增加微信授权

src/main/java/org/rcisoft/wechat/WechatRedirectController.java

+package org.rcisoft.wechat;
+
+import me.chanjar.weixin.mp.bean.result.WxMpUser;
+import org.rcisoft.wechat.service.WxPortalService;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.servlet.ModelAndView;
+
+import javax.annotation.Resource;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * 网页授权微信回调接口
+ * @author David
+ */
+@Controller
+@RequestMapping("/wechat")
+public class WechatRedirectController {
+
+    @Resource
+    private WxPortalService service;
+
+    @RequestMapping(value = {"/index"})
+    public String index(String code) {
+
+        try {
+            WxMpUser wxUser = this.service.oauth2UserInfo(code);
+            System.out.println("微信返回的code: " + code);
+            System.out.println("WxPortalController授权完毕后获取到的OpenId是：" + wxUser.getOpenId());
+            return "redirect:http://weega.cn.tunnel.qydev.com/login.html?openId=" + wxUser.getOpenId();
+        } catch (Exception exception) {
+            exception.printStackTrace();
+            return "redirect:http://weega.cn.tunnel.qydev.com/error.html";
+        }
+    }
+
+}

src/main/java/org/rcisoft/wechat/service/WxPortalService.java

+package org.rcisoft.wechat.service;
+
+import me.chanjar.weixin.common.bean.WxJsapiSignature;
+import me.chanjar.weixin.common.exception.WxErrorException;
+import me.chanjar.weixin.mp.api.WxMpInMemoryConfigStorage;
+import me.chanjar.weixin.mp.api.impl.WxMpServiceImpl;
+import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
+import me.chanjar.weixin.mp.bean.result.WxMpUser;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.PostConstruct;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * 获取微信用户信息
+ * @author david
+ */
+@Service
+public class WxPortalService extends WxMpServiceImpl {
+
+    @Value("${wechat.mp.appId}")
+    String appId;
+
+    @Value("${wechat.mp.secret}")
+    String secret;
+
+    @Value("${wechat.mp.token}")
+    String token;
+
+    @Value("${wechat.mp.aesKey}")
+    String aesKey;
+
+    private final Logger logger = LoggerFactory.getLogger(this.getClass());
+    public WxPortalService() {
+    }
+    @PostConstruct
+    public void init() {
+        WxMpInMemoryConfigStorage config = new WxMpInMemoryConfigStorage();
+        config.setAppId(appId);
+        config.setSecret(secret);
+        config.setToken(token);
+        config.setAesKey(aesKey);
+        super.setWxMpConfigStorage(config);
+    }
+    public WxMpOAuth2AccessToken oauth2AccessToken(String code) throws WxErrorException {
+        WxMpOAuth2AccessToken token = this.oauth2getAccessToken(code);
+        System.out.println("token:" + token.getAccessToken() + "; code: " + code);
+        return token;
+    }
+    public WxMpUser oauth2UserInfo(String code) throws WxErrorException {
+        WxMpOAuth2AccessToken token = this.oauth2AccessToken(code);
+        return token != null?this.oauth2getUserInfo(token, (String)null):null;
+    }
+    public WxJsapiSignature getJsApiTicket(String url) throws WxErrorException {
+        return this.createJsapiSignature(url);
+    }
+
+}