diff --git a/README.md b/README.md
index 154615b9..1c312ebe 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,23 @@
 ## preparation
-only  Java环境
+jdk1.8
 
 ## introduction
 - 使用springboot启动datax，不再需要用python启动。
 - 以restful接口启动datax作业
 
+## TODO LIST
+
+* [x] springboot重构项目
+* [x] 通过restful接口调度datax完成抽取数据作业
+* [ ] 通过restful接口传入job配置json生成临时文件，根据文件配置调度datax执行该作业
+* [ ] 实现datax分布式作业
+* [ ] 网页端修改job配置的json
+* [ ] 网页端实时查看抽取日志
+* [ ] 网页端各种插件模板生成
+* [ ] job配置持久化到db
+* [ ] 精简assembly打包结构
+
+
 ## how to run
 ### 1. 在父工程目录下使用maven打包
 ```
diff --git a/mongodbwriter/pom.xml b/mongodbwriter/pom.xml
index 0360db2a..6c25aebb 100644
--- a/mongodbwriter/pom.xml
+++ b/mongodbwriter/pom.xml
@@ -39,7 +39,7 @@
         <dependency>
 		  <groupId>org.mongodb</groupId>
 		  <artifactId>mongo-java-driver</artifactId>
-		  <version>3.2.2</version>
+		  <version>3.4.2</version>
 		</dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
diff --git a/mongodbwriter/src/main/java/com/alibaba/datax/plugin/writer/mongodbwriter/util/MongoUtil.java b/mongodbwriter/src/main/java/com/alibaba/datax/plugin/writer/mongodbwriter/util/MongoUtil.java
index 17334be4..c65032f2 100644
--- a/mongodbwriter/src/main/java/com/alibaba/datax/plugin/writer/mongodbwriter/util/MongoUtil.java
+++ b/mongodbwriter/src/main/java/com/alibaba/datax/plugin/writer/mongodbwriter/util/MongoUtil.java
@@ -5,6 +5,7 @@ import com.alibaba.datax.common.util.Configuration;
 import com.alibaba.datax.plugin.writer.mongodbwriter.KeyConstant;
 import com.alibaba.datax.plugin.writer.mongodbwriter.MongoDBWriterErrorCode;
 import com.mongodb.MongoClient;
+import com.mongodb.MongoClientOptions;
 import com.mongodb.MongoCredential;
 import com.mongodb.ServerAddress;
 
@@ -40,7 +41,12 @@ public class MongoUtil {
         }
         try {
             MongoCredential credential = MongoCredential.createCredential(userName, database, password.toCharArray());
-            return new MongoClient(parseServerAddress(addressList), Arrays.asList(credential));
+            //当超过这个闲置时间客户端主动关闭连接，下次使用时重新建立连接，这样可以有效避免连接失效的问题
+            MongoClientOptions mongoClientOptions = new MongoClientOptions.Builder()
+                    .maxConnectionIdleTime(1000)
+                    .maxConnectionLifeTime(0)
+                    .build();
+            return new MongoClient(parseServerAddress(addressList), Arrays.asList(credential),mongoClientOptions);
 
         } catch (UnknownHostException e) {
             throw DataXException.asDataXException(MongoDBWriterErrorCode.ILLEGAL_ADDRESS,"不合法的地址");