没密码的,直接用url访问就可以了,跟本地文件相同。
有密码的,用smb。
远端需要开启smb。
win10启动smb的方法:
https://jingyan.baidu.com/article/47a29f2477fb56c014239996.html
注意,配完必须要重启windows。
smb需要在服务器端启动,也就是那台windows机器,不启动会报错 Software caused connection abort: recv failed
package file; import jcifs.smb.*; import java.io.*; public class ShareFile { /**
* 一个普通的读取远端共享文件的方法,不需要输入密码
* @param sourceFilePath
* @param encode
* @throws IOException
*/
public static void readFile(String sourceFilePath, String encode) throws IOException {
File file = new File(sourceFilePath);
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file), encode));
StringBuilder strBuilder = new StringBuilder();
String sLine = null;
while ((sLine = br.readLine()) != null) {
strBuilder.append(sLine);
strBuilder.append("\r\n");
} br.close(); System.out.println(strBuilder.toString());
} /**
* 一个普通的读取远端共享文件并保存到本地的方法,不需要输入密码
* @param srcFileUrl
* @param dstFilePath
* @param dstFileName
* @throws IOException
*/
public static void readAddSaveFile(String srcFileUrl, String dstFilePath,String dstFileName) throws IOException { File dstPath = new File(dstFilePath);
if (!dstPath.exists()) {
dstPath.mkdirs();
} OutputStream outputStream = new FileOutputStream(dstPath.getPath() + File.separator + dstFileName); // 开始读取
int len;
byte[] bs = new byte[1024]; // 1K的数据缓冲
File srcFile = new File(srcFileUrl);
InputStream inputStream = new FileInputStream(srcFile);
while ((len = inputStream.read(bs)) != -1) {
outputStream.write(bs, 0, len);
} inputStream.close();
outputStream.flush();
outputStream.close(); } /**
* 一个往远端smb文件写数据的方法。
* @throws IOException
*/
public static void getFileBySmb() throws IOException {
String user = "Felicia_shi";
String pass = "123456"; String sharedFolder = "Share";
String path = "smb://1.1.1.109/" + sharedFolder + "/test.txt";
NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication("", user, pass);
SmbFile smbFile = new SmbFile(path, auth);
System.out.println(smbFile.getDfsPath());
;
SmbFileOutputStream smbfos = new SmbFileOutputStream(smbFile);
smbfos.write("testing.and writing to a file".getBytes());
System.out.println("completed nice !");
} /**
* 远端文件路径。账号密码可以用这个url里面配置的,也可以用上面的NtlmPasswordAuthentication方式
*/
private static String smbUrl = "smb://Felicia_shi:123456@1.1.1.109/Share"; /**
* 在远端smb路径下创建路径
* @param dir
* @throws Exception
*/
public static void createDir(String dir) throws Exception{
SmbFile fp = new SmbFile(smbUrl +"/"+dir);
System.out.println("fieldir+++++++++++++++++++++="+ smbUrl +"/"+dir);
//File fp = new File("Z://"+dir);
// 目录已存在创建文件夹
if (fp.exists() && fp.isDirectory()) { } else{
// 目录不存在的情况下,会抛出异常
fp.mkdir();
}
} /**
* 拷贝smb下一个文件到本地。dstFileName为本地带文件名的路径,smbUrl为远端路径,文件名一样。
* 这么写比较死,可以把文件名和路径分开放。
* @param dstFileName
*/
public static void copyDir(String dstFileName) {
InputStream in = null;
OutputStream out = null;
try{
File fp = new File(dstFileName); SmbFile remoteFile = new SmbFile(smbUrl +"//"+fp.getName());
System.out.println("remoteFile+++++++++++++++++++++="+remoteFile);
in = new BufferedInputStream(new SmbFileInputStream(remoteFile));
out = new BufferedOutputStream(new FileOutputStream(fp));
// in = new BufferedInputStream(new FileInputStream(fp));
// out = new BufferedOutputStream(new SmbFileOutputStream(remoteFile));
byte[] buffer = new byte[1024];
int len;
while ((len = in.read(buffer)) != -1) {
out.write(buffer, 0, len);
}
// 刷新此缓冲的输出流
out.flush();
}catch (Exception e) {
e.printStackTrace();
} finally {
try {
out.close();
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} /**
* 获取本段路径下的所有文件名
* @param path
* @return
*/
public static String[] getFileNames(String path) {
File dirFile = new File(path);
if (dirFile.isDirectory()) {
File[] files = dirFile.listFiles();
String[] fileNames = new String[files.length];
for (int i = 0; i < files.length; i++) {
fileNames[i] = files[i].getAbsolutePath();
}
return fileNames;
} else {
return null;
}
} public static void main(String[] args) {
// //读取单个文件
// try {
// ShareFile.readFile("\\\\1.1.1.110\\sfx\\gx\\11.txt","utf-8");
// } catch (IOException e) {
// e.printStackTrace();
// } // //读取某个目录下所有文件
//
// String[] fileNames = getFileNames("\\\\1.1.1.110\\sfx\\gx");
// String encode = "utf-8";
// for (String fileName : fileNames) {
// try {
// readFile(fileName, encode);
// } catch (IOException e) {
// e.printStackTrace();
// }
// } // try {
// readAddSaveFile("\\\\1.1.1.110\\sfx\\gx\\a.pdf","\\\\1.1.1.110\\sfx\\gx1","a.pdf");
// } catch (IOException e) {
// e.printStackTrace();
// } // try {
// getFileBySmb();
// createDir("111");
// } catch (IOException e) {
// e.printStackTrace();
// } catch (Exception e) {
// e.printStackTrace();
// } copyDir("E:\\\\sfx\\gx1\\a.pdf"); }
}