From af0e0a110e7187bf008655f7510199a0c0b25ec4 Mon Sep 17 00:00:00 2001 From: Nymph2333 <498092988@qq.com> Date: 星期一, 10 四月 2023 14:27:40 +0800 Subject: [PATCH] newInstance() 已弃用,使用clazz.getDeclaredConstructor().newInstance() This method propagates any exception thrown by the nullary constructor, including a checked exception. Use of this method effectively bypasses the compile-time exception checking that would otherwise be performed by the compiler. The Constructor.newInstance method avoids this problem by wrapping any exception thrown by the constructor in a (checked) InvocationTargetException. The call clazz.newInstance() can be replaced by clazz.getDeclaredConstructor().newInstance() The latter sequence of calls is inferred to be able to throw the additional exception types InvocationTargetException and NoSuchMethodException. Both of these exception types are subclasses of ReflectiveOperationException. --- ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java | 82 ++++++++++++++++++++++++++++++++++++++++ 1 files changed, 81 insertions(+), 1 deletions(-) diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java index 8df5617..f2203ae 100644 --- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java +++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/StringUtils.java @@ -325,6 +325,32 @@ } /** + * 判断给定的set列表中是否包含数组array 判断给定的数组array中是否包含给定的元素value + * + * @param set 给定的集合 + * @param array 给定的数组 + * @return boolean 结果 + */ + public static boolean containsAny(Collection<String> collection, String... array) + { + if (isEmpty(collection) || isEmpty(array)) + { + return false; + } + else + { + for (String str : array) + { + if (collection.contains(str)) + { + return true; + } + } + return false; + } + } + + /** * 查找指定字符串是否包含指定字符串列表中的任意一个字符串同时串忽略大小写 * * @param cs 指定字符串 @@ -455,13 +481,18 @@ } /** - * 驼峰式命名法 例如:user_name->userName + * 驼峰式命名法 + * 例如:user_name->userName */ public static String toCamelCase(String s) { if (s == null) { return null; + } + if (s.indexOf(SEPARATOR) == -1) + { + return s; } s = s.toLowerCase(); StringBuilder sb = new StringBuilder(s.length()); @@ -531,4 +562,53 @@ { return (T) obj; } + + /** + * 数字左边补齐0,使之达到指定长度。注意,如果数字转换为字符串后,长度大于size,则只保留 最后size个字符。 + * + * @param num 数字对象 + * @param size 字符串指定长度 + * @return 返回数字的字符串格式,该字符串为指定长度。 + */ + public static final String padl(final Number num, final int size) + { + return padl(num.toString(), size, '0'); + } + + /** + * 字符串左补齐。如果原始字符串s长度大于size,则只保留最后size个字符。 + * + * @param s 原始字符串 + * @param size 字符串指定长度 + * @param c 用于补齐的字符 + * @return 返回指定长度的字符串,由原字符串左补齐或截取得到。 + */ + public static final String padl(final String s, final int size, final char c) + { + final StringBuilder sb = new StringBuilder(size); + if (s != null) + { + final int len = s.length(); + if (s.length() <= size) + { + for (int i = size - len; i > 0; i--) + { + sb.append(c); + } + sb.append(s); + } + else + { + return s.substring(len - size, len); + } + } + else + { + for (int i = size; i > 0; i--) + { + sb.append(c); + } + } + return sb.toString(); + } } \ No newline at end of file -- Gitblit v1.9.2