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/***************¶¨Òå½Ó¿Ú******************/
 package day6;
public interface StudentDao {
 
 public void insert();
 public void update();
 public void delete();
 public void query();
 public void FindById();
}
/***************¶¨Òå½Ó¿Ú ½èËÞ******************/
/***************ʹÓýӿÚ******************/
package day6;
public class Mysql implements StudentDao {
 public void FindById() {
  // TODO Auto-generated method stub
  System.out.println("FindById.....");
 }
 public void delete() {
  // TODO Auto-generated method stub
 }
 public void insert() {
  // TODO Auto-generated method stub
 }
 public void query() {
  // TODO Auto-generated method stub
 }
 public void update() {
  // TODO Auto-generated method stub
 }
}
/***************ʹÓÃ½Ó¿Ú ½áÊø******************/
/****************ÒÀÀµ×¢Èë*************************/
package day6;
public class StudentBiz {
 
 private StudentDao sd=new Mysql();
 public void FindStuById() {
  sd.FindById();
 }
 public void deleteStu() {
  sd.delete();
 }
 public void insertStu() {
  sd.insert();
 }
 public void queryStu() {
  sd.query();
 }
 public void updateStu() {
  sd.update();
 }
}
/****************ÒÀÀµ×¢Èë ½áÊø*************************/
/*******************²âÊÔÀà************************/
package day6;
public class Test {
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  StudentBiz sb=new StudentBiz();
  sb.FindStuById();
 }
}
/*******************²âÊÔÀà ½áÊø************************/
/********************** ¶¨Òå ³éÏóÀà **********************/
package day6;
public class TestAbstract {
 
 static publ


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