java代码筛选文件

package org.maoxiao.gf;

import com.sun.scenario.effect.impl.sw.sse.SSEBlend_SRC_OUTPeer;

import java.io.*;
import java.util.HashMap;
import java.util.Map;

public class Genfiel {
    public static void main(String[] args) {
        String inputString = "E:\\genFile\\input";

        String outputString = "E:\\genFile\\output\\lauwithss.log";
        File inputFile = new File(inputString);
        File outputFile = new File(outputString);
        if(outputFile.exists()){
            outputFile.delete();
        }
        genFile(inputFile,outputFile);


    }

    private static void genFile(File inputFile, File outputFile) {
        if(inputFile.isDirectory()){
            for(File file : inputFile.listFiles()){
                genFile(file,outputFile);
            }
        }else{
            PrintWriter pw = null;
            try {
                pw = new PrintWriter(outputFile,"GBK");
                BufferedReader br = new BufferedReader( new InputStreamReader(new FileInputStream(inputFile),"GBK"));
                String line ;
                while((line = br.readLine())!=null){
                    if(line.contains("launch:entity")&&line.contains("ss")){
//                        continue;
//                    }else{
                        pw.append(line);
                        pw.append("\n");
                    }

                }
                pw.flush();
            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                pw.close();
            }
        }
    }




    public static String getEncoding(String str) {
        String encode = "GB2312";
        try {
            if (str.equals(new String(str.getBytes(encode), encode))) {
                String s = encode;
                return s;
            }
        } catch (Exception exception) {
        }
        encode = "ISO-8859-1";
        try {
            if (str.equals(new String(str.getBytes(encode), encode))) {
                String s1 = encode;
                return s1;
            }
        } catch (Exception exception1) {
        }
        encode = "UTF-8";
        try {
            if (str.equals(new String(str.getBytes(encode), encode))) {
                String s2 = encode;
                return s2;
            }
        } catch (Exception exception2) {
        }
        encode = "GBK";
        try {
            if (str.equals(new String(str.getBytes(encode), encode))) {
                String s3 = encode;
                return s3;
            }
        } catch (Exception exception3) {
        }
        return "";
    }
}