diff --git a/pom.xml b/pom.xml
index 099c654..8b91cff 100644
--- a/pom.xml
+++ b/pom.xml
@@ -176,7 +176,7 @@
         <repository>
             <id>fanruan</id>
             <name>fanruan</name>
-            <url>http://mvn.finedevelop.com/repository/maven-public/</url>
+            <url>https://mvn.fanruan.com/repository/maven-public/</url>
             <snapshots>
                 <enabled>true</enabled>
                 <updatePolicy>always</updatePolicy>
@@ -188,7 +188,7 @@
         <pluginRepository>
             <id>fanruan</id>
             <name>fanruan</name>
-            <url>http://mvn.finedevelop.com/repository/maven-public/</url>
+            <url>https://mvn.fanruan.com/repository/maven-public/</url>
             <snapshots>
                 <enabled>true</enabled>
                 <updatePolicy>always</updatePolicy>
diff --git a/src/main/java/com/fanruan/api/net/http/HttpKit.java b/src/main/java/com/fanruan/api/net/http/HttpKit.java
index 6162745..57ae033 100644
--- a/src/main/java/com/fanruan/api/net/http/HttpKit.java
+++ b/src/main/java/com/fanruan/api/net/http/HttpKit.java
@@ -1,20 +1,12 @@
 package com.fanruan.api.net.http;
 
-import com.fanruan.api.macro.EncodeConstants;
 import com.fanruan.api.log.LogKit;
-import com.fanruan.api.net.http.rs.BaseHttpResponseHandle;
+import com.fanruan.api.macro.EncodeConstants;
 import com.fanruan.api.net.http.rs.HttpRequest;
-import com.fanruan.api.net.http.rs.HttpRequestType;
-import com.fanruan.api.net.http.rs.HttpResponseType;
-import com.fanruan.api.net.http.rs.StreamResponseHandle;
-import com.fanruan.api.net.http.rs.TextResponseHandle;
-import com.fanruan.api.net.http.rs.UploadResponseHandle;
+import com.fanruan.api.net.http.rs.*;
+import com.fr.json.JSONObject;
 import com.fr.third.guava.collect.Maps;
-import com.fr.third.org.apache.http.HttpEntity;
-import com.fr.third.org.apache.http.HttpEntityEnclosingRequest;
-import com.fr.third.org.apache.http.HttpHost;
-import com.fr.third.org.apache.http.NameValuePair;
-import com.fr.third.org.apache.http.NoHttpResponseException;
+import com.fr.third.org.apache.http.*;
 import com.fr.third.org.apache.http.client.HttpRequestRetryHandler;
 import com.fr.third.org.apache.http.client.config.RequestConfig;
 import com.fr.third.org.apache.http.client.entity.UrlEncodedFormEntity;
@@ -31,6 +23,7 @@ import com.fr.third.org.apache.http.conn.socket.LayeredConnectionSocketFactory;
 import com.fr.third.org.apache.http.conn.socket.PlainConnectionSocketFactory;
 import com.fr.third.org.apache.http.conn.ssl.SSLConnectionSocketFactory;
 import com.fr.third.org.apache.http.entity.FileEntity;
+import com.fr.third.org.apache.http.entity.StringEntity;
 import com.fr.third.org.apache.http.entity.mime.HttpMultipartMode;
 import com.fr.third.org.apache.http.entity.mime.MultipartEntityBuilder;
 import com.fr.third.org.apache.http.impl.client.CloseableHttpClient;
@@ -45,20 +38,13 @@ import org.jetbrains.annotations.Nullable;
 import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLException;
 import javax.net.ssl.SSLHandshakeException;
-import java.io.ByteArrayInputStream;
-import java.io.File;
-import java.io.IOException;
-import java.io.InterruptedIOException;
-import java.io.UnsupportedEncodingException;
+import java.io.*;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.net.URLEncoder;
 import java.net.UnknownHostException;
 import java.nio.charset.Charset;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 
 import static com.fanruan.api.net.http.rs.HttpRequestType.POST;
 
@@ -205,6 +191,30 @@ public class HttpKit {
         });
     }
 
+    /**
+     * 发起POST JSON请求并获取返回的文本
+     *
+     * @param url    响应请求的的服务器地址
+     * @param params POST请求的参数
+     * @return 服务器返回的文本内容
+     */
+    public static String postJSON(String url, JSONObject params, Map<String, String> headers) throws IOException {
+        StringEntity jsonEntity = new StringEntity(params.toString(), "UTF-8");
+        jsonEntity.setContentEncoding("UTF-8");
+        if (headers != null) {
+            headers.put("Content-Type", "application/json");
+        } else {
+            headers = new HashMap<>();
+            headers.put("Content-Type", "application/json");
+        }
+        return executeAndParse(HttpRequest
+                .custom()
+                .headers(headers)
+                .url(url)
+                .post(jsonEntity)
+                .build());
+    }
+
     /**
      * 发起POST请求并获取返回的文本
      *
@@ -438,6 +448,7 @@ public class HttpKit {
 
     /**
      * 从指定的地址下载文件
+     *
      * @param url 文件下载地址
      * @return 文件的字节流
      * @throws IOException 下载过程中出现错误则抛出此异常
@@ -448,10 +459,11 @@ public class HttpKit {
 
     /**
      * 从指定的地址下载文件
-     * @param url 文件下载地址
-     * @param params 参数对
+     *
+     * @param url              文件下载地址
+     * @param params           参数对
      * @param responseEncoding 响应的文件编码
-     * @param headers 请求头
+     * @param headers          请求头
      * @return 文件的字节流
      * @throws IOException 下载过程中出现错误则抛出此异常
      */