java郵件發送和短信發送（二）

上次介紹了基於Velocity模板java郵件發送，這次我們對程序做了一次重構，實現的是根據相應的請求發送郵件或者短信。

首先我們來定義一個頂層消息接口：

/**
* 功能: 系統消息發送服務
* 用法:
* @version 1.0
*/
public interface MessageService {
/**
* 根據消息模板表中的消息編號取得消息模板，填充，發送
*
* @param bmtCode 消息模板表中的消息編號
* @param params 填充模板內容的參數
* @param to 消息的接收人
* @throws CheckException 模板不存在，或是發送消息出現異常
*/
public void sendMessage(String bmtCode,Map params, String... to) throws CheckException;
}

接着我們實現該接口：

public class MessageServiceImpl implements MessageService{
/**
* Logger for this class
*/
private static final Logger logger = Logger.getLogger(MessageServiceImpl.class);
@Autowired
private BaseMessageTempletDAO baseMessageTempletDAO;
@Autowired
private SenderFactory senderFactory;
@Override
public void sendMessage(String bmtCode, Map params, String... to)
throws CheckException {
// 檢查參數
if (StringUtils.isEmpty(bmtCode) || ArrayUtils.isEmpty(to)){
throw new CheckException("模板編號不能爲空，或消息的接收人不能爲空");
}
// 從數據庫取出模板
BaseMessageTempletEO queryParam = new BaseMessageTempletEO();
queryParam.setBmtCode(bmtCode);
BaseMessageTempletEO template = null;
try {
template = baseMessageTempletDAO.selectEOByEO(queryParam);
} catch (Exception e) {
// 查詢失敗
logger.error("查詢模板:" + bmtCode + " 時發生異常", e);
throw new CheckException(e);
}
// 檢查模板是否存在
if (template == null){
logger.info("編號爲: " + bmtCode + " 的消息模板不存在.");
throw new CheckException("編號爲: " + bmtCode + " 的消息模板不存在.");
}
// 檢查消息類型
String msgType = template.getBmtType();
if (StringUtils.isEmpty(msgType)){
logger.info("編號爲: " + bmtCode + " 的消息模板消息類型未知.");
throw new CheckException("編號爲: " + bmtCode + " 的消息模板消息類型未知，無法發送.");
}
// 解析標題
String title = null;
if (StringUtils.isNotEmpty(template.getBmtTitle()) && params != null){
try {
title = VelocityParserUtil.getInstance().parseVelocityTemplate(template.getBmtTitle(),params);
} catch (Exception e) {
logger.error("編號爲: " + bmtCode + " 的消息模板解析 <標題 > 時失敗");
throw new CheckException(e);
}
}
// 解析內容
String content = null;
if (StringUtils.isNotEmpty(template.getBmtContent()) && params != null){
try {
content = VelocityParserUtil.getInstance().parseVelocityTemplate(template.getBmtContent(),params);
} catch (Exception e) {
logger.error("編號爲: " + bmtCode + " 的消息模板解析 <內容> 時失敗");
throw new CheckException(e);
}
}
// 發送
Sender sender = senderFactory.getSender(msgType);
if (sender == null){
// 找不到對應類型的發送器
logger.error("編號爲: " + bmtCode + " 的消息模板，類型爲: " + msgType + " 沒有對應的消息發送器");
throw new CheckException("編號爲: " + bmtCode + " 的消息模板，類型爲: " + msgType + " 沒有對應的消息發送器");
}
sender.sender(title, content, to);
}
}

public class MessageServiceImpl implements MessageService{
	/**
	 * Logger for this class
	 */
	private static final Logger logger = Logger.getLogger(MessageServiceImpl.class);

@Autowired
	private BaseMessageTempletDAO baseMessageTempletDAO;
 
 @Autowired
	private SenderFactory senderFactory;
	
	@Override
	public void sendMessage(String bmtCode, Map params, String... to)
			throws CheckException {
		// 檢查參數
		if (StringUtils.isEmpty(bmtCode) || ArrayUtils.isEmpty(to)){
			throw new CheckException("模板編號不能爲空，或消息的接收人不能爲空");
		}
		
		// 從數據庫取出模板
		BaseMessageTempletEO queryParam = new BaseMessageTempletEO();
		queryParam.setBmtCode(bmtCode); 
		
		BaseMessageTempletEO template = null;
		try {
			template = baseMessageTempletDAO.selectEOByEO(queryParam);
		} catch (Exception e) {
			// 查詢失敗
		 logger.error("查詢模板:" + bmtCode + " 時發生異常", e);
		 throw new CheckException(e);
		}
		// 檢查模板是否存在
		if (template == null){
			logger.info("編號爲: " + bmtCode + " 的消息模板不存在.");
			throw new CheckException("編號爲: " + bmtCode + " 的消息模板不存在.");
		}
		
		// 檢查消息類型
		String msgType = template.getBmtType();
		if (StringUtils.isEmpty(msgType)){
			logger.info("編號爲: " + bmtCode + " 的消息模板消息類型未知.");
			throw new CheckException("編號爲: " + bmtCode + " 的消息模板消息類型未知，無法發送.");
		}
		
		
		// 解析標題
		String title = null;
		if (StringUtils.isNotEmpty(template.getBmtTitle()) && params != null){
			try {
				title = VelocityParserUtil.getInstance().parseVelocityTemplate(template.getBmtTitle(),params);
			} catch (Exception e) {
				logger.error("編號爲: " + bmtCode + " 的消息模板解析 <標題 > 時失敗");
				throw new CheckException(e);
			}
		}
		// 解析內容
		String content = null;
		if (StringUtils.isNotEmpty(template.getBmtContent()) && params != null){
			try {
				content = VelocityParserUtil.getInstance().parseVelocityTemplate(template.getBmtContent(),params);
			} catch (Exception e) {
				logger.error("編號爲: " + bmtCode + " 的消息模板解析 <內容> 時失敗");
				throw new CheckException(e);
			}
		}
		
		// 發送
		Sender sender = senderFactory.getSender(msgType);
		if (sender == null){
			// 找不到對應類型的發送器
			logger.error("編號爲: " + bmtCode + " 的消息模板，類型爲: " + msgType + " 沒有對應的消息發送器");
			throw new CheckException("編號爲: " + bmtCode + " 的消息模板，類型爲: " + msgType + " 沒有對應的消息發送器");
		}
		sender.sender(title, content, to);
		
		
	}

}

大家看到了代碼涉及到了DAO和Factory，這裏注入DAO是因爲我們把消息發送的相關信息都放進了數據庫存儲起來，我們根據識別號，去判斷髮送短息還是郵件，發送的模板是什麼等等。那我們寫一個發送消息的工廠類SendFactory：

[java] view plain copy print ?

/**
* 功能: 根據不同的消息類型，取得適應的消息發送器
*
* 用法:
*
* @version 1.0
*/
public class SenderFactory {
@Autowired
@Qualifier("mailSenderAdapt")
private Sender mailSender;
@Autowired
@Qualifier("smsSenderAdapt")
private Sender smsSender;
public Sender getSender(String type) {
Sender sender = null;
if (BaseMessageTempletEO.BMT_TYPE_MAIL.equalsIgnoreCase(type)) {
// 郵件
sender = mailSender;
} else if (BaseMessageTempletEO.BMT_TYPE_SMS.equalsIgnoreCase(type)) {
// 短信
sender = smsSender;
}
return sender;
}
}

如你所看到的我們會if的判斷得知該請求是要發送郵件還是發送短信。

我們暫時放下前面的，定義一個頂層接口Sender：

[java] view plain copy print ?

/**
* 功能: 消息發送器接口
* 用法:
* @version 1.0
*/
public interface Sender {
/**
* @param title 消息的標題
* @param content 消息的內容
* @param to 消息的接收人
* @throws CheckException
*/
public void sender(String title, String content, String... to) throws CheckException;
}

然後我們要分別定義郵件和短信接口，並實現頂層接口Sender：

[java] view plain copy print ?

public class SmsSenderAdapt implements Sender {
@Autowired
@Qualifier("smsSenderImpl_commons")
private SmsSender smsSender;
@Override
public void sender(String title, String content, String... to)
throws CheckException {
smsSender.sendSms(to, content);
}

[java] view plain copy print ?

public class MailSenderAdapt implements Sender {
@Autowired
@Qualifier("emailSenderImpl_commons")
private EmailSender emailSender;
@Autowired
private ConfigService configService;
@Override
public void sender(String title, String content, String... to)
throws CheckException {
// 從數據庫取發件人，及發件人姓名
String from = configService.getConfig(BasePropertyID.MAIL_SMTP_FROM_ID);
String fromName = configService.getConfig(BasePropertyID.MAIL_SMTP_FROMNAME_ID);
Mail mail = new Mail();
mail.setFrom(from);
mail.setFromName(fromName);
mail.setTo(to);
mail.setSubject(title);
mail.setContent(content);
emailSender.sendEmail(mail);
}
}

後面對sendEmail（mail）這個已經在上一篇實現了，大家可以返回去看一下，是不是明白了呢？

接下來我詳細介紹發送短信的代碼。

那好我們來時先剛剛短信的接口：

[java] view plain copy print ?

/**
* 功能: 短信發送服務
*
* 用法:
*
* @version 1.0
*/
public class SmsSenderImpl implements SmsSender,InitializingBean {
/**
* Logger for this class
*/
private static final Logger logger = Logger.getLogger(SmsSenderImpl.class);
@Autowired
private ConfigService configService;
private String smsUrl;
private String cpidName;
private String cpidValue;
private String pwdName;
private String pwdValue;
private String pidName;
private String pidValue;
private String phoneName;
private String msgName;
private int maxLength = 60; // 默認值
@Override
public void sendSms(String mobilePhone, String message) throws CheckException {
send(message, mobilePhone);
}
@Override
public void sendSms(String[] mobilePhones, String message) throws CheckException {
if (ArrayUtils.isEmpty(mobilePhones)){
throw new CheckException("手機號碼不能爲空");
}
for (String phone : mobilePhones) {
sendSms(phone, message);
}
}
/**
* 如果超過短信的長度，則分成幾條發
* @param content
* @param phoneNo
* @return
* @throws CheckException
*/
private String send(String content,String phoneNo) throws CheckException{
content = StringUtils.trimToEmpty(content);
phoneNo = StringUtils.trimToEmpty(phoneNo);
if (StringUtils.isEmpty(content)){
throw new CheckException("短信內容爲空");
}
if (StringUtils.isEmpty(phoneNo)){
throw new CheckException("手機號爲空");
}
// 如果服務未準備好，先初始化
if (!isReady()) {
try {
init();
// 初始化後，服務仍未準備好
if (!isReady()) {
throw new CheckException("郵件服務初始化異常");
}
} catch (Exception e) {
logger.error("send(String, String)", e);
throw new CheckException("郵件服務初始化異常");
}
}
// 如果超過最大長度，則分成幾條發送
int count = content.length() / maxLength;
int reminder = content.length() % maxLength;
if (reminder != 0 ){
count += 1;
}
StringBuffer result = new StringBuffer();
int i = 0;
while (count > i){
result.append(doSend(StringUtils.substring(content, i*maxLength, (i+1)*maxLength),phoneNo));
result.append(";");
i ++;
}
return result.toString();
}
private boolean isReady(){
return !(smsUrl == null || cpidName == null || cpidValue == null
|| pwdName == null || pwdValue == null || pidName == null
|| pidValue == null || phoneName == null || msgName == null || maxLength <= 0);
}
/**
* @param content
* @param phoneNo
* @return
* @throws CheckException
*/
private String doSend(String content,String phoneNo) throws CheckException{
// 使用httpclient模擬http請求
HttpClient client = new HttpClient();
// 設置參數編碼
client.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "GBK");
PostMethod method = new PostMethod(smsUrl);
method.addParameter(cpidName, cpidValue);
method.addParameter(pidName, pidValue);
method.addParameter(pwdName, pwdValue);
method.addParameter(phoneName, phoneNo);
method.addParameter(msgName, content);
BufferedReader br = null;
String reponse = null;
try {
int returnCode = client.executeMethod(method);
if (returnCode != HttpStatus.SC_OK) {
// 請求出錯
throw new CheckException("短信接口異常");
}
br = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream()));
reponse = br.readLine();
String responseCode = StringUtils.substring(reponse, 0, 1);
if (!"0".equals(responseCode)){
throw new CheckException(getResponseMsg(responseCode));
}
} catch (Exception e) {
logger.error("doSend(String, String)", e);
if (e instanceof CheckException){
throw (CheckException)e;
}else{
throw new CheckException("未知異常"); // 未知異常
}
} finally {
method.releaseConnection();
if (br != null)
try {
br.close();
} catch (Exception e1) {
logger.error("doSend(String, String)", e1);
e1.printStackTrace();
}
}
return reponse;
}
public void afterPropertiesSet() throws Exception {
// 初始化
init();
}
private void init() throws Exception{
smsUrl = configService.getConfig(BasePropertyID.SMS_URL_ID);
cpidName = configService.getConfig(BasePropertyID.SMS_CPID_NAME_ID);
cpidValue = configService.getConfig(BasePropertyID.SMS_CPID_VALUE_ID);
pwdName = configService.getConfig(BasePropertyID.SMS_PWD_NAME_ID);
pwdValue = configService.getConfig(BasePropertyID.SMS_PWD_VALUE_ID);
pidName = configService.getConfig(BasePropertyID.SMS_PID_NAME_ID);
pidValue = configService.getConfig(BasePropertyID.SMS_PID_VALUE_ID);
phoneName = configService.getConfig(BasePropertyID.SMS_PHONE_NAME_ID);
msgName = configService.getConfig(BasePropertyID.SMS_MSG_NAME_ID);
maxLength = configService.getConfigByInteger(BasePropertyID.SMS_MSG_MAXLENGTH_ID);
}
private String getResponseMsg(String code){
String msg = "未知返回值:" + code;
if ("1".equals(code)) {
msg = "手機號碼非法";
} else if ("2".equals(code)) {
msg = "用戶存在於黑名單列表";
} else if ("3".equals(code)) {
msg = "接入用戶名或密碼錯誤";
} else if ("4".equals(code)) {
msg = "產品代碼不存在";
} else if ("5".equals(code)) {
msg = "IP非法";
} else if ("6".equals(code)) {
msg = "源號碼錯誤";
} else if ("7".equals(code)) {
msg = "調用網關錯誤";
} else if ("8".equals(code)) {
msg = "消息長度超過60";
} else if ("-1".equals(code)) {
msg = "短信內容爲空";
} else if ("-2".equals(code)) {
msg = "手機號爲空";
}else if ("-3".equals(code)) {
msg = "郵件服務初始化異常";
}else if ("-4".equals(code)) {
msg = "短信接口異常";
}
return msg;
}
}

/**
 * 功能: 短信發送服務
 * 
 * 用法:
 * 
 * @version 1.0
 */

public class SmsSenderImpl implements SmsSender,InitializingBean {
	/**
	 * Logger for this class
	 */
	private static final Logger logger = Logger.getLogger(SmsSenderImpl.class);

@Autowired
	private ConfigService configService;
	
	private String smsUrl;
	private String cpidName;
	private String cpidValue;
	private String pwdName;
	private String pwdValue;
	private String pidName;
	private String pidValue;
	private String phoneName;
	private String msgName;
	private int maxLength = 60; // 默認值
	
	@Override
	public void sendSms(String mobilePhone, String message) throws CheckException {
		send(message, mobilePhone);
		
	}

@Override
	public void sendSms(String[] mobilePhones, String message) throws CheckException {
		if (ArrayUtils.isEmpty(mobilePhones)){
			throw new CheckException("手機號碼不能爲空");
		}
		for (String phone : mobilePhones) {
			sendSms(phone, message);
		}
		
	}

/**
	 * 如果超過短信的長度，則分成幾條發
	 * @param content
	 * @param phoneNo
	 * @return
	 * @throws CheckException
	 */
	private String send(String content,String phoneNo) throws CheckException{
	 content = StringUtils.trimToEmpty(content);
	 phoneNo = StringUtils.trimToEmpty(phoneNo);
	 
		if (StringUtils.isEmpty(content)){
			throw new CheckException("短信內容爲空");
		}
		if (StringUtils.isEmpty(phoneNo)){
			throw new CheckException("手機號爲空");
		}
		// 如果服務未準備好，先初始化
		if (!isReady()) {
			try {
				init();
				// 初始化後，服務仍未準備好
				if (!isReady()) {
					throw new CheckException("郵件服務初始化異常");
				}
			} catch (Exception e) {
				logger.error("send(String, String)", e);
				
				throw new CheckException("郵件服務初始化異常");
			}
		}
		
		// 如果超過最大長度，則分成幾條發送
		int count = content.length() / maxLength;
		int reminder = content.length() % maxLength;
		 
		if (reminder != 0 ){
		 count += 1;
		}
		StringBuffer result = new StringBuffer();
		int i = 0;
		while (count > i){
		 result.append(doSend(StringUtils.substring(content, i*maxLength, (i+1)*maxLength),phoneNo));
		 result.append(";");
		 i ++;
		}
		return result.toString();
	}
	
	private boolean isReady(){
		return !(smsUrl == null || cpidName == null || cpidValue == null
				|| pwdName == null || pwdValue == null || pidName == null
				|| pidValue == null || phoneName == null || msgName == null || maxLength <= 0);
	}
	/**
	 * @param content
	 * @param phoneNo
	 * @return
	 * @throws CheckException
	 */
	private String doSend(String content,String phoneNo) throws CheckException{
		
		// 使用httpclient模擬http請求
		HttpClient client = new HttpClient();
		// 設置參數編碼
		client.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "GBK");
		
		PostMethod method = new PostMethod(smsUrl);
		
	 method.addParameter(cpidName, cpidValue);
	 method.addParameter(pidName, pidValue);
	 method.addParameter(pwdName, pwdValue);
	 method.addParameter(phoneName, phoneNo);
	 method.addParameter(msgName, content);
	 
		
		BufferedReader br = null;
		String reponse = null;
		try {
			int returnCode = client.executeMethod(method);

if (returnCode != HttpStatus.SC_OK) {
				// 請求出錯
				throw new CheckException("短信接口異常");

}
			br = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream()));
			reponse = br.readLine();
			String responseCode = StringUtils.substring(reponse, 0, 1);
			if (!"0".equals(responseCode)){
				throw new CheckException(getResponseMsg(responseCode));
			}

} catch (Exception e) {
			logger.error("doSend(String, String)", e);

if (e instanceof CheckException){
				throw (CheckException)e;
			}else{
			    throw new CheckException("未知異常"); // 未知異常
			}
		} finally {
			method.releaseConnection();
			if (br != null)
				try {
					br.close();
				} catch (Exception e1) {
					logger.error("doSend(String, String)", e1);

e1.printStackTrace();
				}
		}

return reponse;
	}

public void afterPropertiesSet() throws Exception {
		// 初始化
		init();
	}
	
	private void init() throws Exception{
		
		smsUrl = configService.getConfig(BasePropertyID.SMS_URL_ID);
		cpidName = configService.getConfig(BasePropertyID.SMS_CPID_NAME_ID);
		cpidValue = configService.getConfig(BasePropertyID.SMS_CPID_VALUE_ID);
		pwdName = configService.getConfig(BasePropertyID.SMS_PWD_NAME_ID);
		pwdValue = configService.getConfig(BasePropertyID.SMS_PWD_VALUE_ID);
		pidName = configService.getConfig(BasePropertyID.SMS_PID_NAME_ID);
		pidValue = configService.getConfig(BasePropertyID.SMS_PID_VALUE_ID);
		phoneName = configService.getConfig(BasePropertyID.SMS_PHONE_NAME_ID);
		msgName = configService.getConfig(BasePropertyID.SMS_MSG_NAME_ID);
		maxLength = configService.getConfigByInteger(BasePropertyID.SMS_MSG_MAXLENGTH_ID);
		
	}
	
	private String getResponseMsg(String code){
		String msg = "未知返回值:" + code;
		if ("1".equals(code)) {
			msg = "手機號碼非法";
		} else if ("2".equals(code)) {
			msg = "用戶存在於黑名單列表";
		} else if ("3".equals(code)) {
			msg = "接入用戶名或密碼錯誤";
		} else if ("4".equals(code)) {
			msg = "產品代碼不存在";
		} else if ("5".equals(code)) {
			msg = "IP非法";
		} else if ("6".equals(code)) {
			msg = "源號碼錯誤";
		} else if ("7".equals(code)) {
			msg = "調用網關錯誤";
		} else if ("8".equals(code)) {
			msg = "消息長度超過60";
		} else if ("-1".equals(code)) {
			msg = "短信內容爲空";
		} else if ("-2".equals(code)) {
			msg = "手機號爲空";
		}else if ("-3".equals(code)) {
			msg = "郵件服務初始化異常";
		}else if ("-4".equals(code)) {
			msg = "短信接口異常";
		}
		return msg;
	}

}

和郵件發送是不是很類似，相信大家應該會理解吧。O(∩_∩)O哈哈~，我這裏發送的配置信息都直接初始化在了java代碼裏，大家也可以試着將其配置在xml文件裏，這樣更改更方便。

ysyn1209

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java郵件發送和短信發送（二）

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