35。springboot小程序不需要授权登录

　　不需要授权的登录，只能获取到openId,有openId便可从数据库中关联到平台中的用户。
　　引入包：                           com.github.binarywang             weixin-java-miniapp             3.6.0         
　　WxMaConfiguration：package com.haiyeren.config;  import cn.binarywang.wx.miniapp.api.WxMaService; import cn.binarywang.wx.miniapp.api.impl.WxMaServiceImpl; import cn.binarywang.wx.miniapp.bean.WxMaKefuMessage; import cn.binarywang.wx.miniapp.bean.WxMaTemplateData; import cn.binarywang.wx.miniapp.bean.WxMaTemplateMessage; import cn.binarywang.wx.miniapp.config.impl.WxMaDefaultConfigImpl; import cn.binarywang.wx.miniapp.message.WxMaMessageHandler; import cn.binarywang.wx.miniapp.message.WxMaMessageRouter; import com.google.common.collect.Lists; import com.google.common.collect.Maps; import me.chanjar.weixin.common.bean.result.WxMediaUploadResult; import me.chanjar.weixin.common.error.WxErrorException;  import java.io.File; import java.util.Map;  /**  * @author Binary Wang  */  public class WxMaConfiguration {       private static Map routers = Maps.newHashMap();     private static Map maServices = Maps.newHashMap();        public static WxMaService getMaService(String appid, String secret) {         WxMaDefaultConfigImpl config = new WxMaDefaultConfigImpl();         config.setAppid(appid);         config.setSecret(secret);         config.setToken(＂＂);         config.setAesKey(＂＂);         config.setMsgDataFormat(＂JSON＂);          WxMaService service = new WxMaServiceImpl();         service.setWxMaConfig(config);          return service;     }      public static WxMaMessageRouter getRouter(String appid) {         return routers.get(appid);     }       private WxMaMessageRouter newRouter(WxMaService service) {         final WxMaMessageRouter router = new WxMaMessageRouter(service);         router             .rule().handler(logHandler).next()             .rule().async(false).content(＂模板＂).handler(templateMsgHandler).end()             .rule().async(false).content(＂文本＂).handler(textHandler).end()             .rule().async(false).content(＂图片＂).handler(picHandler).end()             .rule().async(false).content(＂二维码＂).handler(qrcodeHandler).end();         return router;     }      private final WxMaMessageHandler templateMsgHandler = (wxMessage, context, service, sessionManager) -> {         service.getMsgService().sendTemplateMsg(WxMaTemplateMessage.builder()             .templateId(＂此处更换为自己的模板id＂)             .formId(＂自己替换可用的formid＂)             .data(Lists.newArrayList(                 new WxMaTemplateData(＂keyword1＂, ＂339208499＂, ＂#173177＂)))             .toUser(wxMessage.getFromUser())             .build());         return null;     };      private final WxMaMessageHandler logHandler = (wxMessage, context, service, sessionManager) -> {         System.out.println(＂收到消息：＂ + wxMessage.toString());         service.getMsgService().sendKefuMsg(WxMaKefuMessage.newTextBuilder().content(＂收到信息为：＂ + wxMessage.toJson())             .toUser(wxMessage.getFromUser()).build());         return null;     };      private final WxMaMessageHandler textHandler = (wxMessage, context, service, sessionManager) -> {         service.getMsgService().sendKefuMsg(WxMaKefuMessage.newTextBuilder().content(＂回复文本消息＂)             .toUser(wxMessage.getFromUser()).build());         return null;     };      private final WxMaMessageHandler picHandler = (wxMessage, context, service, sessionManager) -> {         try {             WxMediaUploadResult uploadResult = service.getMediaService()                 .uploadMedia(＂image＂, ＂png＂,                     ClassLoader.getSystemResourceAsStream(＂tmp.png＂));             service.getMsgService().sendKefuMsg(                 WxMaKefuMessage                     .newImageBuilder()                     .mediaId(uploadResult.getMediaId())                     .toUser(wxMessage.getFromUser())                     .build());         } catch (WxErrorException e) {             e.printStackTrace();         }          return null;     };      private final WxMaMessageHandler qrcodeHandler = (wxMessage, context, service, sessionManager) -> {         try {             final File file = service.getQrcodeService().createQrcode(＂123＂, 430);             WxMediaUploadResult uploadResult = service.getMediaService().uploadMedia(＂image＂, file);             service.getMsgService().sendKefuMsg(                 WxMaKefuMessage                     .newImageBuilder()                     .mediaId(uploadResult.getMediaId())                     .toUser(wxMessage.getFromUser())                     .build());         } catch (WxErrorException e) {             e.printStackTrace();         }          return null;     };  }
　　后台代码(xcxAppId和xcxSecret需要自己填)： @ApiOperation(value = ＂小程序登录,只获取openid＂)     @PostMapping(＂loginByWeixin＂)     public ResultVo loginByWeixin(String code) throws Exception {         ResultVo result = new ResultVo<>();         WeixinLoginVo weixinLoginVo = new WeixinLoginVo();         //获取openid         //通过自定义工具类组合出小程序需要的登录凭证 code         String xcxAppId = ＂xxxx＂;         String xcxSecret = ＂xxxx＂;         //其他商城的小程序          final WxMaService wxService = WxMaConfiguration.getMaService(xcxAppId, xcxSecret);         WxMaJscode2SessionResult session = wxService.getUserService().getSessionInfo(code);         String  openid = session.getOpenid();         QueryWrapper queryWrapper = new QueryWrapper<>();         queryWrapper.lambda().eq(UserEntity::getOpenid,openid);         UserEntity user=userService.getOne(queryWrapper);         if(null==user)         {             user=new UserEntity();              user.setOpenid(openid);            userService.save(user);         }         String tokenId = tokenService.getTokenId(user.getId(), ＂＂);         weixinLoginVo.setOpenid(openid);         weixinLoginVo.setOpenid(tokenId);         result.setData(weixinLoginVo);         return result;     }
　　WeixinLoginVo：package com.haiyeren.entity.vo;  import io.swagger.annotations.ApiModel; import io.swagger.annotations.ApiModelProperty; import lombok.Data;  @ApiModel(＂小程序登录返回＂) @Data public class WeixinLoginVo {     @ApiModelProperty(value=＂登录令牌＂)     private String token;     @ApiModelProperty(value=＂openid＂)     private String openid; }
　　小程序端登录代码：  login: function () {     var that = this;     wx.login({       success: res => {         // 发送 res.code 到后台换取 openId, sessionKey, unionId         console.log(＂res.code:＂, res.code)         if (res.code) {           //发起网络请求            wx.request({             url:  ＂＂,             data: {               code: res.code                     },             header: {               ＂content-type＂: ＂application/x-www-form-urlencoded＂             },             method: ＂POST＂, // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT             success: function (res) {               console.log(＂登陆回调＂, res);               if (res.data.status == 1) {                                that.globalData.token = res.data.data.token;                               that.globalData.openid = res.data.data.openid;                                           }               if (res.data.status != 1) {                 // 登录错误              //   wx.hideLoading();                 wx.showModal({                   title: ＂提示＂,                   content: ＂无法登录，请重试＂,                   showCancel: false                 })                 return;               }              },             fail: function (failRes) {               //用户未授权会调用失败，调用失败就进这里             //  wx.hideLoading();             }           })         } else {           console.log(＂获取用户登录态失败！＂ + res.errMsg)         }       }       })   }