Eclipse中引入MyBatis约束

约束文件

解压mybatis源码jar包，约束文件在mybatis-3.4.0-sources\org\apache\ibatis\builder\xml目录下

KEY

confi的key值

http://mybatis.org/dtd/mybatis-3-config.dtd      

mapper的key值

http://ibatis.apache.org/dtd/ibatis-3-mapper.dtd      

在eclipse中配置

window->Preferences

搜索xml->点击xml catalog->点击add按钮,会弹出Add XML Catalog Element窗口->点击File System按钮->选择key的类型，并输入key值->点击ok即可

最后一步，申请保存并关闭

测试

mybatis.xml测试

mapper.xml测试

mybatis.xml文件格式

<?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>      

mapper.xml文件格式

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.simba1949.mapper.UserMapper">
    <select id="findAll" parameterType="User" resultType="User">
        SELECT * FROM user
    </select>
</mapper>