eclipse配置mybatis 的xml提示

1.点击 Window--preferences-XML-XML Catalog-add
2.配置XML Catalog Element
  Location: 点击 File System ,找到 \org\apache\ibatis\builder\xml\mybatis-3-mapper.dtd(直接把http://mybatis.org/dtd/mybatis-3-mapper.dtd下载到本地就行了)
  Key Code:
      URI
  Key:
      http://mybatis.org/dtd/mybatis-3-mapper.dtd
3.选择默认打开XML文件的编辑器
    在 Window-Preferences-General-Editors-File Associations 中，
         File types:选择 *.xml,
        Associated editors:选择 XML Editor (Locked by XML （Illformed))

4.重新打开xml