#进行授权操作
$ chmod a+x natapp
# 在natapp文件的当前路径运行
$ ./natapp -authtoken={此处填写authtoken值}

@RequestMapping("/wechat")
@Controller
public class TestnatappController {private static Logger logger = Logger.getLogger(TestnatappController.class);private static String WECHAT_TOKEN = "DQicy";@RequestMapping(value = "/wx.do")public void get(HttpServletRequest request, HttpServletResponse response) throws Exception {logger.error("WechatController   ----   WechatController");System.out.println("========WechatController========= ");logger.info("请求进来了...");Enumeration pNames = request.getParameterNames();while (pNames.hasMoreElements()) {String name = (String) pNames.nextElement();String value = request.getParameter(name);// out.print(name + "=" + value);String log = "name =" + name + "     value =" + value;logger.error(log);}String signature = request.getParameter("signature");/// 微信加密签名String timestamp = request.getParameter("timestamp");/// 时间戳String nonce = request.getParameter("nonce"); /// 随机数String echostr = request.getParameter("echostr"); // 随机字符串PrintWriter out = response.getWriter();//if (SignUtil.checkSignature(signature, timestamp, nonce)) {out.print(echostr);
//      }sout.close();
//      out = null;}
}

package com.imooc.controller;
@RestController
@RequestMapping("/weixin")
@Slf4j
public class WeixinController {@GetMapping("/auth")public void auth(@RequestParam("code") String code) {log.info("进入auth方法...");log.info("code={}", code);}
}

       String url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=wx45ea7710b15596a9&secret=0dffebbdf4591d3de7f76ebc08d5f13d&code=" + code + "&grant_type=authorization_code";RestTemplate restTemplate = new RestTemplate();String response = restTemplate.getForObject(url,String.class);log.info("response={}",response);

@Data
@Component
//下面注解的作用：spring-boot 提供该注解将配置文件的值映射到类上使用
@ConfigurationProperties(prefix = "wechat")
public class WechatAccountConfig {//公众平台Idprivate String mpAppId;//公众平台密钥private String mpAppSecret;
}

@Component
public class WechatMpConfig {@Autowiredprivate WechatAccountConfig accountConfig;@Beanpublic WxMpService wxMpService(){WxMpService wxMpService = new WxMpServiceImpl();wxMpService.setWxMpConfigStorage(wxMpConfigStorage());return wxMpService;}@Beanpublic WxMpConfigStorage wxMpConfigStorage() {WxMpInMemoryConfigStorage wxMpConfigStorage = new WxMpInMemoryConfigStorage();wxMpConfigStorage.setAppId(accountConfig.getMpAppId());wxMpConfigStorage.setSecret(accountConfig.getMpAppSecret());return wxMpConfigStorage;}
}

@Controller
@RequestMapping("/wechat")
@Slf4j
public class WechatController {@Autowiredprivate WxMpService wxMpService;@GetMapping("/authorize")public String authorize(@RequestParam("returnUrl") String returnUrl){//1.配置//2.调用方法 (重定向)String url = "http://.../sell/wechat/userInfo";String redirectUrl = wxMpService.oauth2buildAuthorizationUrl(url,WxConsts.OAUTH2_SCOPE_BASE, URLEncoder.encode(returnUrl));log.info("[微信网页授权] 获得code, result={}", redirectUrl);return "redirect:" + redirectUrl ;}//下面为重定向后到达的方法@GetMapping("/userInfo")public String userInfo(@RequestParam("code") String code,@RequestParam("state") String returnUrl){WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken();try {wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);}catch (WxErrorException e){log.error("[微信网页授权] {}",e);throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode() , e.getError().getErrorMsg());}return "redirect:" + returnUrl + "?openid=" + openId;}}