Java中怎么对接远程文件

Java中怎么对接远程文件，相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。

配置文件：copyRemoteFile.properties

#  class="lazy" data-src/dao.properties    #      这里保存的都是键值对信息    #  interface name(no packgage) = implementation class  # 注意：    #A：【路径符号】【必须】是【/】【如：D:/home/publish】    #B：【键key=值value】对【后面】【绝不允许有空格】【如：REMOTE_HOST_IP=172.77.9.77】   # REMOTE_HOST_IP  远程机器IP    # LOGIN_ACCOUNT   远程机器登录名    # LOGIN_PASSWORD  远程机器登录密码    # SHARE_DOC_NAME  远程机器共享文件夹名（设置共享后必须授予读写权限）   # sourcePath      本地路径    # targetPath      目标路径（真实路径=共享文件夹路径+目标路径）   REMOTE_HOST_IP=172.77.9.77   LOGIN_ACCOUNT=77   LOGIN_PASSWORD=77   SHARE_DOC_NAME=vfs_home    sourcePath=D:/home/publish   targetPath=publish

导入jar包：jcifs-1.3.16.jar

读取配置文件中key对应的value类：RemoteConfigUtil.java

package com.remote;       import java.io.IOException;   import java.util.Properties;        public class RemoteConfigUtil {       private String REMOTE_HOST_IP;       private String LOGIN_ACCOUNT;       private String LOGIN_PASSWORD;       private String SHARE_DOC_NAME;       private String sourcePath;       private String targetPath;           //无参构造方法       public RemoteConfigUtil() {           try {               // 读取配置文件               Properties prop = new Properties();               prop.load(this.getClass().getClassLoader().getResourceAsStream("copyRemoteFile.properties"));               // 根据 key 获取 value               REMOTE_HOST_IP = prop.getProperty("REMOTE_HOST_IP");               LOGIN_ACCOUNT = prop.getProperty("LOGIN_ACCOUNT");               LOGIN_PASSWORD = prop.getProperty("LOGIN_PASSWORD");               SHARE_DOC_NAME = prop.getProperty("SHARE_DOC_NAME");               sourcePath = prop.getProperty("sourcePath");               targetPath = prop.getProperty("targetPath");           } catch (IOException e) {               e.printStackTrace();           }       }       public String getLOGIN_ACCOUNT() {           return LOGIN_ACCOUNT;       }           public void setLOGIN_ACCOUNT(String login_account) {           LOGIN_ACCOUNT = login_account;       }           public String getLOGIN_PASSWORD() {           return LOGIN_PASSWORD;       }           public void setLOGIN_PASSWORD(String login_password) {           LOGIN_PASSWORD = login_password;       }           public String getREMOTE_HOST_IP() {           return REMOTE_HOST_IP;       }           public void setREMOTE_HOST_IP(String remote_host_ip) {           REMOTE_HOST_IP = remote_host_ip;       }           public String getSHARE_DOC_NAME() {           return SHARE_DOC_NAME;       }           public void setSHARE_DOC_NAME(String share_doc_name) {           SHARE_DOC_NAME = share_doc_name;       }           public String getSourcePath() {           return sourcePath;       }           public void setSourcePath(String sourcePath) {           this.sourcePath = sourcePath;       }           public String getTargetPath() {           return targetPath;       }           public void setTargetPath(String targetPath) {           this.targetPath = targetPath;       }   }

操作远程共享文件夹类： RemoteFileUtil.java

根据需求选择相应的 Method

package com.remote;   import java.io.BufferedOutputStream;   import java.io.BufferedReader;   import java.io.File;   import java.io.FileInputStream;   import java.io.FileNotFoundException;   import java.io.IOException;   import java.io.InputStream;   import java.io.InputStreamReader;   import java.io.OutputStream;   import java.net.MalformedURLException;   import java.net.UnknownHostException;   import java.util.ArrayList;   import java.util.List;       import jcifs.smb.SmbException;   import jcifs.smb.SmbFile;   import jcifs.smb.SmbFileInputStream;   import jcifs.smb.SmbFileOutputStream;        public class RemoteFileUtil {                  private ArrayList filelist = new ArrayList();       RemoteConfigUtil rc = new RemoteConfigUtil();           private String remoteHostIp;  //远程主机IP          private String account;       //登陆账户          private String password;      //登陆密码          private String shareDocName;  //共享文件夹名称                             public RemoteFileUtil(){             this.remoteHostIp = rc.getREMOTE_HOST_IP();              this.account = rc.getLOGIN_ACCOUNT();              this.password = rc.getLOGIN_PASSWORD();              this.shareDocName = rc.getSHARE_DOC_NAME();          }                             public RemoteFileUtil(String remoteHostIp, String account, String password,String shareDocName) {              this.remoteHostIp = remoteHostIp;              this.account = account;              this.password = password;              this.shareDocName = shareDocName;          }                                public List<String> readFile(String remoteFileName){              SmbFile smbFile = null;              BufferedReader reader = null;              List<String> resultLines = null;              //构建连接字符串,并取得文件连接              String conStr = null;              conStr = "smb://"+account+":"+password+"@"+remoteHostIp+"/"+shareDocName+"/"+remoteFileName;              try {                  smbFile = new SmbFile(conStr);              } catch (MalformedURLException e) {                  e.printStackTrace();              }              //创建reader              try {                  reader = new BufferedReader(new InputStreamReader(new SmbFileInputStream(smbFile)));              } catch (SmbException e) {                  e.printStackTrace();              } catch (MalformedURLException e) {                  e.printStackTrace();              } catch (UnknownHostException e) {                  e.printStackTrace();              }                     //循环对文件进行读取              String line;              try {                  line = reader.readLine();                  if(line != null && line.length()>0){                      resultLines = new ArrayList<String>();                  }                  while (line != null) {                      resultLines.add(line);                      line = reader.readLine();                  }              } catch (IOException e) {                  e.printStackTrace();              }              //返回              return resultLines;          }                             public boolean writeFile(InputStream is,String remoteFileName){              SmbFile smbFile = null;              OutputStream os = null;              byte[] buffer = new byte[1024*8];              //构建连接字符串,并取得文件连接              String conStr = null;              conStr = "smb://"+account+":"+password+"@"+remoteHostIp+"/"+shareDocName+"/"+remoteFileName;              try {                  smbFile = new SmbFile(conStr);              } catch (MalformedURLException e) {                  e.printStackTrace();                  return false;              }                             //获取远程文件输出流并写文件到远程共享文件夹              try {                  os = new BufferedOutputStream(new SmbFileOutputStream(smbFile));                  while((is.read(buffer))!=-1){                      os.write(buffer);                         }              } catch (Exception e) {                  e.printStackTrace();                  return false;              }                              return true;          }                                        public boolean writeFile(String localFileFullName ,String remoteFileName){              try {                  return writeFile(new FileInputStream(new File(localFileFullName)),remoteFileName);              } catch (FileNotFoundException e) {                  e.printStackTrace();                  return false;              }          }                             public boolean writeFile(File localFile ,String remoteFileName){              try {                  return writeFile(new FileInputStream(localFile),remoteFileName);              } catch (FileNotFoundException e) {                  e.printStackTrace();                  return false;              }          }                                 public List<String> getFiles(){              SmbFile smbFile = null;              BufferedReader reader = null;              List<String> resultLines = new ArrayList();              //构建连接字符串,并取得文件连接              String conStr = null;              conStr = "smb://"+account+":"+password+"@"+remoteHostIp+"/"+shareDocName+"/";              try {                  smbFile = new SmbFile(conStr);              } catch (MalformedURLException e) {                  e.printStackTrace();              }              //创建reader              try {                String[] a = smbFile.list();             for(int i=0;i<a.length;i++){               resultLines.add(a[i]);               System.out.println(a[i]);             }           } catch (SmbException e) {                  e.printStackTrace();              } catch (Exception e) {                  e.printStackTrace();              }                     //返回              return resultLines;          }                          public void smbMkDir(String name) {           // 注意使用jcifs-1.3.15.jar的时候 操作远程计算机的时候所有类前面须要增加Smb           // 创建一个远程文件对象           String conStr = "smb://" + account + ":" + password + "@" + remoteHostIp + "/" + shareDocName;           SmbFile remoteFile;           try {               remoteFile = new SmbFile(conStr + "/" + name);               if (!remoteFile.exists()) {                   remoteFile.mkdir();// 创建远程文件夹               }           } catch (MalformedURLException e) {               e.printStackTrace();           } catch (SmbException e) {               e.printStackTrace();           }       }                    public void delFolder(String folderPath) {           //String conStr = "smb://"+LOGIN_ACCOUNT+":"+LOGIN_PASSWORD+"@"+remoteHostIp+"/"+shareDocName;            try {               delAllFile(folderPath); //删除完里面所有内容               String filePath = folderPath;               filePath = filePath.toString();                               SmbFile myFilePath = new SmbFile(filePath);               myFilePath.delete(); //删除空文件夹           }           catch (Exception e) {               String message = ("删除文件夹操作出错");               System.out.println(message);           }       }                            public boolean delAllFile(String path) {           boolean bea = false;           try {               SmbFile file = new SmbFile(path);               if (!file.exists()) {                   return bea;               }               if (!file.isDirectory()) {                   return bea;               }               String[] tempList = file.list();               SmbFile temp = null;               for (int i = 0; i < tempList.length; i++) {                   if (path.endsWith("/")) {                       temp = new SmbFile(path + tempList[i]);                   } else {                       temp = new SmbFile(path + "/" + tempList[i]);                   }                   if (temp.isFile()) {                       temp.delete();                   }                   if (temp.isDirectory()) {                       delAllFile(path + "/" + tempList[i] + "/");// 先删除文件夹里面的文件                       delFolder(path + "/" + tempList[i] + "/");// 再删除空文件夹                       bea = true;                   }               }               return bea;           } catch (Exception e) {               return bea;           }       }                                public void copyFolder(String oldPath, String newPath) {           String conStr = "smb://" + account + ":" + password + "@" + remoteHostIp + "/" + shareDocName;           System.err.println(conStr);           try {                            SmbFile exittemps = new SmbFile(conStr + "/" + newPath);               if (!exittemps.exists()) {                   exittemps.mkdirs(); // 如果文件夹不存在 则建立新文件夹               }               File a = new File(oldPath);               String[] file = a.list();               File temp = null;               for (int i = 0; i < file.length; i++) {                   if (oldPath.endsWith("/")) {                       temp = new File(oldPath + file[i]);                   } else {                       temp = new File(oldPath + "/" + file[i]);                   }                   if (temp.isFile()) {                       if (temp.exists()) {                           writeFile(temp, newPath + "/" + file[i]);                       }                   }                   if (temp.isDirectory()) {// 如果是子文件夹                       copyFolder(oldPath + "/" + file[i], newPath + "/" + file[i]);                   }               }               } catch (Exception e) {               String message = "复制整个文件夹内容操作出错";               System.out.println(message);           }       }                    public void copyFileToRemoteDir(String localFileFullName, String targetDir) {           System.err.println(localFileFullName + "--" + targetDir);           RemoteFileUtil rf = new RemoteFileUtil();           InputStream is = null;           SmbFile smbFile = null;           OutputStream os = null;           byte[] buffer = new byte[1024 * 8];           // 构建连接字符串,并取得文件连接           String conStr = null;           conStr = "smb://" + account + ":" + password + "@" + remoteHostIp + "/" + shareDocName + "/" + targetDir;           System.err.println(conStr);           SmbFile sf;           try {               sf = new SmbFile("smb://" + account + ":" + password + "@" + remoteHostIp + "/" + shareDocName + "/" + targetDir);               if (!sf.exists()) {                   // 新建目标目录                   sf.mkdirs();                   is = new FileInputStream(new File(localFileFullName));                   // 获取远程文件输出流并写文件到远程共享文件夹                   os = new BufferedOutputStream(new SmbFileOutputStream(smbFile));                   while ((is.read(buffer)) != -1) {                       os.write(buffer);                   }               }           } catch (Exception e) {               System.err.println("提示：复制整个文件夹内容操作出错。");           }               File file = new File(localFileFullName);           if (file.isFile()) {               File sourceFile = file;     // 源文件               File targetFile = new File(new File(targetDir).getAbsolutePath() + File.separator + file.getName());// 目标文件               String name = file.getName();// 文件名               if (targetDir != null && targetFile != null) {                   rf.writeFile(sourceFile, "/" + targetDir + "/" + name); // 复制文件               } else if (targetFile != null) {                   rf.writeFile(sourceFile, name); // 复制文件               }           }       }                    public ArrayList refreshFileList(String strPath, String subStr) {           File dir = new File(strPath);           File[] files = dir.listFiles();           if (files == null)               return null;           for (int i = 0; i < files.length; i++) {               if (!files[i].isDirectory()) {                   String strFileName = files[i].getAbsolutePath().toLowerCase();                   if (files[i].getName().indexOf(subStr) >= 0) {                       filelist.add(files[i].getName());                   }               }           }           return filelist;       }           // 测试从本地复制文件到远程目标目录，测试已通过       public static void main(String[] args) {           RemoteConfigUtil rc = new RemoteConfigUtil();           RemoteFileUtil util = new RemoteFileUtil();           util.copyFileToRemoteDir(rc.getSourcePath(), rc.getTargetPath());       }   }

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