JSP之session

Posted 2020-06-17

index.jsp：

<form id="form1" name="form1" method="post" action="session.jsp">
  <table width="500" border="0" height="54">
    <tr>
      <td><div align="center">您的名字是：</div></td>
      <td><label>
          <input type="text" name="name" />
          </div>
      </label></td>
    </tr>
    <tr>
      <td colspan="2"><label>
          <input type="submit" name="Submit" value="提交" />
      </label></td>
    </tr>
  </table>
  <label></label>
</form>

session.jsp:

<%
   String name=request.getParameter("name");
//获取用户填写的用户名
  session.setAttribute("name", name);
//将用户名保存到session对象中
   %> 
  <form id="form1" name="form1" method="post" action="MyJsp.jsp">
  <table width="500" border="0">
  <tr>
    <td>您的名字是：</td>
    <td><form id="form3" name="form3" method="post">
      <label>
      <td>
        <%=name %></td>
        </label>
    </form>
    </td>
  </tr>
    <tr>
      <td><div align="center">您的想要去的地方是：</div></td>
      <td><label>
          <input type="text" name="address" />
          </div>
      </label></td>
    </tr>
    <tr>
      <td colspan="2"><label>
          <input type="submit" name="Submit" value="提交" />
      </label></td>
    </tr>
  </table>
  <label></label>
</form>

MyJsp.jsp:

 <%
   String name=session.getAttribute("name").toString();
    String address=request.getParameter("address");
   %> 
    <form id="form1" name="form1" method="post" action="">
  <table width="500" border="0">
    <tr>
      <td colspan="2"><div align="center">SHOW</div></td>
    </tr>
    <tr>
      <td>你的名字是：</td>
      <td><%=name %></td>
    <tr>
      <td><div align="center">您的想要去的地方是：</div></td>
      <td><%=address %></td>
    </tr>
  </table>
</form>