字符串解析工具集。 v1.0 新增slice方法，运行对一个字符串通过指定收尾字串来切割并获取中间串，类似与对字符串切两刀，保留中间的字符。

StringParseUtils.java

/**        
 * Copyright (c) 2013 by futeng www.futeng.org
 *
 * @{#} @StringParseUtils.java Create on @2013-5-22 @下午6:03:03 
 */    
package com.ustcinfo.inm.data.bolt.parser.utils;

/**    
 *    
 * @author <a href="mailto:ifuteng@gmail.com">futeng</a>
 *  
 */
public class StringParseUtils {
  
	public static String slice(String from, String to, String target, String prefixNeedRemove) {
		String str = slice(from, to, target, true);
		if (str.startsWith(prefixNeedRemove)) {
			return str.substring(prefixNeedRemove.length()).trim();
		}
		return str;
	}
	
	public static String slice(String from, String to, String target, boolean needTrim) {
		if(!hasText(from ,to, target) || !contains(target, from, to)) {
			try {
				throw new Exception("StringParseUtils#slice method need three parameters, please macke sure everyone has content(whitespace or empty are all illegal).");
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		String str = target;
		
		int beginIndex = str.indexOf(from)+from.length();
		if(beginIndex == str.length()) {
			try {
				throw new Exception("Can not slice the String, there is no empty left.");
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		
		int endIndex = str.indexOf(to);
		if(endIndex < beginIndex) {
			try {
				throw new Exception("Can not slice the String, make sure the start slice piece before the end slice piece.");
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
		
		return needTrim ? str.substring(beginIndex, endIndex).trim() : str.substring(beginIndex, endIndex);
	}
	
	public static String slice(String from, String to, String target) {
		return slice(from, to, target, true);
	}
	
	/**
	 * Check whether the given CharSequence's length >0
	 */
	public static boolean hasLength(CharSequence str) {
		return (str != null && str.length() > 0);
	}
	
	/**
	 * Check whether the given CharSequence has actual text(whitespace will return false).
	 */
	public static boolean hasText(CharSequence str) {
		if (!hasLength(str)) {
			return false;
		}
		int strLen = str.length();
		for (int i = 0; i < strLen; i++) {
			if (!Character.isWhitespace(str.charAt(i))) {
				return true;
			}
		}
		return false;
	}
	
	/**
	 * Check whether the given String has actual text(Whitespace will return false).
	 */
	public static boolean hasText(String str) {
		return hasText((CharSequence) str);
	}
	
	/**
	 * Check whether the given String array has actual text(Whitespace will return false).
	 * <p><pre>
	 * AlarmStringUtils.hasText("   a","pretty","girl  ","!") = true
	 * AlarmStringUtils.hasText("   ","so ","beautiful") = false;
	 * AlarmStringUtils.hasText("","do","you  like?") = false;
	 * </pre>
	 * @param strs the String array to check (may be <code>null</code>)
	 * @return <code>true</code> if the String is not <code>null</code>, its length is
	 * greater than 0, and it does not contain whitespace only
	 * @see #hasText(String)
	 */
	public static boolean hasText(String ...strs) {
		int len = strs.length;
		while(len>0) {
			if (! hasText(strs[strs.length-(len--)]) ) {
				return false;
			}
		}
		return true;
	}
	
	/**
	 * Check whether the target String contains all of element from the String array. 
	 */
	public static boolean contains(String target, String... sources) {
		if (!hasText(target) || !hasText(sources) ) {
			return false;
		}
		for (String str : sources) {
			if (!target.contains(str)) {
				return false;
			}
		}
		return true;
	}
	
	/*public static void main(String[] args) {
		String target = "<+++>"+"\r\n"
				+ "设备告警流水号  =  21173"+"\r\n"
				+ "网络流水号  =  15182840"+"\r\n"
				+ "对象标识  =  .3221229568.3221233664.3221282824.3223113732.3222324262"+"\r\n"
				+ "对象名称  =  DC城阳小寨子m1(工)"+"\r\n"
				+ "对象类型  =  BTS"+"\r\n"
				+ "网元标识  =  .3221229568.3221233664.3221282824"+"\r\n"
				+ "网元名称  =  青岛BSC23"+"\r\n"
				+ "网元类型  =  BSC6000(R11+)"+"\r\n"
				+ "告警ID  =  26232"+"\r\n"
				+ "告警名称  =  BBU光模块收发异常告警"+"\r\n"
				+ "告警种类  =  故障"+"\r\n"
				+ "告警级别  =  重要"+"\r\n"
				+ "告警状态  =  未确认 & 未恢复"+"\r\n"
				+ "告警类型  =  硬件系统"+"\r\n"
				+ "发生时间  =  2013-03-17 00:00:40"+"\r\n"
				+ "定位信息  =  柜号=0, 框号=0, 槽号=6, 端口号=0, 单板类型=GTMU, 具体问题=2, 站点号=163, 站点类型=DBS3900 GSM, 站点名称=DC城阳小寨子m1(工)"+"\r\n"
				+ "<--->";
		
		long startTime = System.currentTimeMillis();
		for (int i = 0; i < 100000; i++) {
			slice("定位信息 ","<--->",target,"=");
		}
		System.out.println("Spend Time:"+(System.currentTimeMillis()-startTime)+"ms");
	}*/
}