今天遇到个玄学问题，用python3写的pop接收yandex最新邮件可以正常使用，但是java用的jodd-email开源库写的却报证书问题。
Caused by: jodd.mail.MailException: Open session error; <--- sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at jodd.mail.MailSession.open(MailSession.java:86)
at jodd.mail.ReceiveMailSession.open(ReceiveMailSession.java:42)
at com.github.binarywang.demo.wx.mp.yandex.Ymail.<init>(Ymail.java:38)
at com.github.binarywang.demo.wx.mp.yandex.Ymail.<clinit>(Ymail.java:18)
挂上梯子后，问题消失，但速度奇慢。我按照yandex官方教程(https://yandex.com/support/mail/mail-clients.html)给windows安装了证书，结果还是不行。更让人感到不可思议的是，我电脑连的是手机无线网，结果手机上面却显示了证书已安装。
下面是部分python代码：
# -*- coding:utf-8 -*-
# @Time: 2018/8/10 14:49
# send email with yandex，使用接收邮件时需要在yandex设置中开启要接收的folder
import smtplib
import poplib
from email.parser import Parser
import time
yandex_mail = "****"
yandex_pass = "****"
send_to_email = "****"
def send_emails(title, msg):
server = smtplib.SMTP_SSL('smtp.yandex.com', 465)
server.ehlo()
server.login(yandex_mail, yandex_pass)
message = 'Subject: {}\n\n{}'.format(title, msg)
server.sendmail(yandex_mail, send_to_email, message)
server.quit()
print('E-mails successfully sent!')
# indent用于缩进显示:
def get_email_content(message):
j = 0
content = ''
for part in message.walk():
j = j + 1
file_name = part.get_filename()
contentType = part.get_content_type()
if file_name: # 保存附件
pass
elif contentType == 'text/plain' or contentType == 'text/html':
data = part.get_payload(decode=True)
content = data.decode('utf-8', 'ignore')
# return str(content, 'utf-8')
return content
def get_server(usr, pwd, url="pop.yandex.com", port=995):
server = poplib.POP3_SSL(url, port)
server.user(yandex_mail)
server.pass_(yandex_pass)
return server
def get_msg(server, index):
resp, mails, octets = server.list()
# 可以查看返回的列表类似['1 82923', '2 2184', ...]
mails = [str(b, 'utf-8') for b in mails] # 将bytes的list转为str的list
resp, lines, octets = server.retr(index)
# 获得整个邮件的原始文本:
lines = [str(b, 'utf-8') for b in lines]
msg_content = "\n".join(list(map(str, lines)))
# 解析邮件:
msg = Parser().parsestr(msg_content)
return msg
def get_receive_time(msg):
rtime = msg.get('X-Yandex-TimeMark')
return int(rtime)
def get_from(msg):
mfrom = msg.get('From')
return mfrom
def receive_latest_email():
server = get_server(yandex_mail, yandex_pass)
# list()返回所有邮件的编号:
resp, mails, octets = server.list()
# print(mails)
# latest_index = len(mails)
latest_index = 1 # 经测试，在yandex中最新邮箱始终为1
msg = get_msg(server, latest_index)
receive_time = int(get_receive_time(msg))
mfrom = get_from(msg)
content = get_email_content(msg)
print(content)
server.quit()
return receive_time, mfrom, content
# send_emails('Test Mail', 'Yes its a test mail!')
# print(receive_latest_email())
receive_latest_email()
下面是部分java代码：
package com.github.binarywang.demo.wx.mp.yandex;
import jodd.mail.*;
import java.util.Date;
import java.util.List;
/***
* Time: 2018/8/12/15:20
* Description: yandex email
*/
public class Ymail {
private static final String USER = "****";
private static final String HOST = "pop.yandex.com";
private static final String PASSWD = "****";
private static final int POP_PORT = 995;
private ReceiveMailSession session = null;
private ReceivedEmail latestEmail = null;
private static Ymail ourInstance = new Ymail();
public static Ymail getInstance() {
return ourInstance;
}
private Ymail() {
if (this.session == null) {
Pop3Server server = MailServer.create()
.host(HOST)
.auth(USER, PASSWD)
.ssl(true)
.port(POP_PORT)
.buildPop3MailServer();
this.session = server.createSession();
session.open();
}
}
public void closeSession() {
if (this.session != null) {
this.session.close();
}
}
public String latestEmailContent() {
if (latestEmail == null) {
refresh();
}
List<EmailMessage> messages = this.latestEmail.messages();
StringBuilder sb = new StringBuilder();
for (EmailMessage msg : messages) {
sb.append(msg.getContent());
}
return sb.toString();
}
public Date latestEmailDate() {
if (latestEmail == null) {
refresh();
}
return latestEmail.receivedDate();
}
public String latestEmailFrom() {
if (latestEmail == null) {
refresh();
}
return latestEmail.from().getEmail();
}
public void refresh() {
ReceivedEmail[] emails = this.session.receiveEmailAndMarkSeen();
this.latestEmail = emails[0];
}
}
解决方法：
private Ymail() {
if (this.session == null) {
Pop3Server server = MailServer.create()
.host(HOST)
.auth(USER, PASSWD)
.ssl(true)
.port(POP_PORT)
.buildPop3MailServer();
server.getSessionProperties().put("mail.pop3.ssl.trust", "*");
this.session = server.createSession();
session.open();
}
}
还是google好使！
参考资料：
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