diff --git a/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/contoller/h5/WxAuthController.java b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/contoller/h5/WxAuthController.java
index e5e5f17c..289c65dd 100644
--- a/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/contoller/h5/WxAuthController.java
+++ b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/contoller/h5/WxAuthController.java
@@ -9,6 +9,7 @@ import me.chanjar.weixin.common.error.WxErrorException;
 import me.chanjar.weixin.mp.api.WxMpService;
 import org.jeecg.common.api.vo.Result;
 import org.jeecg.modules.utils.CookieUtil;
+import org.jeecg.modules.utils.MD5Util;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
diff --git a/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/entity/WxH5OuthrizeForm.java b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/entity/WxH5OuthrizeForm.java
index 86f589f7..88e44c6a 100644
--- a/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/entity/WxH5OuthrizeForm.java
+++ b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/entity/WxH5OuthrizeForm.java
@@ -1,6 +1,7 @@
 package org.jeecg.modules.entity;
 
 import lombok.Data;
+import org.jeecg.modules.utils.Json;
 
 import javax.validation.constraints.NotEmpty;
 @Data
diff --git a/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/utils/Json.java b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/utils/Json.java
new file mode 100644
index 00000000..af5ed7f9
--- /dev/null
+++ b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/utils/Json.java
@@ -0,0 +1,20 @@
+package org.jeecg.modules.utils;
+
+import com.alibaba.fastjson.JSON;
+
+public class Json {
+
+    /**
+     * 对象序列化为JSON字符串
+     *
+     * @param object
+     * @return
+     */
+    public static String toJsonString(Object object) {
+        return JSON.toJSONString(object);
+    }
+
+    public static <T> T fromJson(String jsonStr, Class<T> clazz) {
+        return JSON.parseObject(jsonStr, clazz);
+    }
+}
diff --git a/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/utils/MD5Util.java b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/utils/MD5Util.java
new file mode 100644
index 00000000..0733b201
--- /dev/null
+++ b/jeecg-module-system/jeecg-system-start/src/main/java/org/jeecg/modules/utils/MD5Util.java
@@ -0,0 +1,75 @@
+package org.jeecg.modules.utils;
+
+import java.security.MessageDigest;
+import java.util.Objects;
+
+/**
+ * MD5加密工具类
+ */
+public class MD5Util {
+    private static final String DEFAULT_MD_5_SALT = "fjdsl321312kf349832&*^*903294[JNLIUIK]%fsdjfkl";//加盐md5盐值
+
+    /**
+     * 获得字符串的md5值
+     *
+     * @return md5加密后的字符串
+     */
+    public static String getMd5(String s) {
+        char[] hexDigits = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+        try {
+            byte[] btInput = s.getBytes();
+            // 获得MD5摘要算法的 MessageDigest 对象
+            MessageDigest mdInst = MessageDigest.getInstance("MD5");
+            // 使用指定的字节更新摘要
+            mdInst.update(btInput);
+            // 获得密文
+            byte[] md = mdInst.digest();
+            // 把密文转换成十六进制的字符串形式
+            int j = md.length;
+            char[] str = new char[j * 2];
+            int k = 0;
+            for (int i = 0; i < j; i++) {
+                byte byte0 = md[i];
+                str[k++] = hexDigits[byte0 >>> 4 & 0xf];
+                str[k++] = hexDigits[byte0 & 0xf];
+            }
+            return new String(str);
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * 校验字符串的md5值
+     *
+     * @param str 目标字符串
+     * @param md5 基准md5
+     * @return 校验结果
+     */
+    public static boolean checkMd5(String str, String md5) {
+        return Objects.requireNonNull(getMd5(str)).equalsIgnoreCase(md5);
+    }
+
+    /**
+     * 获得加盐md5，算法过程是原字符串md5后连接加盐字符串后再进行md5
+     *
+     * @param str  待加密的字符串
+     * @param salt 盐
+     * @return 加盐md5
+     */
+    public static String getMd5AndSalt(String str, String salt) {
+        return getMd5(Objects.requireNonNull(getMd5(str)).concat(salt));
+    }
+
+    /**
+     * 获得加盐md5，算法过程是原字符串md5后连接加盐字符串后再进行md5
+     * 使用默认盐值
+     *
+     * @param str 待加密的字符串
+     * @return 加盐md5
+     */
+    public static String getMd5AndSalt(String str) {
+        return getMd5(Objects.requireNonNull(getMd5(str)).concat(DEFAULT_MD_5_SALT));
+    }
+}