JAVA学习第三篇：计算两个数的和
1.sum.jsp
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title>输入操作数</title>
</head>
<body>
求代数和
<br />
<s:form action="mystruts/sum.action">
<s:textfield name="operand1" label=" 操作数1" />
<s:textfield name="operand2" label=" 操作数2" />
<s:submit value="代数和" />
<hr>
<hr>
<hr>
</s:form>
</body>
2.negative.jsp
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title>显示代数和</title>
</head>
<body>
代数和为负整数
<h1>
<s:property value="sum" />
</h1>
</body>
</html>
3.positive.jsp
<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<title>显示代数和</title>
</head>
<body>
代数和为非负整数
<h1>
<s:property value="sum" />
</h1>
</body>
</html>
4.struts.xml需要用的包
<package name="struts2" namespace="/mystruts"
extends="struts-default">
<action name="sum" class="action.FirstAction">
<result name="positive">/positive.jsp</result>
<result name="negative">/negative.jsp</result>
</action>
</package>