Android开发常用技术建议
浏览数：27 /
时间：2015年06月11日
下面是微信公众平台app开发框架sophia部分源代码，对sophia设计、应用的描述请查阅我前面的文章： 《微信公众平台的STRUTS 》和
/**
* 消息处理器接口，根据请求返回一个微信响应消息
* @author Peter
* */
public interface MessageProcessor {
/**
* 根据请求返回一个微信响应消息
* @param request * @return
*/
public ResponseMessage responseMessageObject(RequestMessage request);
}/**
* 抽象的微信消息处理器，一个微信公众号需一个处理器
* @author Peter
*
*/
public abstract class AbstractMessageProcessor implements MessageProcessor {
private static Log log = LogFactory.getLog(AbstractMessageProcessor.class);
/**
* 响应消息对象
*/
public ResponseMessage responseMessageObject(RequestMessage request) {
log.info("into responseMessageObject ->" + request);
if(RequestMessage.TEXT_MSG_TYPE.equals(request.getMsgType())) {
return responseTextCommand((TextRequestMessage)request, false);
}
else if (RequestMessage.EVENT_MSG_TYPE.equals(request.getMsgType())) {
return responseEvent(request);
}
else if (RequestMessage.PIC_MSG_TYPE.equals(request.getMsgType())) {
return responseImageMessage(request);
}
else if (RequestMessage.VIDEO_MSG_TYPE.equals(request.getMsgType())) {
return responseVideoMessage(request);
}
else {
TextResponseMessage response = new TextResponseMessage();
response.setToUserName(request.getFromUserName());
response.setFromUserName(request.getToUserName());
response.setContent("错误的请求！");
return response;
}
}
/**
* 响应视频上传
* @param request
* @return
*/
public ResponseMessage responseVideoMessage(RequestMessage request) {
return buildResponseMessage(request, "你的视频已经上传成功！");
}
/**
* 响应图片上传
* @param request
* @return
*/
public ResponseMessage responseImageMessage(RequestMessage request) {
return buildResponseMessage(request, "你的图片已经上传成功！");
}
/**
* 响应时事件方法
* @param request
* @return
*/
public ResponseMessage responseEvent(RequestMessage request) {
EventRequestMessage event = (EventRequestMessage)request;
log.info("into responseEvent ->" + request);
if(event.getEvent().toUpperCase().equals("CLICK")) {
return responseClickEvent(event);
}
else if (event.getEvent().equals("subscribe")) {
return responseSubscribeEvent(request);
}
else {
return responseUnsubscribeEvent(request);
}
}
public ResponseMessage responseSubscribeEvent(RequestMessage request) {
return buildResponseMessage(request,"欢迎订阅！...");
}
public ResponseMessage responseUnsubscribeEvent(RequestMessage request) {
return buildResponseMessage(request,"欢迎再次订阅！...");
}
public ResponseMessage responseClickEvent(EventRequestMessage request) {
//转换为文本命令
TextRequestMessage trm = new TextRequestMessage(request.getToUserName(),
request.getFromUserName(),
request.getCreateTime(),
RequestMessage.TEXT_MSG_TYPE,
request.getCorpId(),
request.getMsgId(),
request.getEnventKey());
trm.setHandle(request.getHandle());
return responseTextCommand(trm,true);
}
/**
* 模版方法，
* 1、通过请求文本获取命令对象
* 2、如果命令对象是查询的，则保存命令信息，以便特殊命令“下一页”可以翻页
* 3、优先处理来自点击的命令
* @param request
* @return
*/
private ResponseMessage responseTextCommand(TextRequestMessage request, boolean fromClick) {
CommandParsed parsed = getCommandParsed();
try {
Command command = null;
if(!fromClick && SessionManager.isEditSession(request)) {
TextRequestMessage currentSession = SessionManager.currentEditSession(request);
currentSession.setExecuteTimes(currentSession.getExecuteTimes() + 1);
command = parsed.getCommand(currentSession.getContent());
request.setExecuteTimes(currentSession.getExecuteTimes());
return command.execute(request);
}
else {
command = parsed.getCommand(request.getContent());
SessionManager.createSession(request,command.commandMode());
return command.execute(request);
}
} catch (IllegalReplyException e) {
log.info("IllegalReplyException :" + e.getMessage());
return buildResponseMessage(request, e.getMessage());
} catch (NotFoundCommandException e) {
log.info("NotFoundCommandException :" + e.getMessage());
return buildResponseMessage(request,e.getMessage());
} catch (Exception e) {
return buildResponseMessage(request, "此命令不存在,获取帮助回复:BZ");
}
}
/**
* 创建响应消息
* @param request
* @param msgText
* @return
*/
public ResponseMessage buildResponseMessage(RequestMessage request,
String msgText) {
TextResponseMessage message = new TextResponseMessage();
message.setContent(msgText);
message.setToUserName(request.getToUserName());
message.setFromUserName(request.getFromUserName());
return message;
}
/**
* 抽象方法，获取命令解析器
* @return
*/
public abstract CommandParsed getCommandParsed();
}
/**
* 抽象命令解析器
* @author Peter
*
*/
public abstract class AbstractCommandParsed implements CommandParsed {
protected static Log log = LogFactory.getLog(AbstractCommandParsed.class);
/**
* 代码-命令映射器
*/
private Map<String, Command> commands = new HashMap<String, Command>();
/**
* 别名-命令映射器
*/
private Map<String, Command> aliasCommands = new HashMap<String, Command>();
public AbstractCommandParsed() {
initCommands();
}
/**
* 初始化基本命令
*/
private void initCommands() {
List<Command> list = extendCommands();
if(null == list || list.size() == 0) {
list = new ArrayList<Command>();
}
list.add(new HelpTextCommand(commands));
list.add(new NextTextCommand(this));
list.add(new BackTextCommand(this));
for (Iterator it = list.iterator(); it.hasNext();) {
Command comm = (Command) it.next();
commands.put(comm.getCommandCode().toUpperCase(), comm);
aliasCommands.put(comm.getAliasName(), comm);
}
}
/**
* 子类扩展
*/
public abstract List<Command> extendCommands();
private Command text2Command(String text) {
String commandCode = getCodeOrAliasOfCommand(text, commands);
log.info("text2Command-->" + commandCode);
if(null != commandCode && commands.get(commandCode) != null) {
return commands.get(commandCode);
}
else {
commandCode = getCodeOrAliasOfCommand(text, aliasCommands);
log.info("text2Command-->" + commandCode);
return aliasCommands.get(commandCode);
}
}
/**
* 根据文本获取命令或者别名，子类可以重写此方法实现特有的解析算法
* @param text
* @param comms
* @return
*/
public String getCodeOrAliasOfCommand(String text,
Map<String, Command> comms) {
for (Iterator it = comms.keySet().iterator(); it.hasNext();) {
String commandCode = (String) it.next();
if(text.startsWith(commandCode)) {
log.info("getCodeOrAliasOfCommand-->" + commandCode);
return commandCode;
}
}
return null;
}
/**
* 根据用户回复的文本,转化成系统命令
*/
public Command getCommand(String text) throws NotFoundCommandException {
Command command = text2Command(text.toUpperCase());
if (command == null) {
command = getDefaultCommand();
if (null == command) {
throw new NotFoundCommandException("命令:\n" + text + "\n没有找到，查看帮助请回复：BZ");
}
}
log.info("getCommand-->" + command.getCommandCode());
return command;
}
/**
* 建立命令和对象的映射关系
* @param name
* @param command
*/
protected void putCommand(String name, Command command) {
commands.put(name, command);
}
/**
* 建立别名和对象的映射关系
* @param name
* @param command
*/
protected void putAliasCommand(String name, Command command) {
aliasCommands.put(name, command);
}
/**
* 有默认处理器的必须重写这个方法
* @return
*/
public Command getDefaultCommand() {
return null;
}
}/**
* 用户回复命令处理接口
* @author Peter
*
*/
public interface Command {
/**
* 命令分隔字符
*/
public static final String STRING_DELIM = " ,.!，";
/**
* 响应微信公众平台请求
* @param request
* @return
*/
public ResponseMessage execute(RequestMessage request) throws IllegalReplyException;
/**
* 获取命令模式
* @return
*/
public CmdMode commandMode();
/**
* 命令代码
* @return
*/
public String getCommandCode();
/**
* 命令别名
* @return
*/
public String getAliasName();
/**
* 命令用法
* @return
*/
public String getHelpInfo();
}
/**
* 抽象文本命令，用于帮助子类解析参数，验证等
* @author Peter
*
*/
public abstract class AbstractTextCommand implements Command {
protected static Log log = LogFactory.getLog(AbstractTextCommand.class);
protected boolean isDefaultCommand = false;
/**
* 执行命令
*/
public ResponseMessage execute(RequestMessage request)
throws IllegalReplyException {
log.info("-------------->" + request);
if (!isAuthorization(request)) {
SessionManager.destroySession(request);
return buildTextResponseMessage("非法操作", (TextRequestMessage)request);
}
TextRequestMessage textRequest = (TextRequestMessage) request;
String paramsText = getParamText(textRequest);
return doExecute(textRequest, verificationReplyContent(paramsText));
}
/**
* 根据微信用户回复的内容，提取命令的参数
* @param textRequest
* @return
*/
public String getParamText(TextRequestMessage textRequest) {
String replyText = textRequest.getContent().toUpperCase();
if(isDefaultCommand) {
replyText = getCommandCode() + "," + replyText;
}
String paramsText = null;
if (replyText.startsWith(this.getCommandCode())) {
paramsText = replyText.substring(this.getCommandCode().length());
} else {
paramsText = replyText.substring(this.getAliasName().length());
}
return paramsText;
}
/**
* 真正处理业务的方法
* @param request
* @param params 微信用户输入的参数
* @return
*/
public abstract ResponseMessage doExecute(TextRequestMessage request,
String[] params);
/**
* 验证微信回复的内容
* @param paramsText
* @return
* @throws IllegalReplyException
*/
public String[] verificationReplyContent(String paramsText)
throws IllegalReplyException {
return tokenizer(paramsText);
}
/**
* 从参数文本中进一步解析参数
* @param tokened
* @return
*/
protected String[] tokenizer(String tokened) {
StringTokenizer token = new StringTokenizer(tokened,Command.STRING_DELIM);
List<String> list = new ArrayList<String>();
while (token.hasMoreTokens()) {
list.add(token.nextToken());
}
log.info("list------>" + list.toArray());
if(list.size() == 0) {
return null;
}
else {
return list.toArray(new String[]{});
}
}
public static void main(String[] args) {
String str = ",3";
StringTokenizer token = new StringTokenizer(str,Command.STRING_DELIM);
List<String> list = new ArrayList<String>();
while (token.hasMoreTokens()) {
list.add(token.nextToken());
}
System.out.println(list);
System.out.println(list.toArray(new String[]{}));
}
public CmdMode commandMode() {
return CmdMode.COMMON;
}
/**
* 命令是否可以响应某微信用户的请求，默认授权
* @param request
* @return
*/
public boolean isAuthorization(RequestMessage request) {
return true;
}
/**
* 创建文本响应消息对象
* @param content 文本内容
* @param request
* @return
*/
public TextResponseMessage buildTextResponseMessage(String content,TextRequestMessage request) {
TextResponseMessage respMsg = new TextResponseMessage();
respMsg.setContent(content);
respMsg.setToUserName(request.getToUserName());
respMsg.setFromUserName(request.getFromUserName());
return respMsg;
}
/**
* 创建图文消息响应对象
* @param request
* @return
*/
public NewsResponseMessage buildNewsResponseMessage(RequestMessage request) {
NewsResponseMessage news = new NewsResponseMessage();
news.setCreateTime(System.currentTimeMillis());
news.setFromUserName(request.getFromUserName());
news.setToUserName(request.getToUserName());
news.setMsgType("news");
return news;
}
}
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