java發(fā)送郵件及郵件附件代碼實(shí)例

1、packagecom.zlz3907.mail;importjava.io.BufferedReader;importjava.io.File;importjava.io.FileInputStream;importjava.io.FileNotFoundException;importjava.io.IOException;importjava.io.InputStream;importjava.io.InputStreamReader;importjava.io.PrintWriter;importjava.io.UnsupportedEncodingException;.Socket;i

2、mportjava.nio.charset.Charset;importjava.text.SimpleDateFormat;importjava.util.ArrayList;importjava.util.Date;importjava.util.HashMap;importjava.util.List;importjava.util.Map;importsun.misc.BASE64Encoder;/值為true"則在發(fā)送郵件linkMail#send()過(guò)程中會(huì)讀取服務(wù)器端返回的消息，并在郵件發(fā)送完畢后將這些消息返回給用戶。*該類使用Socket連接到郵件服務(wù)器，*并實(shí)現(xiàn)了向

3、指定郵箱發(fā)送郵件及附件的功能。*authorZhongLizhi*/publicclassMail(*換行符*/*privatestaticfinalStringLINE_END="rn"值為true”輸出高度信息(包括服務(wù)器響應(yīng)信息)，值為“*false”則不輸出調(diào)試信息。*/*privatebooleanisDebug=true;*/privatebooleanisAllowReadSocketInfo=true;/*郵件服務(wù)器地址*/privateStringhost;/*發(fā)件人郵箱地址*/privateStringfrom;/*收件人郵箱地址*/privateLis

4、t<String>to;/*抄送地址*/privateList<String>cc;/*暗送地址*/privateList<String>bcc;/*郵件主題*/privateStringsubject;/*用戶名*/privateStringuser;/*密碼*/privateStringpassword;/*MIME郵件類型*/privateStringcontentType;/*用來(lái)綁定多個(gè)郵件單元link#partSet的分隔標(biāo)識(shí)，我們可以將郵件的正文及每一個(gè)附件都看作是一個(gè)郵件單元*/privateStringboundary;/*郵件單元分隔標(biāo)識(shí)

5、符，該屬性將用來(lái)在郵件中作為分割各個(gè)郵件單元的標(biāo)識(shí)*O*/privateStringboundaryNextPart;/*傳輸郵件所采用的編碼*/privateStringcontentTransferEncoding;/*設(shè)置郵件正文所用的字符集*/privateStringcharset;/*內(nèi)容描述*/privateStringcontentDisposition;/*郵件正文*/privateStringcontent;/*發(fā)送郵件日期的顯示格式*/privateStringsimpleDatePattern;/*附件的默認(rèn)MIME類型*/*privateStringdefaultAt

6、tachmentContentType;郵件單元的集合，用來(lái)存放正文單元和所有的附件單元。* */privateList<MailPart>partSet;/authorZhongLizhi*/privateclassMailPartextendsMail不同類型文件對(duì)應(yīng)的linkMIME類型映射。在添加附件link#addAttachment(String)時(shí)，程序會(huì)在這個(gè)映射中查找對(duì)應(yīng)文件的linkMIME* 類型，如果沒(méi)有，則使用link#defaultAttachmentContentType所定義的類型。*/privatestaticMap<String,Strin

7、g>contentTypeMap;static/MIMEMediaTypescontentTypeMap=newHashMap<String,String>();contentTypeMap.put("xls”,"application/vnd.ms-excel");contentTypeMap.put("xlsx”,"application/vnd.ms-excel");contentTypeMap.put("xlsm","application/vnd.ms-excel")

8、;contentTypeMap.put("xlsb”,"application/vnd.ms-excel");contentTypeMap.put("doc","application/msword");contentTypeMap.put("dot","application/msword");contentTypeMap.put("docx","application/msword");contentTypeMap.put("doc

9、m","application/msword");* contentTypeMap.put("dotm","application/msword");/*該類用來(lái)實(shí)例化一個(gè)正文單元或附件單元對(duì)象，他繼承了linkMail,在這里制作這個(gè)子類主要是為了區(qū)別郵件單元對(duì)象和郵件服務(wù)對(duì)象partSet時(shí)，程序會(huì)調(diào)用，使程序易讀一些。這些郵件單元全部會(huì)放到中，在發(fā)送郵件link#send()link#getAllParts()* 方法將所有的單元合并成一個(gè)符合MIME式的字符串。publicMailPart()(/*默認(rèn)構(gòu)造函數(shù)*/p

10、ublicMail()(defaultAttachmentContentType="application/octet-stream"simpleDatePattern="yyyy-MM-ddHH:mm:ss”;boundary="-=_NextPart_zlz_3907_"+System.currentTimeMillis();boundaryNextPart="-"+boundary;contentTransferEncoding="base64"contentType="multipart

11、/alternative"charset=Charset.defaultCharset().name();partSet=newArrayList<MailPart>();to=newArrayList<String>();cc=newArrayList<String>();* bcc=newArrayList<String>();/*根據(jù)指定的完整文件名在link#contentTypeMap中查找其相應(yīng)的MIME類型，如果沒(méi)找到，則返回link#defaultAttachmentContentType* paramfileName*

12、 文件名返回文件對(duì)應(yīng)的MIME類型。所指定的默認(rèn)類型。*return*/privateStringgetPartContentType(StringfileName)(Stringret=null;if(null!=fileName)(intflag=fileName.lastIndexOf(".");if(0<=flag&&flag<fileName.length()-1)(fileName=fileName.substring(flag+1);ret=contentTypeMap.get(fileName);if(null=ret)(ret=

13、defaultAttachmentContentType;returnret;/*將給定字符串轉(zhuǎn)換為base64編碼的字符串paramstr需要轉(zhuǎn)碼的字符串paramcharset原字符串的編碼格式returnbase64編碼格式的字符*/privateStringtoBase64(Stringstr,Stringcharset)(if(null!=str)(try(returntoBase64(str.getBytes(charset);catch(UnsupportedEncodingExceptione)(e.printStackTrace();return""/re

14、turntoBase64(str,Charset.defaultCharset().name();*parambs*將指定的字節(jié)數(shù)組轉(zhuǎn)換為base64格式的字符串需要轉(zhuǎn)碼的字節(jié)數(shù)組*returnbase64編碼格式的字符*/privateStringtoBase64(bytebs)(* returnnewBASE64Encoder().encode(bs);/*paramstr*將給定字符串轉(zhuǎn)換為base64編碼的字符串/*將所有的郵件單元按照標(biāo)準(zhǔn)的MIME格式要求合并。* *return返回一個(gè)所有單元合并后的字符串。*/privateStringgetAllParts()(intpartC

15、ount=partSet.size();StringBuildersbd=newStringBuilder(LINE_END);for(inti=partCount-1;i>=0;i-)(Mailattachment=partSet.get(i);StringattachmentContent=attachment.getContent();if(null!=attachmentContent&&0<attachmentContent.length()(sbd.append(getBoundaryNextPart().append(LINE_END);sbd.app

16、end("Content-Type:");sbd.append(attachment.getContentType();sbd.append(LINE_END);sbd.append("Content-Transfer-Encoding:");sbd.append(attachment.getContentTransferEncoding();sbd.append(LINE_END);if(i!=partCount-1)(sbd.append("Content-Disposition:");sbd.append(attachment.

17、getContentDisposition();sbd.append(LINE_END);sbd.append(LINE_END);sbd.append(attachment.getContent();sbd.append(LINE_END);sbd.append(LINE_END);sbd.append(LINE_END);/sbd.append(boundaryNextPart)./append(LINE_END);partSet.clear();returnsbd.toString();/*添加郵件正文單元*/privatevoidaddContent()(if(null!=conten

18、t)(MailPartpart=newMailPart();part.setContent(toBase64(content);part.setContentType("text/plain;charset=""+charset+""");partSet.add(part);privateStringlistToMailString(List<String>mailAddressList)(StringBuildersbd=newStringBuilder();if(null!=mailAddressList)(intli

19、stSize=mailAddressList.size();for(inti=0;i<listSize;i+)(if(0!=i)(sbd.append("");sbd.append("<").append(mailAddressList.get(i).append(">");returnsbd.toString();privateList<String>getrecipient()(List<String>list=newArrayList<String>();list.addAl

20、l(to);list.addAll(cc);list.addAll(bcc);returnlist;/*添加一個(gè)附件單元*paramfilePath文件路徑*/publicvoidaddAttachment(StringfilePath)(addAttachment(filePath,null);publicvoidaddTo(StringmailAddress)(this.to.add(mailAddress);publicvoidaddCc(StringmailAddress)(this.cc.add(mailAddress);publicvoidaddBcc(StringmailAddr

21、ess)(this.bcc.add(mailAddress);/* paramfileName文件名paramattachmentStream文件流paramcharset文件編碼格式*/publicvoidaddAttachment(StringfileName,InputStreamattachmentStream,Stringcharset)(try(*添加一個(gè)附件單元paramfilePath文件路徑paramcharset文件編碼格式*/publicvoidaddAttachment(StringfilePath,Stringcharset)(if(null!=filePath&am

22、p;&filePath.length()>0)(Filefile=newFile(filePath);try(addAttachment(file.getName(),newFileInputStream(file),charset);catch(FileNotFoundExceptione)(System.out.println("錯(cuò)誤：”+e.getMessage();System.exit(1);/*添加一個(gè)附件單元bytebs=null;if(null!=attachmentstream)(intbuffSize=1024;bytebuff=newbytebuf

23、fSize;bytetemp;bs=newbyte0;intreadTotal=0;while(-1!=(readTotal=attachmentStream.read(buff)(temp=newbytebs.length;System.arraycopy(bs,0,temp,0,bs.length);bs=newbytetemp.length+readTotal;System.arraycopy(temp,0,bs,0,temp.length);System.arraycopy(buff,0,bs,temp.length,readTotal);if(null!=bs)(MailPartat

24、tachmentPart=newMailPart();charset=null!=charset?charset:Charset.defaultCharset().name();StringcontentType=getPartContentType(fileName)+"name="=?"+charset+"?B?”+toBase64(fileName)"?="”attachmentPart.setCharset(charset);attachmentPart.setContentType(contentType);attachme

25、ntPart.setContentDisposition("attachment;filename="=?+charset+"?B?”+toBase64(fileName)+"?="");attachmentPart.setContent(toBase64(bs);partSet.add(attachmentPart);catch(Exceptione)(e.printStackTrace();finally(if(null!=attachmentStream)(try(attachmentStream.close();attachm

26、entStream=null;catch(IOExceptione)(e.printStackTrace();Runtime.getRuntime().gc();Runtime.getRuntime().runFinalization();發(fā)送郵件*return郵件服務(wù)器反回的信息*/publicStringsend()/對(duì)象申明/當(dāng)郵件發(fā)送完畢后，以下三個(gè)對(duì)象(Socket、/PrintWriter,/BufferedReader)需要關(guān)閉。Socketsocket=null;PrintWriterpw=null;BufferedReaderbr=null;trysocket=newSock

27、et(host,25);pw=newPrintWriter(socket.getOutputStream();br=newBufferedReader(newInputStreamReader(socket.getInputStream();StringBuilderinfoBuilder=newStringBuilder("nServerinfo:nn");/與服務(wù)器建立連接pw.write("HELO”.concat(host).concat(LINE_END);/連接到郵件服務(wù)if(!readResponse(pw,br,infoBuilder,"

28、220”)returninfoBuilder.toString();pw.write("AUTHLOGIN”.concat(LINE_END);/登錄if(!readResponse(pw,br,infoBuilder,"250”)returninfoBuilder.toString();pw.write(toBase64(user).concat(LINE_END);/輸入用戶名if(!readResponse(pw,br,infoBuilder,”334”)returninfoBuilder.toString();pw.write(toBase64(password).

29、concat(LINE_END);/輸入密碼if(!readResponse(pw,br,infoBuilder,”334”)returninfoBuilder.toString();pw.write("MAILFROM:<"+from+">"+LINE_END);/發(fā)件人郵箱地址if(!readResponse(pw,br,infoBuilder,"235”)returninfoBuilder.toString();List<String>recipientList=getrecipient();/收件郵箱地址for(

30、inti=0;i<recipientList.size();i+)(pw.write("RCPTTO:<"+recipientList.get(i)+">"+LINE_END);if(!readResponse(pw,br,infoBuilder,"250")returninfoBuilder.toString();/System.out.println(/getAllSendAddress();pw.write("DATA"+LINE_END);/開(kāi)始輸入郵件if(!readResponse(p

31、w,br,infoBuilder,"250")returninfoBuilder.toString();flush(pw);/設(shè)置郵件頭信息StringBuffersbf=newStringBuffer("From:<"+from+">"+LINE_END);/發(fā)件人sbf.append("To:"+listToMailString(to)+LINE_END);/收件人sbf.append("Cc:"+listToMailString(cc)+LINE_END);/收件人sbf.ap

32、pend("Bcc:"+listToMailString(bcc)+LINE_END);/收件人sbf.append("Subject:"+subject+LINE_END);/郵件主題SimpleDateFormatsdf=newSimpleDateFormat(simpleDatePattern);sbf.append("Date:").append(sdf.format(newDate();sbf.append(LINE_END);/發(fā)送時(shí)間sbf.append("Content-Type:");sbf.ap

33、pend(contentType);sbf.append("");sbf.append("boundary="");sbf.append(boundary).append(""");/郵件類型設(shè)置sbf.append(LINE_END);sbf.append("Thisisamulti-partmessageinMIMEformat.");sbf.append(LINE_END);/添加郵件正文單元addContent();/合并所有單元，正文和附件。sbf.append(getAllParts

34、();/發(fā)送sbf.append(LINE_END).append(".”).append(LINE_END);pw.write(sbf.toString();readResponse(pw,br,infoBuilder,"354”);flush(pw);/QUIT退出pw.write("QUIT"+LINE_END);if(!readResponse(pw,br,infoBuilder,"250")returninfoBuilder.toString();flush(pw);returninfoBuilder.toString();

35、catch(Exceptione)(e.printStackTrace();return"Exception:"+e.getMessage();finally(/釋放資源try(if(null!=socket)socket.close();if(null!=pw)pw.close();if(null!=br)br.close();catch(IOExceptione)(e.printStackTrace();/this.to.clear();/this.cc.clear();/this.bcc.clear();this.partSet.clear();/parampw* 郵

36、件服務(wù)器輸入流將SMT肺令發(fā)送到郵件服務(wù)器*/privatevoidflush(PrintWriterpw)(if(!isAllowReadSocketInfo)(pw.flush();/*讀取郵件服務(wù)器的響應(yīng)信息parampw郵件服務(wù)器輸入流parambr郵件服務(wù)器輸出流paraminfoBuilder用來(lái)存放服務(wù)器響應(yīng)信息的字符串緩沖parammsgCodereturnthrowsIOException*/privatebooleanreadResponse(PrintWriterpw,BufferedReaderbr,StringBuilderinfoBuilder,StringmsgC

37、ode)throwsIOException(if(isAllowReadSocketInfo)(pw.flush();Stringmessage=br.readLine();infoBuilder.append("SERVER:/>”);infoBuilder.append(message).append(LINE_END);if(null=message|0>message.indexOf(msgCode)(System.out.println("ERROR:"+message);pw.write("QUIT”.concat(LINE_EN

38、D);pw.flush();returnfalse;if(isDebug)(System.out.println("DEBUG:/>"+msgCode+"/"+message);returntrue;publicStringgetBoundaryNextPart()(returnboundaryNextPart;publicvoidsetBoundaryNextPart(StringboundaryNextPart)(this.boundaryNextPart=boundaryNextPart;publicStringgetDefaultAttac

39、hmentContentType()(returndefaultAttachmentContentType;publicvoidsetDefaultAttachmentContentType(StringdefaultAttachmentContentType)(this.defaultAttachmentContentType=defaultAttachmentContentType;publicStringgetHost()(returnhost;publicvoidsetHost(Stringhost)(this.host=host;publicStringgetFrom()(retur

40、nfrom;publicvoidsetFrom(Stringfrom)(this.from=from;publicList<String>getTo()(returnto;publicvoidsetTo(List<String>to)(this.to=to;publicStringgetSubject()(returnsubject;publicvoidsetSubject(Stringsubject)(this.subject=subject;publicStringgetUser()(returnuser;publicvoidsetUser(Stringuser)(

41、this.user=user;publicStringgetPassword()(returnpassword;publicvoidsetPassword(Stringpassword)(this.password=password;publicStringgetContentType()(returncontentType;publicvoidsetContentType(StringcontentType)(this.contentType=contentType;publicStringgetBoundary()(returnboundary;publicvoidsetBoundary(

42、Stringboundary)(this.boundary=boundary;publicStringgetContentTransferEncoding()(returncontentTransferEncoding;publicvoidsetContentTransferEncoding(StringcontentTransferEncoding)(this.contentTransferEncoding=contentTransferEncoding;publicStringgetCharset()(returncharset;publicvoidsetCharset(Stringcha

43、rset)(this.charset=charset;publicStringgetContentDisposition()(returncontentDisposition;publicvoidsetContentDisposition(StringcontentDisposition)(this.contentDisposition=contentDisposition;publicStringgetSimpleDatePattern()returnsimpleDatePattern;publicvoidsetSimpleDatePattern(StringsimpleDatePatter

44、n)this.simpleDatePattern=simpleDatePattern;publicStringgetContent()returncontent;publicvoidsetContent(Stringcontent)this.content=content;publicbooleanisAllowReadSocketInfo()returnisAllowReadSocketInfo;publicvoidsetAllowReadSocketInfo(booleanisAllowReadSocketInfo)this.isAllowReadSocketInfo=isAllowRea

45、dSocketInfo;/*paramargs*/publicstaticvoidmain(Stringargs)/應(yīng)用示例：線程化發(fā)送郵件newThread()Overridepublicvoidrun()(System.out.println("SENDER-"+this.getId()+":/>”+"開(kāi)始發(fā)送郵件.")；/創(chuàng)建郵件對(duì)象Mailmail=newMail();mail.setHost("");/郵件服務(wù)器地址mail.setFrom("sender");/發(fā)件人郵箱mail.add

46、To("recipient");/收件人郵箱mail.addCc("test”);mail.addBcc("test”);mail.setSubject("CCTestMail!");/郵件主題mail.setUser("123");/用戶名mail.setPassword("123”);/密碼mail.setContent("這是個(gè)測(cè)試，請(qǐng)不要回復(fù)！");/郵件正文mail.addAttachment("utf8中.txt");/添加附件/mail.addAtta

47、chment(/"e:/test.htm");/添加附件System.out.println(mail.send();/發(fā)送System.out.println("SENDER-"+this.getId()+":/>"+"郵件已發(fā)送完畢！");.start();publicclassBASE64Encoder(privatestaticcharcodec_table=('A','B','C','D','E','F','G','H','I','J','K','L&