注入错误了

package com.imooc.o2ov2.Config.dao;


import org.mybatis.spring.SqlSessionFactoryBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;

import javax.annotation.Resource;
import javax.sql.DataSource;
import java.io.IOException;

@Configuration
public class SessionFactoryConfiguration {

    @Resource
    private DataSource dataSource;

    private String typeAliasesPackage = "com.imooc.o2ov2.entity";
    private String mapperLocations = "/mapper/**.xml";
    private String configLocation = "mybatis-config.xml";

    @Bean(name="sqlSessionFactory")
    public SqlSessionFactoryBean createSqlSessionFactoryBean() throws IOException {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setConfigLocation(new ClassPathResource(configLocation));
        PathMatchingResourcePatternResolver pathMatchingResourcePatternResolver = new PathMatchingResourcePatternResolver();
        String packageSearchPath = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX + mapperLocations;
        sqlSessionFactoryBean.setMapperLocations(pathMatchingResourcePatternResolver.getResources(packageSearchPath));
        sqlSessionFactoryBean.setTypeAliasesPackage(typeAliasesPackage);
        sqlSessionFactoryBean.setDataSource(dataSource);
        return sqlSessionFactoryBean;

    }
}

老师你好我都配置在这里面了，没有像老师那样设置成静态属性，麻烦老师看看这样写着有错吗

同学你好，可能是哪里配置有问题，导致扫描失效，没有自动生成dao的实现类，无法自动注入。

建议同学检查一下application.properties中的mybatis配置以及SessionFactoryConfiguration中是否有设置mapper路径，如:

祝：学习愉快~