帮我写java进行微信登录的授权的代码

好的，以下是Java进行微信登录授权的代码：

// 引入相关的包
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;

// 定义微信登录授权的类
public class WeChatLoginAuth {

    // 定义获取access_token的方法
    public static String getAccessToken(String appId, String appSecret, String code) throws IOException {
        // 构造请求URL
        String url = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=" + appId + "&secret=" + appSecret + "&code=" + code + "&grant_type=authorization_code";
        // 发送HTTP请求
        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
        connection.setRequestMethod("GET");
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setUseCaches(false);
        connection.connect();
        // 读取响应内容
        InputStream inputStream = connection.getInputStream();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
        StringBuilder stringBuilder = new StringBuilder();
        String line = null;
        while ((line = bufferedReader.readLine()) != null) {
            stringBuilder.append(line);
        }
        bufferedReader.close();
        inputStream.close();
        connection.disconnect();
        // 解析响应内容
        Map<String, Object> resultMap = new HashMap<String, Object>();
        String result = stringBuilder.toString();
        String[] results = result.split("&");
        for (String str : results) {
            String[] strs = str.split("=");
            resultMap.put(strs[], strs[1]);
        }
        return resultMap.get("access_token").toString();
    }

    // 定义获取用户信息的方法
    public static Map<String, Object> getUserInfo(String accessToken, String openId) throws IOException {
        // 构造请求URL
        String url = "https://api.weixin.qq.com/sns/userinfo?access_token=" + accessToken + "&openid=" + openId + "&lang=zh_CN";
        // 发送HTTP请求
        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
        connection.setRequestMethod("GET");
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.setUseCaches(false);
        connection.connect();
        // 读取响应内容
        InputStream inputStream = connection.getInputStream();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
        StringBuilder stringBuilder = new StringBuilder();
        String line = null;
        while ((line = bufferedReader.readLine()) != null) {
            stringBuilder.append(line);
        }
        bufferedReader.close();
        inputStream.close();
        connection.disconnect();
        // 解析响应内容
        Map<String, Object> resultMap = new HashMap<String, Object>();
        String result = stringBuilder.toString();
        String[] results = result.split(",");
        for (String str : results) {
            String[] strs = str.split(":");
            resultMap.put(strs[].replace("\"", ""), strs[1].replace("\"", ""));
        }
        return resultMap;
    }

    // 定义主方法
    public static void main(String[] args) throws IOException {
        // 定义appId、appSecret和code
        String appId = "your_appId";
        String appSecret = "your_appSecret";
        String code = "your_code";
        // 获取access_token和用户信息
        String accessToken = getAccessToken(appId, appSecret, code);
        Map<String, Object> userInfo = getUserInfo(accessToken, "your_openId");
        // 输出用户信息
        System.out.println(userInfo);
    }
}