在网页上获取邮箱:
package com.my.test; import java.io.BufferedReader; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import java.sql.Statement; import java.util.regex.Matcher; import java.util.regex.Pattern; public class GetMail { public static void main(String args[]){ String patternStr = "[\\w[.-]][email protected][\\w[.-]]+\\.[\\w]+"; String url = "http://www.sina.com.cn"; GetContent(patternStr,url); } private static void GetContent(String patternStr,String urlPath) { URL url; int responsecode; HttpURLConnection urlConnection; BufferedReader reader; String line; Statement st = DbUtil.getConn(); try{ //生成一个URL对象,要获取源代码的网页地址为:http://www.sina.com.cn url=new URL(urlPath); //打开URL urlConnection = (HttpURLConnection)url.openConnection(); //获取服务器响应代码 responsecode=urlConnection.getResponseCode(); if(responsecode==200){ //得到输入流,即获得了网页的内容 reader=new BufferedReader(new InputStreamReader(urlConnection.getInputStream(),"UTF-8")); while((line=reader.readLine())!=null){ // 相当于埋好了陷阱匹配的地方就会掉下去 Pattern pattern = Pattern.compile(patternStr); // 定义一个matcher用来做匹配 Matcher matcher = pattern.matcher(line); // 如果找到了 while (matcher.find()) { st.executeUpdate("insert into email_from_web (email) values (‘"+matcher.group()+"‘)"); System.out.println(matcher.group()); } } } else{ System.out.println("获取不到网页的源码,服务器响应代码为:"+responsecode); } } catch(Exception e){ System.out.println("获取不到网页的源码,出现异常:"+e); }finally { DbUtil.closeDb(); } } }
数据库Mysql相关代码:
package com.my.test; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class DbUtil { private static String username = "root"; private static String pwd = "123456"; private static String url = "jdbc:mysql://127.0.0.1:3306/test"; private static Connection conn = null; private static Statement st = null; private static ResultSet rs = null; static Statement getConn(){ try { Class.forName("com.mysql.jdbc.Driver"); conn = DriverManager.getConnection(url, username, pwd); st = conn.createStatement(); } catch (Exception e) { throw new RuntimeException(); } return st; } static void closeDb(){ try { if(rs!=null){ rs.close(); } if(st!=null){ st.close(); } if(conn!=null){ conn.close(); } } catch (SQLException e) { System.out.println(e.getMessage()); throw new RuntimeException(); } } }
发送邮件java maill
package com.my.test; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.Properties; import javax.activation.DataHandler; import javax.activation.FileDataSource; import javax.mail.Address; import javax.mail.BodyPart; import javax.mail.Message; import javax.mail.Multipart; import javax.mail.Session; import javax.mail.Transport; import javax.mail.internet.InternetAddress; import javax.mail.internet.MimeBodyPart; import javax.mail.internet.MimeMessage; import javax.mail.internet.MimeMultipart; public class SendMail { private MimeMessage mimeMsg; //MIME邮件对象 private Session session; //邮件会话对象 private Properties props; //系统属性 //smtp认证用户名和密码 private String username; private String password; private Multipart mp; //Multipart对象,邮件内容,标题,附件等内容均添加到其中后再生成MimeMessage对象 /** * Constructor * @param smtp 邮件发送服务器 */ public SendMail(String smtp){ setSmtpHost(smtp); createMimeMessage(); } /** * 设置邮件发送服务器 * @param hostName String */ public void setSmtpHost(String hostName) { System.out.println("设置系统属性:mail.smtp.host = "+hostName); if(props == null) props = System.getProperties(); //获得系统属性对象 props.put("mail.smtp.host",hostName); //设置SMTP主机 } /** * 创建MIME邮件对象 * @return */ public boolean createMimeMessage() { try { System.out.println("准备获取邮件会话对象!"); session = Session.getDefaultInstance(props,null); //获得邮件会话对象 } catch(Exception e){ System.err.println("获取邮件会话对象时发生错误!"+e); return false; } System.out.println("准备创建MIME邮件对象!"); try { mimeMsg = new MimeMessage(session); //创建MIME邮件对象 mp = new MimeMultipart(); return true; } catch(Exception e){ System.err.println("创建MIME邮件对象失败!"+e); return false; } } /** * 设置SMTP是否需要验证 * @param need */ public void setNeedAuth(boolean need) { System.out.println("设置smtp身份认证:mail.smtp.auth = "+need); if(props == null) props = System.getProperties(); if(need){ props.put("mail.smtp.auth","true"); }else{ props.put("mail.smtp.auth","false"); } } /** * 设置用户名和密码 * @param name * @param pass */ public void setNamePass(String name,String pass) { username = name; password = pass; } /** * 设置邮件主题 * @param mailSubject * @return */ public boolean setSubject(String mailSubject) { System.out.println("设置邮件主题!"); try{ mimeMsg.setSubject(mailSubject); return true; } catch(Exception e) { System.err.println("设置邮件主题发生错误!"); return false; } } /** * 设置邮件正文 * @param mailBody String */ public boolean setBody(String mailBody) { try{ BodyPart bp = new MimeBodyPart(); bp.setContent(""+mailBody,"text/html;charset=UTF-8"); mp.addBodyPart(bp); return true; } catch(Exception e){ System.err.println("设置邮件正文时发生错误!"+e); return false; } } /** * 添加附件 * @param filename String */ public boolean addFileAffix(String filename) { System.out.println("增加邮件附件:"+filename); try{ BodyPart bp = new MimeBodyPart(); FileDataSource fileds = new FileDataSource(filename); bp.setDataHandler(new DataHandler(fileds)); bp.setFileName(fileds.getName()); mp.addBodyPart(bp); return true; } catch(Exception e){ System.err.println("增加邮件附件:"+filename+"发生错误!"+e); return false; } } /** * 设置发信人 * @param from String */ public boolean setFrom(String from) { System.out.println("设置发信人!"); try{ mimeMsg.setFrom(new InternetAddress(from)); //设置发信人 return true; } catch(Exception e) { return false; } } /** * 设置收信人 * @param to String */ public boolean setTo(String to){ if(to == null)return false; try{ mimeMsg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(to)); return true; } catch(Exception e) { return false; } } /** * 设置抄送人 * @param copyto String */ public boolean setCopyTo(String copyto) { if(copyto == null)return false; try{ mimeMsg.setRecipients(Message.RecipientType.CC,(Address[])InternetAddress.parse(copyto)); return true; } catch(Exception e) { return false; } } /** * 发送邮件 */ public boolean sendOut() { try{ mimeMsg.setContent(mp); mimeMsg.saveChanges(); System.out.println("正在发送邮件...."); Session mailSession = Session.getInstance(props,null); Transport transport = mailSession.getTransport("smtp"); transport.connect((String)props.get("mail.smtp.host"),username,password); transport.sendMessage(mimeMsg,mimeMsg.getRecipients(Message.RecipientType.TO)); if(mimeMsg.getRecipients(Message.RecipientType.CC)!=null){ transport.sendMessage(mimeMsg,mimeMsg.getRecipients(Message.RecipientType.CC)); } System.out.println("发送邮件成功!"); transport.close(); return true; } catch(Exception e) { System.err.println("邮件发送失败!"+e); return false; } } /** * 调用sendOut方法完成邮件发送 * @param smtp * @param from * @param to * @param subject * @param content * @param username * @param password * @return boolean */ public static boolean send(String smtp,String from,String to,String subject,String content,String username,String password) { SendMail theMail = new SendMail(smtp); theMail.setNeedAuth(true); //需要验证 if(!theMail.setSubject(subject)) return false; if(!theMail.setBody(content)) return false; if(!theMail.setTo(to)) return false; if(!theMail.setFrom(from)) return false; theMail.setNamePass(username,password); if(!theMail.sendOut()) return false; return true; } /** * 调用sendOut方法完成邮件发送,带抄送 * @param smtp * @param from * @param to * @param copyto * @param subject * @param content * @param username * @param password * @return boolean */ public static boolean sendAndCc(String smtp,String from,String to,String copyto,String subject,String content,String username,String password) { SendMail theMail = new SendMail(smtp); theMail.setNeedAuth(true); //需要验证 if(!theMail.setSubject(subject)) return false; if(!theMail.setBody(content)) return false; if(!theMail.setTo(to)) return false; if(!theMail.setCopyTo(copyto)) return false; if(!theMail.setFrom(from)) return false; theMail.setNamePass(username,password); if(!theMail.sendOut()) return false; return true; } /** * 调用sendOut方法完成邮件发送,带附件 * @param smtp * @param from * @param to * @param subject * @param content * @param username * @param password * @param filename 附件路径 * @return */ public static boolean send(String smtp,String from,String to,String subject,String content,String username,String password,String filename) { SendMail theMail = new SendMail(smtp); theMail.setNeedAuth(true); //需要验证 if(!theMail.setSubject(subject)) return false; if(!theMail.setBody(content)) return false; if(!theMail.addFileAffix(filename)) return false; if(!theMail.setTo(to)) return false; if(!theMail.setFrom(from)) return false; theMail.setNamePass(username,password); if(!theMail.sendOut()) return false; return true; } /** * 调用sendOut方法完成邮件发送,带附件和抄送 * @param smtp * @param from * @param to * @param copyto * @param subject * @param content * @param username * @param password * @param filename * @return */ public static boolean sendAndCc(String smtp,String from,String to,String copyto,String subject,String content,String username,String password,String filename) { SendMail theMail = new SendMail(smtp); theMail.setNeedAuth(true); //需要验证 if(!theMail.setSubject(subject)) return false; if(!theMail.setBody(content)) return false; if(!theMail.addFileAffix(filename)) return false; if(!theMail.setTo(to)) return false; if(!theMail.setCopyTo(copyto)) return false; if(!theMail.setFrom(from)) return false; theMail.setNamePass(username,password); if(!theMail.sendOut()) return false; return true; } public static void main(String[] args) { String from = "**@qq.com"; String to = ""; String subject = "123"; String content ="456"; String username ="***@qq.com"; String password = "***"; String smtp = "smtp." + username.split("@")[1]; ResultSet rs = null; try { Statement st = DbUtil.getConn(); rs = st.executeQuery("SELECT email from email_from_web"); while (rs.next()) { to = rs.getString("email"); send(smtp, from, to, subject, content, username, password); } } catch (SQLException e) { e.printStackTrace(); }finally { if(rs!=null){ try { rs.close(); } catch (SQLException e) { e.printStackTrace(); } } DbUtil.closeDb(); } } }
时间: 2024-10-10 18:15:21