springboot+jndi+tomcat配置多数据源

1.在application.properties中，添加jndi配置，如下图

2.新建dataSourceConfig类

3.dataSourceConfig类详细代码，这里只贴出其中一个，多个数据源类似配置，只需更改 basePackages 路径和@Value("${spring.datasource.source1.jndi-name}")，以及下面名称带test1前缀的地方，不要和其他dataSourceConfig重名

@Configuration //注册到springboot 容器中
@MapperScan(basePackages = "对应的Mapper包路径",sqlSessionTemplateRef  = "test1SqlSessionTemplate")
public class DataSource1Config {

    //application.properties中的jndi名称
    @Value("${spring.datasource.source1.jndi-name}")
    private String jndiName;

    @Bean(name = "test1DataSource",destroyMethod = "") // destroy method is disabled for Weblogic update app ability
    @ConfigurationProperties(prefix = "spring.datasource.bigdata")
    public DataSource bigdataDs() throws NamingException {
        JndiObjectFactoryBean bean=new JndiObjectFactoryBean();
       bean.setJndiName(jndiName);
        bean.setProxyInterface(DataSource.class);
        bean.setLookupOnStartup(false);
        bean.afterPropertiesSet();
        return (DataSource) bean.getObject();
    }

    @Bean(name = "test1SqlSessionFactory")
    public SqlSessionFactory testSqlSessionFactory(@Qualifier("test1DataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        //加载其他文件，如mapper.xml
        // bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mybatis/mapper/test1/*.xml"));
        return bean.getObject();
    }

    //事务管理
    @Bean(name = "test1TransactionManager")
    public DataSourceTransactionManager testTransactionManager(@Qualifier("test1DataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

    @Bean(name = "test1SqlSessionTemplate")
    public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("test1SqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
        return new SqlSessionTemplate(sqlSessionFactory);
    }
}
4.打开tomcat目录下context.xml文件，添加以下配置，多个数据源写多个Resource即可，注意name需要和application.properties配置的名称一致

<Resource name="jdbc/数据库名称" auth="Container" type="javax.sql.DataSource"
maxTotal="100" maxIdle="30" maxWaitMillis="10000"
username="javauser" password="javadude" driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/javatest"/>

5.打成war包，部署到tomcat服务器运行，注意查看启动日志