diff --git a/eros-framework/src/main/java/com/benmu/framework/update/VersionChecker.java b/eros-framework/src/main/java/com/benmu/framework/update/VersionChecker.java
index a174c95..19f737b 100755
--- a/eros-framework/src/main/java/com/benmu/framework/update/VersionChecker.java
+++ b/eros-framework/src/main/java/com/benmu/framework/update/VersionChecker.java
@@ -306,32 +306,30 @@ public void onResponse(File response, int id) {
      * MD5 效验
      */
     private boolean checkZipValidate(File file) {
-        if (file.exists()) {
-            byte[] json = FileManager.extractZip(file, "md5.json");
-            if (json == null) return false;
-            try {
-                Md5MapperModel mapper = ManagerFactory.getManagerService(ParseManager.class)
-                        .parseObject(new String(json, "UTF-8"),
-                                Md5MapperModel.class);
-                //校验文件正确性
-                List<Md5MapperModel.Item> lists = mapper.getFilesMd5();
-                // 按照md5值从小到大排列
-                Collections.sort(lists);
-                //所有md5想加得到总的md5
-                String total = "";
-                for (Md5MapperModel.Item item : lists) {
-                    total = total + item.getMd5();
-                }
-                String finalMd5 = Md5Util.getMd5code(total);
-                //比较md5是否正确
-                newVersion = new JsVersionInfoBean(mapper.getJsVersion(), mapper.getAndroid(),
-                        mapper.getTimestamp());
-                return mapper.getJsVersion().equals(finalMd5);
-            } catch (UnsupportedEncodingException e) {
-                e.printStackTrace();
-            }
+        if (!file.exists()) {
+            return false;
+        }
+        String json = FileManager.extractZip(file, "md5.json");
+        if (TextUtils.isEmpty(json)) {
+            return false;
+        }
+        Md5MapperModel mapper = ManagerFactory.getManagerService(ParseManager.class)
+                .parseObject(json,
+                        Md5MapperModel.class);
+        //校验文件正确性
+        List<Md5MapperModel.Item> lists = mapper.getFilesMd5();
+        // 按照md5值从小到大排列
+        Collections.sort(lists);
+        //所有md5想加得到总的md5
+        String total = "";
+        for (Md5MapperModel.Item item : lists) {
+            total = total + item.getMd5();
         }
-        return false;
+        String finalMd5 = Md5Util.getMd5code(total);
+        //比较md5是否正确
+        newVersion = new JsVersionInfoBean(mapper.getJsVersion(), mapper.getAndroid(),
+                mapper.getTimestamp());
+        return mapper.getJsVersion().equals(finalMd5);
     }