package com.frank.demo@Componentpublic class RegisterService {	protected ApplicationContext getContext() {        	return SpringSingletonUtil.getInstance().getApplicationContext();    	}	public LoginResult afterRegisterSuccess(int userId, String username, int usernameType, DeviceAdapt deviceAdapt) {        // 发布注册成功事件        RegisterSuccessEvent event = new RegisterSuccessEvent(this);        event.setUserId(userId);        if (usernameType == UsernameUtils.USERNAME_TYPE_MOBILE) {            username = "" + UsernameUtils.getMobile(username);// 返回普通手机号        }        event.setUsername(username);        event.setUsernameType(usernameType);        getContext().publishEvent(event);        deviceAdapt.setUserId(userId);        // 记录注册设备信息        registerInfoHome.recordDeviceInfo(deviceAdapt);        return loginService.loginAndRecord(deviceAdapt);    }}

RegisterService 代码如上

package com.frank.demoimport org.springframework.beans.factory.BeanFactoryUtils;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.ApplicationContext;import org.springframework.stereotype.Component;/** * 协助实现spring单例模式,此类主要用于持有ApplicationContext引用 * @author  */@Componentpublic class SpringSingletonUtil {	private static SpringSingletonUtil instance;	@Autowired	private ApplicationContext context;	private SpringSingletonUtil() {		instance = this;	}	@SuppressWarnings("unchecked")	public static 
    
      T getBean(Class
     
       cls) {		return (T)BeanFactoryUtils.beanOfType(instance.context, cls);	}	public static ApplicationContext getApplicationContext() {		return instance.context;	}	/**	 * 单例模式	 * @return	 *	 * @deprecated getBean(Class)	 */	public static SpringSingletonUtil getInstance() {		return instance;	}}
     
    

package com.frank.demoimport org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.ApplicationEvent;import org.springframework.context.ApplicationListener;import org.springframework.stereotype.Component;/** *  * 
 * 账户注册成功监听器 * 
 */@Componentpublic class RegisterSuccessListener implements ApplicationListener {	private static Logger logger = LoggerFactory.getLogger(RegisterSuccessListener.class);	@Override	public void onApplicationEvent(ApplicationEvent event) {		if (event instanceof RegisterSuccessEvent) {			// Do something.		}	}}

package com.frank.demo;import org.springframework.context.ApplicationEvent;/** *  *
 *	注册成功事件 *
 */public class RegisterSuccessEvent extends ApplicationEvent {	private static final long serialVersionUID = 1L;		private int userId;	private String username;	private int type;	/**	 * 登录名类型：1为手机号，2为邮箱地址	 */	public int getType() {		return type;	}	public void setUsernameType(int type) {		this.type = type;	}	public RegisterSuccessEvent(Object source) {		super(source);	}	public String getUsername() {		return username;	}	public void setUsername(String username) {		this.username = username;	}	public int getUserId() {		return userId;	}	public void setUserId(int userId) {		this.userId = userId;	}	@Override	public String toString() {		final StringBuilder sb = new StringBuilder("RegisterSuccessEvent{");		sb.append("userId=").append(userId);		sb.append(", username='").append(username).append('\'');		sb.append(", type=").append(type);		sb.append('}');		return sb.toString();	}}

此项目使用了Spring的ApplicationListener的publish和lisener机制。  并且做了一个ApplicationContext的单例操作。 非常巧妙，使用了事件机制来实现应用功能。