一、pom.xml 依赖
<dependency> <groupId>com.github.binarywang</groupId> <artifactId>weixin-java-mp</artifactId> <version>2.7.0</version> </dependency>
二、application.yml配置
wechat: mpAppId: wx6beb2249b6c*****(appID) mpAppSecret: 9138282d930eb7ee7f7a59*******(appsecret)
三、从application.yml中获取配置信息
@Data @Component @ConfigurationProperties(prefix = "wechat") public class WechatAccountConfig { /** * 公众平台id */ private String mpAppId; /** * 公众平台密钥 */ private String mpAppSecret;
}
四、配置微信参数信息
import me.chanjar.weixin.mp.api.WxMpConfigStorage; import me.chanjar.weixin.mp.api.WxMpInMemoryConfigStorage; import me.chanjar.weixin.mp.api.WxMpService; import me.chanjar.weixin.mp.api.impl.WxMpServiceImpl; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.annotation.Bean; import org.springframework.stereotype.Component; @Component public class WechatMpConfig { @Autowired private WechatAccountConfig accountConfig; @Bean public WxMpService wxMpService() { WxMpService wxMpService = new WxMpServiceImpl(); wxMpService.setWxMpConfigStorage(wxMpConfigStorage()); return wxMpService; } @Bean public WxMpConfigStorage wxMpConfigStorage() { WxMpInMemoryConfigStorage wxMpConfigStorage = new WxMpInMemoryConfigStorage(); wxMpConfigStorage.setAppId(accountConfig.getMpAppId()); wxMpConfigStorage.setSecret(accountConfig.getMpAppSecret()); return wxMpConfigStorage; } }
五、微信授权接口
import lombok.extern.slf4j.Slf4j;
import me.chanjar.weixin.common.api.WxConsts;
import me.chanjar.weixin.common.exception.WxErrorException;
import me.chanjar.weixin.mp.api.WxMpService;
import me.chanjar.weixin.mp.bean.result.WxMpOAuth2AccessToken;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import com.liuhq.config.ProjectUrlConfig;
import com.liuhq.enums.ResultEnum;
import com.liuhq.exception.SellException;
import java.net.URLEncoder;
@Controller @RequestMapping("/wechat") @Slf4j public class WechatController { @Autowired private WxMpService wxMpService; @Autowired private ProjectUrlConfig projectUrlConfig; @GetMapping("/authorize") public String authorize(@RequestParam("returnUrl") String returnUrl) { //1. 配置 //2. 调用方法 String url = http://域名 + "/wechat/userInfo"; String redirectUrl = wxMpService.oauth2buildAuthorizationUrl(url, WxConsts.OAUTH2_SCOPE_BASE, URLEncoder.encode(returnUrl)); return "redirect:" + redirectUrl; } @GetMapping("/userInfo") public String userInfo(@RequestParam("code") String code, @RequestParam("state") String returnUrl) { WxMpOAuth2AccessToken wxMpOAuth2AccessToken = new WxMpOAuth2AccessToken(); try { wxMpOAuth2AccessToken = wxMpService.oauth2getAccessToken(code);
WxMpUser wxMpUser = wxMpService.oauth2getUserInfo(wxMpOAuth2AccessToken, null); //微信用户信息 } catch (WxErrorException e) { log.error("【微信网页授权】{}", e); throw new SellException(ResultEnum.WECHAT_MP_ERROR.getCode(), e.getError().getErrorMsg()); } String openId = wxMpOAuth2AccessToken.getOpenId(); //获取openId return "redirect:" + returnUrl + "?openid=" + openId; } }