修复上传文件时的乱码问题

Author: binarywang

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/util/http/apache/ApacheMaterialUploadRequestExecutor.java

@@ -8,13 +8,15 @@
 import me.chanjar.weixin.mp.bean.material.WxMpMaterial;
 import me.chanjar.weixin.mp.bean.material.WxMpMaterialUploadResult;
 import me.chanjar.weixin.mp.util.http.MaterialUploadRequestExecutor;
+import org.apache.http.Consts;
 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.mime.HttpMultipartMode;
 import org.apache.http.entity.mime.MultipartEntityBuilder;
+import org.apache.http.entity.mime.content.StringBody;
 import org.apache.http.impl.client.CloseableHttpClient;
 
 import java.io.File;
@@ -53,7 +55,8 @@ public WxMpMaterialUploadResult execute(String uri, WxMpMaterial material) throw
       .setMode(HttpMultipartMode.RFC6532);
     Map<String, String> form = material.getForm();
     if (material.getForm() != null) {
-      multipartEntityBuilder.addTextBody("description", WxGsonBuilder.create().toJson(form));
+      multipartEntityBuilder.addPart("description",
+        new StringBody(WxGsonBuilder.create().toJson(form), ContentType.create("text/plain", Consts.UTF_8)));
     }
 
     httpPost.setEntity(multipartEntityBuilder.build());