问题
由于公司邮箱并未开放POP3收信端口，但配置exchange后，手机邮件客户端可以收发邮件，因此决定使用exchange协议收发邮件。但测试过程中发现登录时反复提示“440 Login Timeout ”错误，用户名密码并没有出错。
解决方案
OWA（Outlook Web Access）提供的EWS（Exchange Web Service）的协议地址原来是https://Exchange邮件服务器名/EWS/Exchange.asmx，修改后即可登录了。
代码
官方文档地址
项目中添加ews-java-api.jar后即可，maven项目中添加
<dependency>
<groupId>com.microsoft.ews-java-api</groupId>
<artifactId>ews-java-api</artifactId>
<version>2.0</version>
</dependency>工具类代码如下：
import microsoft.exchange.webservices.data.core.ExchangeService;
import microsoft.exchange.webservices.data.core.PropertySet;
import microsoft.exchange.webservices.data.core.enumeration.misc.ExchangeVersion;
import microsoft.exchange.webservices.data.core.enumeration.property.BodyType;
import microsoft.exchange.webservices.data.core.enumeration.property.WellKnownFolderName;
import microsoft.exchange.webservices.data.core.enumeration.search.SortDirection;
import microsoft.exchange.webservices.data.core.enumeration.service.ConflictResolutionMode;
import microsoft.exchange.webservices.data.core.service.folder.Folder;
import microsoft.exchange.webservices.data.core.service.item.EmailMessage;
import microsoft.exchange.webservices.data.core.service.item.Item;
import microsoft.exchange.webservices.data.core.service.schema.ItemSchema;
import microsoft.exchange.webservices.data.credential.ExchangeCredentials;
import microsoft.exchange.webservices.data.credential.WebCredentials;
import microsoft.exchange.webservices.data.property.complex.Attachment;
import microsoft.exchange.webservices.data.property.complex.FileAttachment;
import microsoft.exchange.webservices.data.property.complex.MessageBody;
import microsoft.exchange.webservices.data.search.FindItemsResults;
import microsoft.exchange.webservices.data.search.ItemView;
import microsoft.exchange.webservices.data.search.filter.SearchFilter;
import java.io.File;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
/**
* Exchange邮件服务工具类
*
* @author Yang Cheng
* @date 2017-02-13
*/
public class ExchangeMailUtil {
private String mailServer;
private String user;
private String password;
private String domain;
public ExchangeMailUtil(String mailServer, String user, String password) {
this.mailServer = mailServer;
this.user = user;
this.password = password;
}
public ExchangeMailUtil(String mailServer, String user, String password, String domain) {
this.mailServer = mailServer;
this.user = user;
this.password = password;
this.domain = domain;
}
public static void main(String[] args) throws Exception {
// Outlook Web Access路径通常为/EWS/exchange.asmx
ExchangeMailUtil mailUtil = new ExchangeMailUtil("https://mail.domain.com/EWS/exchange.asmx",
"xx@domain.com", "xx");
// 接收邮件
ArrayList<EmailMessage> mails = mailUtil.receive(10);
for (EmailMessage mail : mails) {
System.out.println("邮件标题: " + mail.getSubject());
System.out.println("接收时间: " + mail.getDateTimeReceived());
System.out.println("发送人: " + mail.getFrom().getName() + ", 地址: " + mail.getFrom().getAddress());
System.out.println("已读:" + mail.getIsRead());
// 更新已读
if (!mail.getIsRead()) {
mail.setIsRead(true);
mail.update(ConflictResolutionMode.AlwaysOverwrite);
}
//System.out.println("邮件内容 :" + mail.getBody());
// 处理附件
List<Attachment> attachs = mail.getAttachments().getItems();
try {
if (mail.getHasAttachments()) {
for (Attachment attach : attachs) {
if (attach instanceof FileAttachment) {
//接收邮件到临时目录
System.out.println(attach.getName());
//File tempZip = new File("/tmp", attach.getName());
//((FileAttachment) attach).load(tempZip.getPath());
}
}
//删除邮件
//mail.delete(DeleteMode.HardDelete);
}
} catch (Exception e) {
e.printStackTrace();
}
System.out.println();
}
// 发送邮件
//mailUtil.send("Subject", new String[] { "xxx@domain.com" }, null, "content");
}
/**
* 创建邮件服务
*
* @return 邮件服务
*/
private ExchangeService getExchangeService() {
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2007_SP1);
//用户认证信息
ExchangeCredentials credentials;
if (domain == null) {
credentials = new WebCredentials(user, password);
} else {
credentials = new WebCredentials(user, password, domain);
}
service.setCredentials(credentials);
try {
service.setUrl(new URI(mailServer));
} catch (URISyntaxException e) {
e.printStackTrace();
}
return service;
}
/**
* 收取邮件
*
* @param max 最大收取邮件数
* @param searchFilter 收取邮件过滤规则
* @return
* @throws Exception
*/
public ArrayList<EmailMessage> receive(int max, SearchFilter searchFilter) throws Exception {
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2007_SP1);
ExchangeCredentials credentials = new WebCredentials(user, password);
service.setCredentials(credentials);
service.setUrl(new URI(mailServer));
//绑定收件箱,同样可以绑定发件箱
Folder inbox = Folder.bind(service, WellKnownFolderName.Inbox);
//获取文件总数量
int count = inbox.getTotalCount();
if (max > 0) {
count = count > max ? max : count;
}
//循环获取邮箱邮件
ItemView view = new ItemView(count);
//按照时间顺序收取
view.getOrderBy().add(ItemSchema.DateTimeReceived, SortDirection.Descending);
FindItemsResults<Item> findResults;
if (searchFilter == null) {
findResults = service.findItems(inbox.getId(), view);
} else {
// e.g. new SearchFilter.SearchFilterCollection(
// LogicalOperator.Or, new SearchFilter.ContainsSubstring(ItemSchema.Subject, "EWS"),
// new SearchFilter.ContainsSubstring(ItemSchema.Subject, "API"))
findResults = service.findItems(inbox.getId(), searchFilter, view);
}
service.loadPropertiesForItems(findResults, PropertySet.FirstClassProperties);
ArrayList<EmailMessage> result = new ArrayList<>();
for (Item item : findResults.getItems()) {
EmailMessage message = (EmailMessage) item;
result.add(message);
}
return result;
}
/**
* 收取所有邮件
*
* @throws Exception
*/
public ArrayList<EmailMessage> receive(int max) throws Exception {
return receive(max, null);
}
/**
* 收取邮件
*
* @throws Exception
*/
public ArrayList<EmailMessage> receive() throws Exception {
return receive(0, null);
}
/**
* 发送带附件的mail
*
* @param subject 邮件标题
* @param to 收件人列表
* @param cc 抄送人列表
* @param bodyText 邮件内容
* @param attachmentPaths 附件地址列表
* @throws Exception
*/
public void send(String subject, String[] to, String[] cc, String bodyText, String[] attachmentPaths)
throws Exception {
ExchangeService service = getExchangeService();
EmailMessage msg = new EmailMessage(service);
msg.setSubject(subject);
MessageBody body = MessageBody.getMessageBodyFromText(bodyText);
body.setBodyType(BodyType.HTML);
msg.setBody(body);
for (String toPerson : to) {
msg.getToRecipients().add(toPerson);
}
if (cc != null) {
for (String ccPerson : cc) {
msg.getCcRecipients().add(ccPerson);
}
}
if (attachmentPaths != null) {
for (String attachmentPath : attachmentPaths) {
msg.getAttachments().addFileAttachment(attachmentPath);
}
}
msg.send();
}
/**
* 发送不带附件的mail
*
* @param subject 邮件标题
* @param to 收件人列表
* @param cc 抄送人列表
* @param bodyText 邮件内容
* @throws Exception
*/
public void send(String subject, String[] to, String[] cc, String bodyText) throws Exception {
send(subject, to, cc, bodyText, null);
}
}