storebean.java

利用JavaBean和JSP实现学校图书馆管理系统。分5个模块：图书查询、借阅管理、图书管理、借阅证管理和读者规则管理。

/**********************************************************
Copyright (C),2004-8-12, Beijing  USTB.
All rights reserved.
Filename: StorePlaceBean.java
Author: 邹晨
Version 1.0
Date:2004-8-12
Description:书库管理
Other:
Variable List:

Function List:
History:

 
***********************************************************/
package kjb2.library.bean;

import java.text.*;
import java.util.*;
import java.lang.*;
import java.io.*;
import java.sql.*;
import kjb.main.*;

public class StoreBean extends kjb.main.ParentBean
{
	private String id = "-1";

	//设置馆ID
	public void setID(String i)
	{
		id = i;
	}

	//取得所有信息内容
	public Vector getData(int page)
	{
		String sql = "";
		sql = " select * from KJB2_KJXX_Store";
		return getOnePage(sql,page,20);
	}


	public Vector getList(String BookClass)
	{
		String sql = "";
		sql = " select * from KJB2_KJXX_Store where BookClassID=" + BookClass;
		return searchData(sql);
	}
	
	//根据某库取得此库的详细信息
	public Hashtable getOneData(String id)
	{
		String sql="";
		sql = "select * from KJB2_KJXX_Store where BookID="+id+"";
		return searchOneData(sql);
	}


	//新增库
	public int insert(Hashtable hash)
	{
		int intID = makeID("KJB2_KJXX_STORE","BookID","","",true);

		Vector vect = new Vector();
		vect.add("KJB2_KJXX_STORE");

		vect.add(addVector("BOOKID",String.valueOf(intID),"NUM"));
		vect.add(addVector("BOOKCLASSID",ds.toString((String)hash.get("BOOKCLASSID")),"NUM"));
		vect.add(addVector("STOREID",ds.toString((String)hash.get("STOREID")),"NUM"));
		vect.add(addVector("SQH",ds.toString((String)hash.get("SQH")),"CHAR"));
		vect.add(addVector("TMH",ds.toString((String)hash.get("TMH")),"CHAR"));
		vect.add(addVector("NJH",ds.toString((String)hash.get("NJH")),"CHAR"));
		vect.add(addVector("ZT",ds.toString((String)hash.get("ZT")),"CHAR"));

		vect.add(addVector("RGSJ",(new java.util.Date()).toString(),"CHAR"));

		

		return insertRecord(vect);
	}


	//修改库信息
	public int update(Hashtable hash)
	{

		Vector vect = new Vector();
		vect.add("KJB2_KJXX_Store");
		
		vect.add(addVector("STOREID",ds.toString((String)hash.get("STOREID")),"CHAR"));
		vect.add(addVector("SQH",ds.toString((String)hash.get("SQH")),"CHAR"));
		vect.add(addVector("TMH",ds.toString((String)hash.get("TMH")),"CHAR"));
		vect.add(addVector("NJH",ds.toString((String)hash.get("NJH")),"CHAR"));
		vect.add(addVector("ZT",ds.toString((String)hash.get("ZT")),"CHAR"));

		vect.add(addVector("RGSJ",ds.toString((String)hash.get("RGSJ")),"CHAR"));
		vect.add("BookID = " + ds.toString((String)hash.get("BOOKID")));

		return updateRecord(vect);
	}


	//删除库信息
	public int delete(String id)
	{
		String sql="";
		sql="delete from KJB2_KJXX_Store where BookID="+id;
		return deleteRecord(sql);
	}


	//判断某库中是否有书
	public boolean isHaveBook(String id)
	{
		String sql="";
		sql="select * from KJB2_KJXX_Book where BookClassID="+id;
		Vector vect = getDataBySql(sql);
		if(vect.isEmpty())
			return false;
		else
			return true;
	}



	//查找一条记录统一函数
	private Hashtable searchOneData(String sql) 
	{
		Hashtable hash = new Hashtable();
		ResultSet rs = selectRecord(sql);

		Statement stmt = null;
		try{
			//取得列数和列名
			ResultSetMetaData rsmd = rs.getMetaData();
			int cols = rsmd.getColumnCount();
			if(rs.next())
			{	
				for(int i=1;i<=cols;i++)
				{
					String field = ds.toString(rsmd.getColumnName(i));
					String value = ds.toString(rs.getString(i));
					hash.put(field,value);
				}
			}
		}catch(Exception e){System.out.println("运行时出错："+e);}
		finally{
			if(rs!=null)try{ stmt = rs.getStatement(); rs.close();}catch(Exception e){System.out.println("关闭记录集rs时出错"+e);}
			if(stmt!=null) try{stmt.close();}catch(Exception e){System.out.println("关闭声明时statement出错"+e);}		
		}
		return hash;
	}	


	//查找所有的统一函数
	private Vector searchData(String sql) 
	{
		Vector vect = new Vector();
		ResultSet rs = selectRecord(sql);

		//取得列数和列名
		Statement stmt = null;
		try{
			ResultSetMetaData rsmd = rs.getMetaData();
			int cols = rsmd.getColumnCount();
			while(rs.next())
			{	
				Hashtable hash = new Hashtable();
				for(int i=1;i<=cols;i++)
				{
					String field = ds.toString(rsmd.getColumnName(i));
					String value = ds.toString(rs.getString(i));
					hash.put(field,value);
				}
				vect.add(hash);
			}
		}catch(Exception e){System.out.println("运行时出错："+e);}
		finally{
			if(rs!=null)try{ stmt = rs.getStatement(); rs.close();}catch(Exception e){System.out.println("关闭记录集rs时出错"+e);}
			if(stmt!=null) try{stmt.close();}catch(Exception e){System.out.println("关闭声明时statement出错"+e);}		
		}
		return vect;
	}





}