补充上次

esua-epdc/epdc-commons/epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/utils/ModuleUtils.java

@@ -1,9 +1,16 @@
 package com.elink.esua.epdc.commons.tools.utils;
 
 import com.alibaba.fastjson.JSON;
+import com.elink.esua.epdc.commons.tools.constant.StrConstant;
+import com.elink.esua.epdc.commons.tools.exception.RenException;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.codec.CharEncoding;
+import org.springframework.util.Base64Utils;
 
+import java.io.UnsupportedEncodingException;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
 import java.util.UUID;
 
 /**
@@ -41,7 +48,7 @@ public class ModuleUtils {
      * @date 2019/9/5 14:44
      */
     public static String generateUUID() {
-        return UUID.randomUUID().toString().replace("-", "");
+        return UUID.randomUUID().toString().replace(StrConstant.HYPHEN, "");
     }
 
 
@@ -68,4 +75,63 @@ public class ModuleUtils {
         return str;
     }
 
+    /**
+     * 字符串转换为base64
+     *
+     * @param params
+     * @return java.lang.String
+     * @author work@yujt.net.cn
+     * @date 2020/2/6 16:39
+     */
+    public static String encodeByBase64(String params) {
+        if (StringUtils.isEmpty(params)) {
+            return null;
+        }
+        try {
+            return Base64Utils.encodeToUrlSafeString(params.getBytes(CharEncoding.UTF_8));
+        } catch (UnsupportedEncodingException e) {
+            throw new RenException("字符串编码方法异常");
+        }
+    }
+
+    /**
+     * base64解码
+     *
+     * @param base64Str
+     * @return java.lang.String
+     * @author work@yujt.net.cn
+     * @date 2020/2/6 16:48
+     */
+    public static String decodeFromBase64(String base64Str) {
+        if (StringUtils.isEmpty(base64Str)) {
+            return null;
+        }
+        try {
+            return new String(Base64Utils.decodeFromUrlSafeString(base64Str), CharEncoding.UTF_8);
+        } catch (UnsupportedEncodingException e) {
+            throw new RenException("字符串编码方法异常");
+        }
+    }
+
+    /**
+     * 验证字符串是否是日期格式
+     *
+     * @param str        被验证的字符串
+     * @param dateFormat 指定日期格式
+     * @return boolean
+     * @author work@yujt.net.cn
+     * @date 2020/2/7 10:53
+     */
+    public static boolean isValidDate(String str, String dateFormat) {
+        boolean convertSuccess = true;
+        // 指定日期格式
+        SimpleDateFormat format = new SimpleDateFormat(dateFormat);
+        try {
+            format.setLenient(false);
+            format.parse(str);
+        } catch (ParseException e) {
+            convertSuccess = false;
+        }
+        return convertSuccess;
+    }
 }