发送电子邮件

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/** * 发送电子邮件 */public class SendMailUtil {    // private static final String smtphost = "192.168.1.70";    private static final String from = "thinkgem@163.com";    private static final String fromName = "测试公司";    private static final String charSet = "utf-8";    private static final String username = "thinkgem@163.com";    private static final String password = "123456";    private static Map<String, String> hostMap = new HashMap<String, String>();    static {        // 126        hostMap.put("smtp.126", "smtp.126.com");        // qq        hostMap.put("smtp.qq", "smtp.qq.com");        // 163        hostMap.put("smtp.163", "smtp.163.com");        // sina        hostMap.put("smtp.sina", "smtp.sina.com.cn");        // tom        hostMap.put("smtp.tom", "smtp.tom.com");        // 263        hostMap.put("smtp.263", "smtp.263.net");        // yahoo        hostMap.put("smtp.yahoo", "smtp.mail.yahoo.com");        // hotmail        hostMap.put("smtp.hotmail", "smtp.live.com");        // gmail        hostMap.put("smtp.gmail", "smtp.gmail.com");        hostMap.put("smtp.port.gmail", "465");    }    public static String getHost(String email) throws Exception {        Pattern pattern = Pattern.compile("\\w+@(\\w+)(\\.\\w+){1,2}");        Matcher matcher = pattern.matcher(email);        String key = "unSupportEmail";        if (matcher.find()) {            key = "smtp." + matcher.group(1);        }        if (hostMap.containsKey(key)) {            return hostMap.get(key);        } else {            throw new Exception("unSupportEmail");        }    }    public static int getSmtpPort(String email) throws Exception {        Pattern pattern = Pattern.compile("\\w+@(\\w+)(\\.\\w+){1,2}");        Matcher matcher = pattern.matcher(email);        String key = "unSupportEmail";        if (matcher.find()) {            key = "smtp.port." + matcher.group(1);        }        if (hostMap.containsKey(key)) {            return Integer.parseInt(hostMap.get(key));        } else {            return 25;        }    }    /**     * 发送模板邮件     *      * @param toMailAddr     *            收信人地址     * @param subject     *            email主题     * @param templatePath     *            模板地址     * @param map     *            模板map     */    public static void sendFtlMail(String toMailAddr, String subject,            String templatePath, Map<String, Object> map) {        Template template = null;        Configuration freeMarkerConfig = null;        HtmlEmail hemail = new HtmlEmail();        try {            hemail.setHostName(getHost(from));            hemail.setSmtpPort(getSmtpPort(from));            hemail.setCharset(charSet);            hemail.addTo(toMailAddr);            hemail.setFrom(from, fromName);            hemail.setAuthentication(username, password);            hemail.setSubject(subject);            freeMarkerConfig = new Configuration();            freeMarkerConfig.setDirectoryForTemplateLoading(new File(                    getFilePath()));            // 获取模板            template = freeMarkerConfig.getTemplate(getFileName(templatePath),                    new Locale("Zh_cn"), "UTF-8");            // 模板内容转换为string            String htmlText = FreeMarkerTemplateUtils                    .processTemplateIntoString(template, map);            System.out.println(htmlText);            hemail.setMsg(htmlText);            hemail.send();            System.out.println("email send true!");        } catch (Exception e) {            e.printStackTrace();            System.out.println("email send error!");        }    }    /**     * 发送普通邮件     *      * @param toMailAddr     *            收信人地址     * @param subject     *            email主题     * @param message     *            发送email信息     */    public static void sendCommonMail(String toMailAddr, String subject,            String message) {        HtmlEmail hemail = new HtmlEmail();        try {            hemail.setHostName(getHost(from));            hemail.setSmtpPort(getSmtpPort(from));            hemail.setCharset(charSet);            hemail.addTo(toMailAddr);            hemail.setFrom(from, fromName);            hemail.setAuthentication(username, password);            hemail.setSubject(subject);            hemail.setMsg(message);            hemail.send();            System.out.println("email send true!");        } catch (Exception e) {            e.printStackTrace();            System.out.println("email send error!");        }    }    public static String getHtmlText(String templatePath,            Map<String, Object> map) {        Template template = null;        String htmlText = "";        try {            Configuration freeMarkerConfig = null;            freeMarkerConfig = new Configuration();            freeMarkerConfig.setDirectoryForTemplateLoading(new File(                    getFilePath()));            // 获取模板            template = freeMarkerConfig.getTemplate(getFileName(templatePath),                    new Locale("Zh_cn"), "UTF-8");            // 模板内容转换为string            htmlText = FreeMarkerTemplateUtils.processTemplateIntoString(                    template, map);            System.out.println(htmlText);        } catch (Exception e) {            e.printStackTrace();        }        return htmlText;    }    private static String getFilePath() {        String path = getAppPath(SendMailUtil.class);        path = path + File.separator + "mailtemplate" + File.separator;        path = path.replace("\\", "/");        System.out.println(path);        return path;    }    private static String getFileName(String path) {        path = path.replace("\\", "/");        System.out.println(path);        return path.substring(path.lastIndexOf("/") + 1);    }//  @SuppressWarnings("unchecked")    public static String getAppPath(Class<?> cls) {        // 检查用户传入的参数是否为空        if (cls == null)            throw new java.lang.IllegalArgumentException("参数不能为空！");        ClassLoader loader = cls.getClassLoader();        // 获得类的全名，包括包名        String clsName = cls.getName() + ".class";        // 获得传入参数所在的包        Package pack = cls.getPackage();        String path = "";        // 如果不是匿名包，将包名转化为路径        if (pack != null) {            String packName = pack.getName();            // 此处简单判定是否是Java基础类库，防止用户传入JDK内置的类库            if (packName.startsWith("java.") || packName.startsWith("javax."))                throw new java.lang.IllegalArgumentException("不要传送系统类！");            // 在类的名称中，去掉包名的部分，获得类的文件名            clsName = clsName.substring(packName.length() + 1);            // 判定包名是否是简单包名，如果是，则直接将包名转换为路径，            if (packName.indexOf(".") < 0)                path = packName + "/";            else {// 否则按照包名的组成部分，将包名转换为路径                int start = 0, end = 0;                end = packName.indexOf(".");                while (end != -1) {                    path = path + packName.substring(start, end) + "/";                    start = end + 1;                    end = packName.indexOf(".", start);                }                path = path + packName.substring(start) + "/";            }        }        // 调用ClassLoader的getResource方法，传入包含路径信息的类文件名        java.net.URL url = loader.getResource(path + clsName);        // 从URL对象中获取路径信息        String realPath = url.getPath();        // 去掉路径信息中的协议名"file:"        int pos = realPath.indexOf("file:");        if (pos > -1)            realPath = realPath.substring(pos + 5);        // 去掉路径信息最后包含类文件信息的部分，得到类所在的路径        pos = realPath.indexOf(path + clsName);        realPath = realPath.substring(0, pos - 1);        // 如果类文件被打包到JAR等文件中时，去掉对应的JAR等打包文件名        if (realPath.endsWith("!"))            realPath = realPath.substring(0, realPath.lastIndexOf("/"));        /*------------------------------------------------------------          ClassLoader的getResource方法使用了utf-8对路径信息进行了编码，当路径           中存在中文和空格时，他会对这些字符进行转换，这样，得到的往往不是我们想要           的真实路径，在此，调用了URLDecoder的decode方法进行解码，以便得到原始的           中文及空格路径         -------------------------------------------------------------*/        try {            realPath = java.net.URLDecoder.decode(realPath, "utf-8");        } catch (Exception e) {            throw new RuntimeException(e);        }        System.out.println("realPath----->" + realPath);        return realPath;    }    // private static File getFile(String path){    // File file =    // SendMail.class.getClassLoader().getResource("mailtemplate/test.ftl").getFile();    // return file;    // }    //    public static void main(String[] args) {        // HtmlEmail hemail = new HtmlEmail();        // try {        // hemail.setHostName("smtp.exmail.qq.com");        // hemail.setCharset("utf-8");        // hemail.addTo("fly.1206@qq.com");        // hemail.setFrom("zhoujunfeng@et-bank.com", "周俊峰");        // hemail.setAuthentication("zhoujunfeng@et-bank.com", "31415926@aa");        // hemail.setSubject("sendemail test!");        // hemail.setMsg("http://www.google.cn\">谷歌
");        // hemail.send();        // System.out.println("email send true!");        // } catch (Exception e) {        // e.printStackTrace();        // System.out.println("email send error!");        // }        Map<String, Object> map = new HashMap<String, Object>();        map.put("subject", "测试标题");        map.put("content", "测试 内容");        String templatePath = "mailtemplate/test.ftl";        sendFtlMail("test@163.com", "sendemail test!", templatePath, map);        // System.out.println(getFileName("mailtemplate/test.ftl"));    }}
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