问题描述
- 大家感觉这种获取微信Access_Token方法如何
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public class WxTokenUtil {private static String FileName = "WxTokenUtil.properties"; private static String APPID = "fsdafsd"; private static String APPSECRET = "dfsdsaf"; public synchronized static String getAccessToken() { try{ // 文件获取token值及时间 Properties prop = new Properties();// 属性集合对象 InputStream fis =WxTokenUtil.class.getClassLoader().getResourceAsStream(FileName); prop.load(fis);// 将属性文件流装载到Properties对象中 fis.close();// 关闭流 String access_token = prop.getProperty("access_token"); String expires_in = prop.getProperty("expires_in"); String last_time = prop.getProperty("last_time"); int int_expires_in = 0; long long_last_time = 0; try{ int_expires_in = Integer.parseInt(expires_in); long_last_time = Long.parseLong(last_time); }catch(Exception e){ } long current_time = System.currentTimeMillis(); // 如果token时间超时,重新获取 if ((current_time - long_last_time) / 1000 >= int_expires_in) { String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + APPID + "&secret=" + APPSECRET; JSONObject jobject = httpRequest(url); String j_access_token = (String) jobject.get("access_token"); String j_expires_in = (String) jobject.get("expires_in"); //保存 if(j_access_token!=null && j_expires_in!=null){ prop.setProperty("access_token", j_access_token); prop.setProperty("expires_in", j_expires_in); prop.setProperty("last_time", System.currentTimeMillis()+""); URL url_ = WxTokenUtil.class.getClassLoader().getResource(FileName); FileOutputStream fos= new FileOutputStream(new File(url_.toURI())); prop.store(fos, null); fos.close();// 关闭流 } return j_access_token; } else { return access_token; } } catch(Exception e){ return null; } } // -- public synchronized static JSONObject httpRequest(String requestUrl) { JSONObject jsonObject = null; StringBuffer buffer = new StringBuffer(); try { URL url = new URL(requestUrl); HttpsURLConnection httpUrlConn = (HttpsURLConnection) url .openConnection(); httpUrlConn.setDoOutput(true); httpUrlConn.setDoInput(true); httpUrlConn.setUseCaches(false); // 设置请求方式(GET/POST) httpUrlConn.setRequestMethod("GET"); httpUrlConn.connect(); // 将返回的输入流转换成字符串 InputStream inputStream = httpUrlConn.getInputStream(); InputStreamReader inputStreamReader = new InputStreamReader( inputStream, "utf-8"); BufferedReader bufferedReader = new BufferedReader( inputStreamReader); String str = null; while ((str = bufferedReader.readLine()) != null) { buffer.append(str); } bufferedReader.close(); inputStreamReader.close(); // 释放资源 inputStream.close(); inputStream = null; httpUrlConn.disconnect(); jsonObject = JSONObject.fromObject(buffer.toString()); } catch (Exception e) { e.printStackTrace(); } return jsonObject; }
解决方案
能获取到数据么? 之前做微信公共号开发时,用的是第三方的dll
时间: 2024-12-23 14:33:31