将“ Basic Gradle Build”中的“ Google-Sheets Writer” Java应用程序放入Docker映像/容器

Question

我是使用Docker的新手。我在Gradle Build中有Google Sheet的“ QuickStart”教程Java程序的修改版（已修改为写入几个单元格而不是读取单元格，Sheet ID也已更改...原始的Quickstart链接在此处：https://developers.google.com/sheets/api/quickstart/java）。 Java程序可以独立运行，但是我打算编写一个Dockerfile，它将成功地从我目前拥有的Gradle Build中构建映像，因此可以在容器中运行。由于Dockerfile语法具有细微差别和通用性，并且因为Google Sheets Gradle Build具有Google依赖关系，所以我在弄清楚该怎么做时遇到了麻烦。请注意，原始应用程序使用“基本gradle构建”（您键入“ gradle init --type basic”进行构建），并且Java代码位于src / main / java目录中，同时包含必要的certificate.json文件（包含我的客户ID和密码，以便Google表格可以正常使用）位于src / main / resources中。我也在使用Gradle 5.2.1。 这是Java代码...

import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.sheets.v4.Sheets;
import com.google.api.services.sheets.v4.SheetsScopes;
import com.google.api.services.sheets.v4.model.ValueRange;
import com.google.api.services.sheets.v4.model.UpdateValuesResponse;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.Collections;
import java.util.List;
import java.util.Arrays;
import java.util.ArrayList;

public class SheetsQuickstart {
private static final String APPLICATION_NAME = "Google Sheets API Java Quickstart";
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
private static final String TOKENS_DIRECTORY_PATH = "tokens";

/**
 * Global instance of the scopes required by this quickstart.
 * If modifying these scopes, delete your previously saved tokens/ folder.
 */
private static final List<String> SCOPES = Collections.singletonList(SheetsScopes.SPREADSHEETS);
private static final String CREDENTIALS_FILE_PATH = "/credentials.json";

/**
 * Creates an authorized Credential object.
 * @param HTTP_TRANSPORT The network HTTP Transport.
 * @return An authorized Credential object.
 * @throws IOException If the credentials.json file cannot be found.
 */
private static Credential getCredentials(final NetHttpTransport HTTP_TRANSPORT) throws IOException {
    // Load client secrets.
    InputStream in = SheetsQuickstart.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
    GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));

    // Build flow and trigger user authorization request.
    GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
            HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
            .setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
            .setAccessType("offline")
            .build();
    LocalServerReceiver receiver = new LocalServerReceiver.Builder().setPort(8888).build();
    //System.out.println("The getCredentials will be returned");
    return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");
}

//Writes a few basic things to cells in a google sheet



public static void main(String... args) throws IOException, GeneralSecurityException {
    // Build a new authorized API client service.
    final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
    final String spreadsheetId = "16WoDySciZRhD3QSH2_V1bk5kf_IFCcrPe49NE8WRxVg";


Sheets service = new Sheets.Builder(HTTP_TRANSPORT, JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
    .setApplicationName(APPLICATION_NAME)
    .build();

ValueRange body = new ValueRange().setValues(getData());


UpdateValuesResponse result =
    service.spreadsheets().values().update(spreadsheetId, "B1", body)
            .setValueInputOption("RAW")
            .execute();

}




public static List<List<Object>> getData() {

 List<Object> data1 = new ArrayList<Object>();
 data1.add("test1");
 data1.add("test2");
 data1.add("Row");

 List<Object> data2 = new ArrayList<Object>();
 data2.add("test3");
 data2.add("test4");
 data2.add("test5");

 List<Object> data3 = new ArrayList<Object>();
 data3.add("test6");

 List<List<Object>> data = new ArrayList<List<Object>>();
 data.add(data1);
 data.add(data2);
 data.add(data3);

 return data;

 }


 }

我的build.gradle文件看起来像这样...

apply plugin: 'java'
apply plugin: 'application'

mainClassName = 'SheetsQuickstart'
sourceCompatibility = 1.7
targetCompatibility = 1.7
version = '1.0'

repositories {
mavenCentral()
}

dependencies {
compile 'com.google.api-client:google-api-client:1.23.0'
compile 'com.google.oauth-client:google-oauth-client-jetty:1.23.0'
compile 'com.google.apis:google-api-services-sheets:v4-rev516-1.23.0'
}

同样，我使用了“ grovvy basic gradle build”，目录结构可以在开头附近的https://guides.gradle.org/creating-new-gradle-builds/处找到（也我在gradle目录的根目录中添加了src / main目录）。如果要“构建”此gradle构建，我这样做的最佳选择是什么？它仅需要一个dockerfile，是否有一个示例说明？我如何处理这个问题根本上有什么不对吗？谢谢。