使用springboot+camunda写一个流程发起,审批,归档,退回功能的项目代码
时间: 2024-03-11 13:51:35 浏览: 135
好的,我可以给你提供一个简单的示例代码,帮助你更好地理解如何使用Spring Boot和Camunda实现一个流程发起、审批、归档、退回的项目。
首先,在pom.xml文件中添加以下依赖,来集成Camunda流程引擎和Spring Boot:
```xml
<dependency>
<groupId>org.camunda.bpm.springboot</groupId>
<artifactId>camunda-bpm-spring-boot-starter</artifactId>
<version>${camunda.version}</version>
</dependency>
<dependency>
<groupId>org.camunda.bpm.springboot</groupId>
<artifactId>camunda-bpm-spring-boot-starter-webapp</artifactId>
<version>${camunda.version}</version>
</dependency>
```
然后,你需要创建一个Camunda配置类,来配置Camunda流程引擎,例如:
```java
@Configuration
public class CamundaConfig {
@Autowired
private DataSource dataSource;
@Bean
public SpringProcessEngineConfiguration processEngineConfiguration() {
SpringProcessEngineConfiguration config = new SpringProcessEngineConfiguration();
config.setDataSource(dataSource);
config.setDatabaseSchemaUpdate("true");
config.setJobExecutorActivate(true);
config.setHistory(HistoryLevel.FULL.getName());
return config;
}
@Bean
public ProcessEngineFactoryBean processEngine() {
ProcessEngineFactoryBean factoryBean = new ProcessEngineFactoryBean();
factoryBean.setProcessEngineConfiguration(processEngineConfiguration());
return factoryBean;
}
@Bean
public RepositoryService repositoryService(ProcessEngine processEngine) {
return processEngine.getRepositoryService();
}
@Bean
public RuntimeService runtimeService(ProcessEngine processEngine) {
return processEngine.getRuntimeService();
}
@Bean
public TaskService taskService(ProcessEngine processEngine) {
return processEngine.getTaskService();
}
@Bean
public HistoryService historyService(ProcessEngine processEngine) {
return processEngine.getHistoryService();
}
}
```
接下来,你需要定义流程模型,例如一个简单的请假流程。你可以使用Camunda Modeler来设计和定义这个流程模型。然后,在项目中将这个流程模型部署到Camunda流程引擎中,例如:
```java
@Service
public class ProcessDeploymentService {
@Autowired
private RepositoryService repositoryService;
public void deployProcess() {
Deployment deployment = repositoryService.createDeployment()
.addClasspathResource("processes/leave.bpmn")
.deploy();
System.out.println("Deployed process: " + deployment.getName());
}
}
```
然后,你可以编写一个Java方法来启动这个请假流程,例如:
```java
@Service
public class LeaveProcessService {
@Autowired
private RuntimeService runtimeService;
public void startProcess(String applicant, int days) {
Map<String, Object> variables = new HashMap<>();
variables.put("applicant", applicant);
variables.put("days", days);
ProcessInstance processInstance = runtimeService.startProcessInstanceByKey("leave", variables);
System.out.println("Started process: " + processInstance.getId());
}
}
```
当请假流程中的任务需要被处理时,你可以编写另一个Java方法来处理这个任务,例如:
```java
@Service
public class LeaveTaskService {
@Autowired
private TaskService taskService;
public void completeTask(String taskId, boolean approved) {
Map<String, Object> variables = new HashMap<>();
variables.put("approved", approved);
taskService.complete(taskId, variables);
System.out.println("Completed task: " + taskId);
}
}
```
你还可以编写一些事件监听器来处理流程中的事件,例如流程完成、任务完成等。例如,下面是一个流程完成的事件监听器:
```java
@Component
public class ProcessCompleteListener implements ExecutionListener {
@Override
public void notify(DelegateExecution execution) {
System.out.println("Process completed: " + execution.getProcessInstanceId());
}
}
```
最后,你需要实现流程的审批、归档和退回功能。例如,你可以添加一个审批任务,当该任务被处理时,流程将继续执行。如果审批被拒绝,你可以使用网关将流程返回到之前的任务或者终止流程。当流程完成时,你可以将流程的结果归档。
以上是一个简单的示例代码,具体实现细节还需要根据你的具体需求来确定。
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