importjava.io.BufferedReader;importjava.io.FileInputStream;importjava.io.IOException;importjava.io.InputStream;importjava.io.InputStreamReader;publicclassReadFileContentExample{publicstaticvoidmain(String[]args)
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...
2. 读取文件内容 如果文件存在,我们可以继续读取文件的内容。我们可以使用Java的FileInputStream类来实现此步骤。下面是相应的代码片段: importjava.io.BufferedReader;importjava.io.FileInputStream;importjava.io.IOException;importjava.io.InputStreamReader;publicclassFileReader{publicstaticStringreadFileContent(Stringf...
()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....
FileInputStream in = new FileInputStream(file); in.read(filecontent); in.close(); ...
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...
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 ...
一、文件夹操作 1 引入类 FileflodeName=newFile("文件路径");// 光标放在File上 ctrl + 1 引入 ...
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 ...