/** * @author why * */public class PicDownload {/** * * 根据文件id下载文件 * * * * @param mediaId * *媒体id * * @throws Exception */public static InputStream getInputStream(String accessToken, String mediaId) {InputStream is = null;String url = "?access_token="+ accessToken + "&media_id=" + mediaId;try {URL urlGet = new URL(url);HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();http.setRequestMethod("GET"); // 必须是get方式请求http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");http.setDoOutput(true);http.setDoInput(true);System.setProperty("sun.net.client.defaultConnectTimeout", "30000");// 连接超时30秒System.setProperty("sun.net.client.defaultReadTimeout", "30000"); // 读取超时30秒http.connect();// 获取文件转化为byte流is = http.getInputStream();} catch (Exception e) {e.printStackTrace();}return is;}/** * * 获取下载图片信息（jpg） * * * * @param mediaId * *文件的id * * @throws Exception */public static void saveImageToDisk(String accessToken, String mediaId, String picName, String picPath)throws Exception {InputStream inputStream = getInputStream(accessToken, mediaId);byte[] data = new byte[10240];int len = 0;FileOutputStream fileOutputStream = null;try {fileOutputStream = new FileOutputStream(picPath+picName+".jpg");while ((len = inputStream.read(data)) != -1) {fileOutputStream.write(data, 0, len);}} catch (IOException e) {e.printStackTrace();} finally {if (inputStream != null) {try {inputStream.close();} catch (IOException e) {e.printStackTrace();}}if (fileOutputStream != null) {try {fileOutputStream.close();} catch (IOException e) {e.printStackTrace();}}}}/** * 图片下载 * * @param accessToken * @param mediaId */public static void getPic(String accessToken, String mediaId) {String requestUrl = "?access_token=ACCESS_TOKEN&media_id=MEDIA_ID";requestUrl = requestUrl.replace("ACCESS_TOKEN", accessToken).replace("MEDIA_ID", mediaId);JSONObject jsonObject = WeixinUtil.httpRequest(requestUrl, "GET", null);System.out.println(jsonObject);}public static void main(String[] args) throws Exception {String accessToken = "";String mediaId = "";String picName = "";saveImageToDisk(accessToken, mediaId, picName,"f:/");}}
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我就想是一只草原中被牧童遗忘的羊，
