Java编码秘笈：精通获取支付宝个人信息的技巧与实践

public class AlipayAuth {

    // 支付宝开放平台的AppID
    private static final String APP_ID = "your_app_id";
    
    // 支付宝开放平台的私钥
    private static final String PRIVATE_KEY = "your_private_key";
    
    // 支付宝开放平台的回调地址
    private static final String REDIRECT_URI = "your_redirect_uri";

    public static void main(String[] args) {
        try {
            // 创建阿里云实例
            DefaultAlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", APP_ID, PRIVATE_KEY, "json", "UTF-8", "", "RSA2");

            // 构造授权请求
            AlipaySystemOauthTokenRequest tokenRequest = new AlipaySystemOauthTokenRequest();
            tokenRequest.setGrantType("authorization_code");
            tokenRequest.setCode("your_code");
            
            // 执行授权请求
            AlipaySystemOauthTokenResponse tokenResponse = alipayClient.execute(tokenRequest);
            
            // 获取AccessToken
            String accessToken = tokenResponse.getAccessToken();
            
            // 构造用户信息请求
            AlipayUserInfoShareRequest infoRequest = new AlipayUserInfoShareRequest();
            
            // 执行用户信息请求
            AlipayUserInfoShareResponse infoResponse = alipayClient.execute(infoRequest, accessToken);
            
            // 获取用户信息
            String userId = infoResponse.getUserId();
            String username = infoResponse.getNickName();
            String gender = infoResponse.getGender();
            String avatar = infoResponse.getAvatar();
            
            // 输出用户信息
            System.out.println("用户ID：" + userId);
            System.out.println("用户名：" + username);
            System.out.println("性别：" + gender);
            System.out.println("头像：" + avatar);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}