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(...
public static String txt2String(String path){ String fileContent = ""; try { File f = new File(path); if(f.isFile()&&f.exists()) { InputStreamReader read = new InputStreamReader(new FileInputStream(f),"gbk"); BufferedReader reader=new BufferedReader(read); String line; while ((li...
intbytesRead;while((bytesRead=fis.read(buffer))!=-1){bos.write(buffer,0,bytesRead);} 1. 2. 3. 4. 这里使用了一个while循环,每次从FileInputStream读取一部分数据到缓冲区,并将数据写入ByteArrayOutputStream。 步骤6:获取缓冲区的内容 byte[]content=bos.toByteArray(); 1. 使用ByteArrayOutputStream...
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...
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 代码语言:javascript 代码运行次数:0 运行 AI代码解释 @Test void testReadFile6() throws IOException { String fileName = "D:\data\test\newFile3.txt"; // 带缓冲的流读取,默认缓冲区8k try (BufferedReader br = new ...
FileInputStream in = new FileInputStream(file); in.read(filecontent); in.close(); ...
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 ...
读取publicstaticStringreadText()throws IOException{String pathname="C:\\dd.txt";// 绝对路径或相对路径都可以,这里是绝对路径,写入文件时演示相对路径String fileContent="";String second="";File f=newFile(pathname);if(f.isFile()&&f.exists()){InputStreamReader read=newInputStreamReader(newFileInput...
()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....
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")...