将字符串写入文件的五种方法

妖狐艹你老母 2024-03-26 16:39 81阅读 0赞

public void WriteStringToFile(String filePath) {
        try {
            File file = new File(filePath);
            PrintStream ps = new PrintStream(new FileOutputStream(file));
            ps.println("我是程序员");// 往文件里写入字符串
            ps.append("我是程序猿");// 在已有的基础上添加字符串
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    public void WriteStringToFile2(String filePath) {
        try {
            FileWriter fw = new FileWriter(filePath, true);
            BufferedWriter bw = new BufferedWriter(fw);
            bw.append("我是程序猿");
            bw.write("我是");// 往已有的文件上添加字符串
            bw.write("程序猿\\n ");
            bw.close();
            fw.close();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    public void WriteStringToFile3(String filePath) {
        try {
            PrintWriter pw = new PrintWriter(new FileWriter(filePath));
            pw.println("abc ");
            pw.println("def ");
            pw.println("hef ");
            pw.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    public void WriteStringToFile4(String filePath) {
        try {
            RandomAccessFile rf = new RandomAccessFile(filePath, "rw");
            rf.writeBytes("op\\r\\n");
            rf.writeBytes("app\\r\\n");
            rf.writeBytes("hijklllll");
            rf.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void WriteStringToFile5(String filePath) {
        try {
            FileOutputStream fos = new FileOutputStream(filePath);
            String s = "http://www.jb51.netl";
            fos.write(s.getBytes());
            fos.close();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }