delimiteddatafile.java

这个是JSP应用开发详解(第3版)的全部源代码!绝对的真实,绝对有用!

//DelimitedDataFile.java bean文件源代码
//导入java包
import java.io.*;
import java.util.StringTokenizer;

public class DelimitedDataFile
{
	private String currentRecord = null;
	private BufferedReader file;
	private String path;
	private StringTokenizer token;
	//创建文件对象
	public DelimitedDataFile()
	{
		file = new BufferedReader(new InputStreamReader(System.in),1);
	}
	public DelimitedDataFile(String filePath) throws FileNotFoundException
	{
		path = filePath;
		file = new BufferedReader(new FileReader(path));
	}
	//设置文件路径
	public void setPath(String filePath)
	{
		path = filePath;
		try
		{
			file = new BufferedReader(new FileReader(path));
		}
		catch(FileNotFoundException e)
		{
			System.out.println("file not found");
		}
	}
	//得到文件路径
	public String getPath()
	{
		return path;
	}
	//关闭文件
	public void fileClose() throws IOException
	{
		file.close();
	}
	//读取下一行记录，若没有则返回-1
	public int nextRecord()
	{
		int returnInt = -1;
		try
		{
			currentRecord = file.readLine();
		}
		catch(IOException e)
		{
			System.out.println("readLine problem, terminating.");
		}
		
		if (currentRecord == null)
		{
			returnInt = -1;
		}
		else
		{
			token = new StringTokenizer(currentRecord);
			returnInt = token.countTokens();
		}
		return returnInt;
} 

	//以字符串的形式返回整个记录
	public String returnRecord()
	{
		return currentRecord;
	}
}