Springboot2 jpa druid多数据源

package com.ruoyi;

import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.client.RestTemplate;

/**
 * 启动程序
 *
 * @author ruoyi
 */
@SpringBootApplication
@EnableTransactionManagement
@MapperScan("com.ruoyi.project.**.mapper")
public class RuoYiApplication
{
    @Autowired
    private RestTemplateBuilder restTemplateBuilder;

    @Bean
    public RestTemplate restTemplate(){
        return restTemplateBuilder.build();
    }

    public static void main(String[] args) {
        // System.setProperty("spring.devtools.restart.enabled", "false");
        SpringApplication.run(RuoYiApplication.class, args);
    }
}

package com.ruoyi.framework.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;

import javax.sql.DataSource;
import java.sql.SQLException;

/**
 * Druid数据库信息配置加载
 *
 * @author DurantSimpson
 */
@Configuration
public class DruidConfig
{
    private static final Logger log = LoggerFactory.getLogger(DruidConfig.class);

    @Value("${spring.datasource.url}")
    private String dbUrl;

    @Value("${spring.datasource.username}")
    private String username;

    @Value("${spring.datasource.password}")
    private String password;

    @Value("${spring.datasource.url2}")
    private String dbUrl2;

    @Value("${spring.datasource.username2}")
    private String username2;

    @Value("${spring.datasource.password2}")
    private String password2;

    @Value("${spring.datasource.driverClassName}")
    private String driverClassName;

    @Value("${spring.datasource.initialSize}")
    private int initialSize;

    @Value("${spring.datasource.minIdle}")
    private int minIdle;

    @Value("${spring.datasource.maxActive}")
    private int maxActive;

    @Value("${spring.datasource.maxWait}")
    private int maxWait;

    @Value("${spring.datasource.timeBetweenEvictionRunsMillis}")
    private int timeBetweenEvictionRunsMillis;

    @Value("${spring.datasource.minEvictableIdleTimeMillis}")
    private int minEvictableIdleTimeMillis;

    @Value("${spring.datasource.validationQuery}")
    private String validationQuery;

    @Value("${spring.datasource.testWhileIdle}")
    private boolean testWhileIdle;

    @Value("${spring.datasource.testOnBorrow}")
    private boolean testOnBorrow;

    @Value("${spring.datasource.testOnReturn}")
    private boolean testOnReturn;

    @Value("${spring.datasource.poolPreparedStatements}")
    private boolean poolPreparedStatements;

    @Value("${spring.datasource.maxPoolPreparedStatementPerConnectionSize}")
    private int maxPoolPreparedStatementPerConnectionSize;

    @Value("${spring.datasource.filters}")
    private String filters;

    @Value("{spring.datasource.connectionProperties}")
    private String connectionProperties;

    @Bean(initMethod = "init", destroyMethod = "close") /** 声明其为Bean实例 */
    @Primary /** 在同样的DataSource中，首先使用被标注的DataSource */
    public DataSource dataSource()
    {
        DruidDataSource datasource = new DruidDataSource();

        datasource.setUrl(this.dbUrl);
        datasource.setUsername(username);
        datasource.setPassword(password);
        datasource.setDriverClassName(driverClassName);

        /** configuration */
        datasource.setInitialSize(initialSize);
        datasource.setMinIdle(minIdle);
        datasource.setMaxActive(maxActive);
        datasource.setMaxWait(maxWait);
        datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        datasource.setValidationQuery(validationQuery);
        datasource.setTestWhileIdle(testWhileIdle);
        datasource.setTestOnBorrow(testOnBorrow);
        datasource.setTestOnReturn(testOnReturn);
        datasource.setPoolPreparedStatements(poolPreparedStatements);
        datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
        try
        {
            datasource.setFilters(filters);
        }
        catch (SQLException e)
        {
            log.error("druid configuration initialization filter", e);
        }
        datasource.setConnectionProperties(connectionProperties);

        return datasource;
    }

    @Bean(initMethod = "init", destroyMethod = "close")
    public DataSource dataSource2()
    {
        DruidDataSource datasource = new DruidDataSource();

        datasource.setUrl(this.dbUrl2);
        datasource.setUsername(username2);
        datasource.setPassword(password2);
        datasource.setDriverClassName(driverClassName);

        /** configuration */
        datasource.setInitialSize(initialSize);
        datasource.setMinIdle(minIdle);
        datasource.setMaxActive(maxActive);
        datasource.setMaxWait(maxWait);
        datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
        datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
        datasource.setValidationQuery(validationQuery);
        datasource.setTestWhileIdle(testWhileIdle);
        datasource.setTestOnBorrow(testOnBorrow);
        datasource.setTestOnReturn(testOnReturn);
        datasource.setPoolPreparedStatements(poolPreparedStatements);
        datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);
        try
        {
            datasource.setFilters(filters);
        }
        catch (SQLException e)
        {
            log.error("druid configuration initialization filter", e);
        }
        datasource.setConnectionProperties(connectionProperties);

        return datasource;
    }

    @Bean(name = "default")
    @Primary
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(EntityManagerFactoryBuilder builder) {
        return builder.dataSource(dataSource()).persistenceUnit("default").build();
    }

    @Bean(name = "default2")
    public LocalContainerEntityManagerFactoryBean default2(EntityManagerFactoryBuilder builder) {
        return builder.dataSource(dataSource2()).persistenceUnit("default2").build();
    }

    /**
     * 注册一个StatViewServlet 相当于在web.xml中声明了一个servlet
     */
    @SuppressWarnings({ "rawtypes", "unchecked" })
    @Bean
    public ServletRegistrationBean druidServlet()
    {
        ServletRegistrationBean reg = new ServletRegistrationBean();
        reg.setServlet(new StatViewServlet());
        reg.addUrlMappings("/monitor/druid/*");
        /** 白名单 */
        // reg.addInitParameter("allow", "10.211.61.45,127.0.0.1,123.207.20.136");
        /** IP黑名单(共同存在时，deny优先于allow) */
        // reg.addInitParameter("deny", "10.211.61.4");
        /** 是否能够重置数据 禁用HTML页面上的“Reset All”功能 */
        reg.addInitParameter("resetEnable", "false");
        return reg;
    }

    /**
     * 注册一个：filterRegistrationBean 相当于在web.xml中声明了一个Filter
     */
    @SuppressWarnings({ "rawtypes", "unchecked" })
    @Bean
    public FilterRegistrationBean filterRegistrationBean()
    {
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
        filterRegistrationBean.setFilter(new WebStatFilter());
        /** 添加过滤规则. */
        filterRegistrationBean.addUrlPatterns("/*");
        /** 监控选项滤器 */
        filterRegistrationBean.addInitParameter("DruidWebStatFilter", "/*");
        /** 添加不需要忽略的格式信息. */
        filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/monitor/druid/*");
        /** 配置profileEnable能够监控单个url调用的sql列表 */
        filterRegistrationBean.addInitParameter("profileEnable", "true");
        /** 当前的cookie的用户 */
        filterRegistrationBean.addInitParameter("principalCookieName", "USER_COOKIE");
        /** 当前的session的用户 */
        filterRegistrationBean.addInitParameter("principalSessionName", "USER_SESSION");
        return filterRegistrationBean;
    }
}

<persistence xmlns="http://java.sun.com/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
             version="1.0">
    <persistence-unit name="default" transaction-type="RESOURCE_LOCAL"></persistence-unit>
    <persistence-unit name="default2" transaction-type="RESOURCE_LOCAL"></persistence-unit>
</persistence>

#dubbo配置
spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    driverClassName: com.mysql.jdbc.Driver
    url: jdbc:mysql://192.168.80.174:3306/aa?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true
    username: test
    password: test
    url2: jdbc:mysql://192.168.80.175:3306/aa?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true
    username2: test
    password2: test
    # 初始化大小，最小，最大
    initialSize: 1
    minIdle: 3
    maxActive: 20
    # 配置获取连接等待超时的时间
    maxWait: 60000
    # 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
    timeBetweenEvictionRunsMillis: 60000
    # 配置一个连接在池中最小生存的时间，单位是毫秒
    minEvictableIdleTimeMillis: 30000
    validationQuery: select 'x'
    testWhileIdle: true
    testOnBorrow: true
    testOnReturn: false
    # 打开PSCache，并且指定每个连接上PSCache的大小
    poolPreparedStatements: true
    maxPoolPreparedStatementPerConnectionSize: 20
    # 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
    filters: stat,wall,slf4j
    # 通过connectProperties属性来打开mergeSql功能；慢SQL记录
    connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
    # 合并多个DruidDataSource的监控数据
    #useGlobalDataSourceStat: true