1.pom.xml
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.6.RELEASE</version> <relativePath/> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>wxlogin-web</artifactId> <description>二维码登录功能demo</description> <packaging>war</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <!-- 日志 --> <slf4j.version>1.7.25</slf4j.version> <log4j2.version>2.7</log4j2.version> <!-- 异步日志 --> <disruptor.version>3.2.0</disruptor.version> <!--fastjson工具类 --> <fastjson.version>1.2.45</fastjson.version> </properties> <dependencies> <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.68</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> <exclusions> <exclusion> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-log4j2</artifactId> </dependency> <!-- Log4j2 异步支持 --> <dependency> <groupId>com.lmax</groupId> <artifactId>disruptor</artifactId> <version>${disruptor.version}</version> </dependency> <!-- Apache Commons Logging 1.x接口的日志输出转向log4j2输出 --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-jcl</artifactId> </dependency> <!-- 集成测试 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> </dependencies> </project>
2.前端代码login.html
<!DOCTYPE html> <html lang="zh-cn"> <head> <meta charset="UTF-8"/> <title>登录</title> </head> <body> <!--登录框--> <div > <form class="login-form"> <!--二维码登录--> <div id="weixin"></div> </form> </div>
<!--微信官方提供的生成二维码的js-->
<script src="http://res.wx.qq.com/connect/zh_CN/htmledition/js/wxLogin.js"></script>
</body>
<script>
var obj = new WxLogin({
self_redirect:true,
id:"weixin",
appid: "wx7287a60bb700fd21", #微信开放平台中申请的appid
scope: "snsapi_login", #固定参数，可以参照微信开放平台中的文档
redirect_uri: "http://www.txjava.cn/login" #注意：后台在host文件中添加：“127.0.0.1 www.txjava.cn”，后台springboot项目的端口号为80
});
</script>
</html>
3.LoginController.java
@Controller @RequestMapping("/login") @Slf4j public class LoginController { @Autowired private RestTemplate restTemplate; @GetMapping public void login(HttpServletRequest request, HttpServletResponse response) { //获取到code值 String code = request.getParameter("code"); //判断 if (code == null) { throw new RuntimeException("用户禁止授权"); } //获取到了code值，回调没有问题 //定义地址 String token_url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=wx7287a60bb700fd21&secret=1ef8755f92bebae8ad7bab432ba29cbf&code=" + code + "&grant_type=authorization_code"; //发送请求 String json = restTemplate.getForObject(token_url, String.class); WxToken token = parseObject(json, WxToken.class); //获取到接口调用凭证 //获取个人信息 String user_url = "https://api.weixin.qq.com/sns/userinfo?access_token="+token.getAccess_token()+"&openid="+token.getOpenid(); String jsonStr1 = restTemplate.getForObject(user_url, String.class); JSONObject jsonStr = (JSONObject) JSON.parse(jsonStr1);
//用户名 String nickname = (String) jsonStr.get("nickname");
//用户头像地址 String headimgurl = (String) jsonStr.get("headimgurl"); request.setAttribute("nickname",nickname); request.setAttribute("headimgurl",headimgurl); log.info("微信返回的用户对象:jsonStr1:{}",jsonStr); try { request.getRequestDispatcher("/main.html").forward(request, response); } catch (Exception e) { e.printStackTrace(); throw new RuntimeException("微信扫描登陆异常"); } } }
4.WxToken.java
public class WxToken implements Serializable { private String access_token; private String expires_in; private String refresh_token; private String openid; private String scope; private String unionid; public String getAccess_token() { return access_token; } public void setAccess_token(String access_token) { this.access_token = access_token; } public String getExpires_in() { return expires_in; } public void setExpires_in(String expires_in) { this.expires_in = expires_in; } 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; } public String getUnionid() { return unionid; } public void setUnionid(String unionid) { this.unionid = unionid; } }
5.application.properties
spring.application.name=wxlogin
server.port=80