code: public static boolean containXMLEscapeChar(String xml) {
  		String escapes[] = { "<", ">", "&", "\'", "\"" };
  
  		for (String escape : escapes) {
  			if (xml.contains(escape)) {
  				return true;
  			}
  		}
  		return false;
  	}
docs: 判断字符串中是否含有XML的转义符
  
  @param xml 需要判断的字符串
  
  @return 转义符