diff --git a/README.md b/README.md
index 488de4d..ef6f345 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ gitee:https://gitee.com/jzsw-it/yexuejc-base
 
 
 ### 使用
->yexuejc.base.version=1.4.1
+>yexuejc.base.version=1.4.5
 
 pom.xml
 ```
diff --git a/UPDATE.md b/UPDATE.md
index 37be89b..6dc57ba 100644
--- a/UPDATE.md
+++ b/UPDATE.md
@@ -1,6 +1,12 @@
 yexuejc-base 更新记录
 ------------------
 
+#### version ：1.4.5
+**time：2022-5-9 13:37:31** <br/>
+**branch：** master    <br/>
+**update：**     <br/>
+>1. 扩展FileUtil,优化Base64的包
+#
 #### version ：1.4.4
 **time：2021-4-24 00:41:31** <br/>
 **branch：** master    <br/>
diff --git a/pom.xml b/pom.xml
index fb9b02a..98b303e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>top.yexuejc</groupId>
     <artifactId>yexuejc-base</artifactId>
-    <version>1.4.4</version>
+    <version>1.4.5</version>
 
     <name>${project.artifactId}</name>
     <url>https://github.com/yexuejc/yexuejc-base</url>
diff --git a/src/test/java/com/yexuejc/base/util/JsonUtilTest.java b/src/test/java/com/yexuejc/base/util/JsonUtilTest.java
new file mode 100644
index 0000000..d7f5c98
--- /dev/null
+++ b/src/test/java/com/yexuejc/base/util/JsonUtilTest.java
@@ -0,0 +1,36 @@
+package com.yexuejc.base.util;
+
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+public class JsonUtilTest {
+    public static void main(String[] args) {
+        TestA testA = new TestA("张三", 1, false);
+        System.out.println(JsonUtil.json2Obj(JsonUtil.obj2Json(testA), Map.class));
+
+        List<TestA> list = new ArrayList<>();
+        list.add(testA);
+        list.add(testA);
+        list.add(testA);
+        System.out.println(JsonUtil.json2Obj(JsonUtil.obj2Json(list), List.class,TestA.class));
+    }
+
+    static class TestA implements Serializable {
+        public String name;
+        public Integer id;
+        public Boolean sex;
+
+        public TestA() {
+        }
+
+        public TestA(String name, Integer id, Boolean sex) {
+            this.name = name;
+            this.id = id;
+            this.sex = sex;
+        }
+    }
+
+}
\ No newline at end of file