fix

examcloud-core-oe-student-service/src/main/java/cn/com/qmth/examcloud/core/oe/student/service/impl/ExamControlServiceImpl.java

@@ -975,6 +975,11 @@ public class ExamControlServiceImpl implements ExamControlService {
     @Override
     public CheckQrCodeInfo checkQrCode(String qrCode) {
         String str = UrlUtil.decode(qrCode);
+
+        // 去掉?符号前面的部分
+        int index = str.indexOf("?");
+        str = str.substring(index + 1);
+
         Map<String, String> map = Splitter.on("&").withKeyValueSeparator("=").split(str);
         String examStudentId = map.get("examStudentId");
         String examRecordDataId = map.get("examRecordDataId");
@@ -1263,7 +1268,7 @@ public class ExamControlServiceImpl implements ExamControlService {
         String key = user.getKey();
         StringBuffer param = new StringBuffer();
         String transferFileType = StringUtils.isBlank(req.getTransferFileType()) ? "" : req.getTransferFileType();
-        param.append("&examStudentId=").append(req.getExamStudentId()).append("&examRecordDataId=")
+        param.append("?examStudentId=").append(req.getExamStudentId()).append("&examRecordDataId=")
                 .append(req.getExamRecordDataId()).append("&order=").append(req.getOrder()).append("&transferFileType=")
                 .append(transferFileType).append("&key=").append(key);
         // 需要签名的参数