话不多说，直接上代码，这是项目目录结构，DDD领域驱动模型，流程实例单独一个package

 

 发起流程的代码如下，如要传入流程定义的key，流程实例名称，和发起人id

@ApiOperation(value = "发起流程", httpMethod = "POST")
@PostMapping("start")
public ResultDTO<ProcessInstanceDTO> start(String processDefinitionKey, String processInstanceName, String userId){
    ResultDTO<ProcessInstanceDTO> resultDTO = new ResultDTO<>(ReturnCode.SUCCESS, "启动成功");
    ProcessInstance processInstance = processInstanceApplicationService.start(processDefinitionKey, processInstanceName, userId);
    if(Objects.isNull(processInstance)){
        return new ResultDTO<>(ReturnCode.FAIL, "启动失败");
    }
    resultDTO.setData(ProcessInstanceAssembler.convertToProcessInstanceDTO(processInstance));
    return resultDTO;
}

流程发起后还需要查询我发我的流程列表，代码如下，需要传入发起人id即可

@ApiOperation(value = "我发起的流程列表", httpMethod = "POST")
@PostMapping("list")
public ResultDTO<ProcessInstanceDTO> list(String userId){
    ResultDTO<ProcessInstanceDTO> resultDTO = new ResultDTO<>(ReturnCode.SUCCESS, "查询成功");
    List<HistoricProcessInstance> historicProcessInstanceList = processInstanceApplicationService.list(userId);
    if(CollUtil.isEmpty(historicProcessInstanceList)){
        return new ResultDTO<>(ReturnCode.FAIL, "查询无数据");
    }
    resultDTO.setDataList(ProcessInstanceAssembler.convertToProcessInstanceDTO(historicProcessInstanceList));
    return resultDTO;
}

 

下面是swagger接口测试：

 

填入发起流程的参数，点击execute，页面显示发起成功

 

 下面查询我发起的流程，填入参数，点击execute

 

 返回的数据就是我们刚刚发起的流程，测试成功