mybatis 配置文件报错:"Referenced file contains errors(file:/D:/config/ mybatis-3-mapper.dtd).

<!DOCTYPE generatorConfiguration  
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"  

        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">

  解决方法是：添加XML CATALOG 
eclipse-->window-->preferences-->xml-->XML Catalog-->User Specified Entries-->Add--->找到下载文件的路径  
添加进来即可 key:-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN  location：下载文件的路径