结合六个基本质量属性
可用性：
异常
可修改性：
1.维持语义的一致性，高内聚低耦合
2.维持现有的接口，Login依赖LoginIService接口，LoginService依赖ILogDAO
性能：暂无
安全性：
对用户进行身份验证
易用性：暂无
分析具体功能模块的MVC设计实现（例如登录、用户权限等功能模块）
在实际项目中的具体应用或分析MVC设计模式在具体网站中的应用（需要列举实例）
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login |
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public String execute() throws Exception { String[] request=loginservice.userpan(user, pwd, randcode); req.getSession().setAttribute("username",user); HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/html;charset=UTF-8"); response.setCharacterEncoding("UTF-8");//防止弹出的信息出现乱码 PrintWriter out = response.getWriter(); if(request[0].equals("Error")) { out.print("<script>alert('"+request[1]+"');</script>"); out.flush(); out.close(); return "Error"; } return "Success"; } |
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LoginISerivece |
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public String[] userpan(String user,String pwd,String randcode); |
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LoginService |
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//输入用户名，密码，验证码，返回（id,msg）是否错误和错误信息 public String[] userpan(String user,String pwd,String randcode) { String[] msg = new String[2]; String bm=""; HttpServletRequest req=ServletActionContext.getRequest(); String srand=(String)req.getSession().getAttribute("rand");//session.setAttribute("rand", sRand); msg[0]="Error"; msg[1]="未知错误"; try { if(!srand.equals(randcode)) { msg[0]="Error"; msg[1]="验证码错误"; return msg; } } catch (Exception e) { msg[0]="Error"; msg[1]="验证码错误"; return msg; } try{ Log result=logdao.findById(user); if(result==null) { msg[0]="Error"; msg[1]="账号不存在"; return msg; } if(!result.getPassword().equals(pwd)) { msg[0]="Error"; msg[1]="密码错误"; return msg; } bm=result.getBm(); } catch (Exception e) { msg[0]="Error"; msg[1]="账号密码错误"; return msg; } req.getSession().setAttribute("bm", bm); msg[0]="Success"; return msg; } |
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ILoginDAO |
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public Log findById(java.lang.String id); |
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LoginDAO |
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public Log findById(java.lang.String id) { log.debug("getting Log instance with id: " + id); try { Log instance = (Log) getHibernateTemplate().get("interdao.dao.Log", id); return instance; } catch (RuntimeException re) { log.error("get failed", re); throw re; } } |
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Log |
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public class Log extends AbstractLog implements java.io.Serializable { // Constructors /** default constructor */ public Log() { } /** minimal constructor */ public Log(String username, String password, String role) { super(username, password, role); } /** full constructor */ public Log(String username, String password, String role, String bm) { super(username, password, role, bm); } } |