diff --git a/src/main/java/com/weilab/biology/controller/JobController.java b/src/main/java/com/weilab/biology/controller/JobController.java
index 75d53e1..ca538da 100644
--- a/src/main/java/com/weilab/biology/controller/JobController.java
+++ b/src/main/java/com/weilab/biology/controller/JobController.java
@@ -48,7 +48,7 @@ public class JobController {
                          @RequestParam(required = false) String jobId,
                          @RequestParam(required = false) String dataStr,
                          @RequestParam(required = false) MultipartFile dataFile,
-                         @RequestParam String param,
+                         @RequestParam(defaultValue = "{}") String param,
                          @RequestParam String mail,
                          @RequestParam(defaultValue = "0") Integer type) {
         if (dataFile == null && StrUtil.isBlank(dataStr)) {
@@ -174,7 +174,7 @@ public class JobController {
         return jobService.getJobInfo(jobId);
     }
 
-    @GetMapping("/list/v2")
+    @GetMapping("/list")
     public Result getJobList(@RequestParam String appName,
                              @RequestParam(required = false) Integer type,
                              @RequestParam(defaultValue = "true") Boolean filterCreating,
diff --git a/src/main/java/com/weilab/biology/service/JobService.java b/src/main/java/com/weilab/biology/service/JobService.java
index 17bc696..1856b0e 100644
--- a/src/main/java/com/weilab/biology/service/JobService.java
+++ b/src/main/java/com/weilab/biology/service/JobService.java
@@ -22,6 +22,7 @@ import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.io.IOException;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.List;
@@ -53,8 +54,6 @@ public class JobService extends ServiceImpl<JobMapper, Job> {
      */
     @Transactional
     public Result submit(AppConfigDto appConfig, String dataStr, MultipartFile dataFile, JSONObject param, Job job) {
-        this.saveOrUpdate(job);
-
         try {
             // dataStr和dataFile均为蛋白质序列，两者含义相同只保留其一，dataFile的优先级大于dataStr
             // 若dataFile为空，则将dataStr写入本地文件，之后向python传递文件路径参数
@@ -69,16 +68,15 @@ public class JobService extends ServiceImpl<JobMapper, Job> {
             param.put("jobId", job.getJobId());
             param.put("requestDataPath", dataPath);
             param.put("resultDataPath", appConfig.getResultPath());
-
-            // 更新数据库param字段
-            job.setParam(JSON.toJSONString(param));
-            this.saveOrUpdate(job);
-            updateJobStatus(job, JobStatusEnum.WAITING);
-        } catch (Exception e) {
-            e.printStackTrace();
-            updateJobStatus(job, JobStatusEnum.FAIL);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
         }
 
+        // 更新数据库param字段
+        job.setParam(JSON.toJSONString(param));
+        this.saveOrUpdate(job);
+        updateJobStatus(job, JobStatusEnum.WAITING);
+
         return getJobInfo(job.getJobId());
     }