{"access_token":"ACCESS_TOKEN","expires_in":7200}

{"errcode":40013,"errmsg":"invalid appid"}

/**
 * 類名: Token.java</br> 
 * 描述: 憑證</br> 
 */
public class Token {
  // 接口訪問憑證
  private String accessToken;
  // 憑證有效期，單位：秒
  private int expiresIn;

  public String getAccessToken() {
    return accessToken;
  }

  public void setAccessToken(String accessToken) {
    this.accessToken = accessToken;
  }

  public int getExpiresIn() {
    return expiresIn;
  }

  public void setExpiresIn(int expiresIn) {
    this.expiresIn = expiresIn;
  }
}

  /**
   * 獲取接口訪問憑證
   * @param appid 憑證
   * @param appsecret 密鑰
   * @return
   */
  public static Token getToken(String appid, String appsecret) {
    Token token = null;
    String requestUrl = WeixinConstants.TOKEN_URL.replace("APPID", appid).replace("APPSECRET", appsecret);
    // 發(fā)起GET請(qǐng)求獲取憑證
    JSONObject jsonObject = httpsRequest(requestUrl, "GET", null);

    if (null != jsonObject) {
      try {
        token = new Token();
        token.setAccessToken(jsonObject.getString("access_token"));
        token.setExpiresIn(jsonObject.getInt("expires_in"));
      } catch (JSONException e) {
        token = null;
        // 獲取token失敗
        log.error("獲取token失敗 errcode:{} errmsg:{}", jsonObject.getInt("errcode"), jsonObject.getString("errmsg"));
      }
    }
    return token;
  }

  /**
   * 發(fā)送https請(qǐng)求
   * @param requestUrl 請(qǐng)求地址
   * @param requestMethod 請(qǐng)求方式（GET、POST）
   * @param outputStr 提交的數(shù)據(jù)
   * @return JSONObject(通過JSONObject.get(key)的方式獲取json對(duì)象的屬性值)
   */
  public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) {
    JSONObject jsonObject = null;
    try {
      // 創(chuàng)建SSLContext對(duì)象，并使用我們指定的信任管理器初始化
      TrustManager[] tm = { new MyX509TrustManager() };
      SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
      sslContext.init(null, tm, new java.security.SecureRandom());
      // 從上述SSLContext對(duì)象中得到SSLSocketFactory對(duì)象
      SSLSocketFactory ssf = sslContext.getSocketFactory();

      URL url = new URL(requestUrl);
      HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
      conn.setSSLSocketFactory(ssf);

      conn.setDoOutput(true);
      conn.setDoInput(true);
      conn.setUseCaches(false);
      // 設(shè)置請(qǐng)求方式（GET/POST）
      conn.setRequestMethod(requestMethod);

      // 當(dāng)outputStr不為null時(shí)向輸出流寫數(shù)據(jù)
      if (null != outputStr) {
        OutputStream outputStream = conn.getOutputStream();
        // 注意編碼格式
        outputStream.write(outputStr.getBytes("UTF-8"));
        outputStream.close();
      }

      // 從輸入流讀取返回內(nèi)容
      InputStream inputStream = conn.getInputStream();
      InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
      BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
      String str = null;
      StringBuffer buffer = new StringBuffer();
      while ((str = bufferedReader.readLine()) != null) {
        buffer.append(str);
      }

      // 釋放資源
      bufferedReader.close();
      inputStreamReader.close();
      inputStream.close();
      inputStream = null;
      conn.disconnect();
      jsonObject = JSONObject.fromObject(buffer.toString());
    } catch (ConnectException ce) {
      log.error("連接超時(shí)：{}", ce);
    } catch (Exception e) {
      log.error("https請(qǐng)求異常：{}", e);
    }
    return jsonObject;
  }

/**
 * 類名: MyX509TrustManager.java</br> 
 * 描述: 信任管理器</br> 
 */
public class MyX509TrustManager implements X509TrustManager {

  // 檢查客戶端證書
  public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
  }

  // 檢查服務(wù)器端證書
  public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
  }

  // 返回受信任的X509證書數(shù)組
  public X509Certificate[] getAcceptedIssuers() {
    return null;
  }
}