解决前图片:
//获取已部署工作流bpmn对象
BpmnModel bpmnModel = repositoryService.getBpmnModel(id);
//流程图生成器
ProcessDiagramGenerator processDiagramGenerator = new DefaultProcessDiagramGenerator();
//设置字体可以解决流程节点文字出现口口的问题
inputStream = processDiagramGenerator.generateDiagram(bpmnModel,"png","宋体","宋体","宋体",null,1.0);