java 使用 jcifs 读取文件的最简单方法
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Simplest way to read a file using jcifs
提问by Blaine
I am trying to read a file from a network share using the external jcifs library. Most sample codes I can find for reading files are quite complex, potentially unnecessarily so. I have found a simple way to writeto a file as seen below. Is there a way to read a file using similar syntax?
我正在尝试使用外部jcifs 库从网络共享中读取文件。我能找到的大多数用于读取文件的示例代码都非常复杂，可能是不必要的。我找到了一种写入文件的简单方法，如下所示。有没有办法使用类似的语法读取文件？
SmbFile file= null;
try {
String url = "smb://"+serverAddress+"/"+sharename+"/TEST.txt";
NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(null, username, password);
file = new SmbFile(url, auth);
SmbFileOutputStream out= new SmbFileOutputStream(file);
out.write("test string".getBytes());
out.flush();
out.close();
} catch(Exception e) {
JOptionPane.showMessageDialog(null, "ERROR: "+e);
}
回答by Marcin Pietraszek
SmbFile file = null;
byte[] buffer = new byte[1024];
try {
String url = "smb://"+serverAddress+"/"+sharename+"/TEST.txt";
NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(null, username, password);
file = new SmbFile(url, auth);
try (SmbFileInputStream in = new SmbFileInputStream(file)) {
int bytesRead = 0;
do {
bytesRead = in.read(buffer)
// here you have "bytesRead" in buffer array
}
while (bytesRead > 0);
}
} catch(Exception e) {
JOptionPane.showMessageDialog(null, "ERROR: "+e);
}
or even better, assuming that you're working with text files - using BufferedReaderfrom Java SDK:
甚至更好，假设您正在处理文本文件 - 使用BufferedReader来自 Java SDK：
try (BufferedReader reader = new BufferedReader(new InputStreamReader(new SmbFileInputStream(file)))) {
String line = reader.readLine();
while (line != null) {
line = reader.readLine();
}
}
And write with:
并写：
try (BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(new SmbFileOutputStream(file)))) {
String toWrite = "xxxxx";
writer.write(toWrite, 0, toWrite.length());
}
回答by Andriy Fedotov
try {
String url = "smb://" + serverAddress + "/" + sharename + "/test.txt";
NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication(DOMAIN, USER_NAME, PASSWORD);
String fileContent = IOUtils.toString(new SmbFileInputStream(new SmbFile(url, auth)), StandardCharsets.UTF_8.name());
System.out.println(fileContent);
} catch (Exception e) {
System.err.println("ERROR: " + e.getMessage());
}
