MyBatis 本是 apache 的一个开源项目 iBatis, 2010 年这个项目由 apache software foundation 迁移到了 google code,并且改名为 MyBatis 。
spring boot 的简配置方便的开发,下面通过本文给大家分享 Spring boot 整合 Mybatis 的方法,需要的朋友参考下
最近刚接触 spring boot,正是因为他的及简配置方便开发,促使我下定决心要用它把之前写的项目重构,那么问题来了,spring boot 怎么整合 mybatis 呢,下面几个配置类来搞定。
在我的代码当中是实现了数据库读写分离的,所以代码仅做参考,如有需要可以加我微信:benyzhous
【后续更新】
1、文件结构
DataBaseConfiguration.Java 用来获取数据库连接配置信息,配置从 application.properties 中读取
MybatisConfiguration.java 也就是 MyBatis 配置核心入口,构建连接创建 SqlSessionFactory
2、下面直接贴代码,有问题的话可以留言或者加我的微信公众号:cha-baba,或者个人微信号:benyzhous
application.yml 相关配置
- # Server settings
- server:
- port:8080
- address:localhost
- # DATASOURCE
- jdbc:
- driverClass: com.mysql.jdbc.Driver
- url: jdbc:mysql://127.0.0.1:3306/local-kaishustory?useUnicode=true&characterEncoding=utf-8
- username: root
- password: root
- # SPRING PROFILES
- spring:
- # HTTP ENCODING
- http:
- encoding.charset: UTF-8
- encoding.enable: true
- encoding.force: true
- # WeiXin Configuration
- weixin:
- mp:
- appid: xx
- secret: ee
- token: weixin
- aeskey:
- # MyBatis
- mybatis:
- typeAliasesPackage: com.modou.**.domain
- mapperLocations: classpath:/com/modou/**/mapper/*.xml
- configLocation: classpath:/mybatis-config.xml
- # LOGGING
- logging:
- level:
- com.ibatis:DEBUG
DataBaseConfiguration.java
- package com.modou.conf.mybatis;
- import java.util.ArrayList;
- import java.util.List;
- import javax.sql.DataSource;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
- import org.springframework.boot.bind.RelaxedPropertyResolver;
- import org.springframework.context.EnvironmentAware;
- import org.springframework.context.annotation.Bean;
- import org.springframework.context.annotation.Configuration;
- import org.springframework.context.annotation.Primary;
- import org.springframework.core.env.Environment;
- import org.springframework.transaction.annotation.EnableTransactionManagement;
- import com.alibaba.druid.pool.DruidDataSource;
- @Configuration
- @EnableTransactionManagement
- public class DataBaseConfiguration implements EnvironmentAware {
- private RelaxedPropertyResolver propertyResolver;
- private static Logger log = LoggerFactory.getLogger(DataBaseConfiguration.class);
- @Override
- public void setEnvironment(Environment env) {
- this.propertyResolver = new RelaxedPropertyResolver(env, "jdbc.");
- }
- @Bean(name="writeDataSource", destroyMethod = "close", initMethod="init")
- @Primary
- public DataSource writeDataSource() {
- log.debug("Configruing Write DataSource");
- DruidDataSource datasource = new DruidDataSource();
- datasource.setUrl(propertyResolver.getProperty("url"));
- datasource.setDriverClassName(propertyResolver.getProperty("driverClassName"));
- datasource.setUsername(propertyResolver.getProperty("username"));
- datasource.setPassword(propertyResolver.getProperty("password"));
- return datasource;
- }
- @Bean(name="readOneDataSource", destroyMethod = "close", initMethod="init")
- public DataSource readOneDataSource() {
- log.debug("Configruing Read One DataSource");
- DruidDataSource datasource = new DruidDataSource();
- datasource.setUrl(propertyResolver.getProperty("url"));
- datasource.setDriverClassName(propertyResolver.getProperty("driverClassName"));
- datasource.setUsername(propertyResolver.getProperty("username"));
- datasource.setPassword(propertyResolver.getProperty("password"));
- return datasource;
- }
- @Bean(name="readTowDataSource", destroyMethod = "close", initMethod="init")
- public DataSource readTowDataSource() {
- log.debug("Configruing Read Two DataSource");
- DruidDataSource datasource = new DruidDataSource();
- datasource.setUrl(propertyResolver.getProperty("url"));
- datasource.setDriverClassName(propertyResolver.getProperty("driverClassName"));
- datasource.setUsername(propertyResolver.getProperty("username"));
- datasource.setPassword(propertyResolver.getProperty("password"));
- return datasource;
- }
- @Bean(name="readDataSources")
- public List<DataSource> readDataSources(){
- List<DataSource> dataSources = new ArrayList<DataSource>();
- dataSources.add(readOneDataSource());
- dataSources.add(readTowDataSource());
- return dataSources;
- }
- }
MyBatisConfiguration.java
- package com.modou.conf.mybatis;
- import java.util.List;
- import javax.annotation.Resource;
- import javax.persistence.EntityManager;
- import javax.sql.DataSource;
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
- import org.apache.ibatis.session.SqlSessionFactory;
- import org.mybatis.spring.SqlSessionFactoryBean;
- import org.mybatis.spring.annotation.MapperScan;
- import org.mybatis.spring.plugin.rw.RoundRobinRWRoutingDataSourceProxy;
- import org.springframework.boot.autoconfigure.AutoConfigureAfter;
- import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
- import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
- import org.springframework.boot.bind.RelaxedPropertyResolver;
- import org.springframework.context.EnvironmentAware;
- import org.springframework.context.annotation.Bean;
- import org.springframework.context.annotation.Configuration;
- import org.springframework.core.env.Environment;
- import org.springframework.core.io.DefaultResourceLoader;
- import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
- import org.springframework.jdbc.datasource.DataSourceTransactionManager;
- import org.springframework.transaction.annotation.EnableTransactionManagement;
- /**
- *
- * 获取第二个数据库的连接信息,在application.yml中配置,并指定特定的前缀
- *
- */
- @Configuration
- @ConditionalOnClass({ EnableTransactionManagement.class, EntityManager.class })
- @AutoConfigureAfter({ DataBaseConfiguration.class })
- @MapperScan(basePackages={"com.modou.**.mapper","com.github.abel533.entity.mapper"})
- public class MybatisConfiguration implements EnvironmentAware{
- private static Log logger = LogFactory.getLog(MybatisConfiguration.class);
- private RelaxedPropertyResolver propertyResolver;
- @Resource(name="writeDataSource")
- private DataSource writeDataSource;
- @Resource(name="readDataSources")
- private List<Object> readDataSources;
- @Override
- public void setEnvironment(Environment environment) {
- this.propertyResolver = new RelaxedPropertyResolver(environment,"mybatis.");
- }
- @Bean
- @ConditionalOnMissingBean
- public SqlSessionFactory sqlSessionFactory() {
- try {
- SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
- sessionFactory.setDataSource(roundRobinDataSouceProxy());
- sessionFactory.setTypeAliasesPackage(propertyResolver
- .getProperty("typeAliasesPackage"));
- sessionFactory
- .setMapperLocations(new PathMatchingResourcePatternResolver()
- .getResources(propertyResolver
- .getProperty("mapperLocations")));
- sessionFactory
- .setConfigLocation(new DefaultResourceLoader()
- .getResource(propertyResolver
- .getProperty("configLocation")));
- return sessionFactory.getObject();
- } catch (Exception e) {
- logger.warn("Could not confiure mybatis session factory");
- return null;
- }
- }
- @Bean
- public RoundRobinRWRoutingDataSourceProxy roundRobinDataSouceProxy(){
- RoundRobinRWRoutingDataSourceProxy proxy = new RoundRobinRWRoutingDataSourceProxy();
- proxy.setWriteDataSource(writeDataSource);
- proxy.setReadDataSoures(readDataSources);
- proxy.setReadKey("READ");
- proxy.setWriteKey("WRITE");
- return proxy;
- }
- @Bean
- @ConditionalOnMissingBean
- public DataSourceTransactionManager transactionManager() {
- return new DataSourceTransactionManager(writeDataSource);
- }
- }
Application.java
- package com.modou.weixin;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.boot.CommandLineRunner;
- import org.springframework.boot.SpringApplication;
- import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
- import org.springframework.context.annotation.Bean;
- import org.springframework.context.annotation.ComponentScan;
- import org.springframework.context.annotation.Configuration;
- import com.modou.weixin.service.HelloWorldService;
- /**
- * Created by chababa on 15/8/22.
- */
- @Configuration
- @ComponentScan(basePackages={"com.modou.conf","com.modou.weixin"})
- @EnableAutoConfiguration
- public class Application implements CommandLineRunner{
- @Autowired
- HelloWorldService helloWorldService;
- public static void main(String[] args) {
- SpringApplication.run(Application.class, args);
- }
- @Override
- public void run(String... args) throws Exception {
- System.out.println(this.helloWorldService.print());
- }
- }
3、maven pom.xml 相关依赖 [我是基于我的多模块依赖,这里只是一个示意],其中配置了 jrebel 热部署插件,需要搭配 jrebel6.2.1,具体配置和下载请转向 http://blog.csdn.net/xiaoyu411502/article/details/48047369
- xml version="1.0"?>
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
- xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
- 4.0.0
- com.modou.weixin
- weixin-boot-parent
- 0.0.1-SNAPSHOT
- ../weixin-boot-parent
- weixin-boot-services
- weixin-boot-services
- http://maven.apache.org
- UTF-8
- 1.2.4.RELEASE
- com.modou.weixin
- weixin-boot-sdk
- ${project.version}
- com.modou.weixin
- mybatis-plugin-rw
- ${project.version}
- org.springframework.boot
- spring-boot-starter-web
- org.springframework.boot
- spring-boot-starter-actuator
- org.springframework.boot
- spring-boot-starter-thymeleaf
- org.springframework
- spring-jdbc
- javax.persistence
- persistence-api
- org.mybatis
- mybatis
- org.mybatis
- mybatis-spring
- com.alibaba
- druid
- mysql
- mysql-connector-java
- com.github.pagehelper
- pagehelper
- tk.mybatis
- mapper
- org.mybatis.generator
- mybatis-generator-core
以上所述是小编给大家介绍的 Spring boot 整合 Mybatis 的方法,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对 PHPERZ 网站的支持!
来源: http://www.phperz.com/article/17/1207/356550.html