diff --git a/src/main/java/com/taover/util/UtilHttpByOkHttp.java b/src/main/java/com/taover/util/UtilHttpByOkHttp.java
index a345423..0a0ab34 100644
--- a/src/main/java/com/taover/util/UtilHttpByOkHttp.java
+++ b/src/main/java/com/taover/util/UtilHttpByOkHttp.java
@@ -30,6 +30,10 @@ import okhttp3.Response;
 import okhttp3.ResponseBody;
 
 public class UtilHttpByOkHttp {
+	//防止线程并发，使用threadlocal管理client
+	private static ThreadLocal<OkHttpClient> localHttpClientForHttp = new ThreadLocal<OkHttpClient>();
+	private static ThreadLocal<OkHttpClient> localHttpClientForHttps = new ThreadLocal<OkHttpClient>();
+	
 	public static final String METHOD_GET = "GET";
 	public static final String METHOD_POST = "POST";
 	public static final String METHOD_DELETE = "DELETE";
@@ -125,16 +129,36 @@ public class UtilHttpByOkHttp {
 	
 
 	public static OkHttpClient getHttpClient(String url, int timeoutInSecond){
-		if(url.trim().toLowerCase().startsWith("https")){
-			return buildOkHttpClientForHttps(timeoutInSecond);
+		OkHttpClient client = null;
+		boolean isHttps = url.trim().toLowerCase().startsWith("https");
+		if(isHttps){
+			client = localHttpClientForHttps.get();
+		}else{
+			client = localHttpClientForHttp.get();
+		}	
+		
+		if(client != null){
+			return client;
+		}
+		
+		if(isHttps){
+			client = buildOkHttpClientForHttps(timeoutInSecond);
 		}else{
 			OkHttpClient.Builder builder = new OkHttpClient.Builder();
 			builder.connectTimeout(timeoutInSecond, TimeUnit.SECONDS)
 	            .readTimeout(timeoutInSecond, TimeUnit.SECONDS)
 	            .writeTimeout(timeoutInSecond,TimeUnit.SECONDS)
 	            .retryOnConnectionFailure(true);
-			return builder.build();
+			client = builder.build();
+		}
+		
+		if(isHttps){
+			localHttpClientForHttps.set(client);
+		}else{
+			localHttpClientForHttp.set(client);
 		}
+		
+		return client;
 	}
 	
 	/**
@@ -216,30 +240,11 @@ public class UtilHttpByOkHttp {
 	 * @return 只发post请求
 	 * @throws Exception
 	 */
-	public static ResponseBody sendPostFile(String url, String filePath, String fileName,String fileKey,Map<String, String> header) throws Exception {
-	    OkHttpClient client = new OkHttpClient();
-	    RequestBody requestBody = new MultipartBody.Builder()
-	            .setType(MultipartBody.FORM)
-	            .addFormDataPart(fileKey, fileName,
-	                    RequestBody.create(MediaType.parse("multipart/form-data"), new File(filePath)))
-	            .build();
-	   
-	    Request request = new Request.Builder()
-	            .headers(Headers.of(header))
-	            .url(url)
-	            .post(requestBody)
-	            .build();
-	
-	    Response response = client.newCall(request).execute();
-	    if (!response.isSuccessful()){
-	    	throw new IOException("Unexpected code " + response);
-	    }
-	    return response.body();
-	}
-	
-	
+	public static ResponseBody sendPostFile(String url, String filePath, String fileName, String fileKey, Map<String, String> header) throws Exception {
+		return sendPostFile(url, new File(filePath), fileKey, header);
+	}	
 	
-	public static ResponseBody sendPostFile(String url, File file,String fileKey,Map<String, String> header) throws Exception {
+	public static ResponseBody sendPostFile(String url, File file, String fileKey, Map<String, String> header) throws Exception {
 	    OkHttpClient client = new OkHttpClient();
 	    RequestBody requestBody = new MultipartBody.Builder()
 	            .setType(MultipartBody.FORM)
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