filestream.java

企业级的即时通软件。。java语言写的 这是客户端部份。

package edu.sccp.chat.tools;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

import edu.sccp.chat.frame.AdminChat;

public class FileStream {

	public static void inputFile(File file) throws IOException//读取聊天文件内容，文本域显示
	{
		try {
			FileReader fr=new FileReader(file);
			BufferedReader br=new BufferedReader(fr);
			String line=br.readLine();
			
			while(line!=null)
			{
				AdminChat.chatText.append(line+"\n");
				line=br.readLine();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	public static void writeFile(String file,String str)
	{
		File files=new File("com/chatfile/"+file+".txt");
		if(files.exists())
		{
			try {
				FileWriter fw=new FileWriter(files,true);
				BufferedWriter bw=new BufferedWriter(fw);
				bw.flush();
				bw.write(str);
				bw.flush();
				bw.newLine();
				bw.flush();
				fw.close();
				bw.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}else
		{
			try {
				
				files.createNewFile();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			try {
				FileWriter fw=new FileWriter(files,true);
				BufferedWriter bw=new BufferedWriter(fw);
				bw.flush();
				bw.write(str);
				bw.flush();
				bw.newLine();
				bw.flush();
				fw.close();
				bw.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}