Mybatis writing

Mybatis设置主键和自增

方法1：
    <insert id="insert" parameterType="Person" useGeneratedKeys="true" keyProperty="id">
        insert into person(name,pswd) values(#{name},#{pswd})
    </insert>
 
方法2：
    <insert id="insert" parameterType="Person">
        <selectKey keyProperty="id" resultType="long">
            select LAST_INSERT_ID()
        </selectKey>
        insert into person(name,pswd) values(#{name},#{pswd})
    </insert>

keyProperty = "id" primary key setting value.

useGeneratedKeys = "true" if the increment, but also to design a good database primary key increment.