diff --git a/pay-java-common/src/main/java/com/egzosn/pay/common/http/HttpStringEntity.java b/pay-java-common/src/main/java/com/egzosn/pay/common/http/HttpStringEntity.java
index c6b8055..a3e702d 100644
--- a/pay-java-common/src/main/java/com/egzosn/pay/common/http/HttpStringEntity.java
+++ b/pay-java-common/src/main/java/com/egzosn/pay/common/http/HttpStringEntity.java
@@ -241,6 +241,7 @@ public class HttpStringEntity extends StringEntity {
      * 设置请求头
      *
      * @param header 请求头
+     * @see com.egzosn.pay.common.http.HttpHeader
      */
     public void setHeaders(HttpHeader header) {
         this.headers = header.getHeaders();