Object practice session

<body>
  <h2 class="a">欢迎来到新闻发布系统</h2>
    <form action="denglu.jsp" >
    <button >登录</button></form>&nbsp;&nbsp;
    <form action="zhuce.jsp" class="b">
    <button>注册</button>
    </form>
  </body>

<body>
    <h2>注册页面</h2>
    <form action="denglu.jsp" method="get">
    账户:<input type="text" name="zzhanghao" ><br>
    密码:<input type="password" name="zmima">
    <input type="submit" value="注册">
    </form>

<br>
  </body>

zhuce.jsp

<body>
  <h2>登录页面</h2>
  <%
  String zzh=request.getParameter("zzhanghao");
  String zmm=request.getParameter("zmima");
  session.setAttribute("zzzhanghao", zzh);
  session.setAttribute("zzmima", zmm);
   %>
 <form action="dchuli.jsp" method="get">
      账户:<input type="text" name="dzhanghao"><br>of the typethe INPUT<
    Password:="password" name="dmima">
<input type="submit"  value="登录"></form>
    <br>
  </body>

denglu.jsp

 //登录判断页面
<body>
   <%
     String dzh=request.getParameter("dzhanghao");
     String dmm=request.getParameter("dmima");
     session.setAttribute("ddzhanghao", dzh);
     session.setAttribute("ddmima", dmm);
     String zzzhanghao=(String)session.getAttribute("zzzhanghao");
     String zzmima=(String)session.getAttribute("zzmima");
     String ddzhanghao=(String)session.getAttribute("ddzhanghao");
     String ddmima=(String)session.getAttribute("ddmima");
   
     if(ddzhanghao==null||ddmima==null){
     ddzhanghao="orr";
     ddmima = "ORR" ; 
     } 
     
      IF (zzzhanghao == null || zzmima == null) {
 zzzhanghao = "eorr" ; 
zzmima = "eorr" ; 
    } 
    
 IF (zzzhanghao.equals (ddzhanghao) && zzmima.equals (ddmima)) { 
 IF (zzzhanghao.equals ( "ADMIN")) { 
 Out.println ( "page background operation" + "</ br > "); 
Out.println ( "administrator information" + " </ br > "); OUT. print ( "administrator account" + ddzhanghao + "password" + ddmima); 
 } the else { 
    request.getRequestDispatcher ( "index2.jsp") Forward (Request, Response).;
    }
    }else{
    //out.print(dzhanghao);
    String a=(String)session.getAttribute("zzzhanghao");
     B = String (String) session.getAttribute ( "zzmima"); 
    request.getRequestDispatcher ( "denglu.jsp") Forward (Request, Response);. 
    } 
    

     %> 
<-!  
 Registered account <% = zzzhanghao%> Register Password <% = zzmima%> <br> 
 login account <% = ddzhanghao%> password <% =% ddmima> 
-> 
   < br > 
  </ body >

dchuli.jsp

 <!-- 新闻页面 -->
  <body>
   <form action="pyan.jsp">
    
      最新新闻<br><br>评论：<input type="text" name="pinglun"><input type="submit" value="提交评论"><br></form> <br>
  </body>

index2.jsp

 <!-- 评论发表 -->
  <body>
  <%
  String py=request.getParameter("pinglun");
  session.setAttribute("pyanzheng", py);
  String yh=(String)session.getAttribute("ddzhanghao");
  String pl=(String)session.getAttribute("pyanzheng");
   %>
   <form action="">
      最新新闻<br><br>评论：<input type="text"><input type="submit"> <= "submit comment"valuebr>
      用户：<%= yh%>说：<%= pl%>
      </form> <br>
  </body>

pyan.jsp

Object practice session

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