02.flowable 流程模板导入

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该代码段展示了如何验证并部署BPMN2.0流程文件。首先，检查文件名是否以'bpmn20.xml'结尾，然后读取文件并上传进行部署。如果指定了租户ID，则为每个租户部署；否则，不指定租户进行部署。同时，对部署的流程文件设置分类。

1.演示

在这里插入图片描述

2.导入方法

先验证导入文件格式是否已.bpmn20.xml结尾，再实现部署。

检查流程文件格式

RetBeanData retBeanData = new RetBeanData();
        Map<String, Object> map = new HashMap<>();
        map.put("name", file.getOriginalFilename());
        boolean temp = Objects.requireNonNull(file.getOriginalFilename()).endsWith(FlowEngineConstant.SUFFIX);
        map.put("success", temp);
        retBeanData.setData(map);
        return retBeanData;

上传部署流程文件

public Object managerDeployUpload(MultipartFile file, String category, String[] tenantIds) {
        try {
            String fileName = file.getOriginalFilename();
            InputStream fileInputStream = file.getInputStream();
            byte[] bytes = this.copyToByteArray(fileInputStream);
            if (!StringUtil.isEmpty(tenantIds)) {
                for (String tenantId : tenantIds) {
                    Deployment deployment = repositoryService.createDeployment().addBytes(fileName, bytes).tenantId(tenantId).deploy();
                    deploy(deployment, category);
                }
            } else {
                Deployment deployment = repositoryService.createDeployment().addBytes(fileName, bytes).deploy();
                deploy(deployment, category);

            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return new RetBean();
    }
    
	public byte[] copyToByteArray(InputStream in) throws IOException {
        if (in == null) {
            return new byte[0];
        } else {
            ByteArrayOutputStream out = new ByteArrayOutputStream(4096);
            Assert.notNull(in, "No InputStream specified");
            Assert.notNull(out, "No OutputStream specified");
            int var2;
            try {
                var2 = StreamUtils.copy(in, out);
            } finally {
                in.close();
                out.close();
            }
            return out.toByteArray();
        }
    }

    public Object deploy(Deployment deployment, String category) {
        List<ProcessDefinition> list = repositoryService.createProcessDefinitionQuery().deploymentId(deployment.getId()).list();
        // 设置流程分类
        for (ProcessDefinition processDefinition : list) {
            if (!StringUtil.isEmpty(category)) {
                repositoryService.setProcessDefinitionCategory(processDefinition.getId(), category);
            }
        }
        if (list.size() == 0) {
            return new RetBean().backError();
        } else {
            return new RetBean();
        }
    }