java检测文件内是否包含指定内容

package com.test;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;


/**
 * 检测client文件是否包含指定名称
 * @author Wdnncey
 *
 */

public class Baohan {
    
    public static void main(String[] args) throws Exception {
        readF1("e:\test.txt");        
//        readF2("e:\test.txt");
    }
    
    public static final void readF1(String filePath) throws IOException {  
        BufferedReader br = new BufferedReader(new InputStreamReader(  
                new FileInputStream(filePath)));  
  
        for (String line = br.readLine(); line != null; line = br.readLine()) { 
            System.out.println(line);  
        }  
        br.close();  
  
    }  
  
    public static final void readF2(String filePath) throws IOException {  
        FileReader fr = new FileReader(filePath);  
        BufferedReader bufferedreader = new BufferedReader(fr);  
        String instring;  
        while ((instring = bufferedreader.readLine().trim()) != null) {  
            if (0 != instring.length()) {  
                System.out.println(instring);  
            }  
        }  
        fr.close();  
    }  

}