根据网络地址下载文件到本地

朴灿烈づ我的快乐病毒、 2024-03-23 10:02 63阅读 0赞

public static void test() {
            String fileName = "D:\\222.png";
            try {
                HttpClientUtil.httpDownload("http://10.50.13.99:9017/image/202303291048_6b74e443-9d54-4b8e-a7cc-843a72a2608a",fileName);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
    
        /**
         * 功能描述: 下载网络文件
         *
         * @param httpUrl
         * @param dest
         * @return boolean
         * @author 
         * @version 1.0
         */
        public static boolean httpDownload(String httpUrl, String dest) throws IOException {
            // 1.下载网络文件
            int byteRead;
            URL url;
            try {
                url = new URL(httpUrl);
            } catch (MalformedURLException e1) {
                e1.printStackTrace();
                return false;
            }
            URLConnection conn = null;
            InputStream inStream = null;
            FileOutputStream fs = null;
            try {
                //2.获取链接
                conn = url.openConnection();
                //3.输入流
                inStream = conn.getInputStream();
                //3.写入文件
                fs = new FileOutputStream(dest);
    
                byte[] buffer = new byte[1024];
                while ((byteRead = inStream.read(buffer)) != -1) {
                    fs.write(buffer, 0, byteRead);
                }
                return true;
            } catch (FileNotFoundException e) {
                e.printStackTrace();
                return false;
            } catch (IOException e) {
                e.printStackTrace();
                return false;
            }finally {
                try {
                    if (fs != null){
                        fs.close();
                    }
                    if (inStream != null){
                        inStream.close();
                    }
                } catch (IOException ex) {
                    logger.error(ex.getMessage());
                }
            }
        }