根據官方文檔在微信公衆號請求用戶網頁受權以前,開發者須要先到公衆平臺官網中的「開發 - 接口權限 - 網頁服務 - 網頁賬號 - 網頁受權獲取用戶基本信息」的配置選項中,修改受權回調域名。請注意,這裏填寫的是域名(是一個字符串),而不是URL,所以請勿加 http:// 等協議頭,也不須要加具體的項目名,在域名空間的根目錄放一個txt文件才能驗證經過java
package com.phil.wechatauth.model.req; import java.io.Serializable; import java.io.UnsupportedEncodingException; import java.util.Map; import java.util.TreeMap; import com.phil.common.config.SystemConfig; import com.phil.common.params.AbstractParams; import com.phil.common.util.HttpReqUtil; /** * 獲取受權code請求參數 * * @author phil * @date 2017年7月2日 * */ public class AuthCodeParams extends AbstractParams implements Serializable{ /** * */ private static final long serialVersionUID = 1L; public static final String SCOPE_SNSAPIBASE = "snsapi_base"; // snsapi_base(不須要彈出受權頁面,只能獲取openid) public static final String SCOPE_SNSPAIUSERINFO = "snsapi_userinfo"; // 彈出受權頁面(獲取用戶基本信息) private String appid; private String redirect_uri; // 使用urlencode對連接進行處理 private String response_type = "code"; private String scope; private String state; public AuthCodeParams() { super(); } public AuthCodeParams(String appid, String redirect_uri, String response_type, String scope, String state) { super(); this.appid = appid; this.redirect_uri = redirect_uri; this.response_type = response_type; this.scope = scope; this.state = state; } /** * 參數組裝 * * @return */ public Map<String, String> getParams() throws UnsupportedEncodingException { Map<String, String> params = new TreeMap<String, String>(); params.put("appid", this.appid); params.put("redirect_uri", HttpReqUtil.urlEncode(this.redirect_uri, SystemConfig.CHARACTER_ENCODING)); params.put("response_type", this.response_type); params.put("scope", this.scope); params.put("state", this.state); return params; } public String getAppid() { return appid; } public void setAppid(String appid) { this.appid = appid; } public String getRedirect_uri() { return redirect_uri; } public void setRedirect_uri(String redirect_uri) { this.redirect_uri = redirect_uri; } public String getResponse_type() { return response_type; } public String getScope() { return scope; } public void setScope(String scope) { this.scope = scope; } public String getState() { return state; } public void setState(String state) { this.state = state; } }
/** * 獲取受權請求path * @param basic * @param path * @return * @throws Exception */ public String getAuthPath(AbstractParams basic, String path) throws Exception{ Map<String,String> params = basic.getParams(); path = HttpRequestUtil.setParmas(params, path,"")+"#wechat_redirect"; return path; }
這裏經過code換取的是一個特殊的網頁受權access_token,與基礎支持中的access_token(該access_token用於調用其餘接口)不一樣。公衆號可經過下述接口來獲取網頁受權access_token。若是網頁受權的做用域爲snsapi_base,則本步驟中獲取到網頁受權access_token的同時,也獲取到了openid,snsapi_base式的網頁受權流程即到此爲止。redis
尤爲注意:因爲公衆號的secret和獲取到的access_token安全級別都很是高,必須只保存在服務器,不容許傳給客戶端。後續刷新access_token、經過access_token獲取用戶信息等步驟,也必須從服務器發起。json
請求參數封裝api
package com.phil.wechatauth.model.req; import java.io.Serializable; import java.util.Map; import java.util.TreeMap; import com.phil.common.params.AbstractParams; /** * 獲取受權請求token的請求參數 * @author phil * @date 2017年7月2日 * */ public class AuthTokenParams extends AbstractParams implements Serializable{ /** * */ private static final long serialVersionUID = 4652953400751046159L; private String appid; //公衆號的惟一標識 private String secret; //公衆號的appsecret private String code; //填寫第一步獲取的code參數 private String grant_type = "authorization_code"; public AuthTokenParams() { super(); } public AuthTokenParams(String appid, String secret, String code, String grant_type) { super(); this.appid = appid; this.secret = secret; this.code = code; this.grant_type = grant_type; } /** * 參數組裝 * @return */ public Map<String, String> getParams() { Map<String, String> params = new TreeMap<String, String>(); params.put("appid", this.appid); params.put("secret", this.secret); params.put("code", this.code); params.put("grant_type", this.grant_type); return params; } public String getAppid() { return appid; } public void setAppid(String appid) { this.appid = appid; } public String getSecret() { return secret; } public void setSecret(String secret) { this.secret = secret; } public String getCode() { return code; } public void setCode(String code) { this.code = code; } public String getGrant_type() { return grant_type; } }
返回的json封裝數組
package com.phil.wechatauth.model.resp; /** * 網頁受權access_token * * @author phil * @date 2017年7月2日 * */ public class AuthAccessToken extends AccessToken { private String refresh_token; // 用戶刷新access_token private String openid; // 用戶惟一標識,請注意,在未關注公衆號時,用戶訪問公衆號的網頁,也會產生一個用戶和公衆號惟一的OpenID private String scope; // 用戶受權的做用域,使用逗號(,)分隔 public String getRefresh_token() { return refresh_token; } public void setRefresh_token(String refresh_token) { this.refresh_token = refresh_token; } public String getOpenid() { return openid; } public void setOpenid(String openid) { this.openid = openid; } public String getScope() { return scope; } public void setScope(String scope) { this.scope = scope; } }
獲取access_token方法緩存
/** * 獲取網頁受權憑證 * @param basic * @param path * @return */ public AuthAccessToken getAuthAccessToken(AbstractParams basic, String path) { AuthAccessToken authAccessToken = null; //獲取網頁受權憑證 try { String result = HttpReqUtil.HttpsDefaultExecute(HttpReqUtil.GET_METHOD, path, basic.getParams(), null); if(result != null){ authAccessToken = JsonUtil.fromJson(result, AuthAccessToken.class); } } catch (Exception e) { authAccessToken = null; logger.info("error"+e.getMessage()); } return authAccessToken; }
獲取受權進入頁面安全
// 獲取token的連接 private final String ACCESS_TOKEN_URL = "https://api.weixin.qq.com/sns/oauth2/access_token"; @RequestMapping(value = "bindWxPhone", method = { RequestMethod.GET }) public String prize(HttpServletRequest request, HttpServletResponse response, String url) throws Exception { AuthAccessToken authAccessToken = null; // 用戶贊成受權後能夠得到code,檢驗state String code = request.getParameter("code"); if(code==null){ return null; } String state = request.getParameter("state"); if(state.equals(MD5Util.MD5Encode("ceshi", ""))){ AuthTokenParams authTokenParams = new AuthTokenParams(); authTokenParams.setAppid(""); authTokenParams.setSecret(""); authTokenParams.setCode(code); authAccessToken = oAuthService.getAuthAccessToken(authTokenParams, ACCESS_TOKEN_URL); } if(authAccessToken!=null){ logger.info("網頁受權的accessToken=" + authAccessToken.getAccess_token()); logger.info("正在綁定的openid=" + authAccessToken.getOpenid()); } return "/system/wxuserprize/bindPhone"; }
因爲access_token擁有較短的有效期,當access_token超時後,可使用refresh_token進行刷新,refresh_token有效期爲30天,當refresh_token失效以後,須要用戶從新受權。服務器
請求參數封裝微信
package com.phil.wechatauth.model.req; import java.io.Serializable; import java.util.Map; import java.util.TreeMap; import com.phil.common.params.AbstractParams; /** * 刷新token請求 * @author phil * @date 2017年7月2日 * */ public class RefreshTokenParams extends AbstractParams implements Serializable{ /** * */ private static final long serialVersionUID = -7200815808171378571L; private String appid; private String grant_type = "refresh_token"; private String refresh_token; public RefreshTokenParams(String appid, String grant_type, String refresh_token) { super(); this.appid = appid; this.grant_type = grant_type; this.refresh_token = refresh_token; } /** * 參數組裝 * * @return */ public Map<String, String> getParams() { Map<String, String> params = new TreeMap<String, String>(); params.put("appid", this.appid); params.put("grant_type", this.grant_type); params.put("refresh_token", this.refresh_token); return params; } public String getAppid() { return appid; } public void setAppid(String appid) { this.appid = appid; } public String getGrant_type() { return grant_type; } public String getRefresh_token() { return refresh_token; } public void setRefresh_token(String refresh_token) { this.refresh_token = refresh_token; } }
/** * 刷新網頁受權驗證 * @param basic 參數 * @param path 請求路徑 * @return */ public String refreshAuthAccessToken(AbstractParams basic, String path) { AuthAccessToken authAccessToken = null; //刷新網頁受權憑證 try { String result = HttpReqUtil.HttpsDefaultExecute(HttpReqUtil.GET_METHOD, path, basic.getParams(), null); if(result != null){ authAccessToken = JsonUtil.fromJson(result, AuthAccessToken.class); } } catch (Exception e) { authAccessToken = null; logger.info("error"+e.getMessage()); } return authAccessToken==null?null:authAccessToken.getAccess_token(); }
若是網頁受權做用域爲snsapi_userinfo,則此時能夠經過access_token和openid拉取用戶信息了app
經過網頁受權獲取的用戶信息
/** * 經過網頁受權獲取的用戶信息 * * @author phil */ public class AuthUserInfo { // 用戶標識 private String openid; // 用戶暱稱 private String nickname; // 性別(1是男性,2是女性,0是未知) private String sex; // 國家 private String country; // 省份 private String province; // 城市 private String city; // 用戶頭像連接 private String headimgurl; // 用戶特權信息 private List<String> privilege; // 只有在用戶將公衆號綁定到微信開放平臺賬號後,纔會出現該字段 private String unionid; public String getOpenid() { return openid; } public void setOpenid(String openid) { this.openid = openid; } public String getNickname() { return nickname; } public void setNickname(String nickname) { this.nickname = nickname; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } public String getCountry() { return country; } public void setCountry(String country) { this.country = country; } public String getProvince() { return province; } public void setProvince(String province) { this.province = province; } public String getCity() { return city; } public void setCity(String city) { this.city = city; } public String getHeadimgurl() { return headimgurl; } public void setHeadimgurl(String headimgurl) { this.headimgurl = headimgurl; } public List<String> getPrivilege() { return privilege; } public void setPrivilege(List<String> privilege) { this.privilege = privilege; } public String getUnionid() { return unionid; } public void setUnionid(String unionid) { this.unionid = unionid; } }
獲取方法
//獲取受權用戶信息 private final String USERINFO_URL = "https://api.weixin.qq.com/sns/userinfo"; /** * 經過網頁受權獲取用戶信息 * @param accessToken * @param openid * @return */ public AuthUserInfo getAuthUserInfo(String accessToken, String openid) { AuthUserInfo authUserInfo = null; //經過網頁受權獲取用戶信息 Map<String, String> params = new TreeMap<String, String>(); params.put("openid", openid); params.put("access_token", accessToken); String result = HttpReqUtil.HttpsDefaultExecute(HttpReqtUtil.GET_METHOD, USERINFO_URL, params, null); if(null != result){ try { authUserInfo = JsonUtil.fromJson(result, AuthUserInfo.class); } catch (JsonSyntaxException e) { logger.info("transfer exception"); } } return authUserInfo; }
//判斷用戶accessToken是否有效 private final String AUTH_URL = "https://api.weixin.qq.com/sns/auth"; /** * 檢驗受權憑證(access_token)是否有效 * @param accessToken 網頁受權接口調用憑證 * @param openid 用戶的惟一標識 * @return { "errcode":0,"errmsg":"ok"}表示成功 { "errcode":40003,"errmsg":"invalid openid"}失敗 */ public ResultState authToken(String accessToken,String openid){ ResultState state = null; Map<String,String> params = new TreeMap<String,String>(); params.put("access_token",accessToken); params.put("openid", openid); String json = HttpReqUtil.HttpsDefaultExecute(HttpReqUtil.GET_METHOD, AUTH_URL, params,""); if(json!=null){ state = JsonUtil.fromJson(json, ResultState.class); } return state; }