diff --git a/servers/boe-server-all/src/main/java/com/xboe/module/exam/api/ExamTestApi.java b/servers/boe-server-all/src/main/java/com/xboe/module/exam/api/ExamTestApi.java
index 9b083070..f774c236 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/module/exam/api/ExamTestApi.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/module/exam/api/ExamTestApi.java
@@ -2,6 +2,7 @@ package com.xboe.module.exam.api;
 
 import javax.annotation.Resource;
 
+import org.hibernate.exception.ConstraintViolationException;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -81,12 +82,25 @@ public class ExamTestApi extends ApiBaseController {
         if(StringUtil.isBlank(examTest.getTestName())){
             return badRequest("标题为空");
         }
+
+        // 确保examTest有一个有效的主键ID（如果适用）
+        // 这取决于您的业务逻辑是否允许更新主键
+        // 通常，更新操作不会改变主键
+        if (examTest.getId() == null) {
+            return badRequest("更新操作需要有效的主键ID");
+        }
+
         try {
             examTestService.update(examTest);
             return success(examTest);
+        } catch (ConstraintViolationException e) {
+            // 捕获约束违反异常，并返回一个更具体的错误消息
+            log.error("修改失败，违反了约束条件", e);
+            return error("修改失败，违反了约束条件（可能是主键已存在）");
         } catch (Exception e) {
-            log.error("修改失败",e);
-            return error("修改失败",e.getMessage());
+            // 捕获其他所有异常
+            log.error("修改失败", e);
+            return error("修改失败", e.getMessage());
         }
     }
     /**、
diff --git a/servers/boe-server-all/src/main/java/com/xboe/module/exam/entity/ExamTest.java b/servers/boe-server-all/src/main/java/com/xboe/module/exam/entity/ExamTest.java
index fb665bc2..a4f313bb 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/module/exam/entity/ExamTest.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/module/exam/entity/ExamTest.java
@@ -101,7 +101,7 @@ public class ExamTest extends BaseEntity {
     /**
      * 试卷的ID
      */
-    @Column(name = "paper_id",nullable = false,length=20)
+    @Column(name = "paper_id",length=20)
     private String paperId;
     
     /**
@@ -173,7 +173,7 @@ public class ExamTest extends BaseEntity {
 
 
     /**启用的，上架*/
-    @Column(name = "enabled", nullable = false, length = 1)
+    @Column(name = "enabled", length = 1)
     private Boolean enabled;
     
     @Transient
diff --git a/servers/boe-server-all/src/main/java/com/xboe/module/exam/service/impl/ExamTestServiceImpl.java b/servers/boe-server-all/src/main/java/com/xboe/module/exam/service/impl/ExamTestServiceImpl.java
index 5b9bf331..8414badb 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/module/exam/service/impl/ExamTestServiceImpl.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/module/exam/service/impl/ExamTestServiceImpl.java
@@ -70,7 +70,18 @@ public class ExamTestServiceImpl implements IExamTestService {
 
     @Override
     public void update(ExamTest examTest) {
-        examTestDao.update(examTest);
+        if (examTest.getId() == null) {
+            throw new IllegalArgumentException("ID must not be null");
+        }
+        String sql = "update boe_exam_test set arrange = "+ examTest.getArrange() +", deadline_time = '"+examTest.getDeadlineTime() +"' , " +
+                "entrance_time = '"+examTest.getEntranceTime() +"' , paper_id = "+examTest.getPaperId() +",pass_line = "+examTest.getPassLine() +
+                ", percent_score = "+examTest.getPercentScore() +" ,publish_time = '"+examTest.getPublishTime()+"' , published = "+examTest.getPublished()+
+                ",random_count = "+examTest.getRandomCount()+" ,random_mode = "+examTest.getRandomMode()+",range_type = "+examTest.getRangeType() +
+                ",scoring_type = "+examTest.getScoringType() +",show_analysis="+examTest.getShowAnalysis() +",show_answer = "+examTest.getShowAnswer() +
+                ",test_duration = "+examTest.getTestDuration() +",test_name = '"+examTest.getTestName() +"',test_remark= "+examTest.getTestRemark() +
+                ",test_type= "+examTest.getTestType() +" ,test_up = '"+examTest.getTestUp() +"' ,test_front= "+examTest.getTestFront() +
+                ",times = '"+examTest.getTimes() +"'  where id = "+examTest.getId()+"";
+        examTestDao.sqlUpdate(sql);
     }
     
     @Override