struts２.０学习笔记（二）－

index.jsp

1 <%

@page contentType="text/html; charset=GBK" %>
2 <%

@taglib prefix="s" uri="/struts-tags" %>
  3
  4 
13
14 < html >
15      <%

16        //用到s:datetimepicker时必加的标签
17     %>
18
19      < s:head />
20      < body >
21          < h3 >
22             Struts2UI标签的使用：使用 s:checkboxlist生成多个复选框。
23
24          </ h3 >
25          < s:form >
26              <%

27                //使用简单的集合（数组）生成复选框，list是静态列表选项
28             %>
29              < s:checkboxlist name ="a" label ="选择图书" labelposition ="top"
30                 list ="{'Struts','J2EE','JSP','Hibernate'}" />
31
32              <%

33                //name="包名．DAO类名" id="产生的对象"
34             %>
35              < s:bean name ="com.DAO.BookDAO" id ="bs" />
36
37              <%

38                //1.list="#bs.books" 是产生的对象bs会到BookDAO.java调用getBooks()方法［注意：这里books首字母要小写，BookDAO.java的getBooks()方法要大写］
39                    //2.listKey="name" 是复选框的实际取值，向后台发送的数据，listValue="author"是复选框的标签，显示在前台中的信息（label）
40             %>
41              < s:checkboxlist name ="b" label ="选择图书" labelposition ="top"
42                 list ="#bs.books" listKey ="name" listValue ="author" />
43
44              <%

45                //使用Map集合生成多个复选框
46                    //１.list的# 与{}之间必须有空格
47                    //2.'Struts':'2004' 中'Struts'是key(向后台发送的数据);'2004'是value(显示在前台中的信息)
48             %>
49              < s:checkboxlist name ="c" label ="出版日期" labelposition ="top"
50                 list ="# {'Java':'2005','JSP':'2006','Struts':'2007','Hibernate':'2008'}"
51                 listKey ="key" listValue ="value" ></ s:checkboxlist >
52              < s:submit ></ s:submit >
53          </ s:form >
54          < hr >
55          < h3 >
56             使用s:combobox生成下拉输入框
57          </ h3 >
58          < s:form >
59              <%

60                //使用简单集合生成下拉输入框
61             %>
62              < s:combobox label ="请选择图书" labelposition ="top" theme ="css_xhtml"
63                 list ="{'Java','JSP','Struts','Hibernate'}" size ="20" maxlength ="20"
64                 name ="book" ></ s:combobox >
65
66              <%

67                //使用后台集合获取相关下拉输入框
68                    //1.struts中默认提供四套主题模板,theme="css_xhtml"是其中之一
69                    //2.list="#bs.books" 是产生的对象bs会到BookDAO.java调用getBooks()方法［注意：这里books首字母要小写，BookDAO.java的getBooks()方法要大写］
70                    //3.listKey="name" 是复选框的实际取值，向后台发送的数据，listValue="author"是复选框的标签，显示在前台中的信息（label）
71             %>
72              < s:combobox label ="请选择" labelposition ="top" theme ="css_xhtml"
73                 list ="#bs.books" listKey ="name" listValue ="author" size ="20"
74                 maxlength ="20" name ="book1" ></ s:combobox >
75
76          </ s:form >
77          < hr >
78          < h3 >
79             用s:datetimepicker生成时间选择器
80          </ h3 >
81          < s:form theme ="css_xhtml" >
82              <%

83                //1.name:时间组件的id名
84                    //2.toggleType:邦定时间
85                    //3.value:初始化时间
86                    //4.displayFormat:时间显示的样式
87                    //5.weekStartsOn:以周的形式显示时间日期
88                    //6.type:修改时间选择器的选择内容
89             %>
90
91                 (1)日期选择部件,指定toggleType属性,且指定value="today"(即默认选中的是当天的日期.) < br >
92
93              < s:datetimepicker name ="order.date" label ="购买日期" toggleType ="explode"
94                 value ="today" />
95
96                 (2)日期选择部件,指定了format属性displayFormat="dddd年MM月dd日" < br >
97
98              < s:datetimepicker name ="order.date" label ="购买日期"
99                 displayFormat ="dddd年MM月dd日" />
100
101                 (3)日期选择部件,指定了weekStartsOn属性,默认以周的形式开始 < br >
102
103              < s:datetimepicker name ="order.date" label ="购买日期"
104                 displayFormat ="dddd年MM月dd日" weekStartsOn ="2" />
105                 (4)时间选择部分
106              < s:datetimepicker label ="出发日期" name ="start" type ="time" value ="10:20" />
107          </ s:form >
108          < hr >
109          < h3 >
110             使用s:doubleselect生成级联下拉列表框
111          </ h3 >
112          < s:form action ="y" >
113              <%

114                //1.list:用于进行分类的列表
115                    //2.doubleList:用于控件联的动显示列表,使用doubleName来记载联动列表的取值
116                    //3.doubleList的取值使用:表达式进行判断,top表示分类列表的取值(实际操作中使用动态列表的赋值)
117             %>
118
119              < s:doubleselect label ="请选择图书" list ="{'a','b'}" doubleName ="book"
120                 doubleList ="top=='a'?{'Java','Struts','Hibernate','Jsp'}:{'其他选项1','其他选项2'}" />
121          </ s:form >
122          < hr >
123          < h3 > 使用s:radio生成多个单选框 </ h3 >
124          < s:form action ="z" >
125         (1)使用简单的集合（数组）生成多个单选框 < br >
126          < s:radio name ="e" label ="请选择图书" labelposition ="top" list ="{'Java','JSP','Struts','Hibernate'}" />
127
128         (2)使用Map集合生成多个单选框 < br >
129          < s:radio name ="f" label ="出版时间" labelposition ="top" list ="#{'Java':'2005','Jsp':'2006','Struts':'2007','Hibernate':'2008'}" listKey ="key" listValue ="value" />
130          < s:bean name ="lee.BookService" id ="bs" />
131
132         (3)使用集合里放多个JavaBean实例来生成多个单选框 < br >
133          < s:radio name ="g" label ="选择图书" labelposition ="top" list ="#bs.books" listKey ="author" listValue ="name" />
134          </ s:form >
135          < hr >
136          < h3 > 提交表单中s:token可以添加隐藏的表单域,以防止页面的重复提交操作. </ h3 >
137          < s:form >
138          < s:token />
139          </ s:form >
140      </ body >
141 </ html >

相关:

1 web.xml
2 <? xml version="1.0" encoding="UTF-8" ?>
3 < web-app id ="WebApp_ID" version ="2.4"
4     xmlns ="http://java.sun.com/xml/ns/j2ee"
5     xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"
6     xsi:schemaLocation ="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >
7      < display-name > Struts2Hello </ display-name >
8      < filter >
9          < filter-name > struts2 </ filter-name >
10          < filter-class >
11             org.apache.struts2.dispatcher.FilterDispatcher
12          </ filter-class > 
13      </ filter >
14      < filter-mapping >
15          < filter-name > struts2 </ filter-name >
16          < url-pattern > /* </ url-pattern > 
17      </ filter-mapping >
18      < welcome-file-list >
19          < welcome-file > index.html </ welcome-file >
20          < welcome-file > index.htm </ welcome-file >
21          < welcome-file > index.jsp </ welcome-file >
22          < welcome-file > default.html </ welcome-file >
23          < welcome-file > default.htm </ welcome-file >
24          < welcome-file > default.jsp </ welcome-file >
25      </ welcome-file-list >
26 </ web-app >
27

1 struts.xml
2 <! DOCTYPE struts PUBLIC
3          "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
4          "http://struts.apache.org/dtds/struts-2.0.dtd" >
5 < struts >
6      < include file ="struts-default.xml" /> 
7
8      < package name ="TagDemo" extends ="struts-default" > 
9          < action name ="*" > 
10              < result > /{1}.jsp </ result > 
11          </ action >
12      </ package >
13 </ struts >
14

1 Book.java
2 package com.pojo;
3
4 import java.io.Serializable;
5
6 /** */ /**
7 * @author Administrator
8 * @version 2008 08 17
9 */
10 public class Book implements Serializable

{
11    /** *//**
12     *
13     */
14    private static final long serialVersionUID = -4565886033215350973L;
15    private String name;
16    private String author;
17
18    public Book()

{
19
20 }
21
22 public Book(final String name, final String author)

{
23        super();
24        this.name = name;
25        this.author = author;
26    }
27
28    public String getName()

{
29        return name;
30    }
31
32    public void setName(final String name)

{
33        this.name = name;
34    }
35
36    public String getAuthor()

{
37        return author;
38    }
39
40    public void setAuthor(final String author)

{
41 this.author = author;
42 }
43
44}
45

1 BookDAO.java
2 package com.DAO;
3
4 import com.pojo.Book;
5
6 /** */ /**
7 * @author ∪∩BUG E-mail: [email protected]
8 * @version Aug 17, 2008 11:29:49 PM 类说明
9 */
10
11 public class BookDAO

{
12 //业务方法
13 public Book[] getBooks()

{
14 return new Book[]

{ new Book("a", "Struts"), new Book("b", "JSP"),
15 new Book("c", "J2EE"), new Book("d", "Hibernate") };
16 }
17}
18

struts２.０学习笔记（二）－－常用UI标记

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