如何解决您如何通过Java使用服务帐户访问Google表格?
我正在尝试从服务帐户访问Google表格(该服务帐户可以访问该表格)。但是我有一个问题,包括official docs在内的所有文档都指向从1.7开始不推荐使用的GoogleCredential
。弃用说您使用了google-auth-library
库,这就是我正在做的事情:
val googleCredentials = ServiceAccountCredentials
.fromStream(new FileInputStream(CREDENTIALS_FILE_PATH))
.createScoped(SCOPES)
googleCredentials.refresh()
,但是变量的类型为GoogleCredentials
,而函数Sheets.Builder
不接受此变量为有效的HttpRequestInitializer
。因此,我不得不使用以下方法来弃用不推荐使用的类:
val token = googleCredentials.getAccessToken.getTokenValue
val credential = new GoogleCredential().setAccessToken(token)
通过这种解决方法,我可以访问Google表格,但是我敢肯定有一种正确的方法,而无需使用不推荐使用的库。
有人知道这样做的正确方法是什么吗?
将完整代码段留在此处作为参考。
package drivers
import java.io.FileInputStream
import java.util.Collections
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport
import com.google.api.client.json.jackson2.JacksonFactory
import com.google.api.services.sheets.v4.{Sheets,SheetsScopes}
import com.google.auth.oauth2.ServiceAccountCredentials
import com.typesafe.config.ConfigFactory
object TestDriver {
def main(args: Array[String]): Unit = {
val config = ConfigFactory.load()
val spreadsheetId = config.getString("spreadsheetId")
val CREDENTIALS_FILE_PATH = config.getString("google_application_credentials")
val SCOPES = Collections.singletonList(SheetsScopes.SPREADSHEETS_READONLY)
val JSON_FACTORY = JacksonFactory.getDefaultInstance
val APPLICATION_NAME = "my-app"
val googleCredentials = ServiceAccountCredentials
.fromStream(new FileInputStream(CREDENTIALS_FILE_PATH))
.createScoped(SCOPES)
googleCredentials.refresh()
val token = googleCredentials.getAccessToken.getTokenValue
val credential = new GoogleCredential().setAccessToken(token)
val httpTransport = GoogleNetHttpTransport.newTrustedTransport
val service = new Sheets.Builder(httpTransport,JSON_FACTORY,credential)
.setApplicationName(APPLICATION_NAME)
.build()
val range = "Sheet1!A1:D1"
val response = service.spreadsheets().values().get(spreadsheetId,range).execute()
val values = response.getValues
values.forEach(println)
}
解决方法
- 信息令人困惑,Google Auth Library即recommended to use,因为弃用包括
google-auth-library-oauth2
库 - 换句话说,您仍然可以使用
GoogleCredential
,它仍然是documentation中推荐的方法:
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
GoogleCredential credential = GoogleCredential.fromStream(new FileInputStream(CREDENTIALS_FILE_PATH))
.createScoped(Collections.singleton(SCOPES));
- 或者,您也可以从.p12文件构建凭据:
GoogleCredential credential = new GoogleCredential.Builder()
.setTransport(httpTransport)
.setJsonFactory(JSON_FACTORY)
.setServiceAccountId(emailAddress)
.setServiceAccountPrivateKeyFromP12File(new File("MyProject.p12"))
.setServiceAccountScopes(Collections.singleton(YOUR SCOPE))
.build();
- 但是,如果您确实想使用
GoogleCredentials
并遇到HttpRequestInitializer
的问题,可以使用HttpCredentialsAdapter
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