java - Spring Boot 和 Android 中的 Google Calendar API 集成

Question

我在 Spring Boot 项目中运行 Google Calendar API 时遇到问题。这是一个在实时服务器上运行的企业项目

GoogleCalendarService.java

@Service
@Slf4j
public class GoogleCalenderService {

private static final List<String> SCOPES = Collections.singletonList(CalendarScopes.CALENDAR);
private static final String CREDENTIALS_FILE_PATH = "/RP_OAuth.json";
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
private static final String TOKENS_DIRECTORY_PATH = "tokens";
private static final String APPLICATION_NAME = "Google Calendar API Java Quickstart";
private GoogleAuthorizationCodeFlow flow;
private NetHttpTransport HTTP_TRANSPORT;


public String getCredentials(String candidateEmail,String recruiterEmail,long startTimeStamp, long endTimeStamp) {
    // Load client secrets.

    try {
        AuthorizationCodeRequestUrl authorizationUrl;
        authorizationUrl = getFlow().newAuthorizationUrl()
                .setRedirectUri("http://localhost:8948/Callback/"
                        +startTimeStamp+
                        "/"+endTimeStamp+
                        "/"+recruiterEmail+
                        "/"+candidateEmail
                );


        return authorizationUrl.build();

    } catch (Exception e) {
        log.error(e.getMessage());
    }

    return null;
}

public GoogleAuthorizationCodeFlow getFlow() {
    if (flow == null) {
        try {
            HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();

            InputStream in = GoogleCalenderService.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
            if (in == null) {
                throw new FileNotFoundException("Resource not found: " + CREDENTIALS_FILE_PATH);
            }
            GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));

            flow = new GoogleAuthorizationCodeFlow.Builder(
                    HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
                    .setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
                    .setAccessType("offline")
                    .build();
        } catch (Exception e) {
            log.error(e.getMessage());
        }
    }

    return flow;
}

public String createCredentials(String code,long startTimeStamp, long endTimeStamp, String recruiterEmail,
                              String candidateEmail) {

    try {
        TokenResponse response = getFlow().newTokenRequest(code).setRedirectUri("http://localhost:8948/Callback/"
                +startTimeStamp+
                "/"+endTimeStamp+
                "/"+recruiterEmail+
                "/"+candidateEmail
        )
                .execute();
        Credential credential = flow.createAndStoreCredential(response, "userID");

        Calendar service = new Calendar.Builder(HTTP_TRANSPORT, JSON_FACTORY, credential)
                .setApplicationName(APPLICATION_NAME)
                .build();

        Event event = new Event()
                .setSummary("You have a Scheduled Interview")
                .setDescription("Please be present on the scheduled interview date");

        DateTime startDateTime = new DateTime(startTimeStamp);
        EventDateTime start = new EventDateTime()
                .setDateTime(startDateTime);
        event.setStart(start);

        DateTime endDateTime = new DateTime(endTimeStamp);
        EventDateTime end = new EventDateTime()
                .setDateTime(endDateTime);
        event.setEnd(end);

        String[] recurrence = new String[]{"RRULE:FREQ=DAILY;COUNT=2"};
        event.setRecurrence(Arrays.asList(recurrence));

        EventAttendee[] attendees = new EventAttendee[]{
                new EventAttendee().setEmail(recruiterEmail),
                new EventAttendee().setEmail(candidateEmail),
        };
        event.setAttendees(Arrays.asList(attendees));

        EventReminder[] reminderOverrides = new EventReminder[]{
                new EventReminder().setMethod("email").setMinutes(24 * 60),
                new EventReminder().setMethod("popup").setMinutes(10),
        };
        Event.Reminders reminders = new Event.Reminders()
                .setUseDefault(false)
                .setOverrides(Arrays.asList(reminderOverrides));
        event.setReminders(reminders);

        String calendarId = "primary";
        event = service.events().insert(calendarId, event).execute();
        System.out.printf("Event created: %s\n", event.getHtmlLink());

        return event.getHtmlLink();

    } catch (IOException e) {
        log.error(e.getMessage());
        return  null;
    }

}



 }

这是我收到的错误消息

java.lang.IllegalStateException: 'url' 未设置在 org.springframework.util.Assert.state(Assert.java:73) ~[spring-core-5.2.2.RELEASE.jar:5.2.2.RELEASE] 在 org .springframework.web.servlet.view.RedirectView.createTargetUrl(RedirectView.java:328) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE] at org.springframework.web.servlet.view。 RedirectView.renderMergedOutputModel(RedirectView.java:307) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE] at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:316 ) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE] at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1373) ~[spring-webmvc-5.2.2. RELEASE.jar:5.2.2.RELEASE] 在 org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1118) ~[spring-webmvc-5.2.2.RELEASE.jar:5。2.2.RELEASE] 在 org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE] 在 org.springframework.web。 servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006 ) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.2. RELEASE.jar:5.2.2.RELEASE] 在 javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.29.jar:9.0.29] 在 org.springframework。 web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.2.RELEASE.jar:5.2.2.RELEASE] at javax.servlet.http.HttpServlet。服务（HttpServlet.java:741）~[tomcat-embed-core-9.0.29.jar:9.0.29] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:231）~[tomcat-embed -core-9.0.29.jar:9.0.29] 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29]在 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.29.jar:9.0.29] 在 org.apache.catalina.core.ApplicationFilterChain。 internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.29.jar:9.0.29] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed -core-9.0.29.jar:9.0.29] 在 org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE] 在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE] 在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.29.jar:9.0.29] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain .java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2. 2.RELEASE.jar:5.2.2.RELEASE] 在 org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE ] 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.29.jar:9.0.29] 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29] 在 org.springframework.web.filter.CharacterEncodingFilter。 doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.2.RELEASE.jar:5.2.2.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring -web-5.2.2.RELEASE.jar:5.2.2.RELEASE] 在 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.29.jar: 9.0.29] 在 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.29.jar:9.0.29] 在 org.apache.catalina.core。 StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.29.jar:9.0.29] 在 org.apache.catalina.core。StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.29.jar:9.0.29] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526) ~[tomcat -embed-core-9.0.29.jar:9.0.29] 在 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.29.jar:9.0. 29] 在 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.29.jar:9.0.29] 在 org.apache.catalina.core.StandardEngineValve。调用（StandardEngineValve.java:74）~[tomcat-embed-core-9.0.29.jar:9.0.29] at org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:343）~[tomcat-embed -core-9.0.29.jar:9.0.29] 在 org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) ~[tomcat-embed-core-9.0.29.jar:9.0.29]在 org.apache.coyote。AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.29.jar:9.0.29] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:860) ~[tomcat -embed-core-9.0.29.jar:9.0.29] 在 org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1591) ~[tomcat-embed-core-9.0.29. jar:9.0.29] 在 org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.29.jar:9.0.29] 在 java.base/ java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na ] 在 org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.29.jar:9.0.29] 在 java.base/java.lang .Thread.run（线程.java：第834章~

标签： javaandroidspring-bootgoogle-calendar-apigoogle-authentication

Answer 1

您的浏览器正在寻找地址 localhost:8948。如果您的浏览器没有在实时服务器上运行，它一定会失败。在我看来，您应该从请求中获取主机并使用该主机而不是 localhost，这应该可以使其正常工作。