diff --git a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/oneTimeService/OneTimeServiceFactory.java b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/oneTimeService/OneTimeServiceFactory.java
index bea5241..2a40de1 100644
--- a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/oneTimeService/OneTimeServiceFactory.java
+++ b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/oneTimeService/OneTimeServiceFactory.java
@@ -1,6 +1,7 @@
 package cc.smtweb.system.bpm.web.sys.oneTimeService;
 
 import cc.smtweb.framework.core.common.SwConsts;
+import cc.smtweb.framework.core.db.DbEngine;
 import cc.smtweb.framework.core.exception.BizException;
 import cc.smtweb.framework.core.exception.SwException;
 import cc.smtweb.framework.core.session.UserSession;
@@ -36,7 +37,7 @@ public class OneTimeServiceFactory {
 
     private Map<String, Class<? extends BaseOneTimeHandler>> mapType = new HashMap<>();
 
-    private OnetimeTaskHelper tasksDao = new OnetimeTaskHelper();
+    private OnetimeTaskHelper taskHelper = null;
 
     //服务器编号
     private int runServer = SwConsts.SysParam.machineId;
@@ -60,7 +61,14 @@ public class OneTimeServiceFactory {
     }
 
     public OnetimeTaskHelper getTasksHelper() {
-        return tasksDao;
+        if (taskHelper == null) {
+            synchronized (OnetimeTaskHelper.class) {
+                if (taskHelper == null) {
+                    taskHelper = new OnetimeTaskHelper(SwConsts.SysParam.machineId, DbEngine.getInstance().findDao(OnetimeTask.class));
+                }
+            }
+        }
+        return taskHelper;
     }
 
     /**
@@ -74,7 +82,7 @@ public class OneTimeServiceFactory {
      * @throws Exception
      */
     public void push(String type, String key, String name, long bizId, String inparams, UserSession us) {
-        if (tasksDao.isExistByKey(type, key)) {
+        if (taskHelper.isExistByKey(type, key)) {
             throw new BizException("该任务已经存在，不能新增！");
         }
         OnetimeTask task = new OnetimeTask();
@@ -106,7 +114,7 @@ public class OneTimeServiceFactory {
      * @throws Exception
      */
     public void restart(String type, String key) {
-        OnetimeTask task = tasksDao.findOneByTk(type, key);
+        OnetimeTask task = taskHelper.findOneByTk(type, key);
         if (task != null && !task.isNew()) {
             schedule.schedule(new OneTimeSysService(task), 1L, TimeUnit.MILLISECONDS);
         }
@@ -117,7 +125,7 @@ public class OneTimeServiceFactory {
         if (schedule != null) {
             stop();
         }
-        List<OnetimeTask> listService = tasksDao.findWaiting();
+        List<OnetimeTask> listService = taskHelper.findWaiting();
         schedule = Executors.newScheduledThreadPool(max_thread_size);
         for (OnetimeTask task : listService) {
             schedule.schedule(new OneTimeSysService(task), 10L, TimeUnit.SECONDS);
diff --git a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/oneTimeService/OnetimeTaskHelper.java b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/oneTimeService/OnetimeTaskHelper.java
index 156c352..1f9f010 100644
--- a/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/oneTimeService/OnetimeTaskHelper.java
+++ b/smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/sys/oneTimeService/OnetimeTaskHelper.java
@@ -16,19 +16,24 @@ import java.util.List;
 public final class OnetimeTaskHelper {
     //服务器编号
     private int runServer = SwConsts.SysParam.machineId;
-    private EntityDao<OnetimeTask> dao = null;//DbEngine.getInstance().findDao(OnetimeTasks.class);
+    private EntityDao<OnetimeTask> dao;
+
+    public OnetimeTaskHelper(int runServer, EntityDao<OnetimeTask> dao) {
+        this.runServer = runServer;
+        this.dao = dao;
+    }
 
     //获取所有等待中的任务，服务启动时执行一次
     public List<OnetimeTask> findWaiting() {
-        return dao.queryWhere(" run_server=? and statu < ?", runServer, OneTimeStatu.FAILED.value);
+        return dao.queryWhere(" sot_run_server=? and sot_statu < ?", runServer, OneTimeStatu.FAILED.value);
     }
 
     public OnetimeTask findOneByTk(String type, String key) {
-        return dao.queryEntityWhere(" task_type=? and task_key=?", type, key);
+        return dao.queryEntityWhere(" sot_type=? and sot_code=?", type, key);
     }
 
     public boolean isExistByKey(String type, String key) {
-        return DbEngine.getInstance().isExists("select task_id from " + EntityHelper.getSchemaTableName(OnetimeTask.ENTITY_NAME) + " where task_type=? and task_key=?", type, key);
+        return DbEngine.getInstance().isExists("select sot_id from " + EntityHelper.getSchemaTableName(OnetimeTask.ENTITY_NAME) + " where sot_type=? and sot_code=?", type, key);
     }
 
     public void updateTask(OnetimeTask task) {
@@ -51,13 +56,13 @@ public final class OnetimeTaskHelper {
                 @Override
                 public void work() {
                     task.setRunServer(runServer);
-                    dao.updateEntity(task, "begin_time,end_time,statu,info,process,run_server");
+                    dao.updateEntity(task, "sot_begin_time,sot_end_time,sot_statu,sot_info,sot_process,sot_run_server");
                 }
             });
         }
     }
 
     public void updatProcess(OnetimeTask task) {
-        dao.updateEntity(task, "process");
+        dao.updateEntity(task, "sot_process");
     }
 }
\ No newline at end of file