spring boot +mybatis+druid 多数据源配置

因为我的工程需要在两个数据库中操作数据，所以要配置两个数据库，我这里没有数据源没有什么主从之分，只是配合多数据源必须要指定一个主数据源，所以我就把

操作相对要对的那个数据库设置为主数据（dataBase1 库）源

数据源配置

###################本地应用配置#################

spring:

  application:

    name: test

  datasource:

    url:

      dataBase1: jdbc:mysql://192.168.666666.66:3306/dataBase1

      dataBase2: jdbc:mysql://192.168.66666.67:3306/dataBase2?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true

    username:

      dataBase1: dataBase1

      dataBase2: dataBase2

    password:

      dataBase1: dataBase1

      dataBase2: dataBase2

    driver: com.mysql.jdbc.Driver

    type: com.alibaba.druid.pool.DruidDataSource

    initialSize: 5

    minIdle: 5

    maxActive: 20

    maxWait: 10000

    timeBetweenEvictionRunsMillis: 60000

    minEvictableIdleTimeMillis: 300000

    validationQuery: SELECT 1 FROM DUAL

    testWhileIdle: true

    testOnBorrow: true

    testOnReturn: false

    poolPreparedStatements: true

    maxOpenPreparedStatementConnectionSize: 20

    filters: stat,wall,log4j

    connectionProperties: druid.stat.mergeSql:true;druid.stat.slowSqlMillis:5000

数据源抽象类（因为数据库的配置属性太多了，所以把通用的数据放到这个抽象类中，默认的配置也是主数据源）

package so.dian.device.common.config;

import java.sql.SQLException;

import javax.sql.DataSource;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

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

import org.springframework.boot.web.servlet.FilterRegistrationBean;

import org.springframework.boot.web.servlet.ServletRegistrationBean;

import org.springframework.context.annotation.Configuration;

import com.alibaba.druid.pool.DruidDataSource;

import com.alibaba.druid.support.http.StatViewServlet;

import com.alibaba.druid.support.http.WebStatFilter;

@Configuration

public abstract class AbstractDBConfig {

	private static Logger log = LoggerFactory.getLogger(AbstractDBConfig.class);

	private String driver;

	private String url;

	private String username;

	private String password;

	private int maxActive;

	private int maxWait;

	private int initialSize;

	private int minEvictableIdleTimeMillis;

	private int minIdle;

	private String validationQuery;

	private boolean testWhileIdle;

	private boolean testOnBorrow;

	private boolean testOnReturn;

	private String connectionProperties;

	private String filters;

	private long timeBetweenEvictionRunsMillis;

	private boolean poolPreparedStatements;

	private int maxOpenPreparedStatementConnectionSize;

	private String mapperLocations;

	@Value("${maxOpenPreparedStatementConnectionSize}")

	public int getMaxOpenPreparedStatementConnectionSize() {

		return maxOpenPreparedStatementConnectionSize;

	}

	public void setMaxOpenPreparedStatementConnectionSize(int maxOpenPreparedStatementConnectionSize) {

		this.maxOpenPreparedStatementConnectionSize = maxOpenPreparedStatementConnectionSize;

	}

	public String getMapperLocations() {

		return mapperLocations;

	}

	@Value("${mybatis.configuration.mapper-locations.dataBase1}")

	public void setMapperLocations(String mapperLocations) {

		this.mapperLocations = mapperLocations;

	}

	public String getFilters() {

		return filters;

	}

	public String getDriver() {

		return driver;

	}

	@Value("${spring.datasource.driver}")

	public void setDriver(String driver) {

		this.driver = driver;

	}

	public String getUrl() {

		return url;

	}

	@Value("${spring.datasource.url.dataBase1}")

	public void setUrl(String url) {

		this.url = url;

	}

	public String getUsername() {

		return username;

	}

	@Value("${spring.datasource.username.dataBase1}")

	public void setUsername(String username) {

		this.username = username;

	}

	public String getPassword() {

		return password;

	}

	@Value("${spring.datasource.password.dataBase1}")

	public void setPassword(String password) {

		this.password = password;

	}

	public int getMaxActive() {

		return maxActive;

	}

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

	public void setMaxActive(int maxActive) {

		this.maxActive = maxActive;

	}

	public int getMaxWait() {

		return maxWait;

	}

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

	public void setMaxWait(int maxWait) {

		this.maxWait = maxWait;

	}

	public int getInitialSize() {

		return initialSize;

	}

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

	public void setInitialSize(int initialSize) {

		this.initialSize = initialSize;

	}

	public int getMinEvictableIdleTimeMillis() {

		return minEvictableIdleTimeMillis;

	}

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

	public void setMinEvictableIdleTimeMillis(int minEvictableIdleTimeMillis) {

		this.minEvictableIdleTimeMillis = minEvictableIdleTimeMillis;

	}

	public int getMinIdle() {

		return minIdle;

	}

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

	public void setMinIdle(int minIdle) {

		this.minIdle = minIdle;

	}

	public String getValidationQuery() {

		return validationQuery;

	}

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

	public void setValidationQuery(String validationQuery) {

		this.validationQuery = validationQuery;

	}

	public boolean isTestWhileIdle() {

		return testWhileIdle;

	}

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

	public void setTestWhileIdle(boolean testWhileIdle) {

		this.testWhileIdle = testWhileIdle;

	}

	public boolean isTestOnBorrow() {

		return testOnBorrow;

	}

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

	public void setTestOnBorrow(boolean testOnBorrow) {

		this.testOnBorrow = testOnBorrow;

	}

	public boolean isTestOnReturn() {

		return testOnReturn;

	}

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

	public void setTestOnReturn(boolean testOnReturn) {

		this.testOnReturn = testOnReturn;

	}

	public String getConnectionProperties() {

		return connectionProperties;

	}

	@Value("${spring.datasource.connectionProperties}")

	public void setConnectionProperties(String connectionProperties) {

		this.connectionProperties = connectionProperties;

	}

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

	public void setFilters(String filters) {

		this.filters = filters;

	}

	public long getTimeBetweenEvictionRunsMillis() {

		return timeBetweenEvictionRunsMillis;

	}

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

	public void setTimeBetweenEvictionRunsMillis(long timeBetweenEvictionRunsMillis) {

		this.timeBetweenEvictionRunsMillis = timeBetweenEvictionRunsMillis;

	}

	public boolean isPoolPreparedStatements() {

		return poolPreparedStatements;

	}

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

	public void setPoolPreparedStatements(boolean poolPreparedStatements) {

		this.poolPreparedStatements = poolPreparedStatements;

	}

	public int getmaxOpenPreparedStatementConnectionSize() {

		return maxOpenPreparedStatementConnectionSize;

	}

	@Value("${spring.datasource.maxOpenPreparedStatementConnectionSize}")

	public void setmaxOpenPreparedStatementConnectionSize(int maxOpenPreparedStatementConnectionSize) {

		this.maxOpenPreparedStatementConnectionSize = maxOpenPreparedStatementConnectionSize;

	}

	/**
     * AbstractDBConfig.java
     * @Description:自定义数据源
     * @return
     * @throws Exception
     * @date 2018年1月22日 下午5:26:25 
     * @author ningque
     *
     */
    public abstract DataSource dataSource()throws Exception;
    /**
     * 
     * AbstractDBConfig.java
     * @Description:自定义事物
     * @return
     * @throws Exception
     * @date 2018年1月22日 下午5:26:38 
     * @author ningque
     *
     */
    public abstract DataSourceTransactionManager transactionManager()throws Exception;
    /**
     * 
     * AbstractDBConfig.java
     * @Description:自定义session
     * @param dataSource
     * @return
     * @throws Exception
     * @date 2018年1月22日 下午5:27:41 
     * @author ningque
     *
     */
    public abstract SqlSessionFactory sqlSessionFactory( DataSource dataSource)throws Exception;
    /**
     * 
     * AbstractDBConfig.java
     * @Description:配置druid 监控
     * @return
     * @date 2018年1月22日 下午5:28:01 
     * @author ningque
     *
     */
    public abstract ServletRegistrationBean druidServlet();
    public abstract FilterRegistrationBean filterRegistrationBean();

}

主数据源类

package so.dian.device.common.config;

import java.sql.SQLException;

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;

import org.mybatis.spring.SqlSessionFactoryBean;

import org.mybatis.spring.annotation.MapperScan;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

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

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

import org.springframework.boot.context.properties.ConfigurationProperties;

import org.springframework.boot.web.servlet.FilterRegistrationBean;

import org.springframework.boot.web.servlet.ServletRegistrationBean;

import org.springframework.cloud.context.config.annotation.RefreshScope;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.context.annotation.Primary;

import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import com.alibaba.druid.pool.DruidDataSource;

import com.alibaba.druid.support.http.StatViewServlet;

import com.alibaba.druid.support.http.WebStatFilter;

@Configuration

@ConfigurationProperties(prefix = "spring.datasource")

@MapperScan(basePackages="so.dian.device.dao.dataBase1",sqlSessionFactoryRef = "dataBase1SqlSessionFactory")

public class dataBase1DruidDBConfig extends AbstractDBConfig {

	private static Logger log = LoggerFactory.getLogger(dataBase1DruidDBConfig.class);

	private String url;

	private String mapperLocations;

	public String userName;

	public String passWord;

	private String typeAliasesPackage;

	public String getTypeAliasesPackage() {

		return typeAliasesPackage;

	}

	@Value("${mybatis.type-aliases-package.dataBase1}")

	public void setTypeAliasesPackage(String typeAliasesPackage) {

		this.typeAliasesPackage = typeAliasesPackage;

	}

	public String getUserName() {

		return userName;

	}

	@Value("${spring.datasource.username.dataBase1}")

	public void setUserName(String userName) {

		this.userName = userName;

	}

	public String getPassWord() {

		return passWord;

	}

	@Value("${spring.datasource.password.dataBase1}")

	public void setPassWord(String passWord) {

		this.passWord = passWord;

	}

	public String getUrl() {

		return url;

	}

	@Value("${spring.datasource.url.dataBase1}")

	public void setUrl(String url) {

		this.url = url;

	}

	public String getMapperLocations() {

		return mapperLocations;

	}

	@Value("${mybatis.mapper-locations.dataBase1}")

	public void setMapperLocations(String mapperLocations) {

		this.mapperLocations = mapperLocations;

	}

	@Bean(name = "dataBase1DataSource")

	@Primary

	public DataSource dataSource() throws SQLException {

		log.info("---------------开始初始化 dataBase1DataSource！！");

		DruidDataSource druidDataSource = new DruidDataSource();

		log.info("driver -->:" + getDriver() + ", url -->:" + url);

		druidDataSource.setDriverClassName(getDriver());

		druidDataSource.setUrl(getUrl());

		druidDataSource.setUsername(getUsername());

		druidDataSource.setPassword(getPassword());

		druidDataSource.setMaxActive(getMaxActive());

		druidDataSource.setInitialSize(getInitialSize());

		druidDataSource.setMinIdle(getMinIdle());

		druidDataSource.setMaxWait(getMaxWait());

		druidDataSource.setMinEvictableIdleTimeMillis(getMinEvictableIdleTimeMillis());

		druidDataSource.setValidationQuery(getValidationQuery());

		druidDataSource.setTestWhileIdle(isTestWhileIdle());

		druidDataSource.setTestOnBorrow(isTestOnBorrow());

		druidDataSource.setTestOnReturn(isTestOnReturn());

		druidDataSource.setConnectionProperties(getConnectionProperties());

		druidDataSource.setFilters(getFilters());

		druidDataSource.setTimeBetweenEvictionRunsMillis(getTimeBetweenEvictionRunsMillis());

		druidDataSource.setPoolPreparedStatements(isPoolPreparedStatements());

		druidDataSource.setMaxOpenPreparedStatements(getMaxOpenPreparedStatementConnectionSize());

		return druidDataSource;

	}

	@Bean(name = "dataBase1TransactionManager")

	@Primary

	public DataSourceTransactionManager transactionManager()throws Exception {

		return new DataSourceTransactionManager(dataBase1PrimaryDataSource());

	}

	@Bean(name = "dataBase1SqlSessionFactory")

	@Primary

	public SqlSessionFactory sqlSessionFactory(@Qualifier("dataBase1DataSource") DataSource dataBase1DataSource)

			throws Exception {

		final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();

		sessionFactory.setDataSource(dataBase1DataSource);

		sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().getResources(getMapperLocations()));

		sessionFactory.setTypeAliasesPackage(typeAliasesPackage);

		return sessionFactory.getObject();

	}

	@Bean

	@RefreshScope

	public ServletRegistrationBean druidServlet() {

		log.info("---------------开始初始化 ServletRegistrationBean！！");

		ServletRegistrationBean reg = new ServletRegistrationBean();

		reg.setServlet(new StatViewServlet());

		reg.addUrlMappings("/druid/*");

		reg.addInitParameter("loginUsername", "hello");

		reg.addInitParameter("loginPassword", "hello123");

		return reg;

	}

	@Bean

	@RefreshScope

	public FilterRegistrationBean filterRegistrationBean() {

		log.info("---------------开始初始化 FilterRegistrationBean！！");

		FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();

		filterRegistrationBean.setFilter(new WebStatFilter());

		filterRegistrationBean.addUrlPatterns("/*");

		filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");

		filterRegistrationBean.addInitParameter("profileEnable", "true");

		filterRegistrationBean.addInitParameter("principalCookieName", "USER_COOKIE");

		filterRegistrationBean.addInitParameter("principalSessionName", "USER_SESSION");

		return filterRegistrationBean;

	}

}

从数据源配置

package so.dian.device.common.config;

import java.sql.SQLException;

import javax.sql.DataSource;

import org.apache.ibatis.session.SqlSessionFactory;

import org.mybatis.spring.SqlSessionFactoryBean;

import org.mybatis.spring.annotation.MapperScan;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

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

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

import org.springframework.boot.context.properties.ConfigurationProperties;

import org.springframework.boot.web.servlet.FilterRegistrationBean;

import org.springframework.boot.web.servlet.ServletRegistrationBean;

import org.springframework.dataBase2.context.config.annotation.RefreshScope;

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import com.alibaba.druid.pool.DruidDataSource;

import com.alibaba.druid.support.http.StatViewServlet;

import com.alibaba.druid.support.http.WebStatFilter;

@Configuration

@ConfigurationProperties(prefix = "spring.datasource")

@MapperScan(basePackages="so.dian.device.dao.dataBase2",sqlSessionFactoryRef = "dataBase2SqlSessionFactory")

public classdataBase2DruidDBConfig extends AbstractDBConfig {

	private static Logger log = LoggerFactory.getLogger(dataBase2DruidDBConfig.class);

	private String url;

	public String userName;

	public String passWord;

	private String mapperLocations;

	private String typeAliasesPackage;

	public String getTypeAliasesPackage() {

		return typeAliasesPackage;

	}

	@Value("${mybatis.type-aliases-package.dataBase2}")

	public void setTypeAliasesPackage(String typeAliasesPackage) {

		this.typeAliasesPackage = typeAliasesPackage;

	}

	public String getUserName() {

		return userName;

	}

	@Value("${spring.datasource.username.dataBase2}")

	public void setUserName(String userName) {

		this.userName = userName;

	}

	public String getPassWord() {

		return passWord;

	}

	@Value("${spring.datasource.password.dataBase2}")

	public void setPassWord(String passWord) {

		this.passWord = passWord;

	}

	public String getUrl() {

		return url;

	}

	@Value("${spring.datasource.url.dataBase2}")

	public void setUrl(String url) {

		this.url = url;

	}

	public String getMapperLocations() {

		return mapperLocations;

	}

	@Value("${mybatis.mapper-locations.dataBase2}")

	public void setMapperLocations(String mapperLocations) {

		this.mapperLocations = mapperLocations;

	}

	@Bean(name = "dataBase2DataSource")

	public DataSourcedataBase2 dataSource() throws SQLException {

		log.info("---------------开始初始化dataBase2DataSource！！");

		DruidDataSource druidDataSource = new DruidDataSource();

		log.info("driver -->:" + getDriver() + ", url -->:" + url);

		druidDataSource.setDriverClassName(getDriver());

		druidDataSource.setUrl(url);

		druidDataSource.setUsername(userName);

		druidDataSource.setPassword(passWord);

		druidDataSource.setMaxActive(getMaxActive());

		druidDataSource.setInitialSize(getInitialSize());

		druidDataSource.setMinIdle(getMinIdle());

		druidDataSource.setMaxWait(getMaxWait());

		druidDataSource.setMinEvictableIdleTimeMillis(getMinEvictableIdleTimeMillis());

		druidDataSource.setValidationQuery(getValidationQuery());

		druidDataSource.setTestWhileIdle(isTestWhileIdle());

		druidDataSource.setTestOnBorrow(isTestOnBorrow());

		druidDataSource.setTestOnReturn(isTestOnReturn());

		druidDataSource.setConnectionProperties(getConnectionProperties());

		druidDataSource.setFilters(getFilters());

		druidDataSource.setTimeBetweenEvictionRunsMillis(getTimeBetweenEvictionRunsMillis());

		druidDataSource.setPoolPreparedStatements(isPoolPreparedStatements());

		druidDataSource.setMaxOpenPreparedStatements(getMaxOpenPreparedStatementConnectionSize());

		return druidDataSource;

	}

	@Bean(name = "dataBase2TransactionManager")

	public DataSourceTransactionManager transactionManager()throws Exception {

		return new DataSourceTransactionManager(dataBase2DataSource());

	}

	@Bean(name = "dataBase2SqlSessionFactory")

	public SqlSessionFactory sqlSessionFactory(@Qualifier("dataBase2DataSource") DataSource dataBase2DataSource)

			throws Exception {

		final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();

		sessionFactory.setDataSource(dataBase2DataSource);

 		sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver().getResources(mapperLocations));

		sessionFactory.setTypeAliasesPackage(getTypeAliasesPackage());

		return sessionFactory.getObject();

	}

	@Bean

	@RefreshScope

	public ServletRegistrationBean druidServlet() {

		log.info("---------------开始初始化 ServletRegistrationBean！！");

		ServletRegistrationBean reg = new ServletRegistrationBean();

		reg.setServlet(new StatViewServlet());

		reg.addUrlMappings("/druid/*");

		reg.addInitParameter("loginUsername", "fac");

		reg.addInitParameter("loginPassword", "r5bk2fey");

		return reg;

	}

	@Bean

	@RefreshScope

	public FilterRegistrationBean filterRegistrationBean() {

		log.info("---------------开始初始化 FilterRegistrationBean！！");

		FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();

		filterRegistrationBean.setFilter(new WebStatFilter());

		filterRegistrationBean.addUrlPatterns("/*");

		filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");

		filterRegistrationBean.addInitParameter("profileEnable", "true");

		filterRegistrationBean.addInitParameter("principalCookieName", "USER_COOKIE");

		filterRegistrationBean.addInitParameter("principalSessionName", "USER_SESSION");

		return filterRegistrationBean;

	}

}

ok 启动工程

[INFO] - ---------------开始初始化 dataBase1DataSource！！

2018-01-22 16:48:34.830 [main] [config.DataBase1DruidDBConfig.dataBase1PrimaryDataSource] [INFO] - driver -->:com.mysql.jdbc.Driver, url -->:jdbc:mysql://192.168.166.66:3306/dataBase1

2018-01-22 16:48:36.462 [main] [org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$3.doWith] [WARN] - Autowired annotation should only be used on methods with parameters: public int config.AbstractDBConfig.getMaxOpenPreparedStatementConnectionSize()

2018-01-22 16:48:36.541 [main] [config.DataBase1DruidDBConfig.dataBase1DataSource] [INFO] - ---------------开始初始化 dataBase2DataSource！！

2018-01-22 16:48:36.542 [main] [config.DataBase2DruidDBConfig.dataBase2DataSource] [INFO] - driver -->:com.mysql.jdbc.Driver, url -->:jdbc:mysql://192.168.166.67:3306/dataBase2?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true

2018-01-22 16:48:37.706 [main] [com.netflix.config.sources.URLConfigurationSource.<init>] [WARN] - No URLs will be polled as dynamic configuration sources.

2018-01-22 16:48:37.706 [main] [com.netflix.config.sources.URLConfigurationSource.<init>] [INFO] - To enable URLs as dynamic configuration sources, define Sy

druid 页面

* 用户名	dataBase1	指定建立连接时使用的用户名
* 连接地址	jdbc:mysql://jdbc:mysql://192.168.166.66:3306/dataBase1	jdbc连接字符串
* 数据库类型	mysql	数据库类型
* 驱动类名	com.mysql.jdbc.Driver	jdbc驱动的类名
* filter类名	com.alibaba.druid.filter.stat.StatFilter,com.alibaba.druid.wall.WallFilter,com.alibaba.druid.filter.logging.Log4jFilter

* 用户名	dataBase2	指定建立连接时使用的用户名
* 连接地址	jdbc:mysql://192.168.166.67:3306/dataBase2?useUnicode=true&characterEncoding=utf-8&allowMultiQueries=true	jdbc连接字符串
* 数据库类型	mysql	数据库类型
* 驱动类名	com.mysql.jdbc.Driver	jdbc驱动的类名
* filter类名	com.alibaba.druid.filter.stat.StatFilter,com.alibaba.druid.wall.WallFilter,com.alibaba.druid.filter.logging.Log4jFilter

spring boot +mybatis+druid 多数据源配置的更多相关文章

spring boot + mybatis + druid配置实践
最近开始搭建spring boot工程,将自身实践分享出来,本文将讲述spring boot + mybatis + druid的配置方案. pom.xml需要引入mybatis 启动依赖: < ...
Spring Boot 2.x 多数据源配置之 MyBatis 篇
场景假设:现有电商业务,商品和库存分别放在不同的库配置数据库连接 app: datasource: first: driver-class-name: com.mysql.cj.jdbc.Drive ...
Spring Boot + MyBatis + Druid + Redis + Thymeleaf 整合小结
Spring Boot + MyBatis + Druid + Redis + Thymeleaf 整合小结这两天闲着没事想利用**Spring Boot**加上阿里的开源数据连接池**Druid* ...
13、Spring Boot 2.x 多数据源配置
1.13 Spring Boot 2.x 多数据源配置完整源码: Spring-Boot-Demos
Spring Boot + Mybatis + Druid 动态切换多数据源
在大型应用程序中,配置主从数据库并使用读写分离是常见的设计模式. 在Spring应用程序中,要实现读写分离,最好不要对现有代码进行改动,而是在底层透明地支持. 这样,就需要我们再一个项目中,配置两个, ...
spring boot + mybatis + druid
因为在用到spring boot + mybatis的项目时候,经常发生访问接口卡,服务器项目用了几天就很卡的甚至不能访问的情况,而我们的项目和数据库都是好了,考虑到可能时数据库连接的问题,所以我打算 ...
（15）Spring Boot使用Druid和监控配置【从零开始学Spring Boot】
Spring Boot 系列博客] 更多查看博客:http://412887952-qq-com.iteye.com/blog Spring Boot默认的数据源是:org.apache.tomcat ...
Spring Boot + Mybatis 实现动态数据源
动态数据源在很多具体应用场景的时候,我们需要用到动态数据源的情况,比如多租户的场景,系统登录时需要根据用户信息切换到用户对应的数据库.又比如业务A要访问A数据库,业务B要访问B数据库等,都可以使用动 ...
Mybatis+Druid多数据源配置
在日常开发中我们可能会用到多数据源开发,什么是多数据源? 简单来讲的话,就是一个项目连接多个数据库.当然只是可能会用到,我暂时没见过应用场景,但是还是了解学习一下此项目可以基于上一个简单集成项目进行 ...

随机推荐

easyui 后台系统引入富文本编辑器的使用
1.首先,想在项目中引入相关的jar包 2.html页面中加入相关的引用  <script type="text/javascript ...
daemon函数的原理及使用详解
在linux系统下创建守护进程的原理及步骤在文章(链接如下)中介绍过.http://blog168.chinaunix.net/space.php?uid=20196318&do=blog&a ...
C#动态调用webservice方法
摘自: http://www.hao5191.cn/a/chengxukaifa/c_/20130109/115819.html using System; using System.Collect ...
页面优化——js异步载入
同步载入在介绍js异步载入之前.我们先来看看什么是js同步载入.我们平时最常使用的就是这样的同步载入形式: <script src="http://XXX.com/script.js ...
Cannot call sendError() after the response has been committed（filter问题）
就是因为执行了filter的dofilter方法中 chain.doFilter(request,response)了执行了两遍 if(){}else{chain.doFilter(request, ...
倍福TwinCAT(贝福Beckhoff)常见问题(FAQ)-如何在初始化的时候写入参数
最常见的是定义一个全局变量,然后跟对应的变量绑定,比如我定义了一个SINT型的变量ControlWord 数值是8,定义好之后编译一下,可以发现PLC程序中或多出来这个变量(MAIN.ControlW ...
android wifi调试(无线调试) 一步到位
没有数据线时候,怎么进行调试开发?只要在一个局域网内,最好选择wifi调试! 网上有很多这样的教程,但是有很多步.很繁琐.最近我在gp上下载了一个软件可以实现点击一步就可以了.不需要在手机上输入任何命 ...
多媒体封装格式详解---MP4
MP4文件格式详解——结构概述 http://blog.csdn.net/pirateleo/article/details/7061452 一.基本概念 1. 文件,由许多Box和FullBox组成 ...
LoadRunner录制: 选择协议
LR录制的时候关心的是通信,关心的是客户端和服务器之间的数据包.它通过监控客户端和服务器之间的通信,转化为自己的函数. 协议选择错误,可能会导致录制下来的内容为空. 方法一:根据经验来选择协议 Web ...
LoadRunner字符串处理 - 补齐字符串
有些时候需要在某个字符串的前面用0补齐,以便满足长度的格式要求. 在LoadRunner中可以封装出一个函数来处理这种问题: /* Function to pad a string to x char ...

spring boot +mybatis+druid 多数据源配置

spring boot +mybatis+druid 多数据源配置的更多相关文章

随机推荐

热门专题