StringUtils

base-common/src/main/java/com/ozs/common/utils/StringUtils.java

@@ -6,6 +6,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+
 import org.springframework.util.AntPathMatcher;
 import com.ozs.common.constant.Constants;
 import com.ozs.common.core.text.StrFormatter;
@@ -15,12 +16,38 @@ import com.ozs.common.core.text.StrFormatter;
  *
  * @author hx
  */
-public class StringUtils extends org.apache.commons.lang3.StringUtils
-{
-    /** 空字符串 */
+public class StringUtils extends org.apache.commons.lang3.StringUtils {
+
+    //为null,为"",为 "   " --- sunhh
+    public static boolean isEmpty(final Object obj) {
+        int strLen;
+        if (obj == null) {
+            return true;
+        } else {
+            CharSequence cs = obj.toString().trim();
+            if ((strLen = cs.length()) == 0) {
+                return true;
+            } else if (obj.toString().trim().toLowerCase().equals("null")) {
+                return true;
+            } else {
+                for (int i = 0; i < strLen; i++) {
+                    if (Character.isWhitespace(cs.charAt(i)) == false) {
+                        return false;
+                    }
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * 空字符串
+     */
     private static final String NULLSTR = "";
 
-    /** 下划线 */
+    /**
+     * 下划线
+     */
     private static final char SEPARATOR = '_';
 
     /**
@@ -29,8 +56,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param value defaultValue 要判断的value
      * @return value 返回值
      */
-    public static <T> T nvl(T value, T defaultValue)
-    {
+    public static <T> T nvl(T value, T defaultValue) {
         return value != null ? value : defaultValue;
     }
 
@@ -40,8 +66,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param coll 要判断的Collection
      * @return true：为空 false：非空
      */
-    public static boolean isEmpty(Collection<?> coll)
-    {
+    public static boolean isEmpty(Collection<?> coll) {
         return isNull(coll) || coll.isEmpty();
     }
 
@@ -51,8 +76,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param coll 要判断的Collection
      * @return true：非空 false：空
      */
-    public static boolean isNotEmpty(Collection<?> coll)
-    {
+    public static boolean isNotEmpty(Collection<?> coll) {
         return !isEmpty(coll);
     }
 
@@ -60,10 +84,9 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * * 判断一个对象数组是否为空
      *
      * @param objects 要判断的对象数组
-     ** @return true：为空 false：非空
+     *                * @return true：为空 false：非空
      */
-    public static boolean isEmpty(Object[] objects)
-    {
+    public static boolean isEmpty(Object[] objects) {
         return isNull(objects) || (objects.length == 0);
     }
 
@@ -73,8 +96,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param objects 要判断的对象数组
      * @return true：非空 false：空
      */
-    public static boolean isNotEmpty(Object[] objects)
-    {
+    public static boolean isNotEmpty(Object[] objects) {
         return !isEmpty(objects);
     }
 
@@ -84,8 +106,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param map 要判断的Map
      * @return true：为空 false：非空
      */
-    public static boolean isEmpty(Map<?, ?> map)
-    {
+    public static boolean isEmpty(Map<?, ?> map) {
         return isNull(map) || map.isEmpty();
     }
 
@@ -95,8 +116,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param map 要判断的Map
      * @return true：非空 false：空
      */
-    public static boolean isNotEmpty(Map<?, ?> map)
-    {
+    public static boolean isNotEmpty(Map<?, ?> map) {
         return !isEmpty(map);
     }
 
@@ -106,8 +126,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param str String
      * @return true：为空 false：非空
      */
-    public static boolean isEmpty(String str)
-    {
+    public static boolean isEmpty(String str) {
         return isNull(str) || NULLSTR.equals(str.trim());
     }
 
@@ -117,8 +136,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param str String
      * @return true：非空串 false：空串
      */
-    public static boolean isNotEmpty(String str)
-    {
+    public static boolean isNotEmpty(String str) {
         return !isEmpty(str);
     }
 
@@ -128,8 +146,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param object Object
      * @return true：为空 false：非空
      */
-    public static boolean isNull(Object object)
-    {
+    public static boolean isNull(Object object) {
         return object == null;
     }
 
@@ -139,8 +156,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param object Object
      * @return true：非空 false：空
      */
-    public static boolean isNotNull(Object object)
-    {
+    public static boolean isNotNull(Object object) {
         return !isNull(object);
     }
 
@@ -150,44 +166,37 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param object 对象
      * @return true：是数组 false：不是数组
      */
-    public static boolean isArray(Object object)
-    {
+    public static boolean isArray(Object object) {
         return isNotNull(object) && object.getClass().isArray();
     }
 
     /**
      * 去空格
      */
-    public static String trim(String str)
-    {
+    public static String trim(String str) {
         return (str == null ? "" : str.trim());
     }
 
     /**
      * 截取字符串
      *
-     * @param str 字符串
+     * @param str   字符串
      * @param start 开始
      * @return 结果
      */
-    public static String substring(final String str, int start)
-    {
-        if (str == null)
-        {
+    public static String substring(final String str, int start) {
+        if (str == null) {
             return NULLSTR;
         }
 
-        if (start < 0)
-        {
+        if (start < 0) {
             start = str.length() + start;
         }
 
-        if (start < 0)
-        {
+        if (start < 0) {
             start = 0;
         }
-        if (start > str.length())
-        {
+        if (start > str.length()) {
             return NULLSTR;
         }
 
@@ -197,43 +206,35 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
     /**
      * 截取字符串
      *
-     * @param str 字符串
+     * @param str   字符串
      * @param start 开始
-     * @param end 结束
+     * @param end   结束
      * @return 结果
      */
-    public static String substring(final String str, int start, int end)
-    {
-        if (str == null)
-        {
+    public static String substring(final String str, int start, int end) {
+        if (str == null) {
             return NULLSTR;
         }
 
-        if (end < 0)
-        {
+        if (end < 0) {
             end = str.length() + end;
         }
-        if (start < 0)
-        {
+        if (start < 0) {
             start = str.length() + start;
         }
 
-        if (end > str.length())
-        {
+        if (end > str.length()) {
             end = str.length();
         }
 
-        if (start > end)
-        {
+        if (start > end) {
             return NULLSTR;
         }
 
-        if (start < 0)
-        {
+        if (start < 0) {
             start = 0;
         }
-        if (end < 0)
-        {
+        if (end < 0) {
             end = 0;
         }
 
@@ -250,13 +251,11 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * 转义\： format("this is \\\\{} for {}", "a", "b") -> this is \a for b<br>
      *
      * @param template 文本模板，被替换的部分用 {} 表示
-     * @param params 参数值
+     * @param params   参数值
      * @return 格式化后的文本
      */
-    public static String format(String template, Object... params)
-    {
-        if (isEmpty(params) || isEmpty(template))
-        {
+    public static String format(String template, Object... params) {
+        if (isEmpty(params) || isEmpty(template)) {
             return template;
         }
         return StrFormatter.format(template, params);
@@ -268,8 +267,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param link 链接
      * @return 结果
      */
-    public static boolean ishttp(String link)
-    {
+    public static boolean ishttp(String link) {
         return StringUtils.startsWithAny(link, Constants.HTTP, Constants.HTTPS);
     }
 
@@ -280,42 +278,35 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param sep 分隔符
      * @return set集合
      */
-    public static final Set<String> str2Set(String str, String sep)
-    {
+    public static final Set<String> str2Set(String str, String sep) {
         return new HashSet<String>(str2List(str, sep, true, false));
     }
 
     /**
      * 字符串转list
      *
-     * @param str 字符串
-     * @param sep 分隔符
+     * @param str         字符串
+     * @param sep         分隔符
      * @param filterBlank 过滤纯空白
-     * @param trim 去掉首尾空白
+     * @param trim        去掉首尾空白
      * @return list集合
      */
-    public static final List<String> str2List(String str, String sep, boolean filterBlank, boolean trim)
-    {
+    public static final List<String> str2List(String str, String sep, boolean filterBlank, boolean trim) {
         List<String> list = new ArrayList<String>();
-        if (StringUtils.isEmpty(str))
-        {
+        if (StringUtils.isEmpty(str)) {
             return list;
         }
 
         // 过滤空白字符串
-        if (filterBlank && StringUtils.isBlank(str))
-        {
+        if (filterBlank && StringUtils.isBlank(str)) {
             return list;
         }
         String[] split = str.split(sep);
-        for (String string : split)
-        {
-            if (filterBlank && StringUtils.isBlank(string))
-            {
+        for (String string : split) {
+            if (filterBlank && StringUtils.isBlank(string)) {
                 continue;
             }
-            if (trim)
-            {
+            if (trim) {
                 string = string.trim();
             }
             list.add(string);
@@ -327,22 +318,16 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
     /**
      * 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 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))
-        {
+    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))
-                {
+        } else {
+            for (String str : array) {
+                if (collection.contains(str)) {
                     return true;
                 }
             }
@@ -353,20 +338,16 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
     /**
      * 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
+     * @param cs                  指定字符串
      * @param searchCharSequences 需要检查的字符串数组
      * @return 是否包含任意一个字符串
      */
-    public static boolean containsAnyIgnoreCase(CharSequence cs, CharSequence... searchCharSequences)
-    {
-        if (isEmpty(cs) || isEmpty(searchCharSequences))
-        {
+    public static boolean containsAnyIgnoreCase(CharSequence cs, CharSequence... searchCharSequences) {
+        if (isEmpty(cs) || isEmpty(searchCharSequences)) {
             return false;
         }
-        for (CharSequence testStr : searchCharSequences)
-        {
-            if (containsIgnoreCase(cs, testStr))
-            {
+        for (CharSequence testStr : searchCharSequences) {
+            if (containsIgnoreCase(cs, testStr)) {
                 return true;
             }
         }
@@ -376,10 +357,8 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
     /**
      * 驼峰转下划线命名
      */
-    public static String toUnderScoreCase(String str)
-    {
-        if (str == null)
-        {
+    public static String toUnderScoreCase(String str) {
+        if (str == null) {
             return null;
         }
         StringBuilder sb = new StringBuilder();
@@ -389,31 +368,23 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
         boolean curreCharIsUpperCase = true;
         // 下一字符是否大写
         boolean nexteCharIsUpperCase = true;
-        for (int i = 0; i < str.length(); i++)
-        {
+        for (int i = 0; i < str.length(); i++) {
             char c = str.charAt(i);
-            if (i > 0)
-            {
+            if (i > 0) {
                 preCharIsUpperCase = Character.isUpperCase(str.charAt(i - 1));
-            }
-            else
-            {
+            } else {
                 preCharIsUpperCase = false;
             }
 
             curreCharIsUpperCase = Character.isUpperCase(c);
 
-            if (i < (str.length() - 1))
-            {
+            if (i < (str.length() - 1)) {
                 nexteCharIsUpperCase = Character.isUpperCase(str.charAt(i + 1));
             }
 
-            if (preCharIsUpperCase && curreCharIsUpperCase && !nexteCharIsUpperCase)
-            {
+            if (preCharIsUpperCase && curreCharIsUpperCase && !nexteCharIsUpperCase) {
                 sb.append(SEPARATOR);
-            }
-            else if ((i != 0 && !preCharIsUpperCase) && curreCharIsUpperCase)
-            {
+            } else if ((i != 0 && !preCharIsUpperCase) && curreCharIsUpperCase) {
                 sb.append(SEPARATOR);
             }
             sb.append(Character.toLowerCase(c));
@@ -425,18 +396,14 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
     /**
      * 是否包含字符串
      *
-     * @param str 验证字符串
+     * @param str  验证字符串
      * @param strs 字符串组
      * @return 包含返回true
      */
-    public static boolean inStringIgnoreCase(String str, String... strs)
-    {
-        if (str != null && strs != null)
-        {
-            for (String s : strs)
-            {
-                if (str.equalsIgnoreCase(trim(s)))
-                {
+    public static boolean inStringIgnoreCase(String str, String... strs) {
+        if (str != null && strs != null) {
+            for (String s : strs) {
+                if (str.equalsIgnoreCase(trim(s))) {
                     return true;
                 }
             }
@@ -450,27 +417,21 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * @param name 转换前的下划线大写方式命名的字符串
      * @return 转换后的驼峰式命名的字符串
      */
-    public static String convertToCamelCase(String name)
-    {
+    public static String convertToCamelCase(String name) {
         StringBuilder result = new StringBuilder();
         // 快速检查
-        if (name == null || name.isEmpty())
-        {
+        if (name == null || name.isEmpty()) {
             // 没必要转换
             return "";
-        }
-        else if (!name.contains("_"))
-        {
+        } else if (!name.contains("_")) {
             // 不含下划线，仅将首字母大写
             return name.substring(0, 1).toUpperCase() + name.substring(1);
         }
         // 用下划线将原始字符串分割
         String[] camels = name.split("_");
-        for (String camel : camels)
-        {
+        for (String camel : camels) {
             // 跳过原始字符串中开头、结尾的下换线或双重下划线
-            if (camel.isEmpty())
-            {
+            if (camel.isEmpty()) {
                 continue;
             }
             // 首字母大写
@@ -483,30 +444,22 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
     /**
      * 驼峰式命名法 例如：user_name->userName
      */
-    public static String toCamelCase(String s)
-    {
-        if (s == null)
-        {
+    public static String toCamelCase(String s) {
+        if (s == null) {
             return null;
         }
         s = s.toLowerCase();
         StringBuilder sb = new StringBuilder(s.length());
         boolean upperCase = false;
-        for (int i = 0; i < s.length(); i++)
-        {
+        for (int i = 0; i < s.length(); i++) {
             char c = s.charAt(i);
 
-            if (c == SEPARATOR)
-            {
+            if (c == SEPARATOR) {
                 upperCase = true;
-            }
-            else if (upperCase)
-            {
+            } else if (upperCase) {
                 sb.append(Character.toUpperCase(c));
                 upperCase = false;
-            }
-            else
-            {
+            } else {
                 sb.append(c);
             }
         }
@@ -516,20 +469,16 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
     /**
      * 查找指定字符串是否匹配指定字符串列表中的任意一个字符串
      *
-     * @param str 指定字符串
+     * @param str  指定字符串
      * @param strs 需要检查的字符串数组
      * @return 是否匹配
      */
-    public static boolean matches(String str, List<String> strs)
-    {
-        if (isEmpty(str) || isEmpty(strs))
-        {
+    public static boolean matches(String str, List<String> strs) {
+        if (isEmpty(str) || isEmpty(strs)) {
             return false;
         }
-        for (String pattern : strs)
-        {
-            if (isMatch(pattern, str))
-            {
+        for (String pattern : strs) {
+            if (isMatch(pattern, str)) {
                 return true;
             }
         }
@@ -543,64 +492,52 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils
      * ** 表示任意层路径;
      *
      * @param pattern 匹配规则
-     * @param url 需要匹配的url
+     * @param url     需要匹配的url
      * @return
      */
-    public static boolean isMatch(String pattern, String url)
-    {
+    public static boolean isMatch(String pattern, String url) {
         AntPathMatcher matcher = new AntPathMatcher();
         return matcher.match(pattern, url);
     }
 
     @SuppressWarnings("unchecked")
-    public static <T> T cast(Object obj)
-    {
+    public static <T> T cast(Object obj) {
         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 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)
-    {
+    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 s    原始字符串
      * @param size 字符串指定长度
-     * @param c 用于补齐的字符
+     * @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)
-    {
+    public static final String padl(final String s, final int size, final char c) {
         final StringBuilder sb = new StringBuilder(size);
-        if (s != null)
-        {
+        if (s != null) {
             final int len = s.length();
-            if (s.length() <= size)
-            {
-                for (int i = size - len; i > 0; i--)
-                {
+            if (s.length() <= size) {
+                for (int i = size - len; i > 0; i--) {
                     sb.append(c);
                 }
                 sb.append(s);
-            }
-            else
-            {
+            } else {
                 return s.substring(len - size, len);
             }
-        }
-        else
-        {
-            for (int i = size; i > 0; i--)
-            {
+        } else {
+            for (int i = size; i > 0; i--) {
                 sb.append(c);
             }
         }