java - Spring 数据存储库自定义查询

我正在使用一个带有postgres数据库的spring引导应用程序，在启动时确实遇到了一个异常。
例外情况是：

Caused by: java.lang.AbstractMethodError: org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(Ljava/lang/reflect/Method;Lorg/springframework/data/repository/core/RepositoryMetadata;Lorg/springframework/data/projection/ProjectionFactory;Lorg/springframework/data/repository/core/NamedQueries;)Lorg/springframework/data/repository/query/RepositoryQuery;
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:435) ~[spring-data-commons-1.12.1.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:220) ~[spring-data-commons-1.12.1.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:266) ~[spring-data-commons-1.12.1.RELEASE.jar:na]
    at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:252) ~[spring-data-commons-1.12.1.RELEASE.jar:na]
    at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92) ~[spring-data-jpa-1.9.4.RELEASE.jar:na]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1637) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1574) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE]

我试图创建一个带有自定义查询的存储库，它如下所示：

public interface LastRunRepository extends PagingAndSortingRepository<LastRun, Long> {
    LastRun findFirst1OrderByStartDateDesc();
}

我上次运行的实体看起来像：

import javax.persistence.*;
import java.util.Date;

@Entity(name = "last_run")
public class LastRun {

    @Id
    @GeneratedValue(strategy= GenerationType.IDENTITY)
    private Long id;

    @Column(name="start_date", nullable = false)
    private Date startDate;

    public LastRun() {
    }

    public LastRun(Date startDate) {
        this.startDate = startDate;
    }

    public Long getId() {
        return id;
    }

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

    public Date getStartDate() {
        return startDate;
    }

    public void setStartDate(Date startDate) {
        this.startDate = startDate;
    }

    @Override
    public String toString() {
        return "LastRun{" +
                "id=" + id +
                ", startDate=" + startDate +
                '}';
    }
}

如果我使用的只是标准查询，比如find或save，那么它的工作方式就像一个符咒。但是一旦我定义了一个自定义查询，它就会抛出这个异常。
在mvn dependency:tree中，我可以看到springdatajpa1.9.4版本来自sprint bootstarterdatajpa。

+- org.springframework.boot:spring-boot-starter-data-jpa:jar:1.3.3.RELEASE:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter-aop:jar:1.3.3.RELEASE:compile
[INFO] |  |  \- org.aspectj:aspectjweaver:jar:1.8.8:compile
[INFO] |  +- org.springframework.boot:spring-boot-starter-jdbc:jar:1.3.3.RELEASE:compile
[INFO] |  |  \- org.apache.tomcat:tomcat-jdbc:jar:8.0.32:compile
[INFO] |  |     \- org.apache.tomcat:tomcat-juli:jar:8.0.32:compile
[INFO] |  +- org.hibernate:hibernate-entitymanager:jar:4.3.11.Final:compile
[INFO] |  |  +- org.jboss.logging:jboss-logging-annotations:jar:1.2.0.Beta1:compile
[INFO] |  |  +- org.hibernate:hibernate-core:jar:4.3.11.Final:compile
[INFO] |  |  |  +- antlr:antlr:jar:2.7.7:compile
[INFO] |  |  |  \- org.jboss:jandex:jar:1.1.0.Final:compile
[INFO] |  |  +- dom4j:dom4j:jar:1.6.1:compile
[INFO] |  |  |  \- xml-apis:xml-apis:jar:1.0.b2:compile
[INFO] |  |  +- org.hibernate.common:hibernate-commons-annotations:jar:4.0.5.Final:compile
[INFO] |  |  +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile
[INFO] |  |  \- org.javassist:javassist:jar:3.18.1-GA:compile
[INFO] |  +- javax.transaction:javax.transaction-api:jar:1.2:compile
[INFO] |  +- org.springframework.data:spring-data-jpa:jar:1.9.4.RELEASE:compile
+- org.springframework.data:spring-data-commons:jar:1.12.1.RELEASE:compile

我使用的是最新版本的spring data jpa和spring data commons。
那么，spring data commons:jar:1.12.1.RELEASE和spring data jpa:jar:1.9.4.RELEASE（spring boot starter data jpa:jar:1.3.3.RELEASE）不兼容吗？

最佳答案

我也有同样的问题。我确认这是由于不兼容的spring数据和spring引导依赖关系造成的。
pom.xml示例：

  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.5.RELEASE</version>
  </parent>

  <dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-elasticsearch</artifactId>
    <version>2.0.0.RELEASE</version>
  </dependency>

在上面的pom中，Eclipse会发出一个警告，覆盖manage version1.3.4.RELEASE，如果您启动应用程序，就会得到所描述的异常。
您应该删除该版本并使用与spring-boot-starter-parent中给定的版本相同的依赖项：

  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.3.5.RELEASE</version>
  </parent>

  <dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-elasticsearch</artifactId>
  </dependency>