select * from table where 1=1 <if test="tUserId!=null and tUserId!=‘‘"> and t_user_id=#{tUserId} </if> <if test="toolCode!=null and toolCode!=‘‘"> and .tool_code=#{toolCode} </if> <if test="workCode!=null and workCode!=‘‘"> and work_code=#{workCode} </if> <if test="bDate!=null and bDate!=‘‘"> and b_date>#{bDate} </if>
