本文实例为大家分享了java利用SMB读取远程文件的具体代码，供大家参考，具体内容如下

package com.yss.test.FileReadWriter; 
 
import java.io.BufferedInputStream; 
import java.io.BufferedOutputStream; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.OutputStream; 
import java.net.MalformedURLException; 
 
import jcifs.smb.SmbFile; 
import jcifs.smb.SmbFileInputStream; 
import jcifs.smb.SmbFileOutputStream; 
 
public class RemoteAccessData { 
 
 /** 
  * @param args 
  * @throws IOException 
  */ 
 public static void main(String[] args) throws IOException { 
  smbGet1("smb://192.168.75.204/test/新建 文本文档.txt"); 
  smbGet("smb://192.168.75.204/test/新建 文本文档.txt","e:/"); 
 } 
 
 /** 
  * 方法一： 
  * 
  * @param remoteUrl 
  *   远程路径 smb://192.168.75.204/test/新建 文本文档.txt 
  * @throws IOException 
  */ 
 public static void smbGet1(String remoteUrl) throws IOException { 
  SmbFile smbFile = new SmbFile(remoteUrl); 
  int length = smbFile.getContentLength();// 得到文件的大小 
  byte buffer[] = new byte[length]; 
  SmbFileInputStream in = new SmbFileInputStream(smbFile); 
  // 建立smb文件输入流 
  while ((in.read(buffer)) != -1) { 
 
   System.out.write(buffer); 
   System.out.println(buffer.length); 
  } 
  in.close(); 
 } 
 
 // 从共享目录下载文件 
 /** 
  * 方法二： 
  * 路径格式：smb://192.168.75.204/test/新建 文本文档.txt 
  *    smb://username:password@192.168.0.77/test 
  * @param remoteUrl 
  *   远程路径 
  * @param localDir 
  *   要写入的本地路径 
  */ 
 public static void smbGet(String remoteUrl, String localDir) { 
  InputStream in = null; 
  OutputStream out = null; 
  try { 
   SmbFile remoteFile = new SmbFile(remoteUrl); 
   if (remoteFile == null) { 
    System.out.println("共享文件不存在"); 
    return; 
   } 
   String fileName = remoteFile.getName(); 
   File localFile = new File(localDir + File.separator + fileName); 
   in = new BufferedInputStream(new SmbFileInputStream(remoteFile)); 
   out = new BufferedOutputStream(new FileOutputStream(localFile)); 
   byte[] buffer = new byte[1024]; 
   while (in.read(buffer) != -1) { 
    out.write(buffer); 
    buffer = new byte[1024]; 
   } 
  } catch (Exception e) { 
   e.printStackTrace(); 
  } finally { 
   try { 
    out.close(); 
    in.close(); 
   } catch (IOException e) { 
    e.printStackTrace(); 
   } 
  } 
 } 
 
 // 向共享目录上传文件 
 public static void smbPut(String remoteUrl, String localFilePath) { 
  InputStream in = null; 
  OutputStream out = null; 
  try { 
   File localFile = new File(localFilePath); 
 
   String fileName = localFile.getName(); 
   SmbFile remoteFile = new SmbFile(remoteUrl + "/" + fileName); 
   in = new BufferedInputStream(new FileInputStream(localFile)); 
   out = new BufferedOutputStream(new SmbFileOutputStream(remoteFile)); 
   byte[] buffer = new byte[1024]; 
   while (in.read(buffer) != -1) { 
    out.write(buffer); 
    buffer = new byte[1024]; 
   } 
  } catch (Exception e) { 
   e.printStackTrace(); 
  } finally { 
   try { 
    out.close(); 
    in.close(); 
   } catch (IOException e) { 
    e.printStackTrace(); 
   } 
  } 
 } 
 
 // 远程url smb://192.168.0.77/test 
 // 如果需要用户名密码就这样： 
 // smb://username:password@192.168.0.77/test 
 
}