strip accents

src/main/java/com/jh/boot/utils/Utils.java

@@ -2,6 +2,7 @@ package com.jh.boot.utils;
 
 import java.math.BigDecimal;
 import java.math.RoundingMode;
+import java.text.Normalizer;
 import java.util.Objects;
 
 import org.springframework.util.StringUtils;
@@ -260,5 +261,13 @@ public class Utils {
         return nullsFirst && c1 == null ? -1 : 1;
     }
 
+    public static String normalize(String s) {
+    	if (s == null) {
+    		return null;
+    	}
+    	s = Normalizer.normalize(s, Normalizer.Form.NFD);
+        s = s.replaceAll("[\\p{InCombiningDiacriticalMarks}]", "");
+    	return s.toLowerCase();
+    }
     
 }