用javamail发送带附件的邮件

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javamail

log4j EXT Apache

MailUtils代码

public class MailUtils {
// 定义发件人、收件人、SMTP服务器、用户名、密码、主题、内容等
private String displayName;
private String to;
private String cc;
private String from;
private String smtpServer;
private String username;
private String password;
private String subject;
private String content;
private boolean isAuth = false; //服务器是否要身份认证
private File filename;
private List<File> files = new ArrayList<File>(); //用于保存发送附件的文件名的集合
/**
* 设置SMTP服务器地址
*/
public void setSmtpServer(String smtpServer){
this.smtpServer=smtpServer;
}
/**
* 设置发件人的地址
*/
public void setFrom(String from){
this.from=from;
}
/**
* 设置抄送人的地址
*/
public void setCc(String cc) {
this.cc = cc;
}
/**
* 设置显示的名称
*/
public void setDisplayName(String displayName){
this.displayName=displayName;
}
/**
* 设置服务器是否需要身份认证
*/
public void setAuth(boolean isAuth){
this.isAuth=isAuth;
}
/**
* 设置E-mail用户名
*/
public void setUserName(String username){
this.username=username;
}
/**
* 设置E-mail密码
*/
public void setPassword(String password){
this.password=password;
}
/**
* 设置接收者
*/
public void setTo(String to){
this.to=to;
}
/**
* 设置主题
*/
public void setSubject(String subject){
this.subject=subject;
}
/**
* 设置主体内容
*/
public void setContent(String content){
this.content=content;
}
/**
* 该方法用于收集附件名
*/
public void addAttachfile(File fname){
files.add(fname);
}
/**
* 发送邮件
*/
public HashMap send(){
HashMap map=new HashMap();
map.put("success", "true");
String message="邮件发送成功！";
Session session=null;
Properties props = System.getProperties();
props.put("mail.smtp.host", smtpServer);
if(isAuth){ //服务器需要身份认证
props.put("mail.smtp.auth","true");
MailAuthenticator mailAuth=new MailAuthenticator(username,password);
session=Session.getDefaultInstance(props, mailAuth);
}else{
props.put("mail.smtp.auth","false");
session=Session.getDefaultInstance(props, null);
}
// session.setDebug(true);
Transport trans = null;
try {
Message msg = new MimeMessage(session);
try{
Address from_address = new InternetAddress(from, displayName);
msg.setFrom(from_address);
}catch(java.io.UnsupportedEncodingException e){
e.printStackTrace();
}
InternetAddress[] to_address=InternetAddress.parse(to);
msg.setRecipients(Message.RecipientType.TO,to_address);
InternetAddress[] cc_address=InternetAddress.parse(cc);
msg.setRecipients(Message.RecipientType.CC,cc_address);
msg.setSubject(subject);
Multipart mp = new MimeMultipart();
MimeBodyPart mbp = new MimeBodyPart();
mbp.setContent(content.toString(), "text/html;charset=gb2312");
mp.addBodyPart(mbp);
if(!files.isEmpty()){//有附件
for(int i=0;i<files.size();i++){
mbp=new MimeBodyPart();
filename=files.get(i); //选择出每一个附件名
FileDataSource fds=new FileDataSource(filename); //得到数据源
mbp.setDataHandler(new DataHandler(fds)); //得到附件本身并至入BodyPart
mbp.setFileName(fds.getName()); //得到文件名同样至入BodyPart
mp.addBodyPart(mbp);
}
}
msg.setContent(mp); //Multipart加入到信件
msg.setSentDate(new Date()); //设置信件头的发送日期
//发送信件
msg.saveChanges();
trans = session.getTransport("smtp");
trans.connect(smtpServer, username, password);
trans.sendMessage(msg, msg.getAllRecipients());
trans.close();
}catch(AuthenticationFailedException e){
map.put("success", "false");
message="邮件发送失败！错误原因：\n"+"身份验证错误!";
e.printStackTrace();
}catch (MessagingException e) {
message="邮件发送失败！错误原因：\n"+e.getMessage();
map.put("success", "false");
e.printStackTrace();
Exception ex = null;
if ((ex = e.getNextException()) != null) {
System.out.println(ex.toString());
ex.printStackTrace();
}
}
//System.out.println("\n提示信息:"+message);
map.put("message", message);
return map;
}
}

MailAuthenticator 代码

public class MailAuthenticator extends Authenticator
{
private String username,password;
public MailAuthenticator(String username,String password){
this.username = username;
this.password = password;
}
protected javax.mail.PasswordAuthentication getPasswordAuthentication() {
return new javax.mail.PasswordAuthentication(username,password);
}
}

FileFilter 代码

public class FileFilter implements FilenameFilter {
String prefix,ext;
public FileFilter(String prefix,String ext) {
this.prefix=prefix;
this.ext=ext;
}
public boolean accept(File dir, String name) {
return name.startsWith(prefix) && name.endsWith(ext);
}
}

MailTest代码

public class MailTest {
static Logger logger = Logger.getLogger(MailTest.class);
/**
* @param args
*/
public static void main(String[] args) {
Properties props= new Properties();
Properties logProps= new Properties();
String configFile ="mailConfig.properties";
String logFile ="log4j-mail.properties";
try {
InputStream is = MailTest.class.getResourceAsStream(configFile);
InputStream isLog = MailTest.class.getResourceAsStream(logFile);
props.load(is);
logProps.load(isLog);
PropertyConfigurator.configure (logProps);
if(is!=null) is.close();
if(isLog!=null) isLog.close();
}
catch(Exception e) {
System.out.println(e+"file "+configFile+" or "+logFile+" not found");
logger.info(e+"file "+configFile+" or "+logFile+" not found");
}
String displayName=StringUtils.defaultString(props.getProperty("displayName")).trim();
String to=StringUtils.defaultString(props.getProperty("to")).trim();
String cc=StringUtils.defaultString(props.getProperty("cc")).trim();
String from=StringUtils.defaultString(props.getProperty("from")).trim();
String smtpServer=StringUtils.defaultString(props.getProperty("smtpServer")).trim();
String username=StringUtils.defaultString(props.getProperty("username")).trim();
String password=StringUtils.defaultString(props.getProperty("password")).trim();
String subject=StringUtils.defaultString(props.getProperty("subject")).trim();
String content=StringUtils.defaultString(props.getProperty("content")).trim();
String isAuth=StringUtils.defaultString(props.getProperty("isAuth")).trim();
String filePath =StringUtils.defaultString(props.getProperty("filePath")).trim();
String filePrefix =StringUtils.defaultString(props.getProperty("filePrefix")).trim();
String fileExt =StringUtils.defaultString(props.getProperty("fileExt")).trim();
MailUtils mail = new MailUtils();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");
Date today = new Date();
String todayStr = dateFormat.format(today);
File path = new File(filePath);
if (!path.isDirectory()) {
System.out.println("filePath "+filePath+"目录错误");
logger.info("filePath "+filePath+"目录错误");
return;
}
else if (path.isDirectory()) {
FilenameFilter filter = new FileFilter(todayStr+filePrefix,fileExt);
File[] files = path.listFiles(filter);
if(files.length==0){
System.out.println("attachment "+todayStr+filePrefix+"*."+fileExt+" is not exist");
logger.info("attachment "+todayStr+filePrefix+"*."+fileExt+" is not exist");
return;
}
for (int i = 0; i < files.length; i++) {
if (files[i].exists() && files[i].isFile()) {
System.out.println("attachmentpath=" + files[i].getAbsolutePath());
logger.info("attachmentpath=" + files[i].getAbsolutePath());
mail.addAttachfile(files[i]);
}
else{
System.out.println("attachment "+todayStr+filePrefix+"*."+fileExt+" is not exist or file");
logger.info("attachment "+todayStr+filePrefix+"*."+fileExt+" is not exist or file");
return;
}
}
}
if("true".equalsIgnoreCase(isAuth)){
mail.setAuth(true);
mail.setUserName(username);
mail.setPassword(password);
}
mail.setSmtpServer(smtpServer);
mail.setFrom(from);
mail.setTo(to);
mail.setCc(cc);
mail.setDisplayName(displayName);
mail.setSubject(subject);
mail.setContent(content);
Map map = mail.send();
if("false".equals(map.get("success"))){
System.out.println(map.get("message"));
logger.info(map.get("message"));
}else{
System.out.println("mail send success");
logger.info("mail send success");
}
}
}

log4j代码

log4j.rootLogger=INFO,A1
log4j.appender.A1=org.apache.log4j.RollingFileAppender
log4j.appender.A1.File=d:/McdReportMail/log/log-McdReport.log
log4j.appender.A1.MaxFileSize=2048KB
log4j.appender.A1.MaxBackupIndex=10
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%c][%L][%p] %m%n