Activiti工作流流程图获取可以根据部署id或者流程定义id获取工作流的步骤全图,非实时节点步骤图
/** * 两种情况 * @param deploymentId * @param procDefId * @param response */ @GetMapping("/proc/viewImage") @ResponseBody public void viewImage(String deploymentId,String procDefId, HttpServletResponse response){ String imageName=null; if (StringUtils.isEmpty(deploymentId)&&StringUtils.isEmpty(procDefId)){ throw new AudaqueException("部署ID和实例id都不存在"); } if (!StringUtils.isEmpty(deploymentId)){ List<DeployMentVo> deployMentVos= actExtendProcessMapper.findDeployMentVo(deploymentId); if (!CollectionUtils.isEmpty(deployMentVos)){ for(DeployMentVo deployMentVo:deployMentVos){ if ( deployMentVo.getName().indexOf(".png")>0){ imageName=deployMentVo.getName(); } } }else{ throw new AudaqueException("流程图片不存在"); } } if (!StringUtils.isEmpty(procDefId)){ ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery().processDefinitionId(procDefId).singleResult(); imageName = processDefinition.getDiagramResourceName(); deploymentId=processDefinition.getDeploymentId(); } InputStream in = repositoryService.getResourceAsStream(deploymentId,imageName);//此处方法实际项目应该放在service里面 try { OutputStream out = response.getOutputStream(); // 把图片的输入流程写入resp的输出流中 byte[] b = new byte[1024]; for (int len = -1; (len= in.read(b))!=-1; ) { out.write(b, 0, len); } // 关闭流 out.close(); in.close(); } catch ( IOException e) { e.printStackTrace(); } }
起始就是这个表act_ge_bytearray的数据bytes_