diff --git a/escheduler-api/src/main/resources/application.properties b/escheduler-api/src/main/resources/application.properties
index bf003bfdda..2709f419ef 100644
--- a/escheduler-api/src/main/resources/application.properties
+++ b/escheduler-api/src/main/resources/application.properties
@@ -2,15 +2,13 @@
 server.port=12345
 
 # session config
-server.session.timeout=7200
+server.servlet.session.timeout=7200
 
-
-server.context-path=/escheduler/
+server.servlet.context-path=/escheduler/
 
 # file size limit for upload
-spring.http.multipart.max-file-size=1024MB
-spring.http.multipart.max-request-size=1024MB
+spring.servlet.multipart.max-file-size=1024MB
+spring.servlet.multipart.max-request-size=1024MB
 
 #post content
-server.max-http-post-size=5000000
-
+server.jetty.max-http-post-size=5000000
diff --git a/escheduler-common/src/main/java/cn/escheduler/common/utils/MysqlUtil.java b/escheduler-common/src/main/java/cn/escheduler/common/utils/MysqlUtils.java
similarity index 87%
rename from escheduler-common/src/main/java/cn/escheduler/common/utils/MysqlUtil.java
rename to escheduler-common/src/main/java/cn/escheduler/common/utils/MysqlUtils.java
index d2d1ef203d..3520527c1a 100644
--- a/escheduler-common/src/main/java/cn/escheduler/common/utils/MysqlUtil.java
+++ b/escheduler-common/src/main/java/cn/escheduler/common/utils/MysqlUtils.java
@@ -21,16 +21,16 @@ import org.slf4j.LoggerFactory;
 
 import java.sql.*;
 
-public class MysqlUtil {
+public class MysqlUtils {
 
-	public static final Logger logger = LoggerFactory.getLogger(MysqlUtil.class);
+	public static final Logger logger = LoggerFactory.getLogger(MysqlUtils.class);
 
-	private static MysqlUtil instance;
+	private static MysqlUtils instance;
 
-	MysqlUtil() {
+	MysqlUtils() {
 	}
 
-	public static MysqlUtil getInstance() {
+	public static MysqlUtils getInstance() {
 		if (null == instance) {
 			syncInit();
 		}
@@ -39,7 +39,7 @@ public class MysqlUtil {
 
 	private static synchronized void syncInit() {
 		if (instance == null) {
-			instance = new MysqlUtil();
+			instance = new MysqlUtils();
 		}
 	}
 
@@ -75,8 +75,8 @@ public class MysqlUtil {
 		}
 	}
 
-	public static void realeaseResource(ResultSet rs, PreparedStatement ps, Connection conn) {
-		MysqlUtil.getInstance().release(rs,ps,conn);
+	public static void releaseResource(ResultSet rs, PreparedStatement ps, Connection conn) {
+		MysqlUtils.getInstance().release(rs,ps,conn);
 		if (null != rs) {
 			try {
 				rs.close();
diff --git a/escheduler-dao/src/main/java/cn/escheduler/dao/upgrade/UpgradeDao.java b/escheduler-dao/src/main/java/cn/escheduler/dao/upgrade/UpgradeDao.java
index 96199b0725..6fc8a61417 100644
--- a/escheduler-dao/src/main/java/cn/escheduler/dao/upgrade/UpgradeDao.java
+++ b/escheduler-dao/src/main/java/cn/escheduler/dao/upgrade/UpgradeDao.java
@@ -16,7 +16,7 @@
  */
 package cn.escheduler.dao.upgrade;
 
-import cn.escheduler.common.utils.MysqlUtil;
+import cn.escheduler.common.utils.MysqlUtils;
 import cn.escheduler.common.utils.ScriptRunner;
 import cn.escheduler.dao.AbstractBaseDao;
 import cn.escheduler.dao.datasource.ConnectionFactory;
@@ -98,7 +98,7 @@ public class UpgradeDao extends AbstractBaseDao {
             logger.error(e.getMessage(),e);
             throw new RuntimeException(e.getMessage(),e);
         } finally {
-            MysqlUtil.realeaseResource(null, null, conn);
+            MysqlUtils.releaseResource(null, null, conn);
 
         }
 
@@ -126,7 +126,7 @@ public class UpgradeDao extends AbstractBaseDao {
             logger.error(e.getMessage(),e);
             throw new RuntimeException(e.getMessage(),e);
         } finally {
-            MysqlUtil.realeaseResource(null, null, conn);
+            MysqlUtils.releaseResource(null, null, conn);
 
         }
 
@@ -152,7 +152,7 @@ public class UpgradeDao extends AbstractBaseDao {
             logger.error(e.getMessage(),e);
             throw new RuntimeException(e.getMessage(),e);
         } finally {
-            MysqlUtil.realeaseResource(null, null, conn);
+            MysqlUtils.releaseResource(null, null, conn);
 
         }
 
@@ -179,7 +179,7 @@ public class UpgradeDao extends AbstractBaseDao {
             logger.error(e.getMessage(),e);
             throw new RuntimeException(e.getMessage(),e);
         } finally {
-            MysqlUtil.realeaseResource(null, null, conn);
+            MysqlUtils.releaseResource(null, null, conn);
 
         }
 
@@ -207,7 +207,7 @@ public class UpgradeDao extends AbstractBaseDao {
             logger.error(e.getMessage(),e);
             throw new RuntimeException("sql: " + sql, e);
         } finally {
-            MysqlUtil.realeaseResource(rs, pstmt, conn);
+            MysqlUtils.releaseResource(rs, pstmt, conn);
 
         }
     }
@@ -277,7 +277,7 @@ public class UpgradeDao extends AbstractBaseDao {
             logger.error(e.getMessage(),e);
             throw new RuntimeException(e.getMessage(),e);
         } finally {
-            MysqlUtil.realeaseResource(null, pstmt, conn);
+            MysqlUtils.releaseResource(null, pstmt, conn);
         }
 
     }
@@ -316,7 +316,7 @@ public class UpgradeDao extends AbstractBaseDao {
             logger.error(e.getMessage(),e);
             throw new RuntimeException(e.getMessage(),e);
         } finally {
-            MysqlUtil.realeaseResource(null, pstmt, conn);
+            MysqlUtils.releaseResource(null, pstmt, conn);
         }
 
     }
@@ -338,7 +338,7 @@ public class UpgradeDao extends AbstractBaseDao {
             logger.error(e.getMessage(),e);
             throw new RuntimeException("sql: " + upgradeSQL, e);
         } finally {
-            MysqlUtil.realeaseResource(null, pstmt, conn);
+            MysqlUtils.releaseResource(null, pstmt, conn);
         }
 
     }
diff --git a/pom.xml b/pom.xml
index 3847b49fd3..4e9cc32dca 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,6 +19,7 @@
 		<logback.version>1.2.3</logback.version>
 		<hadoop.version>2.7.3</hadoop.version>
 		<quartz.version>2.2.3</quartz.version>
+		<jackson.version>2.9.8</jackson.version>
 	</properties>
 
 	<dependencyManagement>
@@ -163,27 +164,27 @@
 			<dependency>
 				<groupId>org.apache.httpcomponents</groupId>
 				<artifactId>httpclient</artifactId>
-				<version>4.3.2</version>
+				<version>4.4.1</version>
 			</dependency>
 			<dependency>
 				<groupId>org.apache.httpcomponents</groupId>
 				<artifactId>httpcore</artifactId>
-				<version>4.3.2</version>
+				<version>4.4.1</version>
 			</dependency>
 			<dependency>
 				<groupId>com.fasterxml.jackson.core</groupId>
 				<artifactId>jackson-annotations</artifactId>
-				<version>2.8.6</version>
+				<version>${jackson.version}</version>
 			</dependency>
 			<dependency>
 				<groupId>com.fasterxml.jackson.core</groupId>
 				<artifactId>jackson-databind</artifactId>
-				<version>2.8.6</version>
+				<version>${jackson.version}</version>
 			</dependency>
 			<dependency>
 				<groupId>com.fasterxml.jackson.core</groupId>
 				<artifactId>jackson-core</artifactId>
-				<version>2.8.6</version>
+				<version>${jackson.version}</version>
 			</dependency>
 
 			<dependency>
@@ -241,8 +242,6 @@
 				<version>1.10</version>
 			</dependency>
 
-
-
 			<dependency>
 				<groupId>ch.qos.logback</groupId>
 				<artifactId>logback-classic</artifactId>
@@ -368,13 +367,13 @@
 
 		</dependencies>
 	</dependencyManagement>
-	
+
 	<scm>
 		<connection>scm:git:https://github.com/analysys/EasyScheduler.git</connection>
 		<developerConnection>scm:git:https://github.com/analysys/EasyScheduler.git</developerConnection>
 		<url>https://github.com/analysys/EasyScheduler.git</url>
-	  <tag>HEAD</tag>
-  </scm>
+		<tag>HEAD</tag>
+	</scm>
 
 	<build>
 		<plugins>
@@ -435,7 +434,7 @@
 				</configuration>
 			</plugin>
 		</plugins>
-		
+
 	</build>
 
 	<modules>