企业微信获取小程序二维码java

你可以使用企业微信提供的API来获取小程序二维码。以下是Java代码示例：

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class GetQrcode {
    public static void main(String[] args) {
        String accessToken = "YOUR_ACCESS_TOKEN"; // 替换为实际的access_token
        String path = "https://qyapi.weixin.qq.com/cgi-bin/wxaapp/createwxaqrcode?access_token=" + accessToken;
        String params = "{\"path\":\"pages/index/index\",\"width\":430}";

        try {
            URL url = new URL(path);
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/json");
            conn.setUseCaches(false);
            conn.setInstanceFollowRedirects(true);
            conn.connect();

            // 将参数写入请求体
            byte[] data = params.getBytes();
            conn.getOutputStream().write(data);
            conn.getOutputStream().flush();
            conn.getOutputStream().close();

            // 读取响应
            InputStream is = conn.getInputStream();
            byte[] buffer = new byte[1024];
            int len = 0;
            FileOutputStream fos = new FileOutputStream("qrcode.jpg");
            while ((len = is.read(buffer)) != -1) {
                fos.write(buffer, 0, len);
            }
            fos.close();
            is.close();
            conn.disconnect();

            System.out.println("二维码已保存至本地！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

在代码中替换`YOUR_ACCESS_TOKEN`为实际的access_token，同时指定小程序路径和二维码宽度，即可获取小程序二维码并保存至本地。