1.创建一个maven项目,导入相关配置:
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.royal</groupId> <artifactId>springBoot</artifactId> <version>1.0-SNAPSHOT</version> <name>springBoot</name> <!--父依赖--> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.9.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- 引入freeMarker的依赖包. --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> </dependency> <!-- mybaties --> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.1.1</version> </dependency> <!-- 数据库驱动 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!--?jta管理多个数据源事务--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jta-atomikos</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> </properties> <build> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> </resources> </build> </project>
pom.xml
2.配置数据连接配置
1)创建两个数据库(test1和test2),然后创建测试的表
use test1; CREATE table user( id int PRIMARY KEY AUTO_INCREMENT, username VARCHAR(50), password VARCHAR(50), email VARCHAR(50), birthday TIMESTAMP ); use test2; CREATE table customer( id int PRIMARY KEY AUTO_INCREMENT, name VARCHAR(50), tel VARCHAR(50) );
sql
2)在application.properties文件里面添加数据库连接参数
#数据库配置 # Mysql 1 mysql.datasource.test1.url = jdbc:mysql://localhost:3306/test1?useUnicode=true&characterEncoding=utf-8 mysql.datasource.test1.username = root mysql.datasource.test1.password = 123456 mysql.datasource.test1.minPoolSize = 3 mysql.datasource.test1.maxPoolSize = 25 mysql.datasource.test1.maxLifetime = 20000 mysql.datasource.test1.borrowConnectionTimeout = 30 mysql.datasource.test1.loginTimeout = 30 mysql.datasource.test1.maintenanceInterval = 60 mysql.datasource.test1.maxIdleTime = 60 mysql.datasource.test1.testQuery = select 1 # Mysql 2 mysql.datasource.test2.url =jdbc:mysql://localhost:3306/test2?useUnicode=true&characterEncoding=utf-8 mysql.datasource.test2.username =root mysql.datasource.test2.password =123456 mysql.datasource.test2.minPoolSize = 3 mysql.datasource.test2.maxPoolSize = 25 mysql.datasource.test2.maxLifetime = 20000 mysql.datasource.test2.borrowConnectionTimeout = 30 mysql.datasource.test2.loginTimeout = 30 mysql.datasource.test2.maintenanceInterval = 60 mysql.datasource.test2.maxIdleTime = 60 mysql.datasource.test2.testQuery = select 1
application.properties
3)添加两个配置模型
模型放在com.royal.dbconfig包
@ConfigurationProperties("mysql.datasource.test1") public class DBConfig1 { private String url; private String username; private String password; private int minPoolSize; private int maxPoolSize; private int maxLifetime; private int borrowConnectionTimeout; private int loginTimeout; private int maintenanceInterval; private int maxIdleTime; private String testQuery; //........省略get和set方法..... }
@ConfigurationProperties("mysql.datasource.test2") public class DBConfig2 { private String url; private String username; private String password; private int minPoolSize; private int maxPoolSize; private int maxLifetime; private int borrowConnectionTimeout; private int loginTimeout; private int maintenanceInterval; private int maxIdleTime; private String testQuery;
//........省略get和set方法..... }
4)数据源配置
package com.royal.datasource; import java.sql.SQLException; import javax.sql.DataSource; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionFactoryBean; import org.mybatis.spring.SqlSessionTemplate; import org.mybatis.spring.annotation.MapperScan; 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.datasource.DataSourceTransactionManager; import com.atomikos.jdbc.AtomikosDataSourceBean; import com.royal.dbconfig.DBConfig1; import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource; @Configuration//注解到springboot容器中 @MapperScan(basePackages="com.royal.test1.mapper",sqlSessionFactoryRef="test1SqlSessionFactory") public class DataSource01 { // 配置数据源 @Primary @Bean(name = "test1DataSource") public DataSource testDataSource(DBConfig1 testConfig) throws SQLException { MysqlXADataSource mysqlXaDataSource = new MysqlXADataSource(); mysqlXaDataSource.setUrl(testConfig.getUrl()); mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true); mysqlXaDataSource.setPassword(testConfig.getPassword()); mysqlXaDataSource.setUser(testConfig.getUsername()); mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true); AtomikosDataSourceBean xaDataSource = new AtomikosDataSourceBean(); xaDataSource.setXaDataSource(mysqlXaDataSource); xaDataSource.setUniqueResourceName("test1DataSource"); xaDataSource.setMinPoolSize(testConfig.getMinPoolSize()); xaDataSource.setMaxPoolSize(testConfig.getMaxPoolSize()); xaDataSource.setMaxLifetime(testConfig.getMaxLifetime()); xaDataSource.setBorrowConnectionTimeout(testConfig.getBorrowConnectionTimeout()); xaDataSource.setLoginTimeout(testConfig.getLoginTimeout()); xaDataSource.setMaintenanceInterval(testConfig.getMaintenanceInterval()); xaDataSource.setMaxIdleTime(testConfig.getMaxIdleTime()); xaDataSource.setTestQuery(testConfig.getTestQuery()); return xaDataSource; } @Bean(name = "test1SqlSessionFactory") public SqlSessionFactory testSqlSessionFactory(@Qualifier("test1DataSource") DataSource dataSource) throws Exception { SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); return bean.getObject(); } @Bean(name = "test1SqlSessionTemplate") public SqlSessionTemplate testSqlSessionTemplate( @Qualifier("test1SqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception { return new SqlSessionTemplate(sqlSessionFactory); } }
test2的数据源一样,把test1改成test2
3.创建mapper与service,并写一个Controller进行测试
package com.royal.test1.service; import com.royal.model.User; import com.royal.test1.mapper.UserMapper; import com.royal.test2.mapper.CustomerMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; @Service @Transactional public class UserService{ @Autowired private UserMapper userMapper; @Autowired private CustomerMapper customerMapper; public void register(String name) { customerMapper.insert(name,"123"); userMapper.save(name,"123"); } }
mapper
package com.royal.test1.mapper; import org.apache.ibatis.annotations.Insert; import org.apache.ibatis.annotations.Param; public interface UserMapper { @Insert("insert into user(username,password) values(#{username},#{password})") public int save(@Param("username") String username, @Param("password") String password); }
package com.royal.test2.mapper; import org.apache.ibatis.annotations.Insert; import org.apache.ibatis.annotations.Param; public interface CustomerMapper { @Insert("insert into customer(name,tel) values(#{name},#{tel})") public int insert(@Param("name") String name, @Param("tel") String tel); }
Controller
package com.royal.Web.Controller; import com.royal.test1.service.UserSerivce; import com.royal.test2.service.CustomerService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping("user") public class UserController { @Autowired private UserSerivce userSerivce; @RequestMapping("add/{name}") @ResponseBody public String add(@PathVariable() String name){ userSerivce.register(name); return "success"; } }
Controller
4.Main方法
package com.royal; import com.royal.dbconfig.DBConfig1; import com.royal.dbconfig.DBConfig2; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.context.properties.EnableConfigurationProperties; import org.springframework.context.annotation.ComponentScan; @ComponentScan(basePackages = "com.royal") @EnableAutoConfiguration @EnableConfigurationProperties(value = {DBConfig1.class, DBConfig2.class}) public class App{ public static void main( String[] args ) { SpringApplication.run(App.class,args); } }
原文地址:https://www.cnblogs.com/royal6/p/12173514.html
时间: 2024-10-28 15:02:02