spring boot 多数据源造成 mybatis xml文件报 rg.apache.ibatis.binding.BindingException: Invalid bound statement

 在配置springboot 多数据源是重新定义了DataSource ,SqlSessionFactory等类，配置如下

/**
 * 配置数据源
 * @return
 */
@Bean(name = "videoDataSource")
@ConfigurationProperties(prefix = "spring.datasource.db1")
@Primary
public DataSource videoDataSource(){
    return DataSourceBuilder.create().build();
}

/**
 * 配置SqlSessionFactory
 * @param dataSource
 * @return
 * @throws Exception
 */
@Bean(name = "videoSqlSessionFactory")
@Primary
public SqlSessionFactory videoSqlSessionFactory(@Qualifier("videoDataSource") DataSource dataSource) throws Exception {
    SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
    sqlSessionFactoryBean.setDataSource(dataSource);
    return  sqlSessionFactoryBean.getObject();
}

@Bean(name = "videoTransactionManager")
@Primary
public DataSourceTransactionManager videoTransactionManager(@Qualifier("videoDataSource") DataSource dataSource){
    return new DataSourceTransactionManager(dataSource);
}

@Bean(name = "videoSqlSessionTemplate")
@Primary
public SqlSessionTemplate videoSqlSessionTemplate(@Qualifier("videoSqlSessionFactory") SqlSessionFactory sqlSessionFactory){
    return new SqlSessionTemplate(sqlSessionFactory);
}

@Bean(name = "videoJdbcTemplate")
public JdbcTemplate videoJdbcTemplate(@Qualifier("videoDataSource") DataSource dataSource) {
    return new JdbcTemplate(dataSource);
}

mapper文件如下

public interface CCVideoMapper {
    /**
     * 获取视频类型
     * @return
     */
    List>  getVideoType();

    /**
     * 根据视频类型获取视频id
     * @param videoType
     * @return
     */
    List>  getVideoIdsByVideoType(String videoType);

    /**
     * 获取学校列表
     * @param schoolName
     * @param schoolId
     * @return
     */
    List>  getSchoolList(@Param("schoolName") String schoolName, @Param("schoolId") String schoolId);

    /**
     * 查询视频权限是否存在
     * @param schoolRoleId
     * @param schoolId
     * @return
     */
    List>  getSchoolRoleMapping(@Param("schoolRoleId") String schoolRoleId, @Param("schoolId") String schoolId);

    /**
     * 增加视频权限内容
     * @param videoFileId
     * @param schoolId
     * @return
     */
    int insertCCSchoolFileLimits(@Param("videoFileId") String videoFileId, @Param("schoolId") String schoolId);

    List> selectCCSchoolFileLimits(@Param("videoFileId") String videoFileId, @Param("schoolId") String schoolId);
}

 

service 

 

控制器

在这些代码都编写完成以后，把以前的jdbc的代码写进mybatis的xml文件中，一直报rg.apache.ibatis.binding.BindingException: Invalid bound statement (not found): 这个错误，检查了一遍xml、配置文件均没问题，经过代码源码的排查，最后锁定在

MybatisAutoConfiguration这个类，有一个创建SqlSessionFactory 方法

@Bean
@ConditionalOnMissingBean
public SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception {
  SqlSessionFactoryBean factory = new SqlSessionFactoryBean();
  factory.setDataSource(dataSource);
  factory.setVfs(SpringBootVFS.class);
  if (StringUtils.hasText(this.properties.getConfigLocation())) {
    factory.setConfigLocation(this.resourceLoader.getResource(this.properties.getConfigLocation()));
  }
  applyConfiguration(factory);
  if (this.properties.getConfigurationProperties() != null) {
    factory.setConfigurationProperties(this.properties.getConfigurationProperties());
  }
  if (!ObjectUtils.isEmpty(this.interceptors)) {
    factory.setPlugins(this.interceptors);
  }
  if (this.databaseIdProvider != null) {
    factory.setDatabaseIdProvider(this.databaseIdProvider);
  }
  if (StringUtils.hasLength(this.properties.getTypeAliasesPackage())) {
    factory.setTypeAliasesPackage(this.properties.getTypeAliasesPackage());
  }
  if (this.properties.getTypeAliasesSuperType() != null) {
    factory.setTypeAliasesSuperType(this.properties.getTypeAliasesSuperType());
  }
  if (StringUtils.hasLength(this.properties.getTypeHandlersPackage())) {
    factory.setTypeHandlersPackage(this.properties.getTypeHandlersPackage());
  }
  if (!ObjectUtils.isEmpty(this.typeHandlers)) {
    factory.setTypeHandlers(this.typeHandlers);
  }
  if (!ObjectUtils.isEmpty(this.properties.resolveMapperLocations())) {
    factory.setMapperLocations(this.properties.resolveMapperLocations());
  }
  Set factoryPropertyNames = Stream
      .of(new BeanWrapperImpl(SqlSessionFactoryBean.class).getPropertyDescriptors()).map(PropertyDescriptor::getName)
      .collect(Collectors.toSet());
  Class defaultLanguageDriver = this.properties.getDefaultScriptingLanguageDriver();
  if (factoryPropertyNames.contains("scriptingLanguageDrivers") && !ObjectUtils.isEmpty(this.languageDrivers)) {
    // Need to mybatis-spring 2.0.2+
    factory.setScriptingLanguageDrivers(this.languageDrivers);
    if (defaultLanguageDriver == null && this.languageDrivers.length == 1) {
      defaultLanguageDriver = this.languageDrivers[0].getClass();
    }
  }
  if (factoryPropertyNames.contains("defaultScriptingLanguageDriver")) {
    // Need to mybatis-spring 2.0.2+
    factory.setDefaultScriptingLanguageDriver(defaultLanguageDriver);
  }

  return factory.getObject();
}

 

其中

if (!ObjectUtils.isEmpty(this.properties.resolveMapperLocations())) {
  factory.setMapperLocations(this.properties.resolveMapperLocations());
}
增加mapper文件的配置，而我们重写了SqlSessionFactory ,这段代码不存在，所以怎么配置也没有扫描到xml文件

 在数据源配置那里加上

/*//设置mybatis的主配置文件  记住是主配置文件啊
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        Resource mybatisXml = resolver.getResource("classpath:mybatis/mybatis-config.xml");
        sqlSessionFactoryBean.setConfigLocation(mybatisXml);
        //设置mapper.xml文件的路径*/
//        Resource [] resource = resolver.getResources("classpath*:mybatis/mapper/**/*.xml");//{resourceMapXML};
//        sqlSessionFactoryBean.setMapperLocations(resource);

便可以解决这个问题