{“ statusCode”：502，“ multiValueHeaders”：{“ Content-Type”：[“ application / json”]} AWS Lambda控制台中的错误

Question

我有一个在SpringBoot中开发并部署了AWS Environment的应用程序。当我尝试通过Configure Test Events在AWS Lambda Console上测试AWS Lambda Function时遇到以下错误。在检查CloudWatch Logs时，存在与db相关的UnknownHostException。但是，在构建期间，所有测试用例都可以正常工作，并在环境中填充db。但是，这从Lambda Console运行时不起作用，并引发错误。

{
  "statusCode": 502,
  "multiValueHeaders": {
    "Content-Type": [
      "application/json"
    ]
  },
  "body": "{\"message\":\"Gateway timeout\"}",
  "base64Encoded": false
}

登录Cloud Watch

at lambdainternal.LambdaRTEntry.main(LambdaRTEntry.java:114) [LambdaJavaRTEntry-1.0.jar:?]
java.lang.NullPointerException
    at com.amazonaws.serverless.proxy.internal.servlet.AwsProxyHttpServletRequestReader.readRequest(AwsProxyHttpServletRequestReader.java:48)
    at com.amazonaws.serverless.proxy.internal.servlet.AwsProxyHttpServletRequestReader.readRequest(AwsProxyHttpServletRequestReader.java:28)
    at com.amazonaws.serverless.proxy.internal.LambdaContainerHandler.proxy(LambdaContainerHandler.java:174)

这是我的LambdaHandler代码，

public class LambdaHandler implements RequestHandler<AwsProxyRequest, AwsProxyResponse> {

    private static SpringBootLambdaContainerHandler<AwsProxyRequest, AwsProxyResponse> handler;

    static {
        try {
            handler = SpringBootLambdaContainerHandler.getAwsProxyHandler(SpringBootApplication.class);
        } catch (ContainerInitializationException e) {
            // if we fail here. We re-throw the exception to force another cold start
            e.printStackTrace();
            throw new RuntimeException("Could not initialize Spring Boot Application", e);
        }
    }

    @Override
    public AwsProxyResponse handleRequest(AwsProxyRequest awsProxyRequest, Context context) {
        return handler.proxy(awsProxyRequest, context);
    }
}

这是Application类的代码

  public class SpringBootApplication {

        public static void main(String[] args) {

            SpringApplication.run(SpringBootApplication.class, args);
        }

}