我想使用 Gmail API(而不是 JavaMail)发送电子邮件。我在论坛上读到了很多类似的主题,但仍然有一个问题。
首先我读到了这个:https://developers.google.com/gmail/api/guides/sending https://developers.google.com/gmail/api/guides/sending
我实现了方法:MimeMessage createEmail、Message createMessageWithEmail 和 Message sendMessage
然后我注意到我没有对象 Gmail 服务的定义,所以我需要一个类 GmailQuickstart,它在这里:https://developers.google.com/gmail/api/quickstart/java https://developers.google.com/gmail/api/quickstart/java
我实现了:GmailQuickstart 类、Credential Authorize() 方法和 Gmail getGmailService() 方法
最后我写了一个主要的:
public static void main(final String[] args) throws MessagingException, IOException {
String APPLICATION_NAME = "gmailProject";
HttpTransport HTTP_TRANSPORT = new NetHttpTransport();
JsonFactory JSON_FACTORY = new JacksonFactory();
Credential credential = GmailQuickstart.authorize();
String to = "[email protected] /cdn-cgi/l/email-protection";
String from = "[email protected] /cdn-cgi/l/email-protection";
String subject = "Subject";
String bodyText = "Body";
MimeMessage emailcontent = createEmail(to, from, subject, bodyText);
createMessageWithEmail(emailcontent);
Gmail service = new com.google.api.services.gmail.Gmail.Builder(HTTP_TRANSPORT, JSON_FACTORY, credential)
.setApplicationName(APPLICATION_NAME).build();
sendMessage(service, "me", emailcontent);
}
之后我有一长串错误:
Exception in thread "main"com.google.api.client.googleapis. json.GoogleJsonResponseException: 403 Forbidden
{
"code" : 403,
"errors" : [ {
"domain" : "global",
"message" : "Insufficient Permission",
"reason" : "insufficientPermissions"
} ],
"message" : "Insufficient Permission"
}
at com.google.api.client.googleapis.json.GoogleJsonResponseException.from(GoogleJs nResponseException.java:146)
at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:113)
at com.google.api.client.googleapis.services.json.AbstractGoogleJsonClientRequest.newExceptionOnError(AbstractGoogleJsonClientRequest.java:40)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest$1.interceptResponse(AbstractGoogleClientRequest.java:321)
at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:1065)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:419)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:352)
at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:469)
at org.actuarlib.outsourcing.mail.Mail.sendMessage(Mail.java:78)
at org.actuarlib.outsourcing.mail.Mail.main(Mail.java:195)
我知道堆栈上有很多关于类似错误的主题,但我不知道如何纠正它。
任何人都可以告诉我出了什么问题,或者您知道使用 Gmail API 发送电子邮件的另一种方法吗?