随机数代码优化

3 years ago · 61d69e4b5f
parent bc512abc0b
commit 61d69e4b5f
1 changed files with 3 additions and 3 deletions
--- a/panda-code/src/main/java/org/panda/code/uitl/StringUtil.java
+++ b/panda-code/src/main/java/org/panda/code/uitl/StringUtil.java
@ -71,11 +71,11 @@ public class StringUtil {
    public static String randomString(int length){
        StringBuffer randomString=new StringBuffer();
        while (length>0){
-            Random random=new Random();
-            int ran=random.nextInt(3);
+            ThreadLocalRandom threadLocalRandom = ThreadLocalRandom.current();
+            int ran=threadLocalRandom.nextInt(3);
            switch (ran){
                case 0:
-                    randomString.append(random.nextInt(10));
+                    randomString.append(threadLocalRandom.nextInt(10));
                    break;
                case 1:
                    randomString.append(randomLowerCase());