Dropbox Core API JAVA授权代码 [英] Dropbox Core API JAVA Authorization Code

问题描述

使用保管箱核心api教程我能够上传文件。

Using the dropbox core api tutorial I am able to upload a file.

但是，我的问题是此 ---也就是说，一旦我有了授权码并注释掉了用户身份验证行，就不必手动进行操作了。每次我使用保管箱时，重新授权都会出现以下错误：

However, my question is an exact replica of this SO post--- That is, once I have my authorization code and comment out the user auth lines so that I dont have to manually re-authorize approval every time I use dropbox I get the following errors:

Exception in thread "main" com.dropbox.core.DbxException$BadRequest: {"error_description": "code has already been used", "error": "invalid_grant"}

OR

Exception in thread "main" com.dropbox.core.DbxException$BadRequest: {"error_description": "code has expired (within the last hour)", "error": "invalid_grant"}

我很肯定我有正确的授权代码。

I am positive I have the correct authorization code.

我希望我遗漏了一些东西，否则，如果每次使用API​​都要进行人工干预，API的意义是什么？

I hope that I'm missing something, else whats the point of an API if you have to induce manual intervention every time you use it?

编辑：我的确切代码（密钥已被加密）

My Exact Code (keys have been scrambled)

import com.dropbox.core.*;
import java.io.*;
import java.util.Locale;

public class DropboxUpload {
    public static void main(String[] args) throws IOException, DbxException {
        // Get your app key and secret from the Dropbox developers website.
        final String APP_KEY = "2po9b49whx74h67";
        final String APP_SECRET = "m98f734hnr92kmh";

        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();
        //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("VtwxzitUoI8DDDLx0PlLut5Gjpw3");
        String accessToken = authFinish.accessToken;

        DbxClient client = new DbxClient(config, accessToken);

        System.out.println("Linked account: " + client.getAccountInfo().displayName);

        File inputFile = new File("/home/dropboxuser/Documents/test.txt");
        FileInputStream inputStream = new FileInputStream(inputFile);
        try {
            DbxEntry.File uploadedFile = client.uploadFile("/Public/test.txt",
                DbxWriteMode.add(), inputFile.length(), inputStream);
            System.out.println("Uploaded: " + uploadedFile.toString());
        } finally {
            inputStream.close();
        }

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

        FileOutputStream outputStream = new FileOutputStream("test.txt");
        try {
            DbxEntry.File downloadedFile = client.getFile("/Public/test.txt", null,
                outputStream);
            System.out.println("Metadata: " + downloadedFile.toString());
        } finally {
            outputStream.close();
        }
    }
}

推荐答案

您应该存储和重用访问令牌，而不是授权码。

You should be storing and reusing the access token, not the authorization code.

因此，执行一次之后：

字符串accessToken = authFinish.accessToken;

您应该将整个内容替换为

You should just replace the whole thing with

String accessToken =<您已经拥有的那个>;

顺便说一句，如果您只需要自己的帐户的访问令牌，则可以通过单击一个按钮来生成一个令牌！请参阅 https：// www。 dropbox.com/developers/blog/94/generate-an-access-token-for-您自己的帐户。

BTW, if you just need an access token for your own account, you can generate one with the click of a button! See https://www.dropbox.com/developers/blog/94/generate-an-access-token-for-your-own-account.

这篇关于Dropbox Core API JAVA授权代码的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！