已检查jar包是否引入
<dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.2</version> </dependency>
还有一种是从某个版本后mybatis没有自动注入sqlSessionFactory
手动创建注入设置类
package com.example.demo.config; import com.alibaba.druid.pool.DruidDataSource; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionFactoryBean; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import javax.sql.DataSource; /** * @author canger * @Deseription * @create 2019/2/25 16:30 **/ @Configuration public class MybatisConfig { @Autowired private DataSourceProperties dataSourceProperties; @Bean(name = "dataSource") public DataSource dataSource() { DruidDataSource dataSource = new DruidDataSource(); dataSource.setUrl(dataSourceProperties.getUrl()); System.out.println(dataSourceProperties.getUrl()); dataSource.setDriverClassName(dataSourceProperties.getDriverClassName()); dataSource.setUsername(dataSourceProperties.getUsername()); dataSource.setPassword(dataSourceProperties.getPassword()); return dataSource; } public SqlSessionFactory sqlSessionFactory() throws Exception { SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean(); sqlSessionFactoryBean.setDataSource(dataSource()); return sqlSessionFactoryBean.getObject(); } }