getdata.java

来自「ajax实现动态曲线绘制」· Java 代码 · 共 21 行

package whut;
import whut.DataBase;

public class GetData extends DataBase{
   String str="select * from point where ID=1";
   
   public boolean excute() throws Exception {
       boolean flag = false;
       DataBase db = new DataBase();
       db.connect();
       stmt = db.conn.createStatement ();
       rs = stmt.executeQuery(str);
       if (rs.next()){
      	
       flag = true;
       }
       
       return flag;
}
}