废弃AbsDbWorker，增加IDbSimpleWorker，方便lambda表达式写法

smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/engine/model/flow/listcard/single/FlowSingleService.java

@@ -54,6 +54,6 @@ public class FlowSingleService extends LCSingleService {
     }
 
     public R retake(@SwBody SwMap params, UserSession us) {
-        return flowHandler(params, us, FlowTransHandler::submit);
+        return flowHandler(params, us, FlowTransHandler::retake);
     }
 }

smtweb-framework/bpm/src/main/java/cc/smtweb/system/bpm/web/engine/model/flow/listcard/single/FlowTransHandler.java

@@ -4,6 +4,8 @@ import cc.smtweb.framework.core.common.R;
 import cc.smtweb.framework.core.common.SwMap;
 import cc.smtweb.framework.core.db.DbEngine;
 import cc.smtweb.framework.core.db.impl.DefaultEntity;
+import cc.smtweb.framework.core.db.jdbc.AbsDbWorker;
+import cc.smtweb.framework.core.db.jdbc.IDbSimpleWorker;
 import cc.smtweb.framework.core.db.jdbc.IDbWorker;
 import cc.smtweb.framework.core.mvc.service.SwListData;
 import cc.smtweb.system.bpm.web.design.form.define.PageDataset;
@@ -53,19 +55,15 @@ public class FlowTransHandler<T extends DefaultEntity> extends AbstractDynPageHa
 
     public R submit() {
         load();
-        DbEngine.getInstance().doTrans(new IDbWorker() {
-            @Override
-            public void work() {
-                flowInstance.submit(params.readString("comment"));
-            }
-        });
+        DbEngine.getInstance().doTrans(() -> flowInstance.submit(params.readString("comment")));
 
         return R.success(buildRetData());
     }
 
     public R retake() {
         load();
-        flowInstance.retake();
+        DbEngine.getInstance().doTrans(() -> flowInstance.retake());
+
         return R.success(buildRetData());
     }
 }

smtweb-framework/core/src/main/java/cc/smtweb/framework/core/db/jdbc/IDbSimpleWorker.java

@@ -0,0 +1,8 @@
+package cc.smtweb.framework.core.db.jdbc;
+
+/**
+ * Created by Akmm at 2022-09-05 09:42
+ */
+public interface IDbSimpleWorker {
+    void work();
+}

smtweb-framework/core/src/main/java/cc/smtweb/framework/core/db/jdbc/JdbcEngine.java

@@ -281,7 +281,7 @@ public class JdbcEngine {
      *
      * @param extractor 回调方法
      * @return 事务是否成功，如果异常会也会事务回滚后再抛出异常
-     */
+     *//*
     public boolean doTrans(Supplier<Boolean> extractor) {
         try (JdbcTrans jdbcTrans = openTrans()) {
             boolean result = extractor.get();
@@ -292,7 +292,7 @@ public class JdbcEngine {
         }
 
         return false;
-    }
+    }*/
 
     public void beginTrans() {
         Thread t = Thread.currentThread();
@@ -346,6 +346,17 @@ public class JdbcEngine {
         dbWorker.doAfterDbCommit();
     }
 
+    public void doTrans(IDbSimpleWorker dbWorker) throws SwException {
+        beginTrans();
+        try {
+            dbWorker.work();
+            commit();
+        } catch (Exception e) {
+            rollback(e);
+            throw new SwException(e);
+        }
+    }
+
     //独立事务
     public void doTransSingle(IDbWorker worker) throws Exception {
         JdbcTrans jdbcTrans = openTrans();