exprtokenizer.jsp

来自「《JSP时尚编程百例》一例源代码81-100」· JSP 代码 · 共 36 行

JSP
36
字号
<%@ page contentType="text/html; charset=gb2312" %>
<%@ page import="java.lang.*" %>
<%@ page language="java" %>
<%
    String expr=request.getParameter( "expression" ) ;
%>
<jsp:useBean id="tokensList" scope="request" class="cal.ExprTokensList" >
  <jsp:setProperty name="tokensList" property="expression" value="<%=expr %>" />
</jsp:useBean>
<%
    if( tokensList.isParsingOk() ) {
%>
<jsp:forward page="EasyCalculator.jsp" />
<%
    }
    else {
%>
<html>
<head>
<title>简易计算器</title>
</head>
<BODY>
<CENTER>
<FONT SIZE=5 COLOR=BLUE>简易计算器</FONT>
</CENTER>
<BR>
<HR>
<BR>
<div align="center" >
<jsp:getProperty name="tokensList" property="errorMessage" />
</div>
</body>
</html>
<%
    }
%>

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