Springboot多数据源使用示例

1、配置文件

spring.datasource.url=jdbc:mysql://198.168.1.1:3306/user?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&rewriteBatchedStatements=true&tinyInt1isBit=false
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.datasource1.url=jdbc:mysql://198.168.1.2:3306/user?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&rewriteBatchedStatements=true
spring.datasource1.username=root
spring.datasource1.password=123456
spring.datasource1.driver-class-name=com.mysql.jdbc.Driver

2、配置数据源

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 javax.sql.DataSource;

/**
 * 数据源配置
 */
@Configuration
public class DataSourceConfig {

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

    @Bean(name = "secondDataSource")
    @Qualifier("secondDataSource")
    @ConfigurationProperties(prefix = "spring.datasource1")
    public DataSource secondDataSource() {
        return DataSourceBuilder.create().build();
    }
}

import org.springframework.beans.factory.annotation.Qualifier;
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;

/**
 * 数据源配置
 */
@Configuration
public class JdbcTemplateTConfig {

    @Bean(name = "primaryJdbcTemplate")
    @Primary
    public JdbcTemplate primaryJdbcTemplate(
            @Qualifier("primaryDataSource") DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }

    @Bean(name = "secondJdbcTemplate")
    public JdbcTemplate secondaryJdbcTemplate(
            @Qualifier("secondDataSource") DataSource dataSource) {
        return new JdbcTemplate(dataSource);
    }
}

3、使用示例

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 多数据源数据同步
 */
@RestController
@RequestMapping("/vic/bench/jdbcs")
public class JdbcTController {

    public static final Logger logger = LoggerFactory.getLogger(JdbcTController.class);

    @Autowired
    @Qualifier("primaryJdbcTemplate")
    private JdbcTemplate jdbcTemplate1;

    @Autowired
    @Qualifier("secondJdbcTemplate")
    private JdbcTemplate jdbcTemplate2;

    /**
     * 数据同步
     */
    @RequestMapping(value = "/dataSync.do", method = RequestMethod.POST)
    public Map<String, Object> dataSync() {
        // 源一
        String sql = "SELECT id, ID_HL, USER_ID, USER_NAME FROM uic_user WHERE id = ? ";
        ArrayList<Object> param = new ArrayList<>();
        param.add(1);
        List<Map<String, Object>> list1 = jdbcTemplate1.queryForList(sql, param.toArray());
        // 源二
        String sql2 = "SELECT id, ID_HL, USER_ID, USER_NAME FROM uic_user WHERE id = ? ";
        ArrayList<Object> param2 = new ArrayList<>();
        param2.add(1);
        List<Map<String, Object>> list2 = jdbcTemplate2.queryForList(sql2, param2.toArray());

        Map<String, Object> map = new HashMap<>();
        map.put("list1", list1);
        map.put("list2", list2);
        return map;
    }
}