我想使用Java阅读Google Spreadsheets,推荐的方法是使用Google Spreadsheets API。
当您想要使程序安全时问题就开始了,因此他们鼓励您使用OAuth 2.0。在official page中,他们展示了如何仅使用.NET执行此操作并说“ Java客户端库当前不支持OAuth 2.0 ”,并且他们提供了使用{{1或OAuth 1.0
直接使用电子邮件和密码。
这是肯定的吗?,没有办法通过Java进行OAuth 2.0身份验证,可能不是直接使用Java客户端库,而是通过具有特定参数的请求。
请感谢任何建议。
答案 0 :(得分:9)
我还发现developer docs为除OAuth2之外的所有内容提供了Java示例,这非常愚蠢。这是我用来使它工作的一些示例代码。为了完整起见,它在后面的部分中包含retrieving spreadsheets example。另请注意,您必须将所需的范围添加到Java DrEdit示例中,如下所示。
public class GSpreadsheets {
private static final String CLIENT_ID = "YOUR_CLIENT_ID";
private static final String CLIENT_SECRET = "YOUR_SECRET_ID";
private static final String REDIRECT_URI = "urn:ietf:wg:oauth:2.0:oob";
public static void main(String[] args) throws Exception {
if (CLIENT_ID.equals("YOUR_CLIENT_ID") || CLIENT_SECRET.equals("YOUR_SECRET_ID")) {
throw new RuntimeException(
"TODO: Get client ID and SECRET from https://cloud.google.com/console");
}
// get credentials similar to Java DrEdit example
// https://developers.google.com/drive/examples/java
HttpTransport httpTransport = new NetHttpTransport();
JsonFactory jsonFactory = new JacksonFactory();
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
httpTransport, jsonFactory, CLIENT_ID, CLIENT_SECRET,
Arrays.asList(DriveScopes.DRIVE,
"https://spreadsheets.google.com/feeds",
"https://docs.google.com/feeds"))
.setAccessType("online")
.setApprovalPrompt("auto").build();
String url = flow.newAuthorizationUrl().setRedirectUri(REDIRECT_URI).build();
System.out.println("Please open the following URL in your "
+ "browser then type the authorization code:");
System.out.println(" " + url);
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String code = br.readLine();
GoogleTokenResponse response = flow.newTokenRequest(code).setRedirectUri(REDIRECT_URI).execute();
GoogleCredential credential = new GoogleCredential().setFromTokenResponse(response);
// create the service and pass it the credentials you created earlier
SpreadsheetService service = new SpreadsheetService("MyAppNameHere");
service.setOAuth2Credentials(credential);
// Define the URL to request. This should never change.
URL SPREADSHEET_FEED_URL = new URL(
"https://spreadsheets.google.com/feeds/spreadsheets/private/full");
// Make a request to the API and get all spreadsheets.
SpreadsheetFeed feed = service.getFeed(SPREADSHEET_FEED_URL, SpreadsheetFeed.class);
List<SpreadsheetEntry> spreadsheets = feed.getEntries();
// Iterate through all of the spreadsheets returned
for (SpreadsheetEntry spreadsheet : spreadsheets) {
// Print the title of this spreadsheet to the screen
System.out.println(spreadsheet.getTitle().getPlainText());
}
}
}
答案 1 :(得分:3)
Google Data Java Client Library现在支持OAuth 2.0:
https://code.google.com/p/gdata-java-client/source/detail?r=505
不幸的是,库中没有完整的样本显示如何使用它。我建议检查这两个链接以汇总信息以使其工作:
答案 2 :(得分:1)
[编辑]
博客文章[google-spreadsheet-api]和OAuth2,代码为 http://soatutorials.blogspot.co.at/2013/08/google-spreadsheet-api-connecting-with.html
相关问题: OAuth2 authorization from Java/Scala using google gdata client API
[结束编辑]
我使用过:Google驱动 DrEdit 教程,完整示例演示了如何将OAuth 2.0与Drive配合使用。该代码适用于Google电子表格GData样式API。 (注意:不包括刷新令牌,但刷新令牌的工作方式正如您所期望的那样,所以不要太难添加。) -
额外注意:更好的文档API是Google-Apps-Script。