一个批量替换文件内容的小程序

package tyest;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;

public class FileOper {
	/**
	 * 读取并修改文件
	 * 
	 * @param filepath 文件路径
	 * @param reg	需替换内容
	 * @param conter	替换后内容
	 * @return
	 */
	public String modifyFile(File file,String reg,String conter){
		FileInputStream f=null;
		InputStreamReader isr=null;
		BufferedReader bf = null;
		StringBuffer newLineString = new StringBuffer();
		try {
			f = new FileInputStream(file);
			isr = new InputStreamReader(f,"utf-8");
			bf = new BufferedReader(isr);
			String lineString="";
			while((lineString=bf.readLine()) != null){
				if(lineString.contains(reg)){
					newLineString.append(lineString.replace(reg, conter));
					//newLineString=lineString.replace(text1, "../uilib");
				}else{
					newLineString.append(lineString);
				}
				newLineString.append("\r\n");
			}
			
			System.out.println(newLineString.toString());
			
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				bf.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			try {
				isr.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			try {
				f.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		return newLineString.toString();
	}
	
	/**
	 * 保存文件
	 * @param filepath
	 * @param content
	 */
	public void saveFile(File file,String content){

		FileOutputStream fos=null;
		OutputStreamWriter ow=null;
		try {
			fos = new FileOutputStream(file);
			ow= new OutputStreamWriter(fos,"utf-8");
			try {
				ow.write(content);
				ow.flush();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			try {
				ow.close();
				fos.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
		
		
		
	}
	
	public static void main(String[] args) throws IOException{
		FileOper fileOper = new FileOper();
		File dir = new File("D:\\WorkShop\\solPage1\\page\\");
		if(!dir.isDirectory()){
			System.out.println("不是目录！");
			return;
		}
		File[] f_ary=dir.listFiles();
		if(f_ary.length>0){
			for(File f:f_ary){
				String filename = f.getName();
				String filetype=filename.split("\\.")[1];
				
				if("html".equals(filetype)){
					String content=fileOper.modifyFile(f, "http://ssosol.sinosure.com.cn/esellc", "../uilib");
					fileOper.saveFile(f, content);
				}else{
					continue;
				}
			}
		}else{
			System.out.println("没有文件");
		}
		

		
	}

}