尝试通过谷歌驱动器API获取文档元数据时出现404错误 [英] 404 Error when trying to get document metadata via the google drive API
问题描述
我使用全域代表团进行身份验证。
我回来了看起来像这样的谷歌驱动器服务： 这是我试图检索的文件的链接： 我将这个值作为文件ID传递： 当代码到达这一行时： 我得到这个错误： 当我尝试使用工具底部此页，如果我打开Oauth 2.0，我会得到返回一个200响应代码和有关该文件的信息。 这里是我获得驱动器服务的地方： 我有这些变量定义如下： 这里是我试图获取文件元数据的地方： 任何人都可以提供关于可能发生的事情的任何提示吗？ EDITED 一个红色的鲱鱼，事实证明。缺少的关键是有效的用户的电子邮件地址。首先，运行代码： 缺少的行是 使用有效的用户，我得到了文件详细信息。 / p> 使用无效用户时，我得到了 而且，对于没有访问权限的用户或者行不是set，我得到了 注意：请确保您遵循执行Google Apps域范围授权，因为这是我最终获得解决方案和所有正确密钥的地方（不需要像我最初想象的那样多！） I am authenticating using domain-wide delegation. I am getting back the google drive service that looks like this: This is the link to the file I'm trying to retrieve: I am passing in this value as the file ID: When the code gets to this line: I get this error: When I try to find the file in question using the tool at the bottom of this page, if I turn on Oauth 2.0, I get back a 200 response code and information about the file in question. I've looked at many similar questions on here including this question, but I can't see anything wrong in the way that I've set up my permissions: Here is where I get the drive service: I have these variables defined as follows: Here is where I am trying to get the file metadata: Can anyone give me any hints as to what might be going on? EDITED All the security was a red herring, it turns out. The key thing missing was a valid user's email address. First, functioning code: The missing line was With a valid user, I got the file details. With an invalid user, I got And, with a user who did not have access or when the line was not set, I got NOTE: Just be sure you follow each little step at Perform Google Apps Domain-Wide Delegation of Authority since that is where I ended up getting the solution and all the right keys (didn't need as many as I initially thought!) 这篇关于尝试通过谷歌驱动器API获取文档元数据时出现404错误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！ com.google.api.services.drive.Drive@6ebd27b9
https://docs.google.com/a /rmi.org/document/d/1JRS8SLzaAD2U4cG-GbDMbVN25Dp6f_uUYyl6ERMPAno/edit
1JRS8SLzaAD2U4cG-GbDMbVN25Dp6f_uUYyl6ERMPAno 。
File file = service.files（ ）.get（fileId）.execute（）;
发生错误：com.google.api.client.googleapis.json.GoogleJsonResponseException：404 OK
{
code：404，
errors：[{
domain：global，
message：File not found：1JRS8SLzaAD2U4cG-GbDMbVN25Dp6f_uUYyl6ERMPAno，
reason：notFound
$]]，
未选中双腿OAuth访问控制允许访问所有API >
public static Drive getDriveService ）throws GeneralSecurityException，
IOException，URISyntaxException {
HttpTransport httpTransport = new NetHttpTransport（）;
JacksonFactory jsonFactory = new JacksonFactory（）;
GoogleCredential凭证=新GoogleCredential.Builder（）
.setTransport（httpTransport）
.setJsonFactory（jsonFactory）
.setServiceAccountId（SERVICE_ACCOUNT_EMAIL）
//.setServiceAccountScopes(DriveScopes .DRIVE）
.setServiceAccountScopes（SCOPE）
.setServiceAccountPrivateKeyFromP12File（
new java.io.File（SERVICE_ACCOUNT_PKCS12_FILE_PATH））
.build（）;
Drive service = new Drive.Builder（httpTransport，jsonFactory，null）
.setHttpRequestInitializer（凭证）.build（）;
退货服务;
/ **服务帐户的电子邮件* /
private static final String SERVICE_ACCOUNT_EMAIL =xxxxxxxxxxxxxxxxxxxxxxxxxxxxx@developer.gserviceaccount.com;
**服务帐户私钥文件的路径* /
private static final String SERVICE_ACCOUNT_PKCS12_FILE_PATH =/actualpathhere/HowToListing/war/resources/actualpd12filename.p12;
private static final List< String> SCOPE = Arrays.asList（https://www.googleapis.com/auth/drive.readonly）;
private static List< File> retrieveAllFiles（Drive service）抛出IOException {
List< File> result = null;
尝试{
字符串fileId =1JRS8SLzaAD2U4cG-GbDMbVN25Dp6f_uUYyl6ERMPAno;
File file = service.files（）。get（fileId）.execute（）;
System.out.println（Title：+ file.getTitle（））;
System.out.println（Description：+ file.getDescription（））;
System.out.println（MIME type：+ file.getMimeType（））;
$ b $ catch（IOException e）{
System.out.println（发生错误：+ e）;
}
返回结果;
}
import java.io.IOException;
import java.net.URL;
import java.security.GeneralSecurityException;
import java.util.Arrays;
导入com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;
导入com.google.api.services.drive.Drive;
导入com.google.api.services.drive.DriveScopes;
导入com.google.api.services.drive.model.File;
公共类DriveCommandLine {
私有静态字符串SERVICE_ACCOUNT_EMAIL =11111-abc123@developer.gserviceaccount.com;
private static final String SERVICE_ACCOUNT_PKCS12_FILE_NAME =a_file_name.p12;
private static String SERVICE_ACCOUNT_PKCS12_FILE_PATH;
public static void main（String [] args）throws IOException {
try {
//我为p12文件做了这些事b / c我在做这件事时遇到了麻烦全部来自命令行（第一次）
URL位置= DriveCommandLine.class.getProtectionDomain（）。getCodeSource（）。getLocation（）;
SERVICE_ACCOUNT_PKCS12_FILE_PATH = location.getFile（）+ SERVICE_ACCOUNT_PKCS12_FILE_NAME;
驱动器驱动器= DriveCommandLine.getDriveService（valid-user@example.com）;
DriveCommandLine.printFile（驱动器，THE_ID_OF_THE_FILE）;
} catch（GeneralSecurityException e）{
// TODO自动生成的catch块
e.printStackTrace（）;
}
}
//从https://developers.google.com/drive/web/delegation#instantiate_a_drive_service_object
/ **
*构建并返回授权服务帐户
*代表给定用户的Drive服务对象。
*
* @param userEmail用户的电子邮件。
* @return准备发出请求的驱动器服务对象。
* /
public static Drive getDriveService（String userEmail）throws GeneralSecurityException，IOException {
HttpTransport httpTransport = new NetHttpTransport（）;
JacksonFactory jsonFactory = new JacksonFactory（）;
GoogleCredential凭证=新的GoogleCredential.Builder（）。setTransport（httpTransport）
.setJsonFactory（jsonFactory）
.setServiceAccountId（SERVICE_ACCOUNT_EMAIL）
.setServiceAccountScopes（Arrays.asList（new String [ ] {
.setServiceAccountUser（userEmail）
.setServiceAccountPrivateKeyFromP12File（new java.io.File（SERVICE_ACCOUNT_PKCS12_FILE_PATH））
.build（）;
Drive service = new Drive.Builder（httpTransport，jsonFactory，null）.setHttpRequestInitializer（credential）.build（）;
退货服务;
}
//从https://developers.google.com/drive/v2/reference/files/get
/ **
中的代码框中打印文件元数据。
*
* @param服务Drive API服务实例。
* @param fileId要打印元数据的文件的ID。
* /
private static void printFile（Drive service，String fileId）{
try {
File file = service.files（）。get（fileId）。执行（）;
System.out.println（Title：+ file.getTitle（））;
System.out.println（Description：+ file.getDescription（））;
System.out.println（MIME type：+ file.getMimeType（））;
catch（IOException e）{
System.out.println（发生错误：+ e）;
}
}
}
setServiceAccountUser（userEmail）这是一个有效的系统用户。
发生错误：com .google.api.client.auth.oauth2.TokenResponseException：400错误请求
{
错误：invalid_grant，
error_description：不是有效的电子邮件。
}
发生了一个错误：com.google.api.client.googleapis.json.GoogleJsonResponseException：404 Not Found
{
code：404，
errors：[{
domain：global，
message：File not found：THE_FILE_ID ，
reason：notFound
}]，
message：File not found：THE_FILE_ID
}
com.google.api.services.drive.Drive@6ebd27b9https://docs.google.com/a/rmi.org/document/d/1JRS8SLzaAD2U4cG-GbDMbVN25Dp6f_uUYyl6ERMPAno/edit1JRS8SLzaAD2U4cG-GbDMbVN25Dp6f_uUYyl6ERMPAno.File file = service.files().get(fileId).execute();An error occured: com.google.api.client.googleapis.json.GoogleJsonResponseException: 404 OK
{
"code" : 404,
"errors" : [ {
"domain" : "global",
"message" : "File not found: 1JRS8SLzaAD2U4cG-GbDMbVN25Dp6f_uUYyl6ERMPAno",
"reason" : "notFound"
} ],
public static Drive getDriveService() throws GeneralSecurityException,
IOException, URISyntaxException {
HttpTransport httpTransport = new NetHttpTransport();
JacksonFactory jsonFactory = new JacksonFactory();
GoogleCredential credential = new GoogleCredential.Builder()
.setTransport(httpTransport)
.setJsonFactory(jsonFactory)
.setServiceAccountId(SERVICE_ACCOUNT_EMAIL)
//.setServiceAccountScopes(DriveScopes.DRIVE)
.setServiceAccountScopes(SCOPE)
.setServiceAccountPrivateKeyFromP12File(
new java.io.File(SERVICE_ACCOUNT_PKCS12_FILE_PATH))
.build();
Drive service = new Drive.Builder(httpTransport, jsonFactory, null)
.setHttpRequestInitializer(credential).build();
return service;
/** Email of the Service Account */
private static final String SERVICE_ACCOUNT_EMAIL = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxx@developer.gserviceaccount.com";
/** Path to the Service Account's Private Key file */
private static final String SERVICE_ACCOUNT_PKCS12_FILE_PATH = "/actualpathhere/HowToListing/war/resources/actualpd12filename.p12";
private static final List<String> SCOPE = Arrays.asList("https://www.googleapis.com/auth/drive.readonly");
private static List<File> retrieveAllFiles(Drive service) throws IOException {
List<File> result = null;
try {
String fileId = "1JRS8SLzaAD2U4cG-GbDMbVN25Dp6f_uUYyl6ERMPAno";
File file = service.files().get(fileId).execute();
System.out.println("Title: " + file.getTitle());
System.out.println("Description: " + file.getDescription());
System.out.println("MIME type: " + file.getMimeType());
} catch (IOException e) {
System.out.println("An error occured: " + e);
}
return result;
}
import java.io.IOException;
import java.net.URL;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;
public class DriveCommandLine {
private static String SERVICE_ACCOUNT_EMAIL = "11111-abc123@developer.gserviceaccount.com";
private static final String SERVICE_ACCOUNT_PKCS12_FILE_NAME = "a_file_name.p12";
private static String SERVICE_ACCOUNT_PKCS12_FILE_PATH;
public static void main(String[] args) throws IOException {
try {
//I did this stuff for the p12 file b/c I was having trouble doing this all from command line (first time)
URL location = DriveCommandLine.class.getProtectionDomain().getCodeSource().getLocation();
SERVICE_ACCOUNT_PKCS12_FILE_PATH = location.getFile() + SERVICE_ACCOUNT_PKCS12_FILE_NAME;
Drive drive = DriveCommandLine.getDriveService("valid-user@example.com");
DriveCommandLine.printFile(drive, "THE_ID_OF_THE_FILE");
} catch (GeneralSecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//From https://developers.google.com/drive/web/delegation#instantiate_a_drive_service_object
/**
* Build and returns a Drive service object authorized with the service accounts
* that act on behalf of the given user.
*
* @param userEmail The email of the user.
* @return Drive service object that is ready to make requests.
*/
public static Drive getDriveService(String userEmail) throws GeneralSecurityException, IOException {
HttpTransport httpTransport = new NetHttpTransport();
JacksonFactory jsonFactory = new JacksonFactory();
GoogleCredential credential = new GoogleCredential.Builder().setTransport(httpTransport)
.setJsonFactory(jsonFactory)
.setServiceAccountId(SERVICE_ACCOUNT_EMAIL)
.setServiceAccountScopes(Arrays.asList(new String[] {DriveScopes.DRIVE}))
.setServiceAccountUser(userEmail)
.setServiceAccountPrivateKeyFromP12File(new java.io.File(SERVICE_ACCOUNT_PKCS12_FILE_PATH))
.build();
Drive service = new Drive.Builder(httpTransport, jsonFactory, null).setHttpRequestInitializer(credential).build();
return service;
}
// From the code box at https://developers.google.com/drive/v2/reference/files/get
/**
* Print a file's metadata.
*
* @param service Drive API service instance.
* @param fileId ID of the file to print metadata for.
*/
private static void printFile(Drive service, String fileId) {
try {
File file = service.files().get(fileId).execute();
System.out.println("Title: " + file.getTitle());
System.out.println("Description: " + file.getDescription());
System.out.println("MIME type: " + file.getMimeType());
} catch (IOException e) {
System.out.println("An error occured: " + e);
}
}
}
setServiceAccountUser(userEmail) which is for a valid system user.An error occured: com.google.api.client.auth.oauth2.TokenResponseException: 400 Bad Request
{
"error" : "invalid_grant",
"error_description" : "Not a valid email."
}
An error occured: com.google.api.client.googleapis.json.GoogleJsonResponseException: 404 Not Found
{
"code" : 404,
"errors" : [ {
"domain" : "global",
"message" : "File not found: THE_FILE_ID",
"reason" : "notFound"
} ],
"message" : "File not found: THE_FILE_ID"
}
