mapper返回自动生成的主键,参见红色部分配置。
<insert id="insert" parameterType="cn.niter.forum.model.Article">
  
	    <selectKey keyProperty="id" resultType="Long" order="AFTER">
	      select last_insert_id()
	    </selectKey>
	    
    insert into article (id, title, description, 
      html, markdown, article_type, 
      source, link, pub_date
      )
    values (#{id,jdbcType=BIGINT}, #{title,jdbcType=VARCHAR}, #{description,jdbcType=VARCHAR}, 
      #{html,jdbcType=VARCHAR}, #{markdown,jdbcType=VARCHAR}, #{articleType,jdbcType=INTEGER}, 
      #{source,jdbcType=VARCHAR}, #{link,jdbcType=VARCHAR}, #{pubDate,jdbcType=VARCHAR}
      )
  </insert>