Struts 1 学习笔记-2-2（Struts标签的测试用例）

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本人共测试了<bean : write>，以及其中的property，format等，<logic : empty> ，<logic : notEmpty>，<logic : present>，<logic : notPresent>，<logic : iterate>

在这里我就只贴出几个关键的代码，如有人需要全部代码，可联系本人。

1.struts-config.xml：

<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE struts-config PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"

"http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">

<struts-config>

<action-mappings>

</action>

</action>

</action>

</action-mappings>

<message-resources parameter="MessageResources" />

</struts-config>

2.BeanWriteTestAction.java

package com.codedestiny.struts;

import java.util.Date;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

public class BeanWriteTestAction extends Action {

public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

request.setAttribute("hello", "Hello world");

request.setAttribute("cd", "<font color='red' size='10'>成都欢迎您</font>");

request.setAttribute("today", new Date());

request.setAttribute("number", 1234456789.987654321);

Group relatedGroup = new Group();

relatedGroup.setName("西华大学");

User u = new User();

u.setUsername("CodeDestiny");

u.setAge(21);

u.setRelatedGroup(relatedGroup);

request.setAttribute("user", u);

return mapping.findForward("success");

}

相应的beanwrite.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>

<%@ taglib prefix="bean" uri="http://struts.apache.org/tags-bean" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>BeanWrite</title>

</head>

<body>

<h1>Bean Write 测试</h1>

<li>普通字符串</li><br>

hello(jsp):<%= request.getAttribute("hello") %><br>

hello(tag):<bean:write name="hello"/><br>

<hr>

<li>html文本</li><br>

cd(defualt):<bean:write name="cd"/><br>

cd(filter=true):<bean:write name="cd" filter="true"/><br>

cd(filter=false):<bean:write name="cd" filter="false"/><br>

<hr>

<li>日期格式化</li><br>

today(default):<bean:write name="today"/><br>

today(format):<bean:write name="today" format="yyyy-MM-dd HH:mm:ss"/>

<hr>

<li>数字格式化</li><br>

number(default):<bean:write name="number"/><br>

number(format:###,####.00):<bean:write name="number" format="###,###.00"/><br>

<hr>

name:<bean:write name="user" property="username"/><br>

age:<bean:write name="user" property="age"/><br>

relatedGroup:<bean:write name="user" property="relatedGroup.name"/><br>

</body>

</html>

3.EmptyPresentTestAction.java：

package com.codedestiny.struts;

import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

public class EmptyPresentTestAction extends Action {

public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

request.setAttribute("attr2", "");

request.setAttribute("attr3", new ArrayList());

return mapping.findForward("success");

}

相应的emptypresent.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>

<%@ taglib prefix="logic" uri="http://struts.apache.org/tags-logic" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

</head>

<body>

<h1>测试 logic:empty,notEmpty 以及 logic:present,notPresent</h1>

<hr>

<logic:empty name="attr1">attr1为空</logic:empty>

<logic:notEmpty name="attr1">attr1不为空</logic:notEmpty><br>

<logic:present name="attr1">attr1存在</logic:present>

<logic:notPresent name="attr1">attr1不存在</logic:notPresent><br>

<hr>

<logic:empty name="attr2">attr2为空</logic:empty>

<logic:notEmpty name="attr2">attr2不为空</logic:notEmpty><br>

<logic:present name="attr2">attr2存在</logic:present>

<logic:notPresent name="attr2">attr2不存在</logic:notPresent><br>

<hr>

<logic:empty name="attr3">attr3为空</logic:empty>

<logic:notEmpty name="attr3">attr3不为空</logic:notEmpty><br>

<logic:present name="attr3">attr3存在</logic:present>

<logic:notPresent name="attr3">attr3不存在</logic:notPresent><br>

</body>

</html>

4.IterateTestAction.java：

package com.codedestiny.struts;

import java.util.ArrayList;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

public class IterateTestAction extends Action {

public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {

List<User> users = new ArrayList<User>();

Group relatedGroup = new Group();

relatedGroup.setName("Xihua Univercity");

for(int i=1; i<10; i++) {

User u = new User();

u.setUsername("user" + i);

u.setAge(20 + i);

u.setRelatedGroup(relatedGroup);

users.add(u);

}

request.setAttribute("users", users);

return mapping.findForward("success");

}

相应的iterate.jsp：

<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%>

<%@ page import="com.codedestiny.struts.*" %>

<%@ page import="java.util.*" %>

<%@ taglib prefix="logic" uri="http://struts.apache.org/tags-logic" %>

<%@ taglib prefix="bean" uri="http://struts.apache.org/tags-bean" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

</head>

<body>

<h1>测试logic:iterate</h1>

<hr>

常规:<br>

List<User> users = (ArrayList<User>)request.getAttribute("users");

if(users == null || users.size() == 0) {

out.println("<tr><td colspan=3>没有任何相关数据</td></tr>");

} else {

for(Iterator<User> it=users.iterator(); it.hasNext(); ) {

User u = it.next();

<tr>

</tr>

}

</table>

<hr>

使用logic:iterate,empty,notEmpty 并结合 bean:write,property<br>

<logic:empty name="users">

<tr><td colspan=3>没有任何相关数据</td></tr>

</logic:empty>

<logic:notEmpty name="users">

<logic:iterate id="user" name="users">

<tr>

</tr>

</logic:iterate>

</logic:notEmpty>

</table>

</body>

</html>