activiti7整个执行流程的代码
时间: 2023-08-29 13:07:31 浏览: 176
Activiti 7 是一个基于 Spring Boot 和 Spring Cloud 的工作流引擎,其执行流程的代码比较复杂,需要涉及到多个模块和类。下面是 Activiti 7 执行流程的主要代码:
1. 创建流程实例
```java
BpmnModel bpmnModel = repositoryService.getBpmnModel(processDefinitionId);
Process process = bpmnModel.getProcesses().get(0);
FlowElement startElement = process.getFlowElements().stream()
.filter(e -> e instanceof StartEvent)
.findFirst()
.orElseThrow(() -> new IllegalArgumentException("No start event found in process definition " + processDefinitionId));
ProcessInstance processInstance = runtimeService.startProcessInstanceById(processDefinitionId, variables);
```
2. 执行用户任务
```java
Task task = taskService.createTaskQuery().processInstanceId(processInstanceId).singleResult();
if (task != null) {
taskService.complete(task.getId(), variables);
}
```
3. 完成流程实例
```java
ProcessInstance processInstance = runtimeService.createProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
if (processInstance != null) {
runtimeService.deleteProcessInstance(processInstanceId, reason);
}
```
4. 监听流程事件
```java
@EventListener
public void onProcessStarted(ProcessStartedEvent event) {
String processInstanceId = event.getProcessInstanceId();
// 处理流程启动事件
}
@EventListener
public void onTaskCreated(TaskCreatedEvent event) {
String taskId = event.getTaskId();
// 处理任务创建事件
}
@EventListener
public void onTaskCompleted(TaskCompletedEvent event) {
String taskId = event.getTaskId();
// 处理任务完成事件
}
@EventListener
public void onProcessCompleted(ProcessCompletedEvent event) {
String processInstanceId = event.getProcessInstanceId();
// 处理流程完成事件
}
```
以上是 Activiti 7 执行流程的主要代码,详细的实现可以参考 Activiti 7 的源码。
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