我在数据库表中添加一个字段，然后在idea中使用mybatis-generator 插件重新生成类，resource下mapper文件会报错！怎么解决

Question

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationContext-datasource.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:\Software\Tomcat\tomcat7\apache-tomcat-7.0.75\webapps\ROOT\WEB-INF\classes\mappers\tlasuserMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.vistar.dao.tlasuserMapper.BaseResultMap

Answer 1

Geely 2017-05-18 21:04:59

hi 同学你好

ause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.vistar.dao.tlasuserMapper.BaseResultMap

这个提示很明显啦。哈哈哈 你重复生成了，检查一下这个mapper哟

• 提问者 以yu之名丶 #1

  非常感谢！

Answer 2

Geely 2017-05-18 21:05:12

生成之前记得把原来的删除哟

• 提问者 以yu之名丶 #1

  原来的文件里面如果是有改动的话，那就得重新再写是吗？