开发中有个需求是配置邮箱，在配置过程中需要对用户填写的邮箱地址、用户名、密码等信息进行验证，该怎么做呢？
经过搜索和查看JavaMail API文档，发现Session类和Transport类很可疑，应该是用于和邮件服务器连接获取会话的。Session类的getInstance方法用来获取一个会话对象；调用getTransport方法获取一个Transport对象，该对象有一个connect方法用来连接邮箱服务器。
package com.inspur.utils;
import java.security.GeneralSecurityException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import com.sun.mail.util.MailSSLSocketFactory;
public class CheckSmtp {
private String host;
private String username;
private String password;
private Integer port;
private Boolean use_ssl;
private Boolean use_tls;
public CheckSmtp(String host, String username, String password, Integer port, Boolean use_ssl, Boolean use_tls) {
super();
this.host = host;
this.username = username;
this.password = password;
this.port = port;
this.use_ssl = use_ssl;
this.use_tls = use_tls;
}
public Map<String, String> check() {
Map<String, String> res = new HashMap<String, String>();
Properties props = new Properties();
props.put("mail.transport.protocol", "smtp");
props.put("mail.smtp.host", host);
props.put("mail.smtp.port", port);
props.put("mail.smtp.auth", "true");
if (ssl) {
props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.put("mail.smtp.port", 465);
}
if (tls) {
MailSSLSocketFactory sf;
try {
sf = new MailSSLSocketFactory();
sf.setTrustAllHosts(true);
props.put("mail.smtp.socketFactory.class", sf);
} catch (GeneralSecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
props.put("mail.smtp.port", 587);
props.put("mail.smtp.starttls.enable", true);
props.put("mail.smtp.ssl.trust", "*");
}
// 普通邮箱验证
// Session session = Session.getInstance(props);
// qq邮箱验证
Session session = Session.getInstance(props, new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
// 使用qq邮箱，验证及授权太麻烦，首先要在qq邮箱账户安全选项中开启smtp服务，然后还要发送短信获取授权码，就是下面nxmq...这一坨
// 简直太麻烦，最好不要用qq邮箱
return new PasswordAuthentication("980829088@qq.com", "nxmqvyqabwkfgsfhe");
}
});
// Transport transport = null;
try {
Transport transport = session.getTransport("smtp");
transport.connect(host, username, password);
transport.close();
System.out.println("Connected to smtp host!");
} catch (NoSuchProviderException e) {
// TODO Auto-generated catch block
System.out.println(e.getMessage());
res.put("status", "error");
res.put("message", e.getMessage());
return res;
} catch (MessagingException e) {
// TODO Auto-generated catch block
System.out.println(e.getMessage());
res.put("status", "error");
res.put("message", e.getMessage());
return res;
}
res.put("status", "success");
res.put("message", "sender mail config success");
return res;
}
}