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package cn.binarywang.wx.miniapp.executor;

import cn.binarywang.wx.miniapp.bean.AbstractWxMaQrcodeWrapper;
import me.chanjar.weixin.common.enums.WxType;
import me.chanjar.weixin.common.error.WxError;
import me.chanjar.weixin.common.error.WxErrorException;
import me.chanjar.weixin.common.util.http.RequestHttp;
import me.chanjar.weixin.common.util.http.apache.InputStreamResponseHandler;
import me.chanjar.weixin.common.util.http.apache.Utf8ResponseHandler;
import org.apache.commons.io.IOUtils;
import org.apache.http.Header;
import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;

import java.io.IOException;
import java.io.InputStream;

/**
 * @author wenqiang
 * @since 2020/12/25
 */
public class ApacheQrcodeBytesRequestExecutor extends QrcodeBytesRequestExecutor {


  public ApacheQrcodeBytesRequestExecutor(RequestHttp requestHttp) {
    super(requestHttp);
  }

  /**
   * 执行http请求.
   *
   * @param uri           uri
   * @param qrcodeWrapper 数据
   * @param wxType        微信模块类型
   * @return 响应结果
   * @throws WxErrorException 自定义异常
   * @throws IOException      io异常
   */
  @Override
  public byte[] execute(String uri, AbstractWxMaQrcodeWrapper qrcodeWrapper, WxType wxType) throws WxErrorException, IOException {
    HttpPost httpPost = new HttpPost(uri);
    if (requestHttp.getRequestHttpProxy() != null) {
      httpPost.setConfig(
        RequestConfig.custom().setProxy(requestHttp.getRequestHttpProxy()).build()
      );
    }

    httpPost.setEntity(new StringEntity(qrcodeWrapper.toJson()));

    try (final CloseableHttpResponse response = requestHttp.getRequestHttpClient().execute(httpPost);
         final InputStream inputStream = InputStreamResponseHandler.INSTANCE.handleResponse(response)) {
      Header[] contentTypeHeader = response.getHeaders("Content-Type");
      if (contentTypeHeader != null && contentTypeHeader.length > 0
        && ContentType.APPLICATION_JSON.getMimeType()
        .equals(ContentType.parse(contentTypeHeader[0].getValue()).getMimeType())) {
        String responseContent = Utf8ResponseHandler.INSTANCE.handleResponse(response);
        throw new WxErrorException(WxError.fromJson(responseContent, wxType));
      }

      return IOUtils.toByteArray(inputStream);
    } finally {
      httpPost.releaseConnection();
    }
  }
}




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