang.NullPointerException
2017-08-26 20:18:52.009  WARN 2784 --- [nio-8080-exec-4] .m.m.a.ExceptionHandlerExceptionResolver : Resolved exception caused by Handler execution: org.springframework.transaction.TransactionSystemException: Could not commit JPA transaction; nested exception is javax.persistence.RollbackException: Error while committing the transaction

我需要配置一些特殊的东西吗？也许添加一些注释？知道我能做什么吗？

Answer 1

经过很长时间（大约 3 天）的尝试、测试和分析所有来源，我发现了错误并因此找到了解决方案。

由于此条目而发生错误：

@Autowired
private UserService service;

由于某种原因，service.getAuthenticatedUser() 返回 null，然后抛出异常。

我的解决方案是直接从SecurityContextHolder 获取经过身份验证的用户，如下所示：

public class BRAuditEnversListener implements RevisionListener {

    @Override
    public void newRevision(Object revisionEntity) {        
        BRAuditRevisionEntity customRevisionEntity = (BRAuditRevisionEntity) revisionEntity;
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        customRevisionEntity.setUsername( (String)authentication.getPrincipal() );
    }
}

现在，一切正常：)