Java 谷歌日历：找不到com.Google.api.client.json.JsonFactory.fromInputStream

我正在开发一个SpringMVC应用程序，试图在其中集成日历功能。不幸的是，由于json错误，我陷入了身份验证阶段。我正在尝试使用过时的谷歌示例代码，所以我做了一些修改。请看一看。 错误日志：

java.lang.NoSuchMethodError: com.google.api.client.json.JsonFactory.fromInputStream(Ljava/io/InputStream;Ljava/lang/Class;)Ljava/lang/Object;
    com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets.load(GoogleClientSecrets.java:167)
    com.journaldev.spring.utility.OAuth.authorize(OAuth.java:73)

Oauth类，我在其中实现日历功能

public class OAuth {

    private static final String APPLICATION_NAME = "appname";

    private static final java.io.File DATA_STORE_DIR =
            new java.io.File(System.getProperty("user.home"), "" +
                    "/Store/calendar_sample");

    private static FileDataStoreFactory dataStoreFactory;

    private static HttpTransport httpTransport;

    private static final com.google.api.client.json.JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();

    private static com.google.api.services.calendar.Calendar client;

    static final java.util.List<Calendar> addedCalendarsUsingBatch = Lists.newArrayList();

    public void authorizeAndTest(){

        try {
            httpTransport = new NetHttpTransport();
            dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR);
            Credential credential = authorize();

            client = new com.google.api.services.calendar.Calendar.Builder(httpTransport,JSON_FACTORY,credential).setApplicationName(APPLICATION_NAME).build();

            showCalenders();
            addCalendarsUsingBatch();
            Calendar calendar = addCalendar();
            updateCalendar(calendar);
            addEvent(calendar);
            showEvents(calendar);
            deleteCalendarInBatch();
            deleteCalendar(calendar);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static Credential authorize() throws Exception{


        InputStream inputStream = new FileInputStream(new File("/home/akshay/c0cc3b4b7502.json"));


        GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY,inputStream);

Pom.xml

<dependencies>
    <dependency>
        <groupId>com.google.api.client</groupId>
        <artifactId>google-api-client-json</artifactId>
        <version>1.2.3-alpha</version>
    </dependency>

    <dependency>
        <groupId>com.google.http-client</groupId>
        <artifactId>google-http-client-jackson2</artifactId>
        <version>1.19.0</version>
    </dependency>


    <dependency>
        <groupId>com.google.apis</groupId>
        <artifactId>google-api-services-calendar</artifactId>
        <version>v3-rev35-1.13.2-beta</version>
    </dependency>

    <dependency>
        <groupId>com.google.oauth-client</groupId>
        <artifactId>google-oauth-client-java6</artifactId>
        <version>1.19.0</version>
    </dependency>

    <dependency>
        <groupId>com.google.gdata</groupId>
        <artifactId>core</artifactId>
        <version>1.47.1</version>
    </dependency>

    <dependency>
        <groupId>com.google.api.client</groupId>
        <artifactId>google-api-client-auth-oauth2</artifactId>
        <version>1.2.3-alpha</version>
    </dependency>

    <dependency>
        <groupId>com.google.api.client</groupId>
        <artifactId>google-api-client</artifactId>
        <version>1.4.1-beta</version>
    </dependency>

    <dependency>
        <groupId>com.google.http-client</groupId>
        <artifactId>google-http-client-jackson</artifactId>
        <version>1.19.0</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.security.oauth</groupId>
        <artifactId>spring-security-oauth2</artifactId>
        <version>2.0.3.RELEASE</version>
    </dependency>

---

只需在Pom.xml中的依赖项下方添加注释，然后重试：

    <!--dependency>
        <groupId>com.google.api.client</groupId>
        <artifactId>google-api-client-auth-oauth2</artifactId>
        <version>1.2.3-alpha</version>
    </dependency-->

不是这个：

<dependency>
    <groupId>com.google.api.client</groupId>
    <artifactId>google-api-client</artifactId>
    <version>1.4.1-beta</version>
</dependency>

com.google.api.client
谷歌api客户端
1.4.1-beta

---

希望这能对您有所帮助。

您需要考虑以下几点：

日历API不需要依赖项

com.google.gdata.core

。除非你需要另一个谷歌API，你可以删除它

您有两个

googlehttp客户端

的实现：

googlehttp客户端jackson

和

google-http-client-jackson2

。您需要删除其中一个

您正在使用不必要且太旧的依赖项，例如

google-api-client-auth-oauth2:1.2.3-alpha

和

google-api-client:1.4.1-beta

google api服务日历

和

google-http-client-jackson2

的版本不匹配。对于

google-http-client-jackson2:1.19.0

，您需要使用

google-api服务日历：v3-rev121-1.19.0

。请注意，HTTP客户端的版本与日历客户端版本的后缀相同

如果要使用

LocalServerReceiver

类，则必须将

google-oauth-client-java6

依赖项替换为

google-oauth-client-jetty

最后，这里是我的依赖项工作集和稍微更新的

OAuth

类：

    <dependency>
        <groupId>com.google.apis</groupId>
        <artifactId>google-api-services-calendar</artifactId>
        <version>v3-rev121-1.19.0</version>
    </dependency>

    <dependency>
        <groupId>com.google.http-client</groupId>
        <artifactId>google-http-client-jackson</artifactId>
        <version>1.19.0</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.security.oauth</groupId>
        <artifactId>spring-security-oauth2</artifactId>
        <version>2.0.3.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>com.google.oauth-client</groupId>
        <artifactId>google-oauth-client-jetty</artifactId>
        <version>1.19.0</version>
    </dependency>

---

我仍然困在这个问题上，真的需要一些帮助。非常感谢。使用

GoogleAuthorizationCodeFlow.Builder

的构造函数，它接受两个参数

String clientId

和

String clientSecret

，而不是json，这可能会对您有所帮助。正如您所说，这没有帮助，我注释掉了google-api-client-auth-oauth2。同样的错误。你能分享我导入OAuth类的详细信息吗。给你：如果你想要pom.xml：只需检查传递的inputStream而不是Reader。这是针对GoogleClientSecrets的，当我这么做时，我遇到了以下问题，检查屏幕截图：这帮助我解决了这个问题，但我认为这个文件阅读器导致了问题。你能检查一下这个错误吗：我已经添加了错误日志，它发生在if循环中。你能检查一下吗？我创建了一个客户端Id，它有客户端Id和密码，你知道我可以在哪里粘贴它而不是使用JSON文件，这样我就可以运行这个代码了。非常感谢。谢谢，它成功了，Stackoverflow说我可以在17小时内提供我的赏金，我明天会做的。非常感谢。

<dependency>
    <groupId>com.google.api.client</groupId>
    <artifactId>google-api-client</artifactId>
    <version>1.4.1-beta</version>
</dependency>

    <dependency>
        <groupId>com.google.apis</groupId>
        <artifactId>google-api-services-calendar</artifactId>
        <version>v3-rev121-1.19.0</version>
    </dependency>

    <dependency>
        <groupId>com.google.http-client</groupId>
        <artifactId>google-http-client-jackson</artifactId>
        <version>1.19.0</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.security.oauth</groupId>
        <artifactId>spring-security-oauth2</artifactId>
        <version>2.0.3.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>com.google.oauth-client</groupId>
        <artifactId>google-oauth-client-jetty</artifactId>
        <version>1.19.0</version>
    </dependency>

public class OAuth {

    private static final String APPLICATION_NAME = "APPNAME";

    private static final java.io.File DATA_STORE_DIR =
            new java.io.File(System.getProperty("user.home"), "" +
                    "/Store/calendar_sample");

    private static FileDataStoreFactory dataStoreFactory;

    private static HttpTransport httpTransport;

    private static final com.google.api.client.json.JsonFactory JSON_FACTORY = new JacksonFactory();

    private static com.google.api.services.calendar.Calendar client;


    public void authorizeAndTest() {

        try {
            httpTransport = new NetHttpTransport();
            dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR);
            Credential credential = authorize();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static Credential authorize() throws Exception {


        FileReader credentialsReader = new FileReader(new File("client_secret_47576556653-go0fkf4c56dohm6m16s2400qed5ps410.apps.googleusercontent.com.json"));

// It gives me an error for line below.
        GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, credentialsReader);
        if (clientSecrets.getDetails().getClientId().startsWith("Enter")
                || clientSecrets.getDetails().getClientSecret().startsWith("Enter ")) {
            System.out.println(
                    "Enter Client ID and Secret from https://code.google.com/apis/console/?api=calendar "
                            + "into calendar-cmdline-sample/src/main/resources/client_secrets.json");
            return null;
        }

        AuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(httpTransport, JSON_FACTORY, clientSecrets,
                Collections.singleton(CalendarScopes.CALENDAR)).setDataStoreFactory(dataStoreFactory).build();

        return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user@gmail.com");
    }