Java中向数据库中插入记录并返回该记录的id的值

用户注册是向表中插入用户的基本信息并返回该记录的id值

例子

public long regist(Cuser cuser) {

Connection con=Cconnection.getconnection();//Cconnection是的到数据库连接的类

PreparedStatement ps=null;

ResultSet rs=null;

long id = 0;//存放数据库返回的用户注册过后的id

try {

ps=con.prepareStatement(Csqlutil.REGIST,Statement.RETURN_GENERATED_KEYS);//将Csqlutil.REGIST改为sql语句

ps.setString(1, cuser.getUsername());

ps.setString(2, cuser.getName());

ps.setString(3, cuser.getPwd());

ps.setInt(4, cuser.getAge());

ps.setString(5, cuser.getSex());

ps.setString(6, cuser.getPhone());

ps.executeUpdate();

rs=ps.getGeneratedKeys();//这一句代码就是得到插入的记录的id

while(rs.next()){

id=rs.getLong(1);

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally{

try {

rs.close();

ps.close();

con.close();

} catch (SQLException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

return id;

}