shipindaoimpl.java~4~

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package liangjuyan.dao;

import liangjuyan.shipin;
import liangjuyan.conndb;
import java.util.List;
import java.util.ArrayList;
import java.sql.ResultSet;
import java.sql.*;
import liangjuyan.chStr;

public class shipindaoimpl
    implements shipindao{
  private conndb conn = new conndb();
  //执行插入操作
  public int insert(shipin s) {
    chStr chStr = new chStr();
    int ret = -1;
    try {
      String sql = "Insert into shipin (Wupinming,Yanse,Changjia,Cailiao,Shiyongnianxian,Shengchanriqi,Goumaichishu,Tuijianzhishu,Youdian,Tupian,Tebietuijian,Datupian,Price) values('" +
          chStr.chStr(s.getWupinming()) + "','" + chStr.chStr(s.getYanse()) +
          "','" + chStr.chStr(s.getChangjia()) +"','" + chStr.chStr(s.getCailiao()) + "','" + chStr.chStr(s.getShiyongnianxian()) +
          "','" + chStr.chStr(s.getShengchanriqi()) + "','" +
          chStr.chStr(s.getGoumaichishu()) + "','" + chStr.chStr(s.getTuijianzhishu()) +
          "','" + s.getYoudian() + "','" + chStr.chStr(s.getTupian()) + "','" + s.getTebietuijian()+ "','" + s.getDatupian()+ "','" +s.getPrice()+ "')";
       ret = conn.executeUpdate(sql);
    }
    catch (Exception e) {
      ret = 0;
    }
    conn.close();
    return ret;
  }

  //执行修改操作
  public int update(shipin s) {
    int ret = -1;
    chStr chStr = new chStr();
    try {
      String sql = "update shipin set wupinming='" +
          chStr.chStr(s.getWupinming()) +
          "',yanse='" + chStr.chStr(s.getYanse()) + "',changjia='" +
         s.getChangjia()+ "',cailiao='" + chStr.chStr(s.getCailiao()) +
          "',shiyongnianxian='" + chStr.chStr(s.getShiyongnianxian()) +
          "',Shengchanriqi='" + chStr.chStr(s.getShengchanriqi()) + "',goumaichishu='" +
          chStr.chStr(s.getGoumaichishu()) + "',tuijianzhishu='" + chStr.chStr(s.getTuijianzhishu()) +
          "',youdian='" + chStr.chStr(s.getYoudian()) + "',tupian='" + chStr.chStr(s.getTupian()) + "',tebietuijian='"+s.getTebietuijian()+"',datupian='" + chStr.chStr(s.getDatupian()) + "',price='" + s.getPrice() + "' where shipinid=" + s.getShipinid();
      ret = conn.executeUpdate(sql);
    }
    catch (Exception e) {
      ret = 0;
    }
    conn.close();
    return ret;
  }

  //执行删除操作
  public int delete(shipin s) {
     int ret=-1;
     try{
       String sql="Delete from shipin where shipinid="+s.getShipinid();
       ret=conn.executeUpdate(sql);
     }catch(Exception e){
       ret=0;
     }
     conn.close();
     return ret;

   }


  //执行查询操作
  public List select() {
    shipin form = null;
    List list = new ArrayList();
    String sql = "select * from shipin";
    ResultSet rs = conn.executeQuery(sql);
    try {
      while (rs.next()) {
        form = new shipin();
        form.setShipinid(Integer.valueOf(rs.getString(1)));

        list.add(form);
      }
    }
    catch (SQLException ex) {
    }
    conn.close();
    return list;
  }

  public shipin select1() {
    return null;
  }

}