package cn.xt.config;

import org.mybatis.spring.SqlSessionFactoryBean;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

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

import org.springframework.context.annotation.Bean;

import org.springframework.context.annotation.Configuration;

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

import javax.naming.Context;

import javax.naming.InitialContext;

import javax.sql.DataSource;

/**

 * SqlSession配置

 */

@Configuration

public class SqlSessionConfig {

    private Logger logger = LoggerFactory.getLogger(SqlSessionConfig.class);

    @Value("${spring.datasource.jndi-name}")

    private String dataSourceJndiName;

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

    private String mapperLocations;

    @Bean

    public SqlSessionFactoryBean createSqlSessionFactory() {

        SqlSessionFactoryBean sqlSessionFactoryBean = null;

        try {

            // 加载JNDI配置

            Context context = new InitialContext();

            DataSource dataSource = (DataSource)context.lookup(dataSourceJndiName);

            // 实例SessionFactory

            sqlSessionFactoryBean = new SqlSessionFactoryBean();

            // 配置数据源

            sqlSessionFactoryBean.setDataSource(dataSource);

            // 加载MyBatis配置文件

            PathMatchingResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();

            // 能加载多个，所以可以配置通配符(如：classpath*:mapper/**/*.xml)

            sqlSessionFactoryBean.setMapperLocations(resourcePatternResolver.getResources(mapperLocations));

            // 配置mybatis的config文件(我目前用不上)

            // sqlSessionFactoryBean.setConfigLocation("mybatis-config.xml");

        } catch (Exception e) {

            logger.error("创建SqlSession连接工厂错误：{}", e);

        }

        return sqlSessionFactoryBean;

    }

}