学步园

Person.xml

 

<!-- 模糊查询  -->
<select id="findPersons" parameterClass="com.tq365.vo.Person" resultMap="person_result">
        select * from t_person
<dynamic prepend="where">
<isNotEmpty prepend="and" property="personname">
                personname like '%$personname$%'
</isNotEmpty>
<!--此为精确查询,模糊查询写成like '%$value$%',#XX#,#将其在sql中表现为'XX'
            <isNotEmpty prepend="and" property="personname">
                (personname like #personname#)
            </isNotEmpty>
-->
<!-- 
            <isNotEmpty prepend="AND" property="address"> 
              (address like #address#) 
            </isNotEmpty> 
-->
</dynamic>
</select>  

PersonDao.java

 

 

    /**
     * 模糊查询,查询符合指定条件的所有Person对象
     * @param person
     * @return
*/
    @SuppressWarnings("unchecked")
public List<Person> findPersons(Person person){
        SqlMapClient sqlMapClient=SqlMapUtil.getSqlMapClient();
        List<Person> personList=new ArrayList<Person>();

try {
            sqlMapClient.startTransaction();
            personList=sqlMapClient.queryForList("findPersons", person);
            sqlMapClient.commitTransaction();
return personList;
        } catch (SQLException e) {
            e.printStackTrace();
        }finally{
try {
                sqlMapClient.endTransaction();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
return null;
    }