Sample code sharing for java to capture email numbers from web pages or files (picture)

这篇文章主要为大家详细介绍了java如何抓取网页或文件中的邮箱号码，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

本文实例为大家分享了java抓取邮箱号码的具体代码，供大家参考，具体内容如下

java抓取文件中邮箱号码的具体代码

package reg;


import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class TestEmail {

public static void main(String[] args) {
// TODO Auto-generated method stub
 BufferedReader br=null;
 try {
br=new BufferedReader(new FileReader("D:/1.htm"));
String str=null;
StringBuilder sb=new StringBuilder();
while((str=br.readLine())!=null){
sb.append(str);
}
List es=getEmail(sb.toString());
for(String e:es){
System.out.println(e);
}
} catch (FileNotFoundException e) {
// TODO: handle exception
e.printStackTrace();
}catch (IOException e) {
// TODO: handle exception
e.printStackTrace();
}finally {
try {
if(br!=null) br.close();
} catch (IOException e) {
// TODO: handle exception
e.printStackTrace();
}
}
}
 public static List getEmail(String str){
 List es=new ArrayList();
Pattern p=Pattern.compile("[\\w\\.-]*\\w+@[\\w\\.-]*\\w+\\.\\w{2,5}");
// Pattern p=Pattern.compile("[\\w[.-]]+@[\\w[.-]]+\\.[\\w]+");
 Matcher m=p.matcher(str);
 while(m.find()){
 es.add(m.group());
 }
 return es;
 }
}

java抓取网页中邮箱号码的具体代码

package reg;

import java.io.BufferedReader; 
import java.io.InputStreamReader; 
import java.util.regex.Matcher; 
import java.util.regex.Pattern; 
 
public class Testemail01 
{ 
 public static String getWebCon(String domain) 
 { 
 System.out.println("开始抓取邮件地址..("+domain+")"); 
 StringBuffer sb=new StringBuffer(); 
 try 
 { 
 java.net.URL url=new java.net.URL(domain); 
 BufferedReader in=new BufferedReader(new InputStreamReader(url.openStream())); 
 String line; 
 while((line=in.readLine())!=null) 
 { 
 parse(line); 
 } 
 in.close(); 
 } 
 catch(Exception e) 
 { 
 sb.append(e.toString()); 
 System.err.println(e); 
 
 } 
 return sb.toString(); 
 } 
 public static void main(String[] args) 
 { 
 String s=Testemail01.getWebCon("http://tieba.baidu.com/p/2366935784"); 
 } 
 private static void parse(String line) 
 { 
 Pattern p=Pattern.compile("[\\w[.-]]+@[\\w[.-]]+\\.[\\w]+");//邮箱的正则表达式 
 Matcher m=p.matcher(line); 
 while(m.find()) 
 { 
 System.out.println(m.group()); 
 } 
 } 
}

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