Java讀取檔案

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用慣了python在使用java,在讀取檔案這真心覺得麻煩,寫了一小段代碼對java的讀寫進行了簡單的封裝,總算舒服了一點:

package seleniumTest;import java.io.IOException;import java.io.File;import java.io.FileReader;import java.io.FileWriter;import java.io.BufferedReader;import java.util.List;import java.util.ArrayList;public class MyFile {    public File f;    public FileWriter fw;    public FileReader fr;    MyFile(String path){        f = new File(path);        if(f.exists() != true){            try{                f.createNewFile();            }catch(Exception e){                e.printStackTrace();            }        }        this.createWriter();        this.createReader();    }        private void createWriter(){        try {            fw = new FileWriter(f, true);        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }        private void createReader(){        try {            fr = new FileReader(f);        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }        public FileWriter getWriter(){        return fw;    }        public BufferedReader getReader(){        BufferedReader br = new BufferedReader(fr);        return br;    }        public static void appendWriter(String path, List<String> lines){        MyFile tmp = new MyFile(path);        tmp.createWriter();        FileWriter fw = tmp.getWriter();        for(String line: lines){            try {                fw.write(String.format("%s%s", line.trim(), "\r\n"));            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        }        try {            fw.close();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }        public static List<String> myReader(String path){        List<String> result = new ArrayList<String>();        MyFile tmp = new MyFile(path);        tmp.createWriter();        BufferedReader fr = tmp.getReader();        String s;        try {            while((s = fr.readLine()) != null){                result.add(s);            }        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        return result;    }}
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Java讀取檔案

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