fix答案重复

src/main/java/cn/breeze/elleai/application/service/AppExamineService.java

@@ -1579,7 +1579,7 @@ public class AppExamineService {
         param.put("conversation_id", "");
         param.put("user", userId);
 
-        final StringBuffer answerBuffer = new StringBuffer();
+        final String[] standardAnswer = new String[1];
         final StringBuffer replyBuffer = new StringBuffer();
         final String[] score = new String[1];
         return webClient.post().uri("/chat-messages").accept(MediaType.TEXT_EVENT_STREAM).bodyValue(param.toJSONString()).exchangeToFlux(r -> r.bodyToFlux(String.class))
@@ -1598,14 +1598,14 @@ public class AppExamineService {
                         Pattern answerPattern = Pattern.compile("\"answer\":\"([^\"]*)");
                         Matcher answerMatcher = answerPattern.matcher(replyBuffer.toString());
                         if (answerMatcher.find()) {
-                            answerBuffer.append(answerMatcher.group(1));
+                            standardAnswer[0] = answerMatcher.group(1);
                         }
                     }
                     SubmitAnswerStreamResultDto result = new SubmitAnswerStreamResultDto();
                     if(StringUtils.isNotEmpty(score[0])) {
                         result.setScore(Float.valueOf(score[0]));
                     }
-                    result.setAnswer(answerBuffer.toString());
+                    result.setAnswer(standardAnswer[0]);
                     return result;
                 }).doOnComplete(
                         () -> {