shenghuoyongpindaoimpl.java~1~

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package liangjuyan.dao;

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

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

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

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

   }


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

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

  public shenghuoyongpin select1() {
   return null;
 }


}