/**
* 获得用户认证的地址
*
* @param redirectURL
* @return
*/
public String getOAuthURL(String redirectURL) throws UnsupportedEncodingException {
Map<String, Object> parameters = new HashMap<>();
parameters.put("appid", this.appid);
parameters.put("redirect_uri", URLEncoder.encode(redirectURL, "utf-8"));
parameters.put("response_type", "code");
parameters.put("scope", "snsapi_userinfo");
parameters.put("state", StringUtils.randomString(8));
return _USER_AUTH_URL_
+ "?"
+ StringUtils.generateQueryString(parameters, false)
+ "#wechat_redirect";
}
/**
* 获得授权用户基本信息
*
* @param accessToken
* @param openId
* @return
*/
public UserInfo getUserInfo(String accessToken, String openId) {
Map<String, Object> parameters = new HashMap<>();
parameters.put("access_token", accessToken);
parameters.put("openid", openId);
parameters.put("lang", "zh_CN");
String url = _USER_INFO_URL_ + "?" + StringUtils.generateQueryString(parameters, false);
String result = WebUtils.get(url);
UserInfo userInfo = null;
if (result != null) {
Gson gson = new Gson();
userInfo = gson.fromJson(result, UserInfo.class);
}
return userInfo;
}
/**
* 获取用户授权后的访问票据
*
* @param code
* @return
*/
public AccessToken getAccessToken(String code) {
Map<String, Object> parameters = new HashMap<>();
parameters.put("appid", this.appid);
parameters.put("secret", this.appSecret);
parameters.put("code", code);
parameters.put("grant_type", "authorization_code");
String url = _ACCESS_URL_ + "?" + StringUtils.generateQueryString(parameters, false);
String result = WebUtils.get(url);
AccessToken accessToken = null;
if (result != null) {
Gson gson = new Gson();
accessToken = gson.fromJson(result, AccessToken.class);
}
return accessToken;
}