java HtmlEmail發送郵件工具類

package com.sh.xrsite.common.utils;

import java.io.File;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.mail.HtmlEmail;
import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;

import freemarker.template.Configuration;
import freemarker.template.Template;

/**
 * 發送電子郵件
 */
public class SendMailUtil {

    // private static final String smtphost = "192.168.1.70";
    private static final String from = "[e-mail]";
    private static final String fromName = "測試公司";
    private static final String charSet = "utf-8";
    private static final String username = "[e-mail]";
    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;
        }
    }

    /**
     * 發送模板郵件
     * 
     * @param toMailAddr
     *            收信人地址
     * @param subject
     *            email主題
     * @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()));
            // 獲取模板
            template = freeMarkerConfig.getTemplate(getFileName(templatePath),
                    new Locale("Zh_cn"), "UTF-8");
            // 模板內容轉換為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!");
        }
    }

    /**
     * 發送普通郵件
     * 
     * @param toMailAddr
     *            收信人地址
     * @param subject
     *            email主題
     * @param message
     *            發送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()));
            // 獲取模板
            template = freeMarkerConfig.getTemplate(getFileName(templatePath),
                    new Locale("Zh_cn"), "UTF-8");
            // 模板內容轉換為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) {
        // 檢查用戶傳入的參數是否為空
        if (cls == null)
            throw new java.lang.IllegalArgumentException("參數不能為空！");
        ClassLoader loader = cls.getClassLoader();
        // 獲得類的全名，包括包名
        String clsName = cls.getName() + ".class";
        // 獲得傳入參數所在的包
        Package pack = cls.getPackage();
        String path = "";
        // 如果不是匿名包，將包名轉化為路徑
        if (pack != null) {
            String packName = pack.getName();
            // 此處簡單判定是否是Java基礎類庫，防止用戶傳入JDK內置的類庫
            if (packName.startsWith("java.") || packName.startsWith("javax."))
                throw new java.lang.IllegalArgumentException("不要傳送系統類！");
            // 在類的名稱中，去掉包名的部分，獲得類的文件名
            clsName = clsName.substring(packName.length() + 1);
            // 判定包名是否是簡單包名，如果是，則直接將包名轉換為路徑，
            if (packName.indexOf(".") < 0)
                path = packName + "/";
            else {// 否則按照包名的組成部分，將包名轉換為路徑
                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) + "/";
            }
        }
        // 調用ClassLoader的getResource方法，傳入包含路徑信息的類文件名
        java.net.URL url = loader.getResource(path + clsName);
        // 從URL對象中獲取路徑信息
        String realPath = url.getPath();
        // 去掉路徑信息中的協議名"file:"
        int pos = realPath.indexOf("file:");
        if (pos > -1)
            realPath = realPath.substring(pos + 5);
        // 去掉路徑信息最后包含類文件信息的部分，得到類所在的路徑
        pos = realPath.indexOf(path + clsName);
        realPath = realPath.substring(0, pos - 1);
        // 如果類文件被打包到JAR等文件中時，去掉對應的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對路徑信息進行了編碼，當路徑 
          中存在中文和空格時，他會對這些字符進行轉換，這樣，得到的往往不是我們想要 
          的真實路徑，在此，調用了URLDecoder的decode方法進行解碼，以便得到原始的 
          中文及空格路徑 
        -------------------------------------------------------------*/
        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.163.com");
         hemail.setCharset("utf-8");
         hemail.addTo("收件郵箱地址");
         hemail.setFrom("發件郵箱地鐵", "網易");
         hemail.setAuthentication("[e-mail]", "發件郵箱密碼");
         hemail.setSubject("sendemail test!");
         hemail.setMsg("<a href=\"http://www.google.cn\">谷歌</a><br/>");
         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", "測試標題");
//        map.put("content", "測試 內容");
//        String templatePath = "mailtemplate/test.ftl";
//        sendFtlMail("[e-mail]", "sendemail test!", templatePath, map);

        // System.out.println(getFileName("mailtemplate/test.ftl"));
    }

}