Java 字符串的 处理

 public class StringUtil {public static String convertToStringWithTrim(Object object){if(null == object){return null;}String returnStr = (String)object;return Trim(returnStr);}public static String Trim(String str){if(IsEmpty(str)){return str;}return str.trim();}public static boolean IsEmpty(String str){if(null == str || str.length() == 0){return true;}return false;}/** * 将字符串包装成XML格式 */public static String PackIntoXMLStr(String target){return "<i>" + target + "</i>";}/** * 将字符串包装成XML格式 */public static String PackIntoXMLStrWithIndex(String target, String index){return "<v i=/""+index+"/">"+ (target == null ? "": target) + "</v>";}public static String bytesToHexString(byte[] src){ StringBuilder stringBuilder = new StringBuilder(""); if (src == null || src.length <= 0) { return null; } for (int i = src.length; i >=0 ; i--) { if(src[i] != 0) { int v = src[i] & 0xFF; String hv = Integer.toHexString(v); if (hv.length() < 2) { stringBuilder.append(0); } stringBuilder.append(hv); } } return stringBuilder.toString(); }}