private static final String userName = "Account SID";  
private static final String password = "Auth Token"; 
private String fromPhone; //你的手机号（平台购买的手机号）/*** 发送短信* */public static Map sms(String toPhone) {Map mapTypes =  new HashMap();try {// 生成安全的HS512密钥SecretKey secretKey = Keys.secretKeyFor(SignatureAlgorithm.HS512);// 初始化Twilio客户端Twilio.init(userName, password);// 发送短信Message message = Message.creator(new PhoneNumber(toPhone), //对方手机号new PhoneNumber("+14158141829"),//fromPhone"短信内容").create();// 打印短信的SIDmapTypes =  JSON.parseObject(String.valueOf(message));System.out.println(JSON.toJSONString(mapTypes));} catch (Exception e) {e.printStackTrace();}return mapTypes;}public static void main(String[] args) {Map sms = sms("+14159352345");}

//发送邮件

 /*** 发送邮件* */public static Map sendEmail(String toPhone) {Map mapTypes =  new HashMap();String apiKey = "后台的appkey，详细查看appKey的设置";try {SendGrid sg = new SendGrid(apiKey);Request request = new Request();request.setMethod(Method.POST);request.setEndpoint("/mail/send");//格式不能改// Create mailMail mail = new Mail();Personalization personalization1 = new Personalization();personalization1.addTo(new Email("收件人邮件地址", "收件人名称"));personalization1.addCustomArg("version", "1.0");//注意：自定义参数，会在回调的时候返回mail.addPersonalization(personalization1);mail.setFrom(new Email("发件人邮箱", "发件人名称"));mail.setSubject("Your Example Order Confirmation");//内容对象Content content = new Content();content.setType("text/html");content.setValue("<p>Hello from Twilio SendGrid!</p><p>Sending with the email service trusted by developers and marketers for <strong>time-savings</strong>, <strong>scalability</strong>, and <strong>delivery expertise</strong>.</p><p>%open-track%</p>");mail.addContent(content);request.setBody(mail.build());//发送邮件Response response = sg.api(request);System.out.println(response.getStatusCode());System.out.println(response.getBody());System.out.println(response.getHeaders());mapTypes = JSON.parseObject(response.getBody(),Map.class);} catch (Exception e) {e.printStackTrace();}return mapTypes;}

注意：短信的pom:  

<dependency><groupId>com.twilio.sdk</groupId><artifactId>twilio</artifactId><version>7.55.0</version></dependency>

邮件的我是在官网下载的jar包打到项目里的