要求:使用 正则表达式 实现以下验证:
  匹配Email地址
  匹配网址URL
  匹配帐号是否合法(字母开头,允许5-16字节,允许字母数字下划线)
  匹配国内电话号码 区号3位或者4位
      匹配国内手机号 11位
    匹配腾讯QQ号
  匹配中国邮政编码
  匹配身份证
  匹配ip地址

 

1.正则主要入口:

/**
 * 
 */
package com.niit.Regex;

import java.util.Scanner;

/**
 * @author: Annie
 * @date:2016年6月6日
 * @description:
 */
public class RegexHomeWork {

    public static void main(String[] args) {
        String flag = null;
        Scanner in = new Scanner(System.in);
        RegexFunction rf = new RegexFunction();
        int num = 0;
        do{
            System.out.println("-----请执行以下操作:");
            System.out.println("1.匹配Email地址");
            System.out.println("2.匹配网址:");
            System.out.println("3.匹配账号是否合法字母开头,允许5-16字节,允许字母数字下划线:");
            System.out.println("4.匹配国内电话号码 区号3位或者4位:");
            System.out.println("5.匹配国内手机号 11位");
            System.out.println("6.匹配腾讯QQ号");
            System.out.println("7.匹配中国邮政编码:");
            System.out.println("8.匹配身份证");
            System.out.println("9.匹配ip地址");        
            System.out.println("-------------------");
            num = in.nextInt();
            switch (num) {
            case 1:
                rf.Email();

                break;
            case 2:
                rf.URL();
                break;
            case 3:
                rf.accountNumber();

                break;
            case 4:
                rf.telPhone();
                break;
            case 5:
                rf.mobilePhone();
                break;
            case 6:
                rf.qq();
                break;
            case 7:
                rf.postcode();
                break;
            case 8:
                rf.iDcard();
                break;
            case 9:
                rf.ipAdrr();
                break;

            }
            System.out.println("是否继续:(y/n)");
            flag = in.next();
            flag = flag.toLowerCase();
        }while("y".equals(flag));


    }
}

2.正则匹配的方法类

/**
 * 
 */
package com.niit.Regex;

import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @author: Annie
 * @date:2016年6月6日
 * @description:正则表达式匹配的方法
 */
public class RegexFunction {
    Scanner in = new Scanner(System.in);
    String str,regex;

    //讲匹配的步骤封装成一个方法
    public void patternFunction(String regex,String str){
        Pattern pattern = Pattern.compile(regex);
        Matcher    matcher = pattern.matcher(str);
        boolean flag = matcher.find();
        if(flag){
            System.out.println(matcher.group()+"匹配成功");
        }else {
            System.out.println("匹配错误");
        }
    }


    public void Email(){
        System.out.println("请输入你的邮箱号:");
        str = in.next();
        regex = "\\w+@\\w+(\\.\\w+)+" ;
        patternFunction(regex, str);

    }

    public void URL(){
        //  http://www.baidu.com 或者是https://xxxxxxx.xxx.com
        System.out.println("请输入你的网址:");
         str = in.next();
         regex = "(http|ftp|https)://(w{3}\\.)*\\w+\\.\\w+";
     patternFunction(regex, str);
        
        
    }

    public void accountNumber(){
        System.out.println("请输入你的账号:");
        str = in.next();
        regex = "[a-zA-Z]\\w{4,15}";
        patternFunction(regex, str);
    }

    public void telPhone(){
        System.out.println("请输入你的电话号码:");
        str = in.next();
        regex = "\\d{3,4}\\d{8}";
        patternFunction(regex, str);

    }

    public void mobilePhone(){
        System.out.println("请输入你的手机号码:");
        str = in.next();
        regex = "[1-9][\\d]{10}";
        patternFunction(regex, str);

    }

    public void qq(){
        System.out.println("请输入你的QQ号:");
         str = in.next();
         regex = "\\w+@\\w+\\.\\w+(\\.\\w+)*";
         patternFunction(regex, str);
        
    }

    public void  postcode(){
        System.out.println("请输入邮政编码");
        str = in.next();
        regex = "[1-9]\\d{6}";
        patternFunction(regex, str);
    }

    public void iDcard (){
        System.out.println("输入你的身份证号码:");
        str = in.next();
        regex = "[\\d]{17}\\w";
        patternFunction(regex, str);
    }

    public void ipAdrr(){
        System.out.println("请输入ip地址:");
        str = in.next();
        regex = "(\\d{1,3}\\.){3}(\\d{1,3})";
        patternFunction(regex, str);
    }
}

 

posted on 2016-06-06 16:56  王铭霞  阅读(170)  评论(0编辑  收藏  举报