@Override
    public void setStatus(String id, Integer bpmStatus) {
        List<LyntglAmmeterInfoDO> lyntglAmmeterInfoDOS = lyntglAmmeterInfoMapper.selectBpmList(id);
        if (lyntglAmmeterInfoDOS != null && lyntglAmmeterInfoDOS.size()>0){
            lyntglAmmeterInfoDOS.forEach(item->{
                item.setStatus(Long.parseLong(bpmStatus.toString()));
                lyntglAmmeterInfoMapper.updateById(item);
            });
        }
        if (bpmStatus == 3){
            if (!lyntglAmmeterInfoDOS.isEmpty()) {
                String subNoBatch = lyntglAmmeterInfoDOS.get(0).getSubBatchNo(); // 假设subnobatch是你需要的参数
                // 执行kettle，传递subnobatch参数
                kettleUtils.runKTR(kettleFileName,subNoBatch);
            }
        }
    }

审批成功后执行kettle传递批次号参数

runKTR：

    /**
     * @title runKTR
     * @description 执行KTR文件
     * @param fileName
     * @param subBatchNo 提交批次号
     * @return Map
     */
    public Map<String,Object> runKTR(String fileName,String subBatchNo) {
        Map<String,Object> map = new HashMap<>();
        int code = 200;
        String msg = "";
        try {

            System.setProperty("KETTLE_PLUGIN_CLASSES", "org.pentaho.di.trans.steps.append.AppendMeta");

            // 初始化环境
            KettleEnvironment.init();

            TransMeta transMeta = new TransMeta(kettleFilePath+fileName);
            Trans trans = new Trans(transMeta);

            // 向作业中添加参数-批次号
            trans.setParameterValue("sub_batch_no", subBatchNo);

            // 执行Kettle作业
            trans.execute(null);
            trans.waitUntilFinished();
            if (trans.getErrors() > 0) {
                code = 500;
                msg = "KTR failed with errors.";
            }
            msg = "KTR executed successfully.";
        } catch (KettleException e) {
            msg = "Error-KTR: " + e.getMessage();
        }
        map.put("code",code);
        map.put("msg",msg);
        return map;
    }

需要的pom依赖：

      <!-- 关联kettle -->
        <dependency>
            <groupId>pentaho-kettle</groupId>
            <artifactId>kettle-core</artifactId>
        </dependency>
        <dependency>
            <groupId>pentaho-kettle</groupId>
            <artifactId>kettle-engine</artifactId>
        </dependency>

     <dependency>
            <groupId>org.pentaho.di.plugins</groupId>
            <artifactId>pdi-core-plugins-impl</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>