正则 -- 时间、汉字、email、手机号码

1: 时间
"^(?:(?:(?:0?[1-9]|1//d|2[0-8])-(?:0?[1-9]|1[0-2]))-(?:(?:1[6-9]|[2-9]//d)//d{2}))$|" +
    "^(?:(?:(?:31-0?[13578]|1[02])|(?:(?:29|30)-(?:0?[1,3-9]|1[0-2])))-(?:(?:1[6-9]|[2-9]//d)//d{2}))$|" +
    "^(?:29-0?2-(?:(?:(?:1[6-9]|[2-9]//d)(?:0[48]|[2468][048]|[13579][26]))))$";

2：汉字
System.out.println(hanzi.matches("^[/u4E00-/u9FA5]?$"));

 

3：email

//w+@(//w+//.)+[a-z]{2,3}

 

4：手机号码

0{0,1}(13[0-9]|15[0-9]|18[6-9])[0-9]{8}