線程“主”中的異常java.lang.NoSuchFieldError：AWS SNS中的INSTANCE

Question

我正在嘗試通過Amazon Web服務發送短信。 我已經下載了SD
打包com.sms;

import java.util.HashMap;
import java.util.Map;

import com.sms.AwsClientFactoryDemo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.amazonaws.services.sns.model.MessageAttributeValue;
import com.amazonaws.services.sns.model.PublishRequest;
import com.amazonaws.services.sns.model.PublishResult;

public class SmsNotificationService {
    private static final Logger LOG = LoggerFactory.getLogger(SmsNotificationService.class);

    public PublishResult send(String phoneNumber, String message) {
        Map<String, MessageAttributeValue> smsAttributes = new HashMap<String, MessageAttributeValue>();
        smsAttributes.put("AWS.SNS.SMS.SenderID", new MessageAttributeValue()
                .withStringValue("Lightside") //The sender ID shown on the device (except in US)
                .withDataType("String"));
        smsAttributes.put("AWS.SNS.SMS.MaxPrice", new MessageAttributeValue()
                .withStringValue("0.01") //Sets the max price to 0.01 USD.
                .withDataType("Number"));
        smsAttributes.put("AWS.SNS.SMS.SMSType", new MessageAttributeValue()
                .withStringValue("Promotional") //Sets the type to promotional.
                .withDataType("String"));
        PublishResult result = AwsClientFactoryDemo.getSnsClient().publish(new PublishRequest()
                .withMessage(message)
                .withPhoneNumber(phoneNumber)
                .withMessageAttributes(smsAttributes));
        LOG.info("Sent SMS message ID: " + result.getMessageId());
        return result;
    }

}

我在嘗試通過aws sns發送短信時，在上面的代碼中遇到以下錯誤。

Exception in thread "main" java.lang.NoSuchFieldError: INSTANCE
    at org.apache.http.conn.ssl.SSLConnectionSocketFactory.<clinit>(SSLConnectionSocketFactory.java:144)
    at com.amazonaws.http.apache.client.impl.ApacheConnectionManagerFactory.getPreferredSocketFactory(ApacheConnectionManagerFactory.java:87)
    at com.amazonaws.http.apache.client.impl.ApacheConnectionManagerFactory.create(ApacheConnectionManagerFactory.java:65)
    at com.amazonaws.http.apache.client.impl.ApacheConnectionManagerFactory.create(ApacheConnectionManagerFactory.java:58)
    at com.amazonaws.http.apache.client.impl.ApacheHttpClientFactory.create(ApacheHttpClientFactory.java:51)
    at com.amazonaws.http.apache.client.impl.ApacheHttpClientFactory.create(ApacheHttpClientFactory.java:39)
    at com.amazonaws.http.AmazonHttpClient.<init>(AmazonHttpClient.java:300)
    at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:164)
    at com.amazonaws.AmazonWebServiceClient.<init>(AmazonWebServiceClient.java:153)
    at com.amazonaws.services.sns.AmazonSNSClient.<init>(AmazonSNSClient.java:207)
    at com.amazonaws.services.sns.AmazonSNSClient.<init>(AmazonSNSClient.java:187)
    at com.amazonaws.services.sns.AmazonSNSClient.<init>(AmazonSNSClient.java:97)
    at com.sms.sms.main(sms.java:13)

Answer 1

這可能是由對類路徑的HTTP客戶端依賴關系的不同版本引起的。 （ Reference1 ， Reference2 ）確保在類路徑上只有一個版本。