java.lang.NoClassDefFoundError: java/awt/Desktop in JDK 1.7

Question

我正在尝试使用 Gmail API，但我遇到了这个运行时间异常：

java.lang.NoClassDefFoundError: java/awt/Desktop

它出现在这里（在最后一行）：

    InputStream stream = ReadMail.class.getResourceAsStream("/client_secret.json");
    Reader clientSecretReader = new InputStreamReader(stream);
    GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(ReadMail.JSON_FACTORY, clientSecretReader);

    GoogleAuthorizationCodeFlow flow =
            new GoogleAuthorizationCodeFlow.Builder(
                    ReadMail.HTTP_TRANSPORT, ReadMail.JSON_FACTORY, clientSecrets, ReadMail.SCOPES)
                    .setDataStoreFactory(ReadMail.DATA_STORE_FACTORY)
                    .setAccessType("offline")
                    .build();


    AuthorizationCodeInstalledApp authCodeInstalledApp = new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver());
    Credential credential = authCodeInstalledApp.authorize("user");

此代码位于 AsyncTask 的 doInBackground() 方法中。

我已经检查 Android Studio 配置为使用 JDK 1.7.

为什么会发生这种情况，我该如何解决？

Answer 1

Android不支持全部JDK类，只支持一个subset and java.awt is not part of it. Therefore java.awt.Desktop cannot be found. It seems like you're not using the right API at all. You should use Android Quickstart代替。

java.lang.NoClassDefFoundError: java/awt/Desktop in JDK 1.7

java.lang.NoClassDefFoundError: java/awt/Desktop in JDK 1.7

java

android

noclassdeffounderror

gmail-api