Process需要注意的地方

try {

String [] filePathSplit = filePath.split("/");

String dictCode="FilePathFromTBPM";

ListDictByCodePo listDictByCodePo = new ListDictByCodePo();

listDictByCodePo.setDictCode(dictCode);

BaseResult<SysDictVo> sysDictVoResult = fileCenterService.listDictByCode(listDictByCodePo);

String configPath = sysDictVoResult.getData().getPath();

log.info("配置的TBPM文件路径:"+configPath);

String fileName = System.currentTimeMillis()+"."+fileType;

String tempPath = "/home/SiteSelection/Temp/";

String downLoadPath = tempPath+fileName;

// 文件完整路径

String fullPath = configPath.concat("/").concat(filePath);

//cp命令复制文件

log.info("复制文件开始");

Process process =null;

String cpCommand = "cp " +" "+ fullPath+" "+downLoadPath;

    process = Runtime.getRuntime().exec(cpCommand);

    log.info(IOUtils.toString(process.getInputStream()));//坑点：这个加入的作用相当于 在linux命令行敲入回车键

    process.destroy();

    log.info("复制文件结束");

log.info("开始下载附件文件: " + downLoadPath);

long start = System.currentTimeMillis();

PhotoUtil.downloadPhoto(downLoadPath, response,fileName);

log.info("附件文件: " + downLoadPath + " 下载完成, 耗时: " + (System.currentTimeMillis() - start));

log.info("获取附件文件请求结束");

//删除临时文件

log.info("删除文件开始");

FileUtils.forceDelete(new File(downLoadPath));

    log.info("删除文件结束");

} catch (Exception e) {

log.error("获取附件文件失败:" + e.getMessage(), e);

throw new Exception("获取附件文件失败！");

}