diff --git a/README.md b/README.md
index 98380a4..017361a 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@
     <dependency>
         <groupId>cn.ucloud.ufile</groupId>
         <artifactId>ufile-client-java</artifactId>
-        <version>2.1.2</version>
+        <version>2.1.3</version>
     </dependency>
     ```
 
@@ -36,7 +36,7 @@
         /*
          * your other dependencies
          */
-        implementation 'cn.ucloud.ufile:ufile-client-java:2.1.2'
+        implementation 'cn.ucloud.ufile:ufile-client-java:2.1.3'
     }
     ```
 
diff --git a/ufile-sample-java/pom.xml b/ufile-sample-java/pom.xml
index 98823bb..4d778c7 100644
--- a/ufile-sample-java/pom.xml
+++ b/ufile-sample-java/pom.xml
@@ -26,7 +26,7 @@
         <dependency>
             <groupId>cn.ucloud.ufile</groupId>
             <artifactId>ufile-client-java</artifactId>
-            <version>2.1.2</version>
+            <version>2.1.3</version>
         </dependency>
     </dependencies>
 
diff --git a/ufile-sample-java/src/main/java/cn/ucloud/ufile/sample/Constants.java b/ufile-sample-java/src/main/java/cn/ucloud/ufile/sample/Constants.java
index ff1093e..aff8853 100644
--- a/ufile-sample-java/src/main/java/cn/ucloud/ufile/sample/Constants.java
+++ b/ufile-sample-java/src/main/java/cn/ucloud/ufile/sample/Constants.java
@@ -11,6 +11,7 @@
 public class Constants {
     static {
         // 开启Debug级别日志
+        JLog.SHOW_TEST = true;
         JLog.SHOW_DEBUG = true;
     }
 
diff --git a/ufile-sample-java/src/main/java/cn/ucloud/ufile/sample/object/PutObjectSample.java b/ufile-sample-java/src/main/java/cn/ucloud/ufile/sample/object/PutObjectSample.java
index db1d97e..0a2190e 100644
--- a/ufile-sample-java/src/main/java/cn/ucloud/ufile/sample/object/PutObjectSample.java
+++ b/ufile-sample-java/src/main/java/cn/ucloud/ufile/sample/object/PutObjectSample.java
@@ -11,9 +11,11 @@
 import cn.ucloud.ufile.http.UfileCallback;
 import cn.ucloud.ufile.sample.Constants;
 import cn.ucloud.ufile.util.JLog;
+import cn.ucloud.ufile.util.MimeTypeUtil;
 import okhttp3.Request;
 
 import java.io.*;
+import java.net.URLEncoder;
 
 /**
  * @author: joshua
@@ -22,15 +24,16 @@
  */
 public class PutObjectSample {
     private static final String TAG = "PutObjectSample";
-    private static ObjectConfig config = new ObjectConfig("cn-bj", "ufileos.com");
+    private static ObjectConfig config = new ObjectConfig("cn-sh2", "ufileos.com");
 
     public static void main(String[] args) {
         InputStream is = new ByteArrayInputStream(new byte[]{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07});
         // 如果上传File，则文件的MimeType可以使用MimeTypeUtil.getMimeType(File)来获取，MimeTypeUtil可能支持的type类型不全，用户可以按需自行填写
-        String mimeType = "image/jpeg";
-        String keyName = "a/b/c.jpg";
-        String bucketName = "bucket_name";
-        putStream(is, mimeType, keyName, bucketName);
+        File file = new File("");
+        String keyName = "";
+        String mimeType = MimeTypeUtil.getMimeType(keyName);
+        String bucketName = "";
+        putFile(file, mimeType, keyName, bucketName);
     }
 
     public static void putFile(File file, String mimeType, String nameAs, String toBucket) {
diff --git a/ufile/pom.xml b/ufile/pom.xml
index 68d27dc..7c4ef65 100644
--- a/ufile/pom.xml
+++ b/ufile/pom.xml
@@ -7,7 +7,7 @@
     <groupId>cn.ucloud.ufile</groupId>
     <artifactId>ufile</artifactId>
     <packaging>pom</packaging>
-    <version>2.1.2</version>
+    <version>2.1.3</version>
 
     <modules>
         <module>ufile-core</module>
diff --git a/ufile/ufile-client-java/pom.xml b/ufile/ufile-client-java/pom.xml
index f08b813..76f688c 100644
--- a/ufile/ufile-client-java/pom.xml
+++ b/ufile/ufile-client-java/pom.xml
@@ -6,11 +6,11 @@
     <parent>
         <artifactId>ufile</artifactId>
         <groupId>cn.ucloud.ufile</groupId>
-        <version>2.1.2</version>
+        <version>2.1.3</version>
     </parent>
 
     <artifactId>ufile-client-java</artifactId>
-    <version>2.1.2</version>
+    <version>2.1.3</version>
 
     <dependencies>
         <dependency>
@@ -26,7 +26,7 @@
         <dependency>
             <groupId>cn.ucloud.ufile</groupId>
             <artifactId>ufile-core</artifactId>
-            <version>2.1.2</version>
+            <version>2.1.3</version>
         </dependency>
     </dependencies>
 
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/AppendObjectApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/AppendObjectApi.java
index 36b5ac8..ebac5a4 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/AppendObjectApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/AppendObjectApi.java
@@ -161,7 +161,7 @@ public AppendObjectApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileIOException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         List<Parameter<String>> query = new ArrayList<>();
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/DeleteObjectApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/DeleteObjectApi.java
index 8d2247a..eeb0418 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/DeleteObjectApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/DeleteObjectApi.java
@@ -5,6 +5,7 @@
 import cn.ucloud.ufile.auth.UfileAuthorizationException;
 import cn.ucloud.ufile.auth.sign.UfileSignatureException;
 import cn.ucloud.ufile.bean.base.BaseResponseBean;
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.exception.UfileParamException;
 import cn.ucloud.ufile.exception.UfileRequiredParamNotFoundException;
 import cn.ucloud.ufile.http.HttpClient;
@@ -79,7 +80,7 @@ public DeleteObjectApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
         String contentType = "application/json; charset=utf-8";
         String date = dateFormat.format(new Date(System.currentTimeMillis()));
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/DownloadFileApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/DownloadFileApi.java
index 5e791ac..d8b0a1f 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/DownloadFileApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/DownloadFileApi.java
@@ -246,7 +246,7 @@ public DownloadFileApi setBufferSize(int bufferSize) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         File dir = new File(localPath);
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/GenerateObjectPrivateUrlApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/GenerateObjectPrivateUrlApi.java
index 3458daf..3b6a7cc 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/GenerateObjectPrivateUrlApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/GenerateObjectPrivateUrlApi.java
@@ -12,6 +12,9 @@
 import cn.ucloud.ufile.util.Parameter;
 import com.google.gson.JsonElement;
 
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+
 
 /**
  * API-生成私有下载URL
@@ -82,7 +85,7 @@ public GenerateObjectPrivateUrlApi withAuthOptionalData(JsonElement authOptional
      * @throws UfileAuthorizationException         授权异常时抛出
      * @throws UfileSignatureException             签名异常时抛出
      */
-    public String createUrl() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    public String createUrl() throws UfileClientException {
         parameterValidat();
         long expiresTime = System.currentTimeMillis() / 1000 + expiresDuration;
 
@@ -135,7 +138,7 @@ public void run() {
                             .generateGetUrl(builder.getBaseUrl(), builder.getParams());
                     if (callback != null)
                         callback.onSuccess(url);
-                } catch (UfileParamException | UfileAuthorizationException | UfileSignatureException e) {
+                } catch (UfileClientException e) {
                     if (callback != null)
                         callback.onFailed(e);
                 }
@@ -143,14 +146,20 @@ public void run() {
         }.start();
     }
 
-    private String generateFinalHost(String bucketName, String keyName) {
+    private String generateFinalHost(String bucketName, String keyName) throws UfileClientException {
         if (host == null || host.length() == 0)
             return host;
 
         if (host.startsWith("http"))
             return String.format("%s/%s", host, keyName);
 
-        return String.format("http://%s.%s/%s", bucketName, host, keyName);
+        try {
+            bucketName = URLEncoder.encode(bucketName, "UTF-8");
+            keyName = URLEncoder.encode(keyName, "UTF-8");
+            return String.format("http://%s.%s/%s", bucketName, host, keyName);
+        } catch (UnsupportedEncodingException e) {
+            throw new UfileClientException("Occur error during URLEncode bucketName and keyName");
+        }
     }
 
     protected void parameterValidat() throws UfileParamException {
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/GenerateObjectPublicUrlApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/GenerateObjectPublicUrlApi.java
index d58fe92..ba5a7be 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/GenerateObjectPublicUrlApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/GenerateObjectPublicUrlApi.java
@@ -1,8 +1,12 @@
 package cn.ucloud.ufile.api.object;
 
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.exception.UfileParamException;
 import cn.ucloud.ufile.exception.UfileRequiredParamNotFoundException;
 
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+
 /**
  * API-生成公共下载URL
  *
@@ -42,19 +46,25 @@ protected GenerateObjectPublicUrlApi(String host, String keyName, String bucketN
      * @return 下载URL
      * @throws UfileRequiredParamNotFoundException 必要参数未找到时抛出
      */
-    public String createUrl() throws UfileParamException {
+    public String createUrl() throws UfileClientException {
         parameterValidat();
         return generateFinalHost(bucketName, keyName);
     }
 
-    private String generateFinalHost(String bucketName, String keyName) {
+    private String generateFinalHost(String bucketName, String keyName) throws UfileClientException {
         if (host == null || host.length() == 0)
             return host;
 
         if (host.startsWith("http"))
             return String.format("%s/%s", host, keyName);
 
-        return String.format("http://%s.%s/%s", bucketName, host, keyName);
+        try {
+            bucketName = URLEncoder.encode(bucketName, "UTF-8");
+            keyName = URLEncoder.encode(keyName, "UTF-8");
+            return String.format("http://%s.%s/%s", bucketName, host, keyName);
+        } catch (UnsupportedEncodingException e) {
+            throw new UfileClientException("Occur error during URLEncode bucketName and keyName");
+        }
     }
 
     protected void parameterValidat() throws UfileParamException {
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectListApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectListApi.java
index a54e290..369fd33 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectListApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectListApi.java
@@ -5,6 +5,7 @@
 import cn.ucloud.ufile.auth.UfileAuthorizationException;
 import cn.ucloud.ufile.auth.sign.UfileSignatureException;
 import cn.ucloud.ufile.bean.ObjectListBean;
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.exception.UfileParamException;
 import cn.ucloud.ufile.exception.UfileRequiredParamNotFoundException;
 import cn.ucloud.ufile.http.HttpClient;
@@ -114,7 +115,7 @@ public ObjectListApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
         List<Parameter<String>> query = new ArrayList<>();
         if (prefix != null)
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectProfileApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectProfileApi.java
index 5941a1d..3d09c63 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectProfileApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectProfileApi.java
@@ -84,7 +84,7 @@ public ObjectProfileApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         String contentType = "application/json; charset=utf-8";
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectRestoreApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectRestoreApi.java
index e5784ea..1e67839 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectRestoreApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/ObjectRestoreApi.java
@@ -6,6 +6,7 @@
 import cn.ucloud.ufile.auth.sign.UfileSignatureException;
 import cn.ucloud.ufile.bean.ObjectRestoreBean;
 import cn.ucloud.ufile.bean.UfileErrorBean;
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.exception.UfileParamException;
 import cn.ucloud.ufile.exception.UfileRequiredParamNotFoundException;
 import cn.ucloud.ufile.exception.UfileServerException;
@@ -82,7 +83,7 @@ public ObjectRestoreApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         String keyName_tmp = keyName; //参数参与签名
@@ -92,7 +93,7 @@ protected void prepareData() throws UfileParamException, UfileAuthorizationExcep
 
         call = new PutJsonRequestBuilder()
                 .setConnTimeOut(connTimeOut).setReadTimeOut(readTimeOut).setWriteTimeOut(writeTimeOut)
-                .baseUrl(generateFinalHost(bucketName, keyName_tmp + "?restore"))
+                .baseUrl(generateFinalHost(bucketName, keyName_tmp) + "?restore")
                 .addHeader("Accpet", "*/*")
                 .addHeader("Date", date)
                 .addHeader("authorization", authorization)
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/PutFileApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/PutFileApi.java
index 8d759db..f7519a3 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/PutFileApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/PutFileApi.java
@@ -163,7 +163,7 @@ public PutFileApi setBufferSize(int bufferSize) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileFileException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
         if (!file.exists())
             throw new UfileFileException("File is inexistent!");
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/PutStreamApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/PutStreamApi.java
index 9e8a8c4..96eea19 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/PutStreamApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/PutStreamApi.java
@@ -163,7 +163,7 @@ public PutStreamApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileIOException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         try {
             parameterValidat();
 
@@ -205,6 +205,8 @@ protected void prepareData() throws UfileParamException, UfileIOException, Ufile
             call = builder.build(httpClient.getOkHttpClient());
         } catch (IOException e) {
             throw new UfileIOException(e.getMessage());
+        } catch (UfileClientException e) {
+            throw e;
         }
     }
 
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/UploadFileHitApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/UploadFileHitApi.java
index c662a8e..8bea4bf 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/UploadFileHitApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/UploadFileHitApi.java
@@ -8,6 +8,7 @@
 import cn.ucloud.ufile.bean.base.BaseResponseBean;
 import cn.ucloud.ufile.compat.base64.Base64UrlEncoderCompat;
 import cn.ucloud.ufile.compat.base64.DefaultBase64UrlEncoderCompat;
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.exception.UfileIOException;
 import cn.ucloud.ufile.exception.UfileParamException;
 import cn.ucloud.ufile.exception.UfileRequiredParamNotFoundException;
@@ -120,7 +121,7 @@ public UploadFileHitApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException, UfileIOException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         String date = dateFormat.format(new Date(System.currentTimeMillis()));
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/UploadStreamHitApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/UploadStreamHitApi.java
index 766f30e..febba4a 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/UploadStreamHitApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/UploadStreamHitApi.java
@@ -8,6 +8,7 @@
 import cn.ucloud.ufile.bean.base.BaseResponseBean;
 import cn.ucloud.ufile.compat.base64.Base64UrlEncoderCompat;
 import cn.ucloud.ufile.compat.base64.DefaultBase64UrlEncoderCompat;
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.exception.UfileIOException;
 import cn.ucloud.ufile.exception.UfileParamException;
 import cn.ucloud.ufile.exception.UfileRequiredParamNotFoundException;
@@ -124,7 +125,7 @@ public UploadStreamHitApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileIOException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         String date = dateFormat.format(new Date(System.currentTimeMillis()));
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/AbortMultiUploadApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/AbortMultiUploadApi.java
index 8c64781..52fa073 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/AbortMultiUploadApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/AbortMultiUploadApi.java
@@ -6,6 +6,7 @@
 import cn.ucloud.ufile.auth.UfileAuthorizationException;
 import cn.ucloud.ufile.auth.sign.UfileSignatureException;
 import cn.ucloud.ufile.bean.base.BaseResponseBean;
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.exception.UfileParamException;
 import cn.ucloud.ufile.exception.UfileRequiredParamNotFoundException;
 import cn.ucloud.ufile.http.HttpClient;
@@ -66,7 +67,7 @@ public AbortMultiUploadApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         String contentType = "application/json; charset=utf-8";
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/FinishMultiUploadApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/FinishMultiUploadApi.java
index ebedf67..d62bd55 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/FinishMultiUploadApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/FinishMultiUploadApi.java
@@ -6,6 +6,7 @@
 import cn.ucloud.ufile.auth.UfileAuthorizationException;
 import cn.ucloud.ufile.auth.sign.UfileSignatureException;
 import cn.ucloud.ufile.bean.MultiUploadResponse;
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.exception.UfileParamException;
 import cn.ucloud.ufile.exception.UfileRequiredParamNotFoundException;
 import cn.ucloud.ufile.http.HttpClient;
@@ -100,7 +101,7 @@ public int compare(MultiUploadPartState o1, MultiUploadPartState o2) {
     };
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         PostStringRequestBuilder builder = new PostStringRequestBuilder();
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/InitMultiUploadApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/InitMultiUploadApi.java
index b098f64..712b38d 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/InitMultiUploadApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/InitMultiUploadApi.java
@@ -108,7 +108,7 @@ public InitMultiUploadApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
 
         String contentType = mediaType.toString();
diff --git a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/MultiUploadPartApi.java b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/MultiUploadPartApi.java
index a4c4658..10e3196 100644
--- a/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/MultiUploadPartApi.java
+++ b/ufile/ufile-client-java/src/main/java/cn/ucloud/ufile/api/object/multi/MultiUploadPartApi.java
@@ -128,7 +128,7 @@ public MultiUploadPartApi withAuthOptionalData(JsonElement authOptionalData) {
     }
 
     @Override
-    protected void prepareData() throws UfileParamException, UfileAuthorizationException, UfileSignatureException {
+    protected void prepareData() throws UfileClientException {
         parameterValidat();
         List<Parameter<String>> query = new ArrayList<>();
         query.add(new Parameter<>("uploadId", info.getUploadId()));
diff --git a/ufile/ufile-core/pom.xml b/ufile/ufile-core/pom.xml
index 1b44dbc..798965d 100644
--- a/ufile/ufile-core/pom.xml
+++ b/ufile/ufile-core/pom.xml
@@ -6,11 +6,11 @@
     <parent>
         <artifactId>ufile</artifactId>
         <groupId>cn.ucloud.ufile</groupId>
-        <version>2.1.2</version>
+        <version>2.1.3</version>
     </parent>
 
     <artifactId>ufile-core</artifactId>
-    <version>2.1.2</version>
+    <version>2.1.3</version>
 
     <dependencies>
         <dependency>
diff --git a/ufile/ufile-core/src/main/java/cn/ucloud/ufile/UfileConstants.java b/ufile/ufile-core/src/main/java/cn/ucloud/ufile/UfileConstants.java
index 4eb5fba..fd6902d 100644
--- a/ufile/ufile-core/src/main/java/cn/ucloud/ufile/UfileConstants.java
+++ b/ufile/ufile-core/src/main/java/cn/ucloud/ufile/UfileConstants.java
@@ -6,7 +6,7 @@
  * @date: 2018/11/22 15:00
  */
 public class UfileConstants {
-    public static final String SDK_VERSION = "2.1.2";
+    public static final String SDK_VERSION = "2.1.3";
     /**
      * 默认分片大小（4MB）
      */
diff --git a/ufile/ufile-core/src/main/java/cn/ucloud/ufile/api/UfileApi.java b/ufile/ufile-core/src/main/java/cn/ucloud/ufile/api/UfileApi.java
index f9b67c0..c9c2083 100644
--- a/ufile/ufile-core/src/main/java/cn/ucloud/ufile/api/UfileApi.java
+++ b/ufile/ufile-core/src/main/java/cn/ucloud/ufile/api/UfileApi.java
@@ -171,7 +171,8 @@ public T execute() throws UfileClientException, UfileServerException {
 
             return parseHttpResponse(response);
         } catch (IOException e) {
-            throw new UfileIOException("Occur IOException while sending http request");
+            throw new UfileIOException("Occur IOException while sending http request, " +
+                    "you can check the file which you want to upload/download is exist or changed");
         }
     }
 
diff --git a/ufile/ufile-core/src/main/java/cn/ucloud/ufile/api/object/UfileObjectApi.java b/ufile/ufile-core/src/main/java/cn/ucloud/ufile/api/object/UfileObjectApi.java
index b0fe213..d41283b 100644
--- a/ufile/ufile-core/src/main/java/cn/ucloud/ufile/api/object/UfileObjectApi.java
+++ b/ufile/ufile-core/src/main/java/cn/ucloud/ufile/api/object/UfileObjectApi.java
@@ -2,8 +2,12 @@
 
 import cn.ucloud.ufile.auth.ObjectAuthorizer;
 import cn.ucloud.ufile.api.UfileApi;
+import cn.ucloud.ufile.exception.UfileClientException;
 import cn.ucloud.ufile.http.HttpClient;
 
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+
 /**
  * Ufile 对象存储相关API基类
  *
@@ -33,13 +37,19 @@ public UfileObjectApi(ObjectAuthorizer authorizer, String host, HttpClient httpC
      * @param keyName    对象名称
      * @return API域名
      */
-    protected String generateFinalHost(String bucketName, String keyName) {
+    protected String generateFinalHost(String bucketName, String keyName) throws UfileClientException {
         if (host == null || host.length() == 0)
             return host;
 
         if (host.startsWith("http"))
             return String.format("%s/%s", host, keyName);
 
-        return String.format("http://%s.%s/%s", bucketName, host, keyName);
+        try {
+            bucketName = URLEncoder.encode(bucketName, "UTF-8");
+            keyName = URLEncoder.encode(keyName, "UTF-8");
+            return String.format("http://%s.%s/%s", bucketName, host, keyName);
+        } catch (UnsupportedEncodingException e) {
+            throw new UfileClientException("Occur error during URLEncode bucketName and keyName");
+        }
     }
 }