java发送邮件基于SSL安全协议，dos测试成功发送

1.问题背景

项目中应用到发送邮件服务，基于ssl安全协议，公司自己邮件服务器发送邮件。在部署项目到生产服务器时候，发送邮件失败。寻找发送邮件失败原因时候，决定在dos命令中单独执行发送邮件类，判断是否是发送端口，或者发送协议配置错误。

2.解决问题

1.发送邮件类中代码

import java.util.Properties;import javax.mail.Authenticator;import javax.mail.Message;import javax.mail.PasswordAuthentication;import javax.mail.Session;import javax.mail.Transport;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMessage;import com.sun.mail.util.MailSSLSocketFactory;public class TestSecurity {public static void main(String args[]) throws Exception {//邮箱服务器地址String host = "smtpav.travelsky.com";//发送者邮箱final String from = "*********";//接收者密码String to = "*******@qq.com";、//发送者邮箱密码，可通过配置省去final String pwd = "******";// 声明属性对象Properties props = System.getProperties();//指定基于SSL安全协议发送邮件final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";props.put("mail.transport.protocol", "smtp");props.put("mail.smtp.socketFactory.class", SSL_FACTORY);props.put("mail.smtp.socketFactory.fallback", "false");//SSl安全协议指定的端口props.put("mail.smtp.port", "465");props.put("mail.smtp.socketFactory.port", "465");props.put("mail.smtp.auth", "true");props.put("mail.smtp.host", host);//安全认证代码，如果没有此段代码，则需要生成安全认证文件，放入指定目录MailSSLSocketFactory sf = null;try {sf = new MailSSLSocketFactory();} catch (Exception e) {}sf.setTrustAllHosts(true);props.put("mail.smtp.ssl.enable","true");props.put("mail.smtp.ssl.socketFactory", sf);//加载发送邮件信息Session session = Session.getDefaultInstance(props, new javax.mail.Authenticator() {protected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(from, pwd);}});//声明信息MimeMessage message = new MimeMessage(session);//赋值起止邮箱message.setFrom(new InternetAddress(from));//赋值接收邮箱message.addRecipient(Message.RecipientType.TO, new InternetAddress(to));//赋值主题message.setSubject("aa");//赋值内容message.setText("AAAA");message.saveChanges();Transport.send(message);}} 

2.需要单独引入三个jar包

3.管理员身份启动dos窗口

进入到发送邮件类目录下，当然我的目录在桌面abc文件夹下。

键入运行java 文件命令

注：“-cp” 含义 赋值系统classPath环境变量。不同架包中，一定要用 “;”隔开。最后的架包与 .java文件 没有分隔符

如果没有报错，会生成对象.class文件

然后直接运行class文件

成功发送邮件。

3.问题所需素材

1.jar包

http://download.csdn.net/detail/weixin_38699282/9860803

 

2.dos中输入命令

javac -cp .;activation.jar;javaee.jar;javax.mail.jar TestSecurity.java

3.关于发送邮件失败问题，可能是security 认证不通过

如下两种认证方式

1.通过“安装证书”生成安全文件，放入到 java_home/jre/lib/security 目录下即可

package com.travelsky.core.utils;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStream;import java.security.KeyStore;import java.security.MessageDigest;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import javax.net.ssl.SSLContext;import javax.net.ssl.SSLException;import javax.net.ssl.SSLSocket;import javax.net.ssl.SSLSocketFactory;import javax.net.ssl.TrustManager;import javax.net.ssl.TrustManagerFactory;import javax.net.ssl.X509TrustManager;/** * @author xulidong * @date Create on 2016-5-18 下午4:09:47 * @version  1.0 *  */public class InstallCert {      public static void main(String[] args) throws Exception {          String host = "smtpav.travelsky.com";  //选择自己使用的邮箱服务器        int port = 465;          char[] passphrase = new String("changeit").toCharArray();  //        if ((args.length == 1) || (args.length == 2)) {  //            String[] c = args[0].split(":");  //            host = c[0];  //            port = (c.length == 1) ? 443 : Integer.parseInt(c[1]);  //            String p = (args.length == 1) ? "changeit" : args[1];  //            passphrase = p.toCharArray();  //        } else {  //            System.out  //                    .println("Usage: java InstallCert [:port] [passphrase]");  //            return;  //        }                  File file = new File("jssecacerts");          if (file.isFile() == false) {              char SEP = File.separatorChar;              File dir = new File(System.getProperty("java.home") + SEP + "lib"                      + SEP + "security");              file = new File(dir, "jssecacerts");              if (file.isFile() == false) {                  file = new File(dir, "cacerts");              }          }          System.out.println("Loading KeyStore " + file + "...");          InputStream in = new FileInputStream(file);          KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());          ks.load(in, passphrase);          in.close();            SSLContext context = SSLContext.getInstance("TLS");          TrustManagerFactory tmf = TrustManagerFactory                  .getInstance(TrustManagerFactory.getDefaultAlgorithm());          tmf.init(ks);          X509TrustManager defaultTrustManager = (X509TrustManager) tmf                  .getTrustManagers()[0];          SavingTrustManager tm = new SavingTrustManager(defaultTrustManager);          context.init(null, new TrustManager[] { tm }, null);          SSLSocketFactory factory = context.getSocketFactory();            System.out                  .println("Opening connection to " + host + ":" + port + "...");          SSLSocket socket = (SSLSocket) factory.createSocket(host, port);          socket.setSoTimeout(10000);          try {              System.out.println("Starting SSL handshake...");              socket.startHandshake();              socket.close();              System.out.println();              System.out.println("No errors, certificate is already trusted");          } catch (SSLException e) {              System.out.println();              e.printStackTrace(System.out);          }            X509Certificate[] chain = tm.chain;          if (chain == null) {              System.out.println("Could not obtain server certificate chain");              return;          }            BufferedReader reader = new BufferedReader(new InputStreamReader(                  System.in));            System.out.println();          System.out.println("Server sent " + chain.length + " certificate(s):");          System.out.println();          MessageDigest sha1 = MessageDigest.getInstance("SHA1");          MessageDigest md5 = MessageDigest.getInstance("MD5");          for (int i = 0; i < chain.length; i++) {              X509Certificate cert = chain[i];              System.out.println(" " + (i + 1) + " Subject "                      + cert.getSubjectDN());              System.out.println("   Issuer  " + cert.getIssuerDN());              sha1.update(cert.getEncoded());              System.out.println("   sha1    " + toHexString(sha1.digest()));              md5.update(cert.getEncoded());              System.out.println("   md5     " + toHexString(md5.digest()));              System.out.println();          }            System.out                  .println("Enter certificate to add to trusted keystore or 'q' to quit: [1]");          String line = reader.readLine().trim();          int k;          try {              k = (line.length() == 0) ? 0 : Integer.parseInt(line) - 1;          } catch (NumberFormatException e) {              System.out.println("KeyStore not changed");              return;          }            X509Certificate cert = chain[k];          String alias = host + "-" + (k + 1);          ks.setCertificateEntry(alias, cert);            OutputStream out = new FileOutputStream("jssecacerts");          ks.store(out, passphrase);          out.close();            System.out.println();          System.out.println(cert);          System.out.println();          System.out                  .println("Added certificate to keystore 'jssecacerts' using alias '"                          + alias + "'");      }        private static final char[] HEXDIGITS = "0123456789abcdef".toCharArray();        private static String toHexString(byte[] bytes) {          StringBuilder sb = new StringBuilder(bytes.length * 3);          for (int b : bytes) {              b &= 0xff;              sb.append(HEXDIGITS[b >> 4]);              sb.append(HEXDIGITS[b & 15]);              sb.append(' ');          }          return sb.toString();      }        private static class SavingTrustManager implements X509TrustManager {            private final X509TrustManager tm;          private X509Certificate[] chain;            SavingTrustManager(X509TrustManager tm) {              this.tm = tm;          }            public X509Certificate[] getAcceptedIssuers() {              throw new UnsupportedOperationException();          }            public void checkClientTrusted(X509Certificate[] chain, String authType)                  throws CertificateException {              throw new UnsupportedOperationException();          }            public void checkServerTrusted(X509Certificate[] chain, String authType)                  throws CertificateException {              this.chain = chain;              tm.checkServerTrusted(chain, authType);          }      }  }

2.使用MailSSLSocketFactory 类实现安全的认证

4.收集大家的意见

欢迎大家指出不足。