userlogin.java

基于swing的java模拟的c/s服务模式

package service;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 * @author lieping
 * 
 */
public class userlogin {
	File file = FileServeConstants.ftpuser;
	public userlogin() {

	}

	public boolean checkUser(String user, String password) {
		boolean flag = false;
		File f = file;
		BufferedReader in = null;
		try {
			in = new BufferedReader(new InputStreamReader(
					new FileInputStream(f)));
		} catch (FileNotFoundException e) {
			System.out.println("file not found" + f.getAbsolutePath());
		}
		String line = "";
		String username = user;
		String userpass = password;
		try {
			line = in.readLine();
		} catch (IOException e) {
			e.printStackTrace();
		}
		while (line != null) {
			if (line
					.substring(line.indexOf("@") + 1, line.lastIndexOf("@") - 9)
					.equals(username)
					&& line.substring(line.lastIndexOf("@") + 1).equals(
							userpass)) {
				flag = true;
				break;
			}
			try {
				line = in.readLine();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return flag;
	}

}