fix potential resource leak

Author: binarywang

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

@@ -1,10 +1,12 @@
 package me.chanjar.weixin.mp.util.http;
 
-import me.chanjar.weixin.common.bean.result.WxError;
-import me.chanjar.weixin.common.exception.WxErrorException;
-import me.chanjar.weixin.common.util.http.InputStreamResponseHandler;
-import me.chanjar.weixin.common.util.http.RequestExecutor;
-import me.chanjar.weixin.common.util.json.WxGsonBuilder;
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.Map;
+
 import org.apache.commons.io.IOUtils;
 import org.apache.http.HttpHost;
 import org.apache.http.client.config.RequestConfig;
@@ -13,12 +15,11 @@
 import org.apache.http.entity.StringEntity;
 import org.apache.http.impl.client.CloseableHttpClient;
 
-import java.io.ByteArrayInputStream;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.HashMap;
-import java.util.Map;
+import me.chanjar.weixin.common.bean.result.WxError;
+import me.chanjar.weixin.common.exception.WxErrorException;
+import me.chanjar.weixin.common.util.http.InputStreamResponseHandler;
+import me.chanjar.weixin.common.util.http.RequestExecutor;
+import me.chanjar.weixin.common.util.json.WxGsonBuilder;
 
 public class MaterialVoiceAndImageDownloadRequestExecutor implements RequestExecutor<InputStream, String> {
 
@@ -44,9 +45,9 @@ public InputStream execute(CloseableHttpClient httpclient, HttpHost httpProxy, S
     Map<String, String> params = new HashMap<>();
     params.put("media_id", materialId);
     httpPost.setEntity(new StringEntity(WxGsonBuilder.create().toJson(params)));
-    try(CloseableHttpResponse response = httpclient.execute(httpPost)){
+    try (CloseableHttpResponse response = httpclient.execute(httpPost);
+        InputStream inputStream = InputStreamResponseHandler.INSTANCE.handleResponse(response);){
       // 下载媒体文件出错
-      InputStream inputStream = InputStreamResponseHandler.INSTANCE.handleResponse(response);
       byte[] responseContent = IOUtils.toByteArray(inputStream);
       String responseContentString = new String(responseContent, "UTF-8");
       if (responseContentString.length() < 100) {