This method ensures that the file is closed when all bytes have been read or an I/O error, or other runtime exception, is thrown. After reading all the bytes, we pass those bytes toStringclass constructor to create a new String. Reading file to byte array PathfilePath=Path.of("c:/tem...
在上面的示例代码中,readFileToString方法接受文件路径作为参数,并返回文件内容的字符串表示。我们使用BufferedReader逐行读取文件,将每一行添加到StringBuilder中。最后,我们将StringBuilder转换为字符串并返回。 要在main方法中调用readFileToString方法,您需要提供文件的实际路径。请将"path/to/your/file.txt"替换为您要读...
importjava.io.File;importjava.io.FileReader;importjava.io.IOException;publicclassFileToStringExample{publicstaticvoidmain(String[]args){Filefile=newFile("path/to/file.txt");FileReaderfileReader=null;try{fileReader=newFileReader(file);char[]charArray=newchar[(int)file.length()];fileReader.read(charArr...
importjava.io.BufferedReader;importjava.io.FileReader;importjava.io.IOException;publicclassReadFileToString{publicstaticvoidmain(String[]args){String filePath="c:/temp/data.txt";System.out.println(usingBufferedReader(filePath));}//Read file content into string with - using BufferedReader and FileRead...
Read 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 importjava.nio.file.Path; importjava.nio.file.Paths; importjava.nio.file.Files; importjava.io.IOException; publicclassMain { publicstaticvoidmain(String[] args) ...
@TestvoidtestReadFile4()throws IOException{String fileName="D:\data\test\newFile3.txt";// java 11 开始提供的方法,读取文件不能超过2G,与你的内存息息相关//String s = Files.readString(Paths.get(fileName));} 5.Files.readAllBytes()
StringBuffer sb=newStringBuffer(); FileUtils.readToBuffer(sb, filePath);returnsb.toString(); } } 还有看到一段代码,也差不多 packagecom.campu;importjava.io.BufferedInputStream;importjava.io.BufferedReader;importjava.io.File;importjava.io.FileInputStream;importjava.io.InputStreamReader;importjava.io...
FileReader(Filefile,Charsetcharset) Creates a newFileReader, given theFileto read and thecharset. FileReader(StringfileName) Creates a newFileReader, given the name of the file to read, using the platform'sdefault charset. FileReader(StringfileName,Charsetcharset) ...
private void readFile() throws IOException { try { StringBuilder sb = new StringBuilder(); String line; if (SDK_INT >= Build.VERSION_CODES.R) { inputStream = getContentResolver().openInputStream(selectedFileURI); bufferedReader = new BufferedReader(new InputStreamReader(inputStream)); } else...
public static void main(String[] args) throws Exception{ File file = new File("文件的路径"); FileInputStream fileInputStream = new FileInputStream(file); int size = fileInputStream.available(); byte[] buffer = new byte[size]; fileInputStream.read(buffer); ...