代码实现

系统java源代码设计按照DAO模式设计分为3个包

Cd包放一些bean类：
allorder.java类
package cdshop.cd;
/**
 * <p>Title: </p>
 */
public class allorder {
        private long Id;   //ID序列号
        private long orderId;   //订单号表序列号
        private long cdNo;   //CD表序列号
        private int Amount;   //购买数量

        public allorder() {
                Id = 0;
                orderId = 0;
                cdNo = 0;
                Amount = 0;
        }
        public long getId() {
                return Id;
        }
        public void setId(long newId) {
                this.Id = newId;
        }
        public long getOrderId() {
                return orderId;
        }
        public void setOrderId(long orderId) {
                this.orderId = orderId;
        }
        public long getcdNo() {
                return cdNo;
        }
        public void setcdNo(long newcdNo) {
                this.cdNo = newcdNo;
        }
        public int getAmount() {
                return Amount;
        }
        public void setAmount(int newAmount) {
                this.Amount = newAmount;
        }
}
cd.java
package cdshop.cd;

/**
 * <p>CD类 </p>
 */

public class cd {
        private long Id;  //ID序列号
        private String cdName;         //CD名称
        private int cdClass;  //CD类别
        private String classname ;      //CD类别名
        private String Singer;  //歌手
        private String Publish;  //发行公司
        private String cdNo ;  //CD编号
        private String musiclist ; //歌曲列表
        private float Price ;  //售价
        private int Amount ;  //总数量
        private int Leav_number ; //剩余数量
        private String RegTime ; //登记时间
        private String picture ; //CD封面文件的名称
        /**
         * 图书的初始化
         */
        public cd() {
                Id = 0;
                cdName = "";
                cdClass = 0;
                classname = "";
                Singer = "";
                Publish = "";
                cdNo = "";
                musiclist = "";
                Price = 0;
                Amount = 0;
                Leav_number = 0;
                RegTime = "";
        }
        public void setId(long newId){
                this.Id = newId;
        }
        public long getId(){
                return Id;
        }
        public void setcdName(String newcdName) {
                this.cdName = newcdName;
        }
        public String getcdName() {
                return cdName;
        }
        public void setcdClass(int newcdClass) {
                this.cdClass = newcdClass;
        }
        public int getcdClass() {
                return cdClass;
        }
        public void setClassname(String cname) {
                this.classname = cname;
        }
        public String getClassname() {
                return classname;
        }
        public void setSinger(String newSinger) {
                this.Singer = newSinger;
        }
        public String getSinger() {
                return Singer;
        }
        public void setcdNo(String newcdNo) {
                this.cdNo = newcdNo;
        }
        public String getcdNo() {
                return cdNo;
        }
        public void setPublish(String newPublish) {
                this.Publish = newPublish;
        }
        public String getPublish() {
                return Publish;
        }
        public void setmusiclist(String newmusiclist) {
                this.musiclist= newmusiclist;
        }
        public String getmusiclist() {
                return musiclist;
        }
        public void setPrice(float newPrice) {
                this.Price = newPrice;
        }
        public float getPrice() {
                return Price;
        }
        public void setAmount(int newAmount) {
                this.Amount = newAmount;
        }
        public long getAmount() {
                return Amount;
        }
        public void setLeav_number(int newLeav_number) {
                this.Leav_number = newLeav_number;
        }
        public int getLeav_number() {
                return Leav_number;
        }
        public void setRegTime(String newRegTime) {
                this.RegTime = newRegTime;
        }
751com.cn
cdclass.java
package cdshop.cd;
/**
 * <p>CD分类类</p>
 */
public class cdclass {
        private int Id;   //ID序列号
        private String ClassName; //CD类别
        public cdclass() {
                Id = 0;
                ClassName = "";
              }
        public cdclass(int newId, String newname) {
                Id = newId;
                ClassName = newname;
              }
        public int getId() {
                return Id;
              }

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