我正在尝试编写一个从lex输入中获取信息的lambda函数，并调用rest api，将该信息作为参数传递，返回一个字符串，然后我将其作为响应发送给lex。它在eclipse中运行时按预期工作，但是当我将jar上传到amazon lambda时，它没有给出任何错误，但输出字符串为null。
public class LambdaFunctionHandler implements RequestHandler<Map<String,Object>, Object> {
@Override
public Object handleRequest(Map<String,Object> input, Context context) {
ValidationHook.LexRequest lexRequest= LexRequestFactory.createLexRequest(input);
String orgbotcommand = lexRequest.getCommand()+"%20"+lexRequest.getType()+"%20"+lexRequest.getNew_variable();
lexRequest.setOrgbotcommand(orgbotcommand);
try {
URL url = new URL("http://localhost:8080/mindtuit/execute?command="+orgbotcommand);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setRequestMethod("GET");
conn.setRequestProperty("Accept", "application/json");
if (conn.getResponseCode() != 200) {
throw new RuntimeException("Failed : HTTP error code : "
+ conn.getResponseCode());
}
BufferedReader br = new BufferedReader(new InputStreamReader(
(conn.getInputStream())));
String output;
System.out.println("Output from Server .... \n");
while ((output = br.readLine()) != null) {
System.out.println(output);
lexRequest.setResponse(output);
}
System.out.println(lexRequest.getResponse());
conn.disconnect();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
String content = String.format("command recieved by %s is %s,response is %s ",lexRequest.getBotName(),lexRequest.getOrgbotcommand(),lexRequest.getResponse());
Message message = new Message("PlainText",content);
DialogAction dialogAction = new DialogAction("Close", "Fulfilled", message );
System.out.println(dialogAction);
return new LexRespond(dialogAction);
}
}