script

要在带注解的映射器接口类中使用动态 SQL，可以使用 script 元素。比如:

1. @Update({"<script>",
2. "update Author",
3. "  <set>",
4. "    <if test='username != null'>username=#{username},</if>",
5. "    <if test='password != null'>password=#{password},</if>",
6. "    <if test='email != null'>email=#{email},</if>",
7. "    <if test='bio != null'>bio=#{bio}</if>",
8. "  </set>",
9. "where id=#{id}",
10. "</script>"})
11. void updateAuthorValues(Author author);