SMB实现共享文件（上传、下载）

来源：互联网发布：github windows 离线编辑：程序博客网时间：2024/05/21 07:08

前提：

（1）在文件服务器共享文件夹，设置权限（特定某个用户可以访问）。

（2）配置WEB-INF/classess/ftp.properties文件。

<span style="color:#333333;">//1 FTP , 2 FileSystem ,3 smb uploadfile.upload.type=3#FTP server ftp.ip=172.16.5.158ftp.port=21ftp.username=jcftp.password=123456ftp.url=/jmykt/file/ftp.jsp?f=#File upload upload.path=d\:\\tempupload.url=/tbsm-web/file/res.jsp?f=#smb upload #smb.upload.path=smb://test:123@192.168.20.32/temp/smb.upload.path=smb://Administrator:trustel@192.168.200.160/tbsmSmb/smb.upload.url=/mytest/file/smb.jsp?f=

注释：smb.upload.path是文件上传路径，格式是smb://用户名:密码@IP/共享文件夹名称/

smb.upload.url是显示的时候用到，比如图片显示。

（3）导入Jar包jcifs-1.3.16.jar。

一、上传文件

（1）JSP页面上传：

<form action="<%=request.getContextPath() %>/good/smbUploadFile.action" name="form1" method="post"  theme="simple" enctype="multipart/form-data" >       SMB上传文件：<input type="file" name="upload" size="30"/><input type="submit" value="上 传" /></form>

（2）Action：

// 基于SMB协议的文件上传；private File upload;private String uploadContentType;private String uploadFileName;public File getUpload() {return upload;}public void setUpload(File upload) {this.upload = upload;}public String getUploadContentType() {return uploadContentType;}public void setUploadContentType(String uploadContentType) {this.uploadContentType = uploadContentType;}public String getUploadFileName() {return uploadFileName;}public void setUploadFileName(String uploadFileName) {this.uploadFileName = uploadFileName;}public String smbUploadFile() {HttpServletRequest request=ServletActionContext.getRequest();try {  if(uploadFileName!=null&&!uploadFileName.equals("")){String fileUrl=FileUploadFactory.getFileUpload().upload(upload,"pic", uploadFileName);request.setAttribute("fileUrl", fileUrl);  }  } catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}return SUCCESS;}

（3）业务代码：

FileUploadFactory.java

package com.trustel.common.file;import java.io.IOException;import java.io.InputStream;import java.util.Properties;public class FileUploadFactory {static String CONFIG_FILE_NAME = "/ftp.properties";/** * 获得文件上传的对象 * @return * @throws IOException  */public static IFileUpload getFileUpload() throws IOException{InputStream in = FileUploadFactory.class.getClassLoader().getResourceAsStream(CONFIG_FILE_NAME);if (in == null){in = FileUploadFactory.class.getClass().getResourceAsStream(CONFIG_FILE_NAME);}Properties p = new Properties();p.load(in);int FILE_UPLOAD_TYPE = Integer.parseInt(p.getProperty("file.upload.type").trim());IFileUpload upload = null;switch (FILE_UPLOAD_TYPE) {case IFileUpload.FILE_UPLOAD_TYPE_FTP://upload = new FTPFileUpload();break;case IFileUpload.FILE_UPLOAD_TYPE_FILE://upload = new LocalFileUpload();break;case IFileUpload.FILE_UPLOAD_TYPE_SMB:upload = new SMBFileUpload();break;}upload.setProperties(p);return upload;}/** * 获取显示URL路径； * @return * @throws IOException */public static String getUploadURL() throws IOException{InputStream in = FileUploadFactory.class.getClassLoader().getResourceAsStream(CONFIG_FILE_NAME);if (in == null){in = FileUploadFactory.class.getClass().getResourceAsStream(CONFIG_FILE_NAME);}Properties p = new Properties();p.load(in);int FILE_UPLOAD_TYPE = Integer.parseInt(p.getProperty("file.upload.type").trim());if(FILE_UPLOAD_TYPE==3){  return p.getProperty("smb.upload.url").trim();}else{  return p.getProperty("upload.url").trim();}}/** * 获取上传远程服务器的路径； * @return * @throws IOException */public static String getUploadPath() throws IOException{InputStream in = FileUploadFactory.class.getClassLoader().getResourceAsStream(CONFIG_FILE_NAME);if (in == null){in = FileUploadFactory.class.getClass().getResourceAsStream(CONFIG_FILE_NAME);}Properties p = new Properties();p.load(in);int FILE_UPLOAD_TYPE = Integer.parseInt(p.getProperty("file.upload.type").trim());if(FILE_UPLOAD_TYPE==3){  return p.getProperty("smb.upload.path").trim();}else{  return p.getProperty("upload.path").trim();}}}

SMBFileUpload.java

package com.trustel.common.file;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Properties;import jcifs.smb.SmbFile;import jcifs.smb.SmbFileOutputStream;/** * 通过网络共享的方式上传文件 * @author cai_zr * */public class SMBFileUpload implements IFileUpload{private String smb_upload_path;private String smb_upload_url;private final static String sysSeparator = System.getProperty("file.separator");public static String FILE_PATH = "tbsm"+sysSeparator+"tbsmfile";public SMBFileUpload(){}public void setProperties(Properties p) {smb_upload_path = p.getProperty("smb.upload.path").trim();smb_upload_url = p.getProperty("smb.upload.url").trim();}public String upload(File file,String filePath, String fileName) {//创建目录        SimpleDateFormat sim=new SimpleDateFormat("yyyyMM");String path=sim.format(new Date()) + "/";String folder=FILE_PATH+sysSeparator+filePath;if (!folder.endsWith("\\")) {  folder += "\\";}if ("\\".equals(sysSeparator)) {  folder = folder.replace("/", "\\");}folder=folder.replace("\\", "//");String remoteUrl = smb_upload_path + folder;try {  System.out.println("remoteUrl:"+remoteUrl);    SmbFile remoteFile1 = new SmbFile(remoteUrl);  if (!remoteFile1.exists()) remoteFile1.mkdirs();  remoteFile1 = null;} catch (Exception e1) {  // TODO Auto-generated catch block  e1.printStackTrace();  return null;}//上传文件        InputStream in = null;            OutputStream out = null;            SmbFile remoteFile = null;        try {                File localFile = file;              SimpleDateFormat sim1=new SimpleDateFormat("yyMMddHHmmssSSS");            //上传后的文件名       String newFileName=sim1.format(new Date())+"."+fileName.split("\\.")[1];                remoteFile = new SmbFile(remoteUrl+sysSeparator+newFileName);                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];                }                //System.out.println("SMB Upload:" + localFile.getPath() + " => " + remoteUrl + newFileName);            return filePath+sysSeparator+newFileName;        } catch (Exception e) {                e.printStackTrace();            } finally {                try {                    out.close();                    in.close();                 remoteFile = null;            } catch (IOException e) {                    e.printStackTrace();                }            }          return null;    }}

IFileUpload.java

package com.trustel.common.file;import java.io.File;import java.util.Properties;public interface IFileUpload {//文件上传的方式 ，1FTP，2普通文件上传，3共享上传public static int FILE_UPLOAD_TYPE_FTP = 1;  public static int FILE_UPLOAD_TYPE_FILE = 2;public static int FILE_UPLOAD_TYPE_SMB = 3;/** * 设置配置信息 * @param p */public void setProperties(Properties p);/** * 上传文件，并返回上传文件的URL * @return */public String upload(File file,String folder,String fileName);}

(4) JSP页面显示图片：

<%    String fileUrl=(String)request.getAttribute("fileUrl");    String FILE_PATH = "tbsm/tbsmfile";    if(fileUrl!=null&&!fileUrl.equals("")){ %> <img src="<%=FileUploadFactory.getUploadURL() %>/<%=FILE_PATH %>/<%=fileUrl %>" /> <%} %>

注释：src路径根据ftp.properties文件中的 smb.upload.url路径读取对应的JSP显示图片。

smb.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="GBK"%><%@page import="java.io.OutputStream"%><%@page import="jcifs.smb.SmbFile"%><%@page import="jcifs.smb.SmbFileInputStream"%><%@page import="java.text.SimpleDateFormat"%><%@page import="com.trustel.common.file.FileUploadFactory"%><%String path = request.getContextPath();SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");String FILE_PRE = FileUploadFactory.getUploadPath();//"smb://smb_user:123456@192.168.132.20/test_smb/"; String filePath = request.getParameter("f");if (filePath == null) {  out.print("can't find resource!");  return ;}String ext = filePath.substring(filePath.lastIndexOf(".")+1);//读取文件扩展名ext = ext.toLowerCase();String contentType = "";if (ext.equals("gif")){contentType = "image/GIF";}else if (ext.equals("jpg")){contentType = "image/JPEG";}else if (ext.equals("jpeg")){contentType = "image/JPEG";}else if (ext.equals("png")){contentType = "image/PNG";}else if (ext.equals("txt")){contentType = "application/octet-stream";String fileName = filePath.substring(filePath.lastIndexOf("//")+2);response.setHeader("Content-Disposition","attachment;filename="+fileName);}else{contentType = "application/octet-stream";String fileName = filePath.substring(filePath.lastIndexOf("//")+2);response.setHeader("Content-Disposition","attachment;filename="+fileName);}/*if (contentType.length()==0){out.print("can't find resource!");return ;}*///System.out.println(contentType); SmbFileInputStream in = null;OutputStream out1 = null;out.clear();try{    SmbFile smbFile = new SmbFile(FILE_PRE + filePath);       System.out.println("load:"+ smbFile.getPath());     int length = smbFile.getContentLength();// 得到文件的大小        byte buffer[] = new byte[length];        in = new SmbFileInputStream(smbFile);       out1 = response.getOutputStream();    response.setContentType(contentType);     int len =0;byte[] bytes = new byte[1024];//System.out.println("============"); while( (len=in.read(bytes)) > 0){out1.write(bytes,0,len);//System.out.println("=="+len);}//out1.flush();out1.close();response.flushBuffer();//在tomcat下加上下面两句才不会出现错误： Servlet.service() for servlet jsp threw exceptionout.clear();out = pageContext.pushBody();}catch(Exception e){out.print("load resouce error. ");e.printStackTrace();}finally{if(in != null) in.close();//if(out1 !=null) out1.close();}%>

二、下载文件

（1）手动保存文件：

JSP页面：

SMB下载文件：<a href="<%=request.getContextPath() %>/good/handDownLoadFile.action">手动保存</a>

Action：

       /** * SMB下载文件 手动保存； * @return * @throws IOException  */public String handDownLoadFile() throws IOException{  //数据库中存入的文件路径；  String fileURL="pic/140509092233296.jpeg";  String path=FileUploadFactory.getUploadPath()+"tbsm/tbsmfile/"+fileURL;  ServletActionContext.getRequest().setAttribute("filePath",path);  ServletActionContext.getRequest().setAttribute("fileName",fileURL.substring(fileURL.lastIndexOf("/")+1));  return SUCCESS;}

download.jsp：

<%@ page contentType="text/html;charset=UTF-8" %><%@ page language="java" import="java.util.*,java.io.*" %><%@page import="jcifs.smb.SmbFile"%><%@page import="jcifs.smb.SmbFileInputStream"%><%String filePath="";String fileName="";if(request.getAttribute("filePath")!=null && !request.getAttribute("filePath").equals("")){filePath=request.getAttribute("filePath").toString();fileName=request.getAttribute("fileName").toString();String realPath = filePath;SmbFileInputStream in = null;OutputStream os = null;try {//java.io.File file=new java.io.File(realPath);SmbFile file = new SmbFile(realPath);         if(!file.exists()) {    out.println("下载的文件不存在！");    return;    }       out.clear();    response.setContentType("application/x-msdownload");    response.setHeader("Content-disposition","attachment; filename="+new String(fileName.getBytes(),"ISO8859_1"));       in = new SmbFileInputStream(file);     DataInputStream dis=new DataInputStream(in);     os = response.getOutputStream();    byte[] buf=new byte[1024];    int left=(int)file.length();       int read=0;       while(left>0) {    read=dis.read(buf);           left-=read;           os.write(buf,0,read);       }       if (true) {    return;    }  } catch (Exception e) {e.printStackTrace();} finally {if (in != null) {in.close();  }if (os != null) {    os.close();     } }}else{%><script type="text/javascript"> history.go(-1);   window.alert('没有附件，不能下载')</script><%}%>

注释：JSP页面发送请求，Struts找到对应的Action方法，处理完毕后放回String，跳转download.jsp。

（2）自动保存文件：

JSP页面：

SMB下载文件：<a href="<%=request.getContextPath() %>/good/autoDownLoadFile.action">自动保存</a>

Action：

       /** * SMB下载文件 自动保存； * @return * @throws IOException  */public String autoDownLoadFile() throws IOException{  //数据库中存入的文件路径；  String fileURL="pic/140509092233296.jpeg";  String filePath="D://WebApplication/tbsm/tbsmfile/"+fileURL;  File file=new File(filePath);//如果文件路径的文件夹不存在，需要创建。    String smbPath = FileUploadFactory.getUploadPath();   smbPath+="tbsm/tbsmfile/"+fileURL;  SmbFileInputStream in = null;  FileOutputStream os = null;  SmbFile smbFile = new SmbFile(smbPath);  int length = smbFile.getContentLength();// 得到文件的大小      byte buffer[] = new byte[length];      in = new SmbFileInputStream(smbFile);     os = new FileOutputStream(file);  int len =0;  byte[] bytes = new byte[1024];  while( (len=in.read(bytes)) > 0){os.write(bytes,0,len);  }  os.close();  in.close();      return SUCCESS;}

这是工程中的应用，简单的例子可以参考http://dongisland.iteye.com/blog/1453613

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