diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/ecommerce/PartnerTransactionsCloseRequest.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/ecommerce/PartnerTransactionsCloseRequest.java
new file mode 100644
index 000000000..a98d0c69e
--- /dev/null
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/bean/ecommerce/PartnerTransactionsCloseRequest.java
@@ -0,0 +1,61 @@
+package com.github.binarywang.wxpay.bean.ecommerce;
+
+import com.google.gson.annotations.SerializedName;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.io.Serializable;
+
+/**
+ * 关闭普通订单请求
+ * @author: f00lish
+ * @date: 2020/12/09
+ */
+@Data
+@NoArgsConstructor
+public class PartnerTransactionsCloseRequest implements Serializable {
+
+  private static final long serialVersionUID = -7602636370950088329L;
+
+  /**
+   * <pre>
+   * 字段名：服务商户号
+   * 变量名：sp_mchid
+   * 是否必填：是
+   * 类型：string（32）
+   * 描述：
+   *  服务商户号，由微信支付生成并下发
+   * 示例值：1230000109
+   * </pre>
+   */
+  @SerializedName(value = "sp_mchid")
+  private String spMchid;
+
+  /**
+   * <pre>
+   * 字段名：二级商户号
+   * 变量名：sub_mchid
+   * 是否必填：是
+   * 类型：string（32）
+   * 描述：
+   *  二级商户的商户号，有微信支付生成并下发。
+   * 示例值：1900000109
+   * </pre>
+   */
+  @SerializedName(value = "sub_mchid")
+  private String subMchid;
+
+  /**
+   * <pre>
+   * 字段名：商户订单号
+   * 变量名：out_trade_no
+   * 是否必填：是
+   * 类型：string（32）
+   * 描述：
+   *  商户系统内部订单号，只能是数字、大小写字母_-*且在同一个商户号下唯一，详见【商户订单号】。
+   * 特殊规则：最小字符长度为6
+   * 示例值：1217752501201407033233368018
+   * </pre>
+   */
+  private transient String outTradeNo;
+}
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/EcommerceService.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/EcommerceService.java
index 91c58e7ac..cdca94462 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/EcommerceService.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/EcommerceService.java
@@ -166,6 +166,17 @@ public interface EcommerceService {
    */
   PartnerTransactionsResult queryPartnerTransactions(PartnerTransactionsQueryRequest request) throws WxPayException;
 
+  /**
+   * <pre>
+   * 关闭普通订单API
+   * 文档地址: https://pay.weixin.qq.com/wiki/doc/apiv3/wxpay/ecommerce/e_transactions/chapter3_6.shtml
+   * </pre>
+   *
+   * @param request 关闭普通订单请求
+   * @throws WxPayException the wx pay exception
+   */
+  void closePartnerTransactions(PartnerTransactionsCloseRequest request) throws WxPayException;
+
   /**
    * <pre>
    * 服务商账户实时余额
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EcommerceServiceImpl.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EcommerceServiceImpl.java
index 58a02d8ff..4feaaab01 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EcommerceServiceImpl.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/EcommerceServiceImpl.java
@@ -149,6 +149,12 @@ public class EcommerceServiceImpl implements EcommerceService {
     return GSON.fromJson(response, PartnerTransactionsResult.class);
   }
 
+  @Override
+  public void closePartnerTransactions(PartnerTransactionsCloseRequest request) throws WxPayException {
+    String url = String.format("%s/v3/pay/partner/transactions/out-trade-no/%s/close", this.payService.getPayBaseUrl(), request.getOutTradeNo());
+    String response = this.payService.postV3(url, GSON.toJson(request));
+  }
+
   @Override
   public FundBalanceResult spNowBalance(SpAccountTypeEnum accountType) throws WxPayException {
     String url = String.format("%s/v3/merchant/fund/balance/%s", this.payService.getPayBaseUrl(), accountType);
diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/WxPayServiceApacheHttpImpl.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/WxPayServiceApacheHttpImpl.java
index aad6880fe..523c9b247 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/WxPayServiceApacheHttpImpl.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/service/impl/WxPayServiceApacheHttpImpl.java
@@ -100,7 +100,13 @@ public class WxPayServiceApacheHttpImpl extends BaseWxPayServiceImpl {
     try (CloseableHttpResponse response = httpClient.execute(httpPost)) {
       //v3已经改为通过状态码判断200 204 成功
       int statusCode = response.getStatusLine().getStatusCode();
-      String responseString = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
+      //post方法有可能会没有返回值的情况
+      String responseString;
+      if (response.getEntity() == null) {
+        responseString = null;
+      }else {
+        responseString = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
+      }
       if (HttpStatus.SC_OK == statusCode || HttpStatus.SC_NO_CONTENT == statusCode) {
         this.log.info("\n【请求地址】：{}\n【请求数据】：{}\n【响应数据】：{}", url, requestStr, responseString);
         return responseString;
@@ -166,7 +172,13 @@ public class WxPayServiceApacheHttpImpl extends BaseWxPayServiceImpl {
     try (CloseableHttpResponse response = httpClient.execute(httpPost)) {
       //v3已经改为通过状态码判断200 204 成功
       int statusCode = response.getStatusLine().getStatusCode();
-      String responseString = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
+      //post方法有可能会没有返回值的情况
+      String responseString;
+      if (response.getEntity() == null) {
+        responseString = null;
+      }else {
+        responseString = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
+      }
       if (HttpStatus.SC_OK == statusCode || HttpStatus.SC_NO_CONTENT == statusCode) {
         this.log.info("\n【请求地址】：{}\n【响应数据】：{}", url, responseString);
         return responseString;