/**
* 查看流程定义图
*
* @param request
* @param processDefId 流程定义id
* @return
*/
@RequestMapping(value = "/viewprocessDefImage.do")
public String viewprocessDefImage(
HttpServletRequest request,
HttpServletResponse response,
@RequestParam("processDefId") String processDefId)
throws Exception {
// 根据流程定义id查询流程定义
ProcessDefinition processDefinition =
repositoryService
.createProcessDefinitionQuery()
.processDefinitionId(processDefId)
.singleResult();
InputStream inputStream =
repositoryService.getResourceAsStream(
processDefinition.getDeploymentId(), processDefinition.getDiagramResourceName());
// // 输出资源内容到相应对象
// byte[] b = new byte[1024];
// int len;
// while ((len = inputStream.read(b, 0, 1024)) != -1) {
// response.getOutputStream().write(b, 0, len);
// }
response.getOutputStream().write(IoUtil.readInputStream(inputStream, "processDefInputStream"));
return null;
}
