java - 使用Java卡在DropBox中的文件上传下载应用程序中

我正在使用Java开发Dropbox api。
第一个应用是在Dropbox帐户中上传和下载文件。
我有一个令牌可以使用Dropbox进行身份验证，但是当我尝试在帐户中上传文件时，出现错误的请求错误，例如：

Exception in thread "main" com.dropbox.core.DbxException$BadResponse: unexpected response code: 401
    at com.dropbox.core.DbxClient$4.handle(DbxClient.java:274)
    at com.dropbox.core.DbxClient$4.handle(DbxClient.java:270)
    at com.dropbox.core.DbxRequestUtil.doGet(DbxRequestUtil.java:265)
    at com.dropbox.core.DbxClient.doGet(DbxClient.java:1912)
    at com.dropbox.core.DbxClient.getAccountInfo(DbxClient.java:270)
    at com.prit.net.Main.main(Main.java:50)

我的代码在package com.prit.net下面；

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.Locale;
import com.dropbox.core.DbxAppInfo;
import com.dropbox.core.DbxClient;
import com.dropbox.core.DbxEntry;
import com.dropbox.core.DbxException;
import com.dropbox.core.DbxRequestConfig;
import com.dropbox.core.DbxWebAuthNoRedirect;
import com.dropbox.core.DbxWriteMode;
public class Main {

    public static void main(String[] args) throws IOException, DbxException, URISyntaxException {
    // Get your app key and secret from the Dropbox developers website.
    final String APP_KEY = "mykey"; // change with yours
    final String APP_SECRET = "mysecret"; // change with yours

    DbxAppInfo appInfo = new DbxAppInfo(APP_KEY, APP_SECRET);

    DbxRequestConfig config = new DbxRequestConfig("JavaTutorial/1.0",Locale.getDefault().toString());
    DbxWebAuthNoRedirect webAuth = new DbxWebAuthNoRedirect(config, appInfo);
    // Have the user sign in and authorize your app.
    String authorizeUrl = webAuth.start();
    //Desktop.getDesktop().browse(new URL(authorizeUrl).toURI());
    // System.out.println("1. Go to: " + authorizeUrl);
    // System.out
    // .println("2. Click \"Allow\" (you might have to log in first)");
    // System.out.println("3. Copy the authorization code.");
    // String code = new BufferedReader(new InputStreamReader(System.in))
    // .readLine().trim();
    //DbxAuthFinish authFinish = webAuth.finish(code);
    // System.out.println("Access token is:");
    // System.out.println(authFinish.accessToken.toString());

    // save the value of myToken to a file for future use
    String myToken = "myTokensecretkeyxxxxxxxxxxxxxxxxx"; // change with
                                                                // yours
    // DbxClient client = new DbxClient(config, authFinish.accessToken);
    DbxClient client = new DbxClient(config, myToken);
    System.out.println(config);
    System.out.println(myToken);

    System.out.println("check1");
    File inputFile = new File("C:\\Dev\\foo.txt");
    System.out.println("check2");
    FileInputStream inputStream = new FileInputStream(inputFile);
    System.out.println("check3");
    try {
        DbxEntry.File uploadedFile = client.uploadFile("/FileApiDemo/fooup2.txt",
                DbxWriteMode.add(), inputFile.length(), inputStream);
        System.out.println("Uploaded: " + uploadedFile.toString());
    } catch (Exception e) {

        e.printStackTrace();
    } finally {
        inputStream.close();
    }

    DbxEntry.WithChildren listing = client.getMetadataWithChildren("/FileApiDemo");
    System.out.println("Files in the root path:");
    for (DbxEntry child : listing.children) {
        System.out.println("    " + child.name + ": " + child.toString());
    }

    // download file
        FileOutputStream outputStream = new FileOutputStream("C:\\Dev\\downloadedfile.txt");
        try {
            DbxEntry.File downloadedFile = client.getFile("/FileApiDemo/fooup2.txt", null,  outputStream);
            System.out.println("Metadata: " + downloadedFile.toString());
        }     finally {
            outputStream.close();
        }

    }

} `

最佳答案

仔细检查myToken的值。您上面的注释代码大概可以为您提供有效的访问令牌，对吗？如果是这样，请确保在该流程结束时看到的访问令牌是您要保存并在后续运行中使用的令牌。

关于java - 使用Java卡在DropBox中的文件上传下载应用程序中，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/21831281/