ASCII_CR = 13; // 回车符 List<String> content = new ArrayList<>(); try (FileChannel fileChannel = new RandomAccessFile(fileName, "r").getChannel()) { ByteBuffer byteBuffer = ByteBuffer.allocate(1024 * 100); byte[] lineByte; byte[] temp = new byte[0]; while (fileChannel.read(...
get(fileName)); String content = new String(bytes, StandardCharsets.UTF_8); System.out.println(content); } 6.经典管道流的方式 最后一种就是经典的管道流的方式 @Test void testReadFile6() throws IOException { String fileName = "D:\\data\\test\\newFile3.txt"; // 带缓冲的流读取,...
importjava.io.BufferedReader;importjava.io.FileInputStream;importjava.io.IOException;importjava.io.InputStream;importjava.io.InputStreamReader;publicclassReadFileContentExample{publicstaticvoidmain(String[]args){try{// 创建文件输入流InputStreaminputStream=newFileInputStream("example.txt");// 创建缓冲区...
接下来,我们可以定义一个方法来读取文件内容: publicStringreadFileContent(MultipartFilefile)throwsIOException{InputStreaminputStream=file.getInputStream();byte[]bytes=newbyte[(int)file.getSize()];inputStream.read(bytes);returnnewString(bytes);} 1. 2. 3. 4. 5. 6. 以上代码中,首先通过getInputStrea...
()throwsIOException{FileInputStreamfis=newFileInputStream("./template/hello.txt");InputStreamReaderisr=newInputStreamReader(fis,"UTF-8");char[]buffer=newchar[1024];intlen;while((len=isr.read(buffer))!=-1){Stringcontent=newString(buffer,0,len);System.out.println(content);}isr.close();fis....
void testReadFile1() throws IOException { //文件内容:Hello World|Hello Zimug String fileName = "D:\\data\\test\\newFile4.txt"; try (Scanner sc = new Scanner(neiavzVw FileReader(fileName))) { while (sc.hasNextLine()) { //按行读取字符串 ...
{fins=newFileInputStream(file_name);bytefile_content[]=newbyte[2*1024];intread_count=0;while((read_count=fins.read(file_content))>0){System.out.println(newString(file_content,0,read_count-1));}}catch(FileNotFoundExceptione){e.printStackTrace();}catch(IOExceptione){e.printStackTrace();...
var filePath = Paths.get(fileName); byte[] data = Files.readAllBytes(filePath); var content = new String(data); System.out.println(content); } The example reads all bytes from a file and passes them to theStringconstructor. Read text with Files.readString ...
FileOutputStream fo = new FileOutputStream(filePath); OutputStreamWriter out = new OutputStreamWriter(fo, "UTF-8"); out.write(fileContent); out.close(); 4、 // 写源文件 PrintStream print = null; try { print = new PrintStream(file.getPath() + "/" + proxy + ".java", "UTF-8")...
void testReadFile2() throws IOException { String fileName = "D:\\data\\test\\newFile.txt"; // 读取文件内容到Stream流中,按行读取 Stream<String> lines = Files.lines(Paths.get(fileName)); // 随机行顺序进行数据处理 lines.forEach(ele -> { ...