Since everyone always forgets these, here are the MyBatis 3.0.x dtd headers that you should put at the top of your mybatis xml files.
The main mybatis configuration file:
projectname/src/mybatis.config.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> ... </configuration>
Any mybatis mapper file:
projectname/src/com/package/MyMapper.xml
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper> ... </mapper>