根据流程实例id获取子流程id列表

oa-back/ruoyi-flowable/src/main/java/com/ruoyi/flowable/controller/FlowInstanceController.java

 import io.swagger.annotations.ApiOperation;
 import io.swagger.annotations.ApiParam;
 import lombok.extern.slf4j.Slf4j;
+import org.flowable.engine.history.HistoricProcessInstance;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.List;
 import java.util.Map;
 
 /**
         return AjaxResult.success();
     }
 
+    @ApiOperation(value = "根据流程实例id获取子流程id列表")
+    @PostMapping(value = "/listSubProcInstId")
+    public AjaxResult listSubProcInstId(@ApiParam(value = "流程实例ID", required = true) @RequestParam String instanceId) {
+        List<HistoricProcessInstance> subProcInstIdList = flowInstanceService.listSubProcInstId(instanceId);
+        return AjaxResult.success(subProcInstIdList);
+    }
+
     @ApiOperation("结束流程实例")
     @PostMapping(value = "/stopProcessInstance")
     public AjaxResult stopProcessInstance(@RequestBody FlowTaskVo flowTaskVo) {

oa-back/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/IFlowInstanceService.java

      */
     void updateState(Integer state, String instanceId);
 
+    /**
+     * 根据流程实例id获取子流程id列表
+     *
+     * @param instanceId 流程实例ID
+     */
+    List<HistoricProcessInstance> listSubProcInstId(String instanceId);
+
     /**
      * 删除流程实例ID
      *

oa-back/ruoyi-flowable/src/main/java/com/ruoyi/flowable/service/impl/FlowInstanceServiceImpl.java

         }
     }
 
+    /**
+     * 根据流程实例id获取子流程id列表
+     *
+     * @param instanceId 流程实例ID
+     */
+    @Override
+    public List<HistoricProcessInstance> listSubProcInstId(String instanceId) {
+        List<HistoricProcessInstance> historicProcessInstance =
+                historyService.createHistoricProcessInstanceQuery().superProcessInstanceId(instanceId).list();
+        for (HistoricProcessInstance processInstance : historicProcessInstance) {
+            if (processInstance.getProcessDefinitionId().contains("tech_plan")) {
+                historicProcessInstance.addAll(historyService.createHistoricProcessInstanceQuery().superProcessInstanceId(processInstance.getId()).list());
+            }
+        }
+        return historicProcessInstance;
+    }
+
     /**
      * 删除流程实例ID
      *