Mybatis的xml文件扫描之填坑

it2026-02-08  0

问题1

有个xml文件的类型与其mapper名不一致,

调用接口时,提示 

Invalid bound statement (not found) 

问题2

MbgOrderDao.java 与MbgOrderDao.xml

xml的存放路径与Dao的包路径不一致

调用接口时,提示 

Invalid bound statement (not found) 

谜底

测试环境(一直没有问题)

application.yml中配置了

mybatis: mapper-locations: - classpath:dao/*.xml - classpath*:com/**/mapper/**/*.xml application-dev.yml mybatis: mapper-locations: classpath: dao/*Dao.xml

正式环境(MbgOrderDao报Invalid bound statement (not found) )

application.yml中配置了

mybatis: mapper-locations: - classpath:dao/*.xml - classpath*:com/**/mapper/**/*.xml application-prod.yml mybatis: mapper-locations: classpath:dao/*Dao.xml

知识点1:application-{profile}.yml中的配置会覆盖调application.yml中的同名key的配置

application-dev.yml中的mybatis:mapper-locations: 的值带空格,覆盖了application.yml的中mybatis:mapper-locations:

application-prod.yml中的mybatis:mapper-locations: 的值不带空格,没有覆盖覆盖了application.yml的配置classpath

知识点2:mybatis默认到报名的路径下找与mapper同名的xml文件,且springboot的resource的路径与mapper的报名一致时,编译后mapper与xml会在统一同一路径下,此时不配置xml扫描路径也可以

知识点3:

mybatis: configuration: log-impl: org.apache.ibatis.logging.stdout.StdOutImpl # 打印sql 返回值 也可打印扫描的xml文件,但是xml与mapper同路径时且未配置此处扫描路径,则不打印()

知识点4:答应mybatis读取的配置

public class Application implements CommandLineRunner{ @Autowired MybatisProperties mybatisProperties; public static void main(String[] args) { SpringApplication.run(MallPortalApplication.class, args); } @Override public void run(String... args) throws Exception { String[] argss = mybatisProperties.getMapperLocations(); System.out.printf(StringUtils.join(argss)); } }

 

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