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
# 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()); } }看完上述内容，你们掌握Java中怎么对接远程文件的方法了吗？如果还想学到更多技能或想了解更多相关内容，欢迎关注编程网行业资讯频道，感谢各位的阅读！
