springboot全局异常,springboot怎么注销

一、首先去腾讯开放平台申请相应的appid等，完成后在yml文件配置如下：

constants:
    # QQ
    qqAppId: *****
    qqAppSecret: *****
    qqRedirectUrl: *****
    #WECHAT
    weChatAppId: *****
    weChatAppSecret: *****
    weChatRedirectUrl: *****

建立配置类Constants：

/** * 常量配置类 */@Configuration@ConfigurationProperties(prefix = "constants")public class Constants {@NotEmptyprivate String qqAppId;@NotEmptyprivate String qqAppSecret;@NotEmptyprivate String qqRedirectUrl;@NotEmptyprivate String weChatAppId;@NotEmptyprivate String weChatAppSecret;@NotEmptyprivate String weChatRedirectUrl;public String getQqAppId() {return qqAppId;}public void setQqAppId(String qqAppId) {this.qqAppId = qqAppId;}public String getQqAppSecret() {return qqAppSecret;}public void setQqAppSecret(String qqAppSecret) {this.qqAppSecret = qqAppSecret;}public String getQqRedirectUrl() {return qqRedirectUrl;}public void setQqRedirectUrl(String qqRedirectUrl) {this.qqRedirectUrl = qqRedirectUrl;}public String getWeChatAppId() {return weChatAppId;}public void setWeChatAppId(String weChatAppId) {this.weChatAppId = weChatAppId;}public String getWeChatAppSecret() {return weChatAppSecret;}public void setWeChatAppSecret(String weChatAppSecret) {this.weChatAppSecret = weChatAppSecret;}public String getWeChatRedirectUrl() {return weChatRedirectUrl;}public void setWeChatRedirectUrl(String weChatRedirectUrl) {this.weChatRedirectUrl = weChatRedirectUrl;}}

二、返回前端登录调用地址：

根据不同的登录类型返回相应的地址，前端直接使用新窗口或者悬浮窗口打开：

public String getLoginUrl(User user) {if ("1".equals(user.getLoginType())) {// QQreturn "https://graph.qq.com/oauth2.0/authorize?response_type=code&client_id="+ constants.getQqAppId()+ "&redirect_uri="+ constants.getQqRedirectUrl()+ "&state="+ user.getAddress();} else {// 微信try {return "https://open.weixin.qq.com/connect/qrconnect?appid="+ constants.getWeChatAppId()+ "&redirect_uri="+ constants.getWeChatRedirectUrl()+ "&response_type=code&scope=snsapi_login&state="+ URLEncoder.encode(URLEncoder.encode(user.getAddress(), "utf-8"),"utf-8") + "#wechat_redirect";} catch (UnsupportedEncodingException e) {e.printStackTrace();return null;}}}

三、前端打开后会出现登录的二维码等，扫描之后会跳转到我们配置的redirect_uri并在url后面返回code参数和我们自定义的state参数

四、根据code拿到accessToken和openid

这一步稍有区别，qq必须先通过code获取accesstoken,再通过accesstoken获取openid；微信则通过code直接获取accesstoken 和openid

qq:

public String getAccessToken(String code) {String url = "https://graph.qq.com/oauth2.0/token?grant_type=authorization_code&client_id="+ constants.getQqAppId()+ "&client_secret="+ constants.getQqAppSecret()+ "&code="+ code+ "&redirect_uri=" + constants.getQqRedirectUrl();String resp = RestTemplateUtil.getRestTemplate().getForObject(url,String.class);if (resp != null && resp.contains("access_token")) {Map<String, String> map = RestTemplateUtil.getParam(resp);String access_token = map.get("access_token");return access_token;}return null;} public String getOpenId(String accessToken) {String url = "https://graph.qq.com/oauth2.0/me?access_token="+ accessToken;String resp = RestTemplateUtil.getRestTemplate().getForObject(url,String.class);if (resp != null && resp.contains("openid")) {JSONObject jsonObject = RestTemplateUtil.convertToJson(resp);String openid = jsonObject.getString("openid");return openid;}return null;}

微信：

public AccessToken getAccessToken(String code) {String url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid="+ constants.getWeChatAppId() + "&secret="+ constants.getWeChatAppSecret() + "&code=" + code+ "&grant_type=authorization_code";String resp = RestTemplateUtil.getRestTemplate().getForObject(url,String.class);if (resp != null && resp.contains("access_token")) {AccessToken accessToken = JSON.parseObject(resp, AccessToken.class);return accessToken;}return null;}

AccessToken 对象为：

/** * 接口调用凭证 */private String access_token;/** * access_token接口调用凭证超时时间，单位（秒） */private Integer expires_in;/** * 用户刷新access_token */private String refresh_token;/** * 授权用户唯一标识 */private String openid;/** * 用户授权的作用域，使用逗号（,）分隔 */private String scope;/** * 当且仅当该网站应用已获得该用户的userinfo授权时，才会出现该字段。 */private String unionid;

五：根据accesstoken 和openid获取用户信息

qq:

public String getUserInfo(String accessToken, String openId) {String url = "https://graph.qq.com/user/get_user_info?access_token="+ accessToken + "&oauth_consumer_key=" + constants.getQqAppId()+ "&openid=" + openId;String resp = RestTemplateUtil.getRestTemplate().getForObject(url,String.class);return resp;}

微信：

/** * 获取用户信息 * * @param accessToken * @param openId * @param lang * 非必须（国家地区语言版本，zh_CN 简体，zh_TW 繁体，en 英语，默认为zh-CN） * @return */@Overridepublic String getUserInfo(String accessToken, String openId, String lang) {String url = "https://api.weixin.qq.com/sns/userinfo?access_token="+ accessToken + "&openid=" + openId;if (lang != null && !"".equals(lang)) {url += "&lang=" + lang;}String resp = RestTemplateUtil.getRestTemplate().getForObject(url,String.class);return resp;}