java正则表达式验证邮箱、IP地址、手机号码
1.java验证IP地址：

package com.ccit.networld.ccs.common.util;import java.io.IOException;  import java.util.regex.Matcher;  import java.util.regex.Pattern;  import org.apache.log4j.Logger; public class ClassPathResource {  private static final Logger logger = Logger.getLogger(ClassPathResource.class);    public static boolean isMobileNO(String mobiles){             Pattern p = Pattern.compile("^((13[0-9])|(15[^4,\\D])|(18[0,5-9]))\\d{8}$");             Matcher m = p.matcher(mobiles);             logger.info(m.matches()+"---");             return m.matches();         }        public static boolean isEmail(String email){          String str="^([a-zA-Z0-9]*[-_]?[a-zA-Z0-9]+)*@([a-zA-Z0-9]*[-_]?[a-zA-Z0-9]+)+[\\.][A-Za-z]{2,3}([\\.][A-Za-z]{2})?$";        Pattern p = Pattern.compile(str);             Matcher m = p.matcher(email);             logger.info(m.matches()+"---");             return m.matches();         }     public static void main(String[] args) throws IOException {             System.out.println(ClassPathResource.isEmail("121212121212@12-12.co-m.cn"));         }  }