当使用多个数据源时，如何与Repository使用相同的名称？

Question

这两个数据库有一些相同的名称表，例如带有名称摘要的表，当我创建存储库时，发生了错误！我该怎么办？错误是：

@Autowired
SummaryDao summaryDao;

  

RROR o.s.b.d.LoggingFailureAnalysisReporter -

     

***************************申请失败

           

说明

     

现场总结道   com.tc.spider.schedule.logic.combination.CombinationDailyNetLogic   需要一个'com.tc.spider.dao.user.SummaryDao'类型的bean   找不到。

     

动作：

     

考虑定义'com.tc.spider.dao.user.SummaryDao'类型的bean   在你的配置中。

数据源配置文件如下：

`

package com.tc.spider.config.db;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.core.JdbcTemplate;

import javax.sql.DataSource;


@Configuration
public class DataSourceConfig {
    @Bean(name = "primaryDataSource")
    @Qualifier("primaryDataSource")
    @Primary // 该数据源为主数据源
    @ConfigurationProperties(prefix = "spring.datasource.tct")
    public DataSource primaryDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean(name = "secondaryDataSource")
    @Qualifier("secondaryDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.market")
    public DataSource secondaryDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean
    @Primary // jdbc默认的主数据源
    public JdbcTemplate primaryJdbcTemplate(DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }

    @Bean(name = "marketJdbcTemplate")
    public JdbcTemplate marketJdbcTemplate(@Qualifier("secondaryDataSource") DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }
}

`

主数据源 `

package com.tc.spider.config.db;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.persistence.EntityManager;
import javax.sql.DataSource;
import java.util.Map;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef = "entityManagerFactoryPrimary", // 配置连接工厂 entityManagerFactory
        transactionManagerRef = "transactionManagerPrimary", // 配置 事物管理器  transactionManager
        basePackages = {"com.tc.spider.dao.user"}) // 设置Repository所在位置
public class PrimaryConfig {

    @Autowired
    @Qualifier("primaryDataSource")
    private DataSource primaryDataSource;

    @Bean(name = "entityManagerPrimary")
    @Primary
    public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
        return entityManagerFactoryPrimary(builder).getObject().createEntityManager();
    }

    @Bean(name = "entityManagerFactoryPrimary")
    @Primary
    public LocalContainerEntityManagerFactoryBean entityManagerFactoryPrimary(EntityManagerFactoryBuilder builder) {
        return builder
                // 设置数据源
                .dataSource(primaryDataSource)
                // 设置数据源属性
                .properties(getVendorProperties(primaryDataSource))
                // 设置实体类所在位置.扫描所有带有 @Entity 注解的类
                .packages("com.tc.spider.model.user")
                // Spring会将EntityManagerFactory注入到Repository之中.有了 EntityManagerFactory之后,
                // Repository就能用它来创建 EntityManager 了,然后 EntityManager 就可以针对数据库执行操作
                .persistenceUnit("primaryPersistenceUnit")
                .build();
    }

    @Autowired
    private JpaProperties jpaProperties;

    private Map getVendorProperties(DataSource dataSource) {
        return jpaProperties.getHibernateProperties(dataSource);
    }

    /**
     * 配置事物管理器
     *
     * @param builder
     * @return
     */
    @Bean(name = "transactionManagerPrimary")
    @Primary
    public PlatformTransactionManager transactionManagerPrimary(EntityManagerFactoryBuilder builder) {
        return new JpaTransactionManager(entityManagerFactoryPrimary(builder).getObject());
    }
}

`

SecondaryConfig.java这是第二个数据源配置 `

package com.tc.spider.config.db;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.persistence.EntityManager;
import javax.sql.DataSource;
import java.util.Map;


@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef = "entityManagerFactorySecondary", // 配置连接工厂 entityManagerFactory
        transactionManagerRef = "transactionManagerSecondary", // 配置 事物管理器  transactionManager
        basePackages = {"com.tc.spider.dao.market"}) // 设置Repository所在位置
public class SecondaryConfig {

    @Autowired
    @Qualifier("secondaryDataSource")
    private DataSource secondaryDataSource;

    @Bean(name = "entityManagerSecondary")
    public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
        return entityManagerFactorySecondary(builder).getObject().createEntityManager();
    }

    @Bean(name = "entityManagerFactorySecondary")
    public LocalContainerEntityManagerFactoryBean entityManagerFactorySecondary(EntityManagerFactoryBuilder builder) {
        return builder
                // 设置数据源
                .dataSource(secondaryDataSource)
                // 设置数据源属性
                .properties(getVendorProperties(secondaryDataSource))
                // 设置实体类所在位置.扫描所有带有 @Entity 注解的类
                .packages("com.tc.spider.model.market") //设置实体类所在位置
                // Spring会将EntityManagerFactory注入到Repository之中.有了 EntityManagerFactory之后,
                // Repository就能用它来创建 EntityManager 了,然后 EntityManager 就可以针对数据库执行操作
                .persistenceUnit("secondaryPersistenceUnit")
                .build();
    }

    @Autowired
    private JpaProperties jpaProperties;

    private Map getVendorProperties(DataSource dataSource) {
        return jpaProperties.getHibernateProperties(dataSource);
    }

    /**
     * 配置事物管理器
     *
     * @param builder
     * @return
     */
    @Bean(name = "transactionManagerSecondary")
    public PlatformTransactionManager transactionManagerSecondary(EntityManagerFactoryBuilder builder) {
        return new JpaTransactionManager(entityManagerFactorySecondary(builder).getObject());
    }
}

`