流程图节点在监听中设置已跳过，但是该节点显示为绿色，而不是灰色

Question

 

@xyz20003 你好，想跟你请教个问题：流程图节点在监听中设置已跳过，但是该节点显示为绿色，而不是灰色

监听代码如下：

 

/**
 * 
 */
package com.ailk.activiti.bpm.listener;

import java.util.Collections;

import org.activiti.engine.HistoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.TaskService;
import org.activiti.engine.delegate.DelegateTask;
import org.activiti.engine.impl.context.Context;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;

import com.ailk.activiti.bpm.cmd.CompleteTaskWithCommentCmd;
import com.ailk.activiti.bpm.support.DefaultTaskListener;

/**
 * @author hanguang 判断节点是否需要审批,如果不需要审批则跳过
 * 
 */
public class ExclusiveTaskListener extends DefaultTaskListener {
	private static Logger logger = LoggerFactory
			.getLogger(ExclusiveTaskListener.class);
	@Autowired
	private HistoryService historyService;
	@Autowired
	private RuntimeService runtimeService;
	@Autowired
	private TaskService taskService;

	@Override
	public void onCreate(DelegateTask delegateTask) throws Exception {
		String taskDefinitionKey = delegateTask.getTaskDefinitionKey();
		String taskId = delegateTask.getId();
		Object valiable = null;
		if (taskDefinitionKey.equals("MGW")) {
			valiable = delegateTask.getVariable("MGW");
			if (valiable == null) {
				new CompleteTaskWithCommentCmd(taskId,
						Collections.<String, Object> emptyMap(), "跳过")
						.execute(Context.getCommandContext());
			}
		}

	}
}

 

流程图显示如下：

 

Answer 1

可能是taskListener放置的位置，导致修改了错误的historicActivityInstance的deleteReason。

这个问题在LemonOA的老版本中遇到过，我们是通过区分了history之前执行的taskListener和history之后执行的taskListener来解决的。

skip这种，必须在history执行之后触发。

Answer 2

数据库中是有跳过原因的，为什么下面方法取得的值为null

deleteReason = Context
        .getCommandContext()
        .getHistoricTaskInstanceEntityManager()
        .findHistoricTaskInstanceById(
          historicActivityInstance.getTaskId())
        .getDeleteReason();

Answer 3

 if ("跳过".equals(deleteReason)) {
                        signSkipNode(image, activity.getX() - this.minX,
                                activity.getY() - this.minY,
                                activity.getWidth(), activity.getHeight(),
                                historicActivityInstance.getActivityType());
                    }

这行代码没有执行，跟踪到deleteReason的值为NULL，而不是为【跳过】

Answer 4

CustomProcessDiagramGenerator里有这样一行代码，请确认这行代码是否执行了。

                    // 节点已经结束
                    if ("跳过".equals(deleteReason)) {
                        signSkipNode(image, activity.getX() - this.minX,
                                activity.getY() - this.minY,
                                activity.getWidth(), activity.getHeight(),
                                historicActivityInstance.getActivityType());
                    } else {
                        signHistoryNode(image, activity.getX() - this.minX,
                                activity.getY() - this.minY,
                                activity.getWidth(), activity.getHeight(),
                                historicActivityInstance.getActivityType());
                    }