librarymanager.java

运用java编写图书馆管理系统

			{
				fileWriter.write(String.valueOf(newBook.getNO())+" "+newBook.getName()+" "+newBook.getSort()+" "+
						newBook.getHolder()+" "+newBook.getDeadline()+" "+newBook.getISBN()+" "+newBook.getAuthor()+" "+
						newBook.getPublisher()+" "+String.valueOf(newBook.getPrice())+" "+newBook.getPublicTime()+" "+
						"\r\n");
				fileWriter.flush();
			}
			}	
		fileWriter.close();
		}catch (IOException ie) {
			System.err.println("error:" + ie.getMessage());
			return false;
			}
		return true;
	}
	
	public Boolean bookBorrow(int num,String ID){     //借书
		String temp,r,temp1,temp2,temp3,temp4,temp5,temp6,temp7,temp8,temp9,temp0;
		int a,b,c;
		Book borrow =new Book();
		Boolean flagFind=false;
		try{
		FileReader fileReader = new FileReader("Library.txt");
		BufferedReader bufferReader = new BufferedReader(fileReader);
		Writer fileWriter = new FileWriter("temp.txt", false);
		while ((r = bufferReader.readLine()) != null) {
			StringTokenizer toKen_Student = new StringTokenizer(r);
			temp0=toKen_Student.nextToken();
			temp1=toKen_Student.nextToken();
			temp2=toKen_Student.nextToken();
			temp3=toKen_Student.nextToken();
			temp4=toKen_Student.nextToken();
			temp5=toKen_Student.nextToken();
			temp6=toKen_Student.nextToken();
			temp7=toKen_Student.nextToken();
			temp8=toKen_Student.nextToken();
			temp9=toKen_Student.nextToken();
			tempBook.setNO(Integer.parseInt(temp0));
			tempBook.setName(temp1);
			tempBook.setSort(temp2);
			tempBook.setHolder(temp3);
			tempBook.setDeadline(temp4);
			tempBook.setISBN(temp5);
			tempBook.setAuthor(temp6);
			tempBook.setPublisher(temp7);
			tempBook.setPrice(Double.parseDouble(temp8));
			tempBook.setPublicTime(temp9);
					
			if(tempBook.getNO() == num ){
				if(tempBook.getHolder().equals("Library")){
				flagFind = true;
				tempBook.setHolder(ID);
				
			GregorianCalendar gc = new GregorianCalendar();
			gc.add(Calendar.DAY_OF_MONTH,14);
			a = gc.get(Calendar.YEAR);
			b = gc.get(Calendar.MONTH);
			c = gc.get(Calendar.DATE);
			temp = String.valueOf(a)+"-"+String.valueOf(b+1)
			+"-"+String.valueOf(c);// 格式化时间记录方式
			
			tempBook.setDeadline(temp);
			
			borrow.setNO(Integer.parseInt(temp0));
			borrow.setName(temp1);
			borrow.setSort(temp2);
			borrow.setHolder(ID);
			borrow.setDeadline(temp);
			borrow.setISBN(temp5);
			borrow.setAuthor(temp6);
			borrow.setPublisher(temp7);
			borrow.setPrice(Double.parseDouble(temp8));
			borrow.setPublicTime(temp9);
			}
			}
			fileWriter.write(String.valueOf(tempBook.getNO())+" "+tempBook.getName()+" "+tempBook.getSort()+" "+
					tempBook.getHolder()+" "+tempBook.getDeadline()+" "+tempBook.getISBN()+" "+tempBook.getAuthor()+" "+
					tempBook.getPublisher()+" "+String.valueOf(tempBook.getPrice())+" "+tempBook.getPublicTime()+" "+
					"\r\n");
			fileWriter.flush();
		}
		fileWriter.close();
		if(flagFind){
		fileReader = new FileReader("temp.txt");
		bufferReader = new BufferedReader(fileReader);
		fileWriter = new FileWriter("Library.txt", false);
		while ((r = bufferReader.readLine()) != null) {
			StringTokenizer toKen_Student = new StringTokenizer(r);
			temp0=toKen_Student.nextToken();
			temp1=toKen_Student.nextToken();
			temp2=toKen_Student.nextToken();
			temp3=toKen_Student.nextToken();
			temp4=toKen_Student.nextToken();
			temp5=toKen_Student.nextToken();
			temp6=toKen_Student.nextToken();
			temp7=toKen_Student.nextToken();
			temp8=toKen_Student.nextToken();
			temp9=toKen_Student.nextToken();
			tempBook.setNO(Integer.parseInt(temp0));
			tempBook.setName(temp1);
			tempBook.setSort(temp2);
			tempBook.setHolder(temp3);
			tempBook.setDeadline(temp4);
			tempBook.setISBN(temp5);
			tempBook.setAuthor(temp6);
			tempBook.setPublisher(temp7);
			tempBook.setPrice(Double.parseDouble(temp8));
			tempBook.setPublicTime(temp9);
					
			fileWriter.write(String.valueOf(tempBook.getNO())+" "+tempBook.getName()+" "+tempBook.getSort()+" "+
					tempBook.getHolder()+" "+tempBook.getDeadline()+" "+tempBook.getISBN()+" "+tempBook.getAuthor()+" "+
					tempBook.getPublisher()+" "+String.valueOf(tempBook.getPrice())+" "+tempBook.getPublicTime()+" "+
					"\r\n");
			fileWriter.flush();
		}
		fileWriter.close();
			fileWriter = new FileWriter(ID+"_borrow.txt", true);		
			fileWriter.write(String.valueOf(borrow.getNO())+" "+borrow.getName()+" "+borrow.getSort()+" "+
					borrow.getHolder()+" "+borrow.getDeadline()+" "+borrow.getISBN()+" "+borrow.getAuthor()+" "+
					borrow.getPublisher()+" "+String.valueOf(borrow.getPrice())+" "+borrow.getPublicTime()+" "+
					"\r\n");
			fileWriter.flush();
			fileWriter.close();
		}
		else{
			return false;
		}
		}catch (IOException ie) {
			System.err.println("error:" + ie.getMessage());
			}
		return true;
	}
	
	public Boolean bookReturn(int num,String ID){     //借书
		String temp,r,temp1,temp2,temp3,temp4,temp5,temp6,temp7,temp8,temp9,temp0;
		int a,b,c;
		Boolean flagFind=false;
		try{
		FileReader fileReader = new FileReader("Library.txt");
		BufferedReader bufferReader = new BufferedReader(fileReader);
		Writer fileWriter = new FileWriter("temp.txt", false);
		while ((r = bufferReader.readLine()) != null) {
			StringTokenizer toKen_Student = new StringTokenizer(r);
			temp0=toKen_Student.nextToken();
			temp1=toKen_Student.nextToken();
			temp2=toKen_Student.nextToken();
			temp3=toKen_Student.nextToken();
			temp4=toKen_Student.nextToken();
			temp5=toKen_Student.nextToken();
			temp6=toKen_Student.nextToken();
			temp7=toKen_Student.nextToken();
			temp8=toKen_Student.nextToken();
			temp9=toKen_Student.nextToken();
			tempBook.setNO(Integer.parseInt(temp0));
			tempBook.setName(temp1);
			tempBook.setSort(temp2);
			tempBook.setHolder(temp3);
			tempBook.setDeadline(temp4);
			tempBook.setISBN(temp5);
			tempBook.setAuthor(temp6);
			tempBook.setPublisher(temp7);
			tempBook.setPrice(Double.parseDouble(temp8));
			tempBook.setPublicTime(temp9);
					
			if(tempBook.getNO() == num ){
				if(tempBook.getHolder().equals(ID)){
				flagFind = true;
				tempBook.setHolder("Library");
				
			GregorianCalendar gc = new GregorianCalendar();
			a = gc.get(Calendar.YEAR);
			b = gc.get(Calendar.MONTH);
			c = gc.get(Calendar.DATE);
			temp = String.valueOf(a)+"-"+String.valueOf(b+1)
			+"-"+String.valueOf(c);// 格式化时间记录方式
			
			tempBook.setDeadline(temp);
			}
			}
			fileWriter.write(String.valueOf(tempBook.getNO())+" "+tempBook.getName()+" "+tempBook.getSort()+" "+
					tempBook.getHolder()+" "+tempBook.getDeadline()+" "+tempBook.getISBN()+" "+tempBook.getAuthor()+" "+
					tempBook.getPublisher()+" "+String.valueOf(tempBook.getPrice())+" "+tempBook.getPublicTime()+" "+
					"\r\n");
			fileWriter.flush();
			}
		fileWriter.close();
		if(flagFind){
		fileReader = new FileReader("temp.txt");
		bufferReader = new BufferedReader(fileReader);
		fileWriter = new FileWriter("Library.txt", false);
		while ((r = bufferReader.readLine()) != null) {
			StringTokenizer toKen_Student = new StringTokenizer(r);
			temp0=toKen_Student.nextToken();
			temp1=toKen_Student.nextToken();
			temp2=toKen_Student.nextToken();
			temp3=toKen_Student.nextToken();
			temp4=toKen_Student.nextToken();
			temp5=toKen_Student.nextToken();
			temp6=toKen_Student.nextToken();
			temp7=toKen_Student.nextToken();
			temp8=toKen_Student.nextToken();
			temp9=toKen_Student.nextToken();
			tempBook.setNO(Integer.parseInt(temp0));
			tempBook.setName(temp1);
			tempBook.setSort(temp2);
			tempBook.setHolder(temp3);
			tempBook.setDeadline(temp4);
			tempBook.setISBN(temp5);
			tempBook.setAuthor(temp6);
			tempBook.setPublisher(temp7);
			tempBook.setPrice(Double.parseDouble(temp8));
			tempBook.setPublicTime(temp9);
					
			fileWriter.write(String.valueOf(tempBook.getNO())+" "+tempBook.getName()+" "+tempBook.getSort()+" "+
					tempBook.getHolder()+" "+tempBook.getDeadline()+" "+tempBook.getISBN()+" "+tempBook.getAuthor()+" "+
					tempBook.getPublisher()+" "+String.valueOf(tempBook.getPrice())+" "+tempBook.getPublicTime()+" "+
					"\r\n");
			fileWriter.flush();
		}
		fileWriter.close();
		
		fileReader = new FileReader(ID+"_borrow.txt");
		bufferReader = new BufferedReader(fileReader);
		fileWriter = new FileWriter("temp.txt", false);
		while ((r = bufferReader.readLine()) != null) {
			StringTokenizer toKen_Student = new StringTokenizer(r);
			temp0=toKen_Student.nextToken();
			temp1=toKen_Student.nextToken();
			temp2=toKen_Student.nextToken();
			temp3=toKen_Student.nextToken();
			temp4=toKen_Student.nextToken();
			temp5=toKen_Student.nextToken();
			temp6=toKen_Student.nextToken();
			temp7=toKen_Student.nextToken();
			temp8=toKen_Student.nextToken();
			temp9=toKen_Student.nextToken();
			tempBook.setNO(Integer.parseInt(temp0));
			tempBook.setName(temp1);
			tempBook.setSort(temp2);
			tempBook.setHolder(temp3);
			tempBook.setDeadline(temp4);
			tempBook.setISBN(temp5);
			tempBook.setAuthor(temp6);
			tempBook.setPublisher(temp7);
			tempBook.setPrice(Double.parseDouble(temp8));
			tempBook.setPublicTime(temp9);
					
			if(tempBook.getNO() == num){
				flagFind = true;
			}
			else{
			fileWriter.write(String.valueOf(tempBook.getNO())+" "+tempBook.getName()+" "+tempBook.getSort()+" "+
					tempBook.getHolder()+" "+tempBook.getDeadline()+" "+tempBook.getISBN()+" "+tempBook.getAuthor()+" "+
					tempBook.getPublisher()+" "+String.valueOf(tempBook.getPrice())+" "+tempBook.getPublicTime()+" "+
					"\r\n");
			fileWriter.flush();
				}
			}
		fileWriter.close();
		
		fileReader = new FileReader("temp.txt");
		bufferReader = new BufferedReader(fileReader);
		fileWriter = new FileWriter(ID+"_borrow.txt", false);
		while ((r = bufferReader.readLine()) != null) {
			StringTokenizer toKen_Student = new StringTokenizer(r);
			temp0=toKen_Student.nextToken();
			temp1=toKen_Student.nextToken();
			temp2=toKen_Student.nextToken();
			temp3=toKen_Student.nextToken();
			temp4=toKen_Student.nextToken();
			temp5=toKen_Student.nextToken();
			temp6=toKen_Student.nextToken();
			temp7=toKen_Student.nextToken();
			temp8=toKen_Student.nextToken();
			temp9=toKen_Student.nextToken();
			tempBook.setNO(Integer.parseInt(temp0));
			tempBook.setName(temp1);
			tempBook.setSort(temp2);
			tempBook.setHolder(temp3);
			tempBook.setDeadline(temp4);
			tempBook.setISBN(temp5);
			tempBook.setAuthor(temp6);
			tempBook.setPublisher(temp7);
			tempBook.setPrice(Double.parseDouble(temp8));
			tempBook.setPublicTime(temp9);
					
			fileWriter.write(String.valueOf(tempBook.getNO())+" "+tempBook.getName()+" "+tempBook.getSort()+" "+
					tempBook.getHolder()+" "+tempBook.getDeadline()+" "+tempBook.getISBN()+" "+tempBook.getAuthor()+" "+
					tempBook.getPublisher()+" "+String.valueOf(tempBook.getPrice())+" "+tempBook.getPublicTime()+" "+
					"\r\n");
			fileWriter.flush();
		}
		
		fileWriter.close();
		}
		else{
			return false;
		}
		}catch (IOException ie) {
			System.err.println("error:" + ie.getMessage());
			}
		return true;
	}
	
public Boolean renew(int num,String ID){		 //续借
		String temp,r,temp1,temp2,temp3,temp4,temp5,temp6,temp7,temp8,temp9,temp0;
		int a,b,c;