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fix:[工作流] 返回对应实例的流程图

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This commit is contained in:
yunlong.li 2021-11-05 18:14:56 +08:00
parent 3c3f46ee4e
commit 9bbeb93b2e
3 changed files with 13 additions and 8 deletions
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2
yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/activiti/controller/workflow/TaskController.java
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@ -59,7 +59,7 @@ public class TaskController {
}
/**
* 返回高亮的流转进程
* 返回高亮的流转图SVG
* @param processInstanceId
*/
@GetMapping("/process/highlight-img/{id}")

3
yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/activiti/service/workflow/TaskService.java
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@ -27,7 +27,8 @@ public interface TaskService {
/**
* 返回高亮的流转进程
* @param processInstanceId
* @param processInstanceId 实例Id
* @param response 响应
*/
void getHighlightImg(String processInstanceId, HttpServletResponse response);
}

16
yudao-admin-server/src/main/java/cn/iocoder/yudao/adminserver/modules/activiti/service/workflow/impl/TaskServiceImpl.java
View File

@ -23,6 +23,7 @@ import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.history.HistoricActivityInstance;
import org.activiti.engine.history.HistoricProcessInstance;
import org.activiti.engine.history.HistoricTaskInstance;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.engine.task.Comment;
@ -34,7 +35,9 @@ import org.springframework.util.CollectionUtils;
import javax.annotation.Resource;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
@ -225,28 +228,28 @@ public class TaskServiceImpl implements TaskService {
@Override
public void getHighlightImg(String processDefinitionId, HttpServletResponse response) {
public void getHighlightImg(String processInstanceId, HttpServletResponse response) {
// 查询历史
HistoricProcessInstance hpi = historyService.createHistoricProcessInstanceQuery().processInstanceId(processDefinitionId).singleResult();
HistoricProcessInstance hpi = historyService.createHistoricProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
// 如果有结束时间
if (hpi == null) {
return;
}
// 没有结束时间。说明流程在执行过程中
ProcessInstance pi = runtimeService.createProcessInstanceQuery().processInstanceId(processDefinitionId).singleResult();
ProcessInstance pi = runtimeService.createProcessInstanceQuery().processInstanceId(processInstanceId).singleResult();
BpmnModel bpmnModel = repositoryService.getBpmnModel(pi.getProcessDefinitionId());
List<String> highLightedActivities = new ArrayList<>();
List<HistoricActivityInstance> historicActivityInstances = historyService.createHistoricActivityInstanceQuery().processInstanceId(processDefinitionId)
List<HistoricActivityInstance> historicActivityInstances = historyService.createHistoricActivityInstanceQuery().processInstanceId(processInstanceId)
.orderByHistoricActivityInstanceId().asc().list();
// 获取所有活动节点
List<HistoricActivityInstance> finishedInstances = historyService.createHistoricActivityInstanceQuery()
.processInstanceId(processDefinitionId).finished().list();
.processInstanceId(processInstanceId).finished().list();
for (HistoricActivityInstance hai : finishedInstances) {
highLightedActivities.add(hai.getActivityId());
}
// 已完成的节点+当前节点
highLightedActivities.addAll(runtimeService.getActiveActivityIds(processDefinitionId));
highLightedActivities.addAll(runtimeService.getActiveActivityIds(processInstanceId));
// 经过的流
List<String> highLightedFlowIds = getHighLightedFlows(bpmnModel, historicActivityInstances);
@ -264,6 +267,7 @@ public class TaskServiceImpl implements TaskService {
}
private void responseImage(HttpServletResponse response, InputStream inputStream, String picName) throws IOException {
BufferedImage src = ImageIO.read(inputStream);
response.setContentType("application/octet-stream;charset=UTF-8");
response.setHeader("Content-Disposition", "attachment; filename=" + URLEncoder.encode(picName, "UTF-8"));
byte[] b = new byte[1024];