声明版本：activiti 5.22.0 1、流程设计器保存模板

public void saveModel(String modelId, String name, String description, String json_xml, String svg_xml) throws IOException {		Model model = repositoryService.getModel(modelId);		ObjectNode modelJson = (ObjectNode) new ObjectMapper().readTree(model.getMetaInfo());		modelJson.put(MODEL_NAME, name);		modelJson.put(MODEL_DESCRIPTION, description);		model.setMetaInfo(modelJson.toString());		model.setName(name);		repositoryService.saveModel(model);		repositoryService.addModelEditorSource(model.getId(), json_xml.getBytes("utf-8"));		InputStream svgStream = new ByteArrayInputStream(svg_xml.getBytes("utf-8"));		final byte[] result = IOUtils.toByteArray(svgStream);		repositoryService.addModelEditorSourceExtra(model.getId(), result);	}

2、直接从bpmn文件导入转换成模板

public String convertInputStreamToModel(InputStream is, String name,			String key, String description) {		String modelId = null;				XMLInputFactory xif = XMLInputFactory.newInstance();		InputStreamReader isr = null;		XMLStreamReader xtr = null;		try {			isr = new InputStreamReader(is, "utf-8");			xtr = xif.createXMLStreamReader(isr);			BpmnModel bpmnModel = new BpmnXMLConverter().convertToBpmnModel(xtr);			// 处理异常			if (bpmnModel.getMainProcess() == null					|| bpmnModel.getMainProcess().getId() == null) {				throw new BizException("模板文件可能存在问题，请检查后重试！");			}						ObjectNode modelNode = new BpmnJsonConverter().convertToJson(bpmnModel);			Model modelData = repositoryService.newModel();			modelData.setKey(key);			modelData.setName(name);			ObjectNode modelObjectNode = new ObjectMapper().createObjectNode();			modelObjectNode.put(ModelDataJsonConstants.MODEL_NAME, name);			modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, 1);			modelObjectNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);			modelData.setMetaInfo(modelObjectNode.toString());						//校验流程类型key，并自动校正			updateProcessKey(modelNode);						repositoryService.saveModel(modelData);			repositoryService.addModelEditorSource(modelData.getId(), modelNode.toString().getBytes("utf-8"));						modelId = modelData.getId();		} catch (Exception e) {			e.printStackTrace();			throw new BizException("模板文件存在问题，操作失败！");		} finally {			try {				xtr.close();			} catch (XMLStreamException e) {				e.printStackTrace();			}			try {				isr.close();			} catch (IOException e) {				e.printStackTrace();			}			try {				is.close();			} catch (IOException e) {				e.printStackTrace();			}					}		return modelId;	}

3、模板导出bpmn文件

public void exportModel(HttpServletResponse response, String modelId) {		BufferedOutputStream bos = null;  		try {  	  	     	        Model modelData = repositoryService.getModel(modelId);  	  	        byte[] modelEditorSource = repositoryService  	                .getModelEditorSource(modelData.getId()); 	        JsonNode editorNode = new ObjectMapper().readTree(modelEditorSource);	        BpmnJsonConverter jsonConverter = new BpmnJsonConverter();	        BpmnModel model = jsonConverter.convertToBpmnModel(editorNode);	        byte[] bpmnBytes;	        	        try {				bpmnBytes = new BpmnXMLConverter().convertToXML(model);			} catch (Exception e) {				bpmnBytes = new byte[10];			}	  	        // 封装输出流  	        bos = new BufferedOutputStream(response.getOutputStream());  	        bos.write(bpmnBytes);// 写入流  	        String filename = modelData.getName();	        if(StringUtils.isNoneBlank(filename) && filename.length() > 20) {	        	filename = filename.substring(0, 20);	        }	        filename +=".bpmn20.xml";  	        response.setContentType("application/x-msdownload;");  	        response.setHeader("Content-Disposition",  	                "attachment; filename=" + URLEncoder.encode(filename, "UTF-8"));  	        response.flushBuffer();  		} catch (Exception e) {    			LogUtils.error("下载模板失败："+modelId+"erro:"+e);		}finally {  	        try {				bos.flush();			} catch (IOException e) {				e.printStackTrace();			}  	        try {				bos.close();			} catch (IOException e) {				e.printStackTrace();			}  	    }	}

4、模板发布为流程

public Deployment convertModelToProcess(String modelId) throws IOException, UnsupportedEncodingException {		Deployment deployment = null;		try {			Model modelData = repositoryService.getModel(modelId);			ObjectNode modelNode = (ObjectNode) new ObjectMapper()					.readTree(repositoryService.getModelEditorSource(modelData.getId()));			byte[] bpmnBytes = null;			BpmnModel model = new BpmnJsonConverter().convertToBpmnModel(modelNode);			bpmnBytes = new BpmnXMLConverter().convertToXML(model);			String processName = modelData.getName() + ".bpmn20.xml";			deployment = repositoryService.createDeployment().name(modelData.getName())					.addString(processName, new String(bpmnBytes, "UTF-8")).deploy();		} catch (Exception e1) {			throw new BizException("流程定义文件存在错误，请修改后重新部署！");		} 		return deployment;	}