ftp文件下载转字符数组
时间: 2023-05-17 09:04:15 浏览: 52
您可以使用以下代码将 FTP 文件下载并转换为字符数组:
```python
import urllib.request
url = 'ftp://example.com/file.txt'
response = urllib.request.urlopen(url)
data = response.read()
char_array = bytearray(data)
```
请注意,您需要将 `url` 替换为您要下载的文件的实际 URL。
相关问题
qt ftp 文件下载
要使用QT实现FTP文件下载功能,你可以使用QNetworkAccessManager类。下面是一个使用QT的QNetworkAccessManager下载文件的示例代码:
```
QNetworkAccessManager *manager = new QNetworkAccessManager(this);
QUrl url("ftp://example.com/path/to/file.txt");
QNetworkRequest request(url);
QNetworkReply *reply = manager->get(request);
connect(reply, &QNetworkReply::finished, [=]() {
if(reply->error() == QNetworkReply::NoError) {
QFile file("local/path/to/save/file.txt");
if(file.open(QIODevice::WriteOnly)) {
file.write(reply->readAll());
file.close();
qDebug() << "File downloaded successfully!";
}
} else {
qDebug() << "Error: " << reply->errorString();
}
reply->deleteLater();
});
```
请注意,你需要将"example.com/path/to/file.txt"替换为实际的FTP服务器地址和文件路径,将"local/path/to/save/file.txt"替换为你想要保存文件的本地路径。
这段代码首先创建了一个QNetworkAccessManager对象,并指定了要下载的文件的URL。然后,发送了一个GET请求,并连接了finished信号的槽函数。在槽函数中,我们首先检查是否有错误发生,如果没有错误,我们打开本地文件并将从网络回复中读取的数据写入到该文件中。最后,我们删除回复对象并输出相应的消息。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [QT实现FTP下载文件功能](https://blog.csdn.net/zhangliangfeng412/article/details/121535580)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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java ftp 文件下载 中文乱码
你可以尝试在下载文件之前设置字符编码为UTF-8,这样可以避免中文乱码的问题。在使用FTP进行文件下载时,可以使用`setControlEncoding`方法来设置字符编码。以下是一个示例代码:
```java
import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
public class FTPDownloadExample {
public static void main(String[] args) {
String server = "ftp.example.com";
int port = 21;
String user = "username";
String password = "password";
String remoteFilePath = "/path/to/remote/file.txt";
String localFilePath = "/path/to/local/file.txt";
FTPClient ftpClient = new FTPClient();
try {
ftpClient.connect(server, port);
ftpClient.login(user, password);
ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
ftpClient.setControlEncoding("UTF-8");
OutputStream outputStream = new FileOutputStream(localFilePath);
ftpClient.retrieveFile(remoteFilePath, outputStream);
outputStream.close();
System.out.println("文件下载成功!");
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (ftpClient.isConnected()) {
ftpClient.logout(); ftpClient.disconnect();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
```
请将上述代码中的`server`、`port`、`user`、`password`、`remoteFilePath`和`localFilePath`替换为你实际的FTP服务器信息和文件路径。