importjava.io.*;publicclassReadFileAsStreamExample{publicstaticvoidmain(String[]args){Filefile=newFile("文件路径");try{FileInputStreamfis=newFileInputStream(file);BufferedInputStreambis=newBufferedInputStream(fis);byte[]buffer=newbyte[1024];intbytesRead;while((bytesRead=bis.read(buffer))!=-1){// ...
FileInputStream FileOutputStream PipedInputStream PipedOutputStream ByteArrayInputStream ByteArrayOutputStream FilterInputStream FilterOutputStream DataInputStream DataOutputStream BufferedInputStream BufferedOutputStream 字符流: 从Reader和Writer派生出来的一系列类,以16位的Unicode码表示的字符为基本处理单位 InputStread...
方法一:使用 FileInputStream 最常见的将 Java 文件转换为 InputStream 的方法是使用 FileInputStream 类。该类提供了一些方法来读取文件的内容,并返回 InputStream 对象。 以下是一个示例代码,展示如何使用 FileInputStream 读取文件并返回 InputStream 对象: importjava.io.*;publicclassFileToInputStreamExample{publi...
Creates aFileInputStreamby opening a connection to an actual file, the file named by the path namenamein the file system. A newFileDescriptorobject is created to represent this file connection. First, if there is a security manager, itscheckReadmethod is called with thenameargument as its arg...
publicvoidreadFile()throwsIOException {// 创建一个FileInputStream对象:InputStreaminput=newFileInputStream("src/readme.txt");for(;;) {intn=input.read();// 反复调用read()方法,直到返回-1if(n == -1) {break; } System.out.println(n);// 打印byte的值} ...
In a while loop we read a character from aFileInputStreamuntil thereadmethod returns -1. If the file is a text file and contains non-latin characters, we wrap theFileInputStreaminto anInputStreamReader. TheInputStreamReaderaccepts the character encoding as the second parameter. ...
创建一个FileInputStream对象并指定要读取的文件。 使用read()方法读取文件的字节。 使用close()方法关闭流,释放资源。 代码示例 以下是一个简单的Java程序,用于从指定文件中读取字节并打印到控制台: importjava.io.FileInputStream;importjava.io.IOException;publicclassByteStreamReader{publicstaticvoidmain(String[]ar...
1、是文件： FileInputStream, FileOutputStream, FileReader, FileWriter 2、是byte[]：ByteArrayInputStream, ByteArrayOutputStream 3、是Char[]: CharArrayReader, CharArrayWriter 4、是String: StringBufferInputStream, StringReader, StringWriter 5、网络数据流：InputStream, OutputStream, Reader, Writer...
final InputStream inputStream = jarFile.getInputStream(jarEntry); // 工具类是 hutool System.out.println(IoUtil.read(inputStream, StandardCharsets.UTF_8)); IoUtil.close(inputStream); 获取相对路径的内容 File.getAbsolutePath查看源码可以发现,相对路径其实就是在前面拼接了System.getProperty("user.dir...
Read text file with InputStreamReader InputStreamReaderis a bridge from byte streams to character streams. It reads bytes and decodes them into characters using a specified charset. Main.java import java.io.BufferedReader; import java.io.FileInputStream; ...