Posted on 2007-02-06 12:33
dennis 阅读(3916)
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java
常用的几个:
^[_/.0-9a-z-]+@([0-9a-z][0-9a-z-]+/.)+[a-z]{2,3}$
^[_a-z0-9-]+(/.[_a-z0-9-]+)*@[a-z0-9-]+(/.[a-z0-9-]+)*$
^(([0-9a-zA-Z]+)|([0-9a-zA-Z]+[_.0-9a-zA-Z-]*[0-9a-zA-Z]+))@([a-zA-Z0-9-]+[.])+([a-zA-Z]{2}|net|com|gov|mil|org|edu|int)$
^([a-z0-9A-Z]+[-|//.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?//.)+[a-zA-Z]{2,}$
/w+([-+.]/w+)*@/w+([-.]/w+)*/./w+([-.]/w+)*
在JAVA中使用:
import java.sql.*;
import java.io.*;
import java.util.regex.*;
public class test{
public static void main(String[] args){
try{
String s = "";
while(!s.equals("q")){
System.out.print("input:");
DataInputStream in = new DataInputStream(new BufferedInputStream(System.in));
s = in.readLine();
System.out.println("your input is :"+s);
String check = "^([a-z0-9A-Z]+[-|//.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?//.)+[a-zA-Z]{2,}$";
Pattern regex = Pattern.compile(check);
Matcher matcher = regex.matcher(s);
boolean isMatched = matcher.matches();
if(isMatched){
System.out.println("it's a email");
}else{
System.out.println("it's not a email");
}
}
}catch(Exception e){
System.out.println("error"+e.getMessage());
}
}