使用Spring的SimpleJdbcTemplate完成DAO操作
public class StuDaoImple implements StuDaointer {??? private SimpleJdbcTemplate simplejdbctemp;
??? public StuDaoImple(){
?????? simplejdbctemp=new SimpleJdbcTemplate(SQLConnUtil.getDataSource());
??? }// SQLConnUtil为JDBC工具类，提供了得到数据源的静态方法
??? /*
??? ?* 可以通过SimpleJdbcTemplate得到NamedParameterJdbcTemplate或JdbcTemplate
??? ?*/
??? public void AddStu(Stu stu){
?????? String sql="insert into stu values(:sname,:ssex,:sbrith)";
?????? SqlParameterSource ps=new BeanPropertySqlParameterSource(stu);
?????? KeyHolder key=new GeneratedKeyHolder();
?????? this.simplejdbctemp.getNamedParameterJdbcOperations().update(sql, ps, key);
?????? System.out.println(key.getKey().intValue());
??? }
??? /* SimpleJdbcTemplate的第一个好处：
??? ?* SimpleJdbcTemplate的update方法中参数是动态的,但是只能用?代替参数
??? ?*/
??? public void DelStu(int id){
?????? String sql="delete stu where s_id=?";
?????? simplejdbctemp.update(sql, id);
??? }
??? /*
??? ?* SimpleJdbcTemplate的update方法中参数是动态的，它的个数是动态的
??? ?*/
??? public void UpdStu(Stu stu){
?????? String sql="update stu set s_name=?,s_sex=?,s_brith=? where s_id=?";
?????? simplejdbctemp.update(sql, stu.getSname(),stu.getSsex(),stu.getSbrith(),stu.getSid());
??? }
??? /*
??? ?* SimpleJdbcTemplate的第二个好处：
??? ?* SimpleJdbcTemplate的queryForObject方法可以直接返回Stu对象，不用转换
??? ?*/
??? public Stu getone(int id){
?????? String sql="select s_id as sid,s_name as sname,s_sex as ssex,s_brith as sbrith from stu where s_id=?";
?????? Stu stu=simplejdbctemp.queryForObject(sql, ParameterizedBeanPropertyRowMapper.newInstance(Stu.class), id);
?????? return stu;
??? }
??? public List getall(){
?????? String sql="select s_id as sid,s_name as sname,s_sex as ssex,s_brith as sbrith from stu";
?????? List list=simplejdbctemp.getJdbcOperations().query(sql, new BeanPropertyRowMapper(Stu.class));
?????? return list;
??? }
}
public void AddStu(Stu stu){ String sql="insert into stu values(:sname,:ssex,:sbrith)"; SqlParameterSource ps=new BeanPropertySqlParameterSource(stu); KeyHolder key=new GeneratedKeyHolder(); this.simplejdbctemp.getNamedParameterJdbcOperations().update(sql, ps, key); System.out.println(key.getKey().intValue()); }