野兔WebDAV同步示例？

Question

我使用Jackrabbit库来使用webdav协议与云存储进行通信。我需要一种方法来列出来自特定目录的所有文件，并获得最后一个修改的属性，但是我似乎找不到关于这方面的任何工作示例。

我基本上需要代码来将本地目录中的文件与webdav url同步。

import java.io.File;
import java.io.FileInputStream;

import org.apache.commons.httpclient.Credentials;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScope;
import org.apache.commons.httpclient.methods.InputStreamRequestEntity;
import org.apache.commons.httpclient.methods.RequestEntity;
import org.apache.jackrabbit.webdav.client.methods.DavMethod;
import org.apache.jackrabbit.webdav.client.methods.MkColMethod;
import org.apache.jackrabbit.webdav.client.methods.PutMethod;

public class WebDavClient
{
    private String resourceUrl;
    private HttpClient client;
    private Credentials credentials;
    private DavMethod method;

    public WebDavClient(String resourceUrl, String username, String password)
            throws Exception
    {
        this.resourceUrl = resourceUrl;
        client = new HttpClient();
        credentials = new UsernamePasswordCredentials(username, password);
        client.getState().setCredentials(AuthScope.ANY, credentials);
    }

    public int upload(String fileToUpload) throws Exception
    {
        method = new PutMethod(getUpdatedWebDavPath(fileToUpload));

        RequestEntity requestEntity = new InputStreamRequestEntity(
                new FileInputStream(fileToUpload));
        ((PutMethod) method).setRequestEntity(requestEntity);

        client.executeMethod(method);

        return method.getStatusCode();
    }

    public int createFolder(String folder) throws Exception
    {
        method = new MkColMethod(getUpdatedWebDavPath(folder));

        client.executeMethod(method);

        return method.getStatusCode();
    }

    private String getUpdatedWebDavPath(String file)
    {
        // Make sure file names do not contain spaces
        return resourceUrl + "/" + new File(file).getName().replace(" ", "");
    }
}

将文件Test.txt上载到备份文件夹的用法示例：

String myAccountName = "...";
String myPassword = "...";
WebDavClient webdavUploader = new WebDavClient("https:\\\\webdav.hidrive.strato.com\\users\\" + myAccountName + "\\Backup", myAccountName, myPassword);

webdavUploader.upload("C:\\Users\\Username\\Desktop\\Test.txt");

下面列出了一个可能有用的不同DavMethods的列表：http://jackrabbit.apache.org/api/1.6/org/apache/jackrabbit/webdav/client/methods/package-summary.html

请帮帮我，我在这上面挣扎了很久了！

Answer 1

看看欧盟门户网站上Krusche和合作伙伴的AMES WebDAV客户端代码。它是根据GPL授权的，所以它可能符合你的目的。

https://joinup.ec.europa.eu/svn/ames-web-service/trunk/AMES-WebDAV/ames-webdav/src/de/kp/ames/webdav/WebDAVClient.java

它对我有效，但是要访问，例如Win32LastModifiedTime，我需要获得自定义命名空间。

private static final Namespace WIN32_NAMESPACE = Namespace.getNamespace("Z2", "urn:schemas-microsoft-com:");

并从属性中检索自定义属性Win32LastModifiedTime。

                /* 
                 * Win32LastModifiedTime
                 */
                String win32lastmodifiedtime = null;

                DavProperty<?> Win32LastModifiedTime = properties.get("Win32LastModifiedTime", WIN32_NAMESPACE);            
                if ((Win32LastModifiedTime != null) && (Win32LastModifiedTime.getValue() != null)) win32lastmodifiedtime = Win32LastModifiedTime.getValue().toString();