10hutool实战:FileUtil 文件工具类(获取输出流)

    BufferedOutputStream bufferedOutputStream = null;
    try {
      //创建流 src文件如果不存在，程序会帮忙创建
      bufferedOutputStream = FileUtil.getOutputStream("C:\\Users\\Administrator\\Desktop\\xuzhu\\getOutputStreamTest1.txt");
      String str = "getOutputStreamTest内容1 \ngetOutputStreamTest内容2";
      byte[] sb = str.getBytes();
      bufferedOutputStream.write(sb);
      bufferedOutputStream.flush();
    } catch (IOException e) {
      //抛出一个运行时异常(直接停止掉程序)
      throw new RuntimeException("运行时异常",e);
    }finally {
      IoUtil.close(bufferedOutputStream);
    }

    BufferedWriter bufferedWriter = null;
    try {
      //是否追加
      Boolean isAppend = false;
      //创建流
      bufferedWriter = FileUtil.getWriter("C:\\Users\\Administrator\\Desktop\\xuzhu\\getWriterTest.txt",CharsetUtil.UTF_8,isAppend);
      String str = "getWriterTest1 \ngetWriterTest2";
      bufferedWriter.write(str);
      bufferedWriter.flush();
    } catch (IOException e) {
      //抛出一个运行时异常(直接停止掉程序)
      throw new RuntimeException("运行时异常",e);
    }finally {
      IoUtil.close(bufferedWriter);
    }

    BufferedWriter bufferedWriter = null;
    try {
      //是否追加
      Boolean isAppend = true;
      //创建流
      bufferedWriter = FileUtil.getWriter("C:\\Users\\Administrator\\Desktop\\xuzhu\\getWriterTest.txt",CharsetUtil.CHARSET_UTF_8,isAppend);
      String str = "getWriterTest1 \ngetWriterTest2";
      bufferedWriter.write(str);
      bufferedWriter.flush();
    } catch (IOException e) {
      //抛出一个运行时异常(直接停止掉程序)
      throw new RuntimeException("运行时异常",e);
    }finally {
      IoUtil.close(bufferedWriter);
    }

    PrintWriter printWriter = null;
    try {
      //是否追加
      Boolean isAppend = false;
      //创建流
      printWriter = FileUtil.getPrintWriter("C:\\Users\\Administrator\\Desktop\\xuzhu\\getPrintWriterTest1.txt",CharsetUtil.UTF_8,isAppend);
      printWriter.write("小虚竹");
      printWriter.append(" 你真帅~");
      //写入时换行
      printWriter.println("我稀罕你");
      printWriter.write("我爱你");
      printWriter.flush();
    } catch (IORuntimeException e) {
      //抛出一个运行时异常(直接停止掉程序)
      throw new RuntimeException("运行时异常",e);
    }finally {
      IoUtil.close(printWriter);
    }

    PrintWriter printWriter = null;
    try {
      //是否追加
      Boolean isAppend = false;
      //创建流
      printWriter = FileUtil.getPrintWriter("C:\\Users\\Administrator\\Desktop\\xuzhu\\getPrintWriterTest1.txt",CharsetUtil.CHARSET_UTF_8,isAppend);
      printWriter.write("小虚竹");
      printWriter.append(" 你真帅~");
      //写入时换行
      printWriter.println("我稀罕你");
      printWriter.write("我爱你");
      printWriter.flush();
    } catch (IORuntimeException e) {
      //抛出一个运行时异常(直接停止掉程序)
      throw new RuntimeException("运行时异常",e);
    }finally {
      IoUtil.close(printWriter);
    }