www.ndwl.net > jAvA如何将一个InputStrEAm写入文件啊?

jAvA如何将一个InputStrEAm写入文件啊?

java通过InputStream读取和写入文件操作实例代码 1. File to InputStream File file = new File("file.xml");InputStream inputStream = new FileInputStream(file); 2.InputStream to File InputStream inputStream = new FileInputStream("fil...

你应该问的是 为 file类构造一个节点流来输出或输入吧, File file = new File("D:/zj.txt"); InputStream is = new FileInputStream(file) is就可以从该file里读取数据了, int length = 0; byte[] b = new byte[200]; while(-1 != ( length = ...

java通过InputStream读取和写入文件操作实例代码 1. File to InputStream File file = new File("file.xml");InputStream inputStream = new FileInputStream(file); 2.InputStream to File InputStream inputStream = new FileInputStream("fil...

int len=-1; byte[] bt = new byte[2048]; //可以根据实际情况调整,建议使用1024,即每次读1KB while(len=(in.read(bt)) != -1) { os.write(bt,0,len); //建议不要直接用os.write(bt) } os.flush(); in.close(); os.close();

input和output是相对于你的内存而言,不是相对于java

File filein = new File("D://","Example1.txt");File fileout = new File("D://","Example1-1.txt");FileInputStream fis;try{ if(!filein.exists()){ filein.createNewFile(); } if(!fileout.exists()){ fileout.createNewFile(); } fis = new...

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; public class sort { private static List numList = new ArrayList(); private static S...

InputStream 是抽象类,FileInputStream是其一个具体的实现。 你可以强转成FileInputStream类型。当然如果它的实现必须得是FileInputStream的子类。比如: InputStream is = new SocketInputStream(plainSocketImpl );FileInputStream fis = (Fi...

java中实现字符流的写入写出使用BufferedReader和BufferedWriter来实现,具体事例代码如下: public class FileTest { public static void main(String[] args) { File file=new File("C:\\Users\\hp\\Desktop\\a.txt"); BufferedReader read=nu...

应该是。你看这个工具类就够用了。 public class ReadFromFile { /** * 以字节为单位读取文件,常用于读二进制文件,如图片、声音、影像等文件。 */ public static void readFileByBytes(String fileName) { File file = new File(fileName); In...

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