sysinfodao.java

网上购物系统

package eshopsys.sysinfo.model;

import java.sql.*;
import java.util.*;
import eshopsys.tools.base.BaseDao;
import eshopsys.tools.base.BaseEntity;
import eshopsys.tools.database.DataBaseTool;
import eshopsys.sysinfo.model.*;

public class SysInfoDao extends BaseDao {
//////////////////////////////////////////////////////////////////////////
	protected BaseEntity[] pack(ResultSet resultset) throws SQLException {
		 ArrayList result = new ArrayList();
		 SysInfoEntity[] sysinfos = null;
		    while (resultset.next()) {
		      SysInfoEntity sysinfo = new SysInfoEntity();
		      sysinfo.setSysName(resultset.getString("sysName"));
		      sysinfo.setSysVersion(resultset.getString("sysVersion"));
		      sysinfo.setCompanyAddress(resultset.getString("companyAddress"));
		      sysinfo.setContactPhone(resultset.getString("contactPhone"));
		      sysinfo.setContactEmail(resultset.getString("contactEmail"));
		      result.add(sysinfo);
		    }
		    if (result.size() > 0) {
		    	sysinfos= new SysInfoEntity[result.size()];
		      result.toArray(sysinfos);
		    }
		    return sysinfos;

	}
//////////////////////////////////////////////////////////////////////////	
	public void insert( SysInfoEntity sysinfo) throws
    SQLException {
    PreparedStatement ps = null;
    StringBuffer buffer = new StringBuffer();
    try {
    //构造添加sql语句
    buffer.append("INSERT INTO tbl_sysinfo(sysName,sysVersion,companyAddress,contactPhone,contactEmail)");
    buffer.append(" VALUES(?,?,?,?,?)");

    ps = con.prepareStatement(buffer.toString());
    //设置sql语句的参数
    int index = 1;
    ps.setString(index++, sysinfo.getSysName());
    ps.setString(index++, sysinfo.getSysVersion());
    ps.setString(index++, sysinfo.getCompanyAddress());
    ps.setString(index++, sysinfo.getContactPhone());
    ps.setString(index++, sysinfo.getContactEmail());

    
    //执行sql语句
    ps.executeUpdate();
  }
  catch (Exception e) {
    throw new SQLException("向表(tbl_staff)中插入数据发生异常 ： " + e.getMessage());
  }
  finally {
    DataBaseTool.close(ps);
  }
 }
//////////////////////////////////////////////////////////////////////////
	//更新一条会员记录
	  public void update(SysInfoEntity sysinfo) throws     
	 SQLException {
	    PreparedStatement ps = null;
	    StringBuffer buffer = new StringBuffer();
	    try {
	      //构造更新sql语句
	      buffer.append("UPDATE tbl_sysinfo SET ");
	      buffer.append("sysName=?,sysVersion=?,companyAddress=?,contactPhone=?,contactEmail=?");
	      buffer.append(" WHERE sysName = ?");
	      ps = con.prepareStatement(buffer.toString());

	      //设置参数
	      int index = 1;
	      ps.setString(index++, sysinfo.getSysName());
	      ps.setString(index++, sysinfo.getSysVersion());
	      ps.setString(index++, sysinfo.getCompanyAddress());
	      ps.setString(index++, sysinfo.getContactPhone());
	      ps.setString(index++, sysinfo.getContactEmail());
	      ps.setString(index++, sysinfo.getSysName());
	      //执行
	      ps.executeUpdate();
	    }
	    catch (Exception e) {
	      throw new SQLException("更新表(tbl_sysinfo)时发生异常 : " + e.getMessage());
	    }
	    finally {
	      DataBaseTool.close(ps);
	    }
	  }

}