mybatis plus 出现 Invalid bound statement (not found)

mybatis-plus 3.5.6 has the following error according to the configuration of the official website

org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.niu.manager.mapper.DepartmentMapper.selectList
at org.apache.ibatis.binding.MapperMethodKaTeX parse error: Undefined control sequence: \[ at position 43: …hod.java:235) ~\̲[̲mybatis-3.5.6.j…cachedInvoker$0(MapperProxy.java:115) ~[mybatis-3.5.6.jar:3.5.6]
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) ~[na:1.8.0_211]

solve

usual solution

• Check configuration @MapperScan(basePackages = " com.xxx.mapper ")

• Check if the configuration path of mybatis.mapper-locations: classpath: mapper/*.xml is correct

• Pay attention to whether there is a mapper.xml file in the target directory of the project, if not, add the following configuration to pom.xml

  <!-- 项目打包时会将java目录中的*.xml文件也进行打包 -->
  <build>
      <resources>
          <resource>
              <directory>src/main/java</directory>
              <includes>
                  <include>**/*.xml</include>
              </includes>
              <filtering>false</filtering>
          </resource>
      </resources>
  </build>
  

pit of mybatis puls

• Pit: You cannot use the built-in SqlSessionFactory when using mybatis-plus. To use MybatisSqlSessionFactory, add the following configuration (springboot) to the configuration class

  @Primary
  @Bean("db1SqlSessionFactory")
  public SqlSessionFactory db1SqlSessionFactory(DataSource dataSource) throws Exception {
      /**
       * 使用 mybatis plus 配置
       */
      MybatisSqlSessionFactoryBean b1 = new MybatisSqlSessionFactoryBean();
      System.out.println("dataSourceLyz"+dataSource.toString());
      b1.setDataSource(dataSource);
      b1.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
      return b1.getObject();
  }