diff --git a/src/main/java/com/sztzjy/fund_investment/controller/TopicController.java b/src/main/java/com/sztzjy/fund_investment/controller/TopicController.java
index 11236c8..6909cca 100644
--- a/src/main/java/com/sztzjy/fund_investment/controller/TopicController.java
+++ b/src/main/java/com/sztzjy/fund_investment/controller/TopicController.java
@@ -130,7 +130,7 @@ public class TopicController {
         PerformanceScoreExample performanceScoreExample = new PerformanceScoreExample();
         performanceScoreExample.createCriteria().andFlowIdEqualTo(flowId);
         List<PerformanceScore> performanceScores = performanceScoreMapper.selectByExample(performanceScoreExample);
-        if (performanceScores.isEmpty()) {
+        if (performanceScores == null || performanceScores.isEmpty()) {
             return null;
         } else {
             return new ResultEntity<>(performanceScores.get(0));
diff --git a/src/main/java/com/sztzjy/fund_investment/controller/UserController.java b/src/main/java/com/sztzjy/fund_investment/controller/UserController.java
index bddf1f5..dd2765f 100644
--- a/src/main/java/com/sztzjy/fund_investment/controller/UserController.java
+++ b/src/main/java/com/sztzjy/fund_investment/controller/UserController.java
@@ -10,7 +10,6 @@ import com.sztzjy.fund_investment.entity.PerformanceScore;
 import com.sztzjy.fund_investment.entity.PerformanceScoreExample;
 import com.sztzjy.fund_investment.entity.User;
 import com.sztzjy.fund_investment.entity.dto.EvaluationLevel;
-import com.sztzjy.fund_investment.entity.dto.PerformanceScoreDto;
 import com.sztzjy.fund_investment.entity.dto.PerformanceTrainingScoreDto;
 import com.sztzjy.fund_investment.mapper.FlowMapper;
 import com.sztzjy.fund_investment.mapper.PerformanceScoreMapper;
@@ -23,15 +22,12 @@ import com.sztzjy.fund_investment.util.ResultEntity;
 import com.sztzjy.fund_investment.util.RsaUtil;
 import io.swagger.annotations.Api;
 import io.swagger.annotations.ApiOperation;
-import io.swagger.annotations.ApiParam;
-import org.geolatte.geom.M;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpStatus;
 import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.core.context.SecurityContextHolder;
-import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@@ -40,7 +36,6 @@ import org.springframework.web.bind.annotation.RestController;
 import javax.annotation.Resource;
 import java.lang.reflect.Field;
 import java.math.BigDecimal;
-import java.sql.Array;
 import java.util.*;
 
 @Api(tags = "用户管理")
@@ -192,7 +187,7 @@ public class UserController {
         PerformanceScoreExample example = new PerformanceScoreExample();
         example.createCriteria().andFlowIdEqualTo(flow.getFlowId());
         List<PerformanceScore> performanceScores = performanceScoreMapper.selectByExample(example);
-        if (performanceScores.isEmpty()) {
+        if (performanceScores == null || performanceScores.isEmpty()) {
             return null;
         }
         performanceScoreMapper.deleteByExample(example);