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java.lang.IllegalArgumentException: At least one base package must be specified

来源：3-6 dao层开发

伊森丶

2018-09-06 18:16

java.lang.IllegalArgumentException: At least one base package must be specified 一直报这个错误我mapper的路径写错了吗

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1回答

慕虎638682

2018-09-10 18:43:05

错误原因：没有在主函数的类中对Mapper层进行扫描。
解决：加上对mapper层的扫描MapperScan
@ComponentScan(basePackages = { "cn.iponkan.controller"})
@MapperScan(basePackages = {"cn.iponkan.mapper"})
@EnableAutoConfiguration
public class SpringBootApplication {
    public static void main(String[] args){
        SpringApplication.run(SpringBootApplication.class,args);
    }
}

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