:new: #1868 【微信支付】增加通用上传图片接口，支持传入流和文件名参数

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/MerchantMediaService.java

@@ -5,6 +5,7 @@ import com.github.binarywang.wxpay.exception.WxPayException;
 
 import java.io.File;
 import java.io.IOException;
+import java.io.InputStream;
 
 /**
  * <pre>
@@ -27,5 +28,19 @@ public interface MerchantMediaService {
    */
   ImageUploadResult imageUploadV3(File imageFile) throws WxPayException, IOException;
 
+  /**
+   * <pre>
+   * 通用接口-图片上传API
+   * 文档详见: https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/tool/chapter3_1.shtml
+   * 接口链接：https://api.mch.weixin.qq.com/v3/merchant/media/upload
+   * </pre>
+   *
+   * @param inputStream 需要上传的图片文件流
+   * @param fileName 需要上传的图片文件名
+   * @return ImageUploadResult 微信返回的媒体文件标识Id。示例值：6uqyGjGrCf2GtyXP8bxrbuH9-aAoTjH-rKeSl3Lf4_So6kdkQu4w8BYVP3bzLtvR38lxt4PjtCDXsQpzqge_hQEovHzOhsLleGFQVRF-U_0
+   * @throws WxPayException the wx pay exception
+   */
+  ImageUploadResult imageUploadV3(InputStream inputStream, String fileName) throws WxPayException, IOException;
+
 
 }

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/MerchantMediaServiceImpl.java

@@ -9,10 +9,7 @@ import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.codec.digest.DigestUtils;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
+import java.io.*;
 import java.net.URI;
 
 /**
@@ -41,4 +38,24 @@ public class MerchantMediaServiceImpl implements MerchantMediaService {
     }
   }
 
+  @Override
+  public ImageUploadResult imageUploadV3(InputStream inputStream, String fileName) throws WxPayException, IOException {
+    String url = String.format("%s/v3/merchant/media/upload", this.payService.getPayBaseUrl());
+    try(ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
+      byte[] buffer = new byte[2048];
+      int len;
+      while ((len = inputStream.read(buffer)) > -1) {
+        bos.write(buffer, 0, len);
+      }
+      bos.flush();
+      byte[] data = bos.toByteArray();
+      String sha256 = DigestUtils.sha256Hex(data);
+      WechatPayUploadHttpPost request = new WechatPayUploadHttpPost.Builder(URI.create(url))
+        .withImage(fileName, sha256, new ByteArrayInputStream(data))
+        .build();
+      String result = this.payService.postV3(url, request);
+      return ImageUploadResult.fromJson(result);
+    }
+  }
+
 }