diff --git a/src/main/java/cn/teammodel/model/dto/admin/exam/AnalysisDto.java b/src/main/java/cn/teammodel/model/dto/admin/exam/AnalysisDto.java
index 95abd66..fa1bf71 100644
--- a/src/main/java/cn/teammodel/model/dto/admin/exam/AnalysisDto.java
+++ b/src/main/java/cn/teammodel/model/dto/admin/exam/AnalysisDto.java
@@ -17,4 +17,8 @@ public class AnalysisDto {
     private int count;
     @ApiModelProperty("翻页参数，后续滚动翻页回传给后端，没有就不管")
     private String token;
+    @ApiModelProperty("开始时间")
+    private Long startTime;
+    @ApiModelProperty("结束时间")
+    private Long endTime;
 }
diff --git a/src/main/java/cn/teammodel/utils/GroupUtil.java b/src/main/java/cn/teammodel/utils/GroupUtil.java
index 0a75232..1bec418 100644
--- a/src/main/java/cn/teammodel/utils/GroupUtil.java
+++ b/src/main/java/cn/teammodel/utils/GroupUtil.java
@@ -2,7 +2,6 @@ package cn.teammodel.utils;
 
 import cn.teammodel.common.ErrorCode;
 import cn.teammodel.config.exception.ServiceException;
-import cn.teammodel.model.dto.admin.common.GroupDto;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.type.TypeFactory;
 import org.apache.http.HttpEntity;
@@ -13,12 +12,8 @@ import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.CloseableHttpClient;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.util.EntityUtils;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.ApplicationContext;
-import org.springframework.context.support.ClassPathXmlApplicationContext;
 import org.springframework.core.env.Environment;
 
-import javax.annotation.Resource;
 import javax.servlet.http.HttpServletRequest;
 import java.io.IOException;
 import java.util.HashMap;
@@ -34,7 +29,7 @@ public class GroupUtil {
     public static Map<String, Object>  getGroupId(Object obj, GroupUtil groupUtil, HttpServletRequest request,String url) {
         Map<String, Object> mapper = new HashMap<>();
         String evnStr =  groupUtil.env.getProperty("spring.env");
-        String apiUrl = "";
+        String apiUrl;
         if (evnStr != null && evnStr.equalsIgnoreCase("dev")) {
             apiUrl = "https://test.teammodel.cn" + url;