java http远程调用接口下载文件

远程调用http接口下载文件，接口返回流

一、将文件保存本地

public String httpDownload(String httpUrl){    try {        URL url = new URL(httpUrl) ;        //filePath文件地址，fileName文件名        File file = new File(filePath, fileName);        FileUtils.copyURLToFile(url,file);    } catch (IOException e) {        logger.info("用印文件下载失败:{}",e.getMessage());        return null;    }    //文件地址    return basePath + "/" + fileName;}

二、将接收到流直接返回

public void httpDownload(String httpUrl,HttpServletResponse response)throws IOException{        URL url = new URL(httpUrl) ;        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection() ;        urlConnection.connect() ;        OutputStream outputStream = response.getOutputStream();        InputStream inputStream = urlConnection.getInputStream() ;        IOUtils.copy(inputStream,outputStream);        inputStream.close();        response.flushBuffer();        outputStream.close();}

来源地址：https://blog.csdn.net/a1k2l45k/article/details/131688786