【java】java 读写文件

场景：JDK8  将上传的文件，保存到服务器

Java读写文件操作：

MultipartFile file

InputStream inputStream = file.getInputStream();

private void saveOldFile(String uid,String fileName,InputStream inputStream){

String filePath = getFilePath() + "/" + uid +fileName;

BufferedReader reader = null;

BufferedWriter writer = null;

try {

File file = new File(filePath);

reader = new BufferedReader(new InputStreamReader(inputStream));

writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file)));

String lineText = null;

while ((lineText = reader.readLine()) != null){

writer.write(lineText+FILE_CONTENT_SPLIT_MARK);

}

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}finally {

try {

writer.close();

reader.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

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