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基础模块,提供配置,日志,SPI,图排序,路径匹配,资源扫描,包扫描,常用工具类

There is a newer version: 0.0.3

package com.zusmart.basic.toolkit;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.StringTokenizer;

/**
 * 字符串处理工具类
 * 
 * @author Administrator
 *
 */
public final class StringUtils {

	/**
	 * 判断字符串是否为空
	 * 
	 * @param charSequence
	 *            字符串
	 * @return true 为空
	 */
	public static boolean isBlank(CharSequence charSequence) {
		int length;
		if (null == charSequence || (length = charSequence.length()) == 0) {
			return true;
		}
		for (int i = 0; i < length; i++) {
			if (!Character.isWhitespace(charSequence.charAt(i))) {
				return false;
			}
		}
		return true;
	}

	public static boolean isNotBlank(CharSequence charSequence) {
		return !isBlank(charSequence);
	}

	/**
	 * 转换为骆驼命名法
	 * 
	 * @param value
	 *            字符串
	 * @return 骆驼命名法处理后的字符串
	 */
	public static String toCamelName(String value) {
		if (isBlank(value)) {
			return value;
		}
		return value.substring(0, 1).toLowerCase() + value.substring(1);
	}

	/**
	 * 集合类型转string数组
	 * 
	 * @param collection
	 *            集合内容
	 * @return 字符串数组
	 */
	public static String[] toArray(Collection collection) {
		return collection.toArray(new String[0]);
	}

	/**
	 * 字符串根据分隔符转string数组
	 * 
	 * @param str
	 *            字符串
	 * @param delimiters
	 *            分隔符
	 * @param trimTokens
	 *            是否去掉空格
	 * @param ignoreEmptyTokens
	 *            是否忽略两个分隔符中间只有空格的数据
	 * @return 字符串数组
	 */
	public static String[] toArray(String str, String delimiters, boolean trimTokens, boolean ignoreEmptyTokens) {
		if (str == null) {
			return new String[0];
		}
		StringTokenizer st = new StringTokenizer(str, delimiters);
		List tokens = new ArrayList();
		while (st.hasMoreTokens()) {
			String token = st.nextToken();
			if (trimTokens) {
				token = token.trim();
			}
			if (!ignoreEmptyTokens || token.length() > 0) {
				tokens.add(token);
			}
		}
		return toArray(tokens);
	}

	public static String getExceptionMessage(Throwable cause) {
		if (isBlank(cause.getMessage())) {
			return cause.toString();
		} else {
			return cause.getMessage();
		}
	}

}