diff --git a/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/utils/HttpClientManager.java b/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/utils/HttpClientManager.java
index d69f319d7b..6064c69986 100644
--- a/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/utils/HttpClientManager.java
+++ b/epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/utils/HttpClientManager.java
@@ -43,7 +43,6 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URLEncoder;
-import java.nio.charset.StandardCharsets;
 import java.security.KeyManagementException;
 import java.security.NoSuchAlgorithmException;
 import java.security.cert.CertificateException;
@@ -60,8 +59,12 @@ import java.util.Set;
  */
 @Slf4j
 public class HttpClientManager {
-	private static int connectionTimeout = 3000;// 连接超时时间,毫秒
+	private static int connectionTimeout = 4000;// 连接超时时间,毫秒
 	private static int soTimeout = 10000;// 读取数据超时时间，毫秒
+	private static String HEADER_CONTENT_TYPE = "Content-Type";
+	private static String HEADER_APPLICATION_JSON = "application/json;charset=utf-8";
+	private static String UTF8 = "utf-8";
+	private static String HEADER_APPLICATION_FORM_URL_ENCODED = "application/x-www-form-urlencoded;charset=utf-8";
 	/**
 	 * HttpClient对象
 	 */
@@ -116,13 +119,14 @@ public class HttpClientManager {
 		try {
 			HttpPost httppost = new HttpPost(url);
 			httppost.setConfig(requestConfig);
-			httppost.addHeader("Content-Type", "application/x-www-form-urlencoded charset=utf-8");
+
+			httppost.addHeader(HEADER_CONTENT_TYPE, HEADER_APPLICATION_FORM_URL_ENCODED);
 
 			List<NameValuePair> list = new ArrayList<NameValuePair>();
 			for (String key : paramsMap.keySet()) {
 				list.add(new BasicNameValuePair(key, String.valueOf(paramsMap.get(key))));
 			}
-			UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(list, "utf-8");
+			UrlEncodedFormEntity urlEncodedFormEntity = new UrlEncodedFormEntity(list, UTF8);
 			httppost.setEntity(urlEncodedFormEntity);
 
 			return execute(httppost, false);
@@ -146,9 +150,9 @@ public class HttpClientManager {
 		try {
 			HttpPost httppost = new HttpPost(url);
 			httppost.setConfig(requestConfig);
-			httppost.addHeader("Content-Type", "application/json; charset=utf-8");
+			httppost.addHeader(HEADER_CONTENT_TYPE, HEADER_APPLICATION_JSON);
 			if (StringUtils.isNotEmpty(jsonStrParam)) {
-				StringEntity se = new StringEntity(jsonStrParam, "utf-8");
+				StringEntity se = new StringEntity(jsonStrParam, UTF8);
 				httppost.setEntity(se);
 			}
 			return execute(httppost, false);
@@ -164,14 +168,14 @@ public class HttpClientManager {
 		try {
 			HttpPost httppost = new HttpPost(url);
 			httppost.setConfig(requestConfig);
-			httppost.addHeader("Content-Type", "application/json; charset=utf-8");
+			httppost.addHeader(HEADER_CONTENT_TYPE, HEADER_APPLICATION_JSON);
 			if (null != headerMap){
 				headerMap.forEach((k,v) -> {
 					httppost.addHeader(k,v);
 				});
 			}
 			if (StringUtils.isNotEmpty(jsonStrParam)) {
-				StringEntity se = new StringEntity(jsonStrParam, "utf-8");
+				StringEntity se = new StringEntity(jsonStrParam, UTF8);
 				httppost.setEntity(se);
 			}
 			return execute(httppost, false);
@@ -221,9 +225,9 @@ public class HttpClientManager {
 		try {
 			HttpPost httppost = new HttpPost(url);
 			httppost.setConfig(requestConfig);
-			httppost.addHeader("Content-Type", "application/json");
+			httppost.addHeader(HEADER_CONTENT_TYPE, HEADER_APPLICATION_JSON);
 			if (StringUtils.isNotEmpty(jsonStrParam)) {
-				StringEntity se = new StringEntity(jsonStrParam, "utf-8");
+				StringEntity se = new StringEntity(jsonStrParam, UTF8);
 				httppost.setEntity(se);
 			}
 			return execute(httppost, true);
@@ -249,9 +253,9 @@ public class HttpClientManager {
 		try {
 			String stringToSign = timestamp + "\n" + secret;
 			Mac mac = Mac.getInstance("HmacSHA256");
-			mac.init(new SecretKeySpec(secret.getBytes("UTF-8"), "HmacSHA256"));
-			byte[] signData = mac.doFinal(stringToSign.getBytes("UTF-8"));
-			String sign = URLEncoder.encode(new String(Base64.encodeBase64(signData)), "UTF-8");
+			mac.init(new SecretKeySpec(secret.getBytes(UTF8), "HmacSHA256"));
+			byte[] signData = mac.doFinal(stringToSign.getBytes(UTF8));
+			String sign = URLEncoder.encode(new String(Base64.encodeBase64(signData)), UTF8);
 			DingTalkTextMsg msg = new DingTalkTextMsg();
 			msg.setContent(content);
 			url = url.concat("&timestamp=" + timestamp + "&sign=" + sign);
@@ -275,9 +279,9 @@ public class HttpClientManager {
 		try {
 			String stringToSign = timestamp + "\n" + secret;
 			Mac mac = Mac.getInstance("HmacSHA256");
-			mac.init(new SecretKeySpec(secret.getBytes("UTF-8"), "HmacSHA256"));
-			byte[] signData = mac.doFinal(stringToSign.getBytes("UTF-8"));
-			String sign = URLEncoder.encode(new String(Base64.encodeBase64(signData)), "UTF-8");
+			mac.init(new SecretKeySpec(secret.getBytes(UTF8), "HmacSHA256"));
+			byte[] signData = mac.doFinal(stringToSign.getBytes(UTF8));
+			String sign = URLEncoder.encode(new String(Base64.encodeBase64(signData)), UTF8);
 			log.info("sign为："+sign);
 			url = url.concat("&timestamp=" + timestamp + "&sign=" + sign);
 			log.info("发送url："+url);
@@ -383,9 +387,9 @@ public class HttpClientManager {
 		try {
 			HttpPost httppost = new HttpPost(url);
 			httppost.setConfig(requestConfig);
-			httppost.addHeader("Content-Type", "application/json");
+			httppost.addHeader(HEADER_CONTENT_TYPE, HEADER_APPLICATION_JSON);
 			if (StringUtils.isNotEmpty(json)) {
-				StringEntity se = new StringEntity(json, "utf-8");
+				StringEntity se = new StringEntity(json, UTF8);
 				httppost.setEntity(se);
 			}
 			return executeToByte(httppost);