SendGrid電子郵件API，發送電子郵件附件

我使用sendgrid發送電子郵件，它使用下面的代碼，但它沒有附件正常工作。SendGrid電子郵件API，發送電子郵件附件

package sendgrid; 

import com.sendgrid.Content; 
import com.sendgrid.Email; 
import com.sendgrid.Mail; 
import com.sendgrid.Method; 
import com.sendgrid.Request; 
import com.sendgrid.Response; 
import com.sendgrid.SendGrid; 
import java.io.IOException; 

public class SendEmail { 
    public static void main(String[] args) throws IOException { 
    Email from = new Email("[email protected]"); 
    String subject = "Hello World from the SendGrid Java Library!"; 

    Email to = new Email("[email protected]"); 
    Content content = new Content("text/plain", "Hello, Email!"); 
    Mail mail = new Mail(from, subject, to, content); 

    SendGrid sg = new SendGrid("SG.rIEh84OgQBybYEJcOMie1wd.AZqqdWNYXbOqTarUJcG-iSg0UtHJtCto4oe6tVzn6es"); 
    Request request = new Request(); 
    try { 

     request.method = Method.POST; 
     request.endpoint = "mail/send"; 
     request.body = mail.build(); 

     Response response = sg.api(request); 
     System.out.println(response.statusCode); 
     System.out.println(response.body); 
     System.out.println(response.headers); 

    } catch (IOException ex) { 
     throw ex; 
    } 
    } 

}

，但我需要的是用它發送附件，所以我搜索GitHub的源和捲筒紙文件API，以及由於某種原因沒有的javadoc，但有一個例子GitHub sendgrid所以我嘗試，直到它的作品，我縮小了一些例外和響應代碼，起初我越來越未經授權禁止，它更好地響應202，意味着有效和排隊（check here）任何方式這裏是我的代碼，劑量發送電子郵件和附件，但是當你打開附件其零大小，並說無法打開或預覽文件！

package sendgrid; 

    import com.sendgrid.Attachments; 
    import com.sendgrid.Content; 
    import com.sendgrid.Email; 
    import com.sendgrid.Mail; 
    import com.sendgrid.MailSettings; 
    import com.sendgrid.Method; 
    import com.sendgrid.Request; 
    import com.sendgrid.SendGrid; 
    import com.sendgrid.Setting; 
    import java.io.File; 
    import java.io.FileInputStream; 
    import java.io.IOException; 


    public class SendEmailAttachmentV2 { 

     public static void main(String[] args) throws IOException { 
      sendmail(); 
     } 

     // Fully populated Mail object 
     public static void sendmail() throws IOException { 

      com.sendgrid.Response response1; 

      Email from = new Email("[email protected]"); 
      String subject = "Hello World from the SendGrid Java Library!"; 

      Email to = new Email("[email protected]"); 
      Content content = new Content("text/plain", "Hello, Email!"); 
      Mail mail = new Mail(from, subject, to, content); 

      File file = new File("C:\\x.png"); 
      byte[] fileData = null; 
      try { 
       fileData = org.apache.commons.io.IOUtils.toByteArray(new FileInputStream(file)); 
      } catch (IOException ex) { 
      } 

      Attachments attachments3 = new Attachments();    
      attachments3.setContent(new String(fileData, 0, (int) file.length(), "UTF-8")); 
      attachments3.setType("image/png");//"application/pdf" 
      attachments3.setFilename("x.png"); 
      attachments3.setDisposition("attachment"); 
      attachments3.setContentId("Banner"); 
      mail.addAttachments(attachments3); 


      MailSettings mailSettings = new MailSettings(); 
      Setting sandBoxMode = new Setting(); 
      sandBoxMode.setEnable(true); 
      mailSettings.setSandboxMode(sandBoxMode); 

      SendGrid sg = new SendGrid("SG.1Hg78VK0TJ6kexUnByZUYg.LAa5A4GufssZ9lpPQdV6PcZCY6SZ9Xq6LvqfMRG0wesKw"); 
      Request request1 = new Request(); 
      try { 
       request1.method = Method.POST; 
       request1.endpoint = "mail/send"; 

       request1.body = mail.build(); 

       response1 = sg.api(request1); 
       System.out.println(response1.statusCode); 
       System.out.println(response1.body); 
       System.out.println(response1.headers); 

      } catch (IOException ex) { 
       System.out.println(ex); 
      } 
     } 

    }

FYI：使用從sendgrid

來源

2016-07-26 shareef

你應該從你的代碼示例 – IcedDante

拔出鑰匙是感謝@IcedDante我已經把隨機的不是真正的一個我會重新隨機任何方式 – shareef

控制檯當我執行我的日誌在NetBeans

202 

{X-Frame-Options=DENY, Server=nginx, Connection=keep-alive, 
X-Message-Id=vqVw2RtUShSVQ_ymVEVqaw, Content-Length=0, Date=Tue, 26 
Jul 2016 20:05:54 GMT, Content-Type=text/plain; charset=utf-8}

訣竅得到了以下消息的代碼生成您的生成API密鑰解決問題的方法是使用commons編碼附件apache codec commons-codec-1.8.jarand its encodeAsString`方法從包

org.apache.commons.codec.binary.Base64

Attachments attachments3 = new Attachments(); 
     Base64 x = new Base64(); 
     String imageDataString = x.encodeAsString(fileData); 
     attachments3.setContent(imageDataString); 
     attachments3.setType("image/png");//"application/pdf" 
     attachments3.setFilename("x.png"); 
     attachments3.setDisposition("attachment"); 
     attachments3.setContentId("Banner"); 
     mail.addAttachments(attachments3);

即使內容長度被retruned爲0以響應它的工作。

來源

2016-07-26 20:13:57 shareef

這是您可以使用SendGrid API發送附件的方式。

Mail mail = createEmail(); 
    Attachments attachments = new Attachments(); 
    Base64 x = new Base64(); 
    String encodedString = x.encodeAsString(loadPdfFromClasspath()); 
    attachments.setContent(encodedString); 
    attachments.setDisposition("attachment"); 
    attachments.setFilename("xyx.pdf"); 
    attachments.setType("application/pdf"); 
    mail.addAttachments(attachments); 


try { 
     request.method = com.sendgrid.Method.POST; 
     request.endpoint = "mail/send"; 
     request.body = mail.build(); 
     // Uncomment once connectivity with sendgrid is resolved 
     Response response = sg.api(request); 

}catch (IOException ex) { 
     throw ex; 
    }

來源

2017-04-26 10:08:45 Nayan

SendGrid電子郵件API，發送電子郵件附件

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