如果我們的表單有很多的輸入選項(xiàng)，如果都放置在一個(gè)頁面上，會(huì)導(dǎo)致頁面過多，如果我們能把這些輸入分散到幾個(gè)頁面上，按向?qū)У姆绞教顚?，在最后一頁上進(jìn)行提交，勢(shì)必會(huì)帶來良好的可操作性，使用Spring MVC 架構(gòu)中的AbstractWizardFormController控制器，可以很輕松的完成以上功能
（1）配置文件：web.xml?
?
<?
xml?version="1.0"?encoding="UTF-8"
?>
<
web-app?
version
="2.4"
?
????xmlns
="http://java.sun.com/xml/ns/j2ee"
?
????xmlns:xsi
="http://www.w3.org/2001/XMLSchema-instance"
?
????xsi:schemaLocation
="http://java.sun.com/xml/ns/j2ee?
????http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
>
??
<
context-param
>
????
<
param-name
>
contextConfigLocation
</
param-name
>
????
<
param-value
>
/WEB-INF/train-servlet.xml
</
param-value
>
??
</
context-param
>
??
<
servlet
>
????
<
servlet-name
>
train
</
servlet-name
>
????
<
servlet-class
>
org.springframework.web.servlet.DispatcherServlet
</
servlet-class
>
????
<
load-on-startup
>
0
</
load-on-startup
>
??
</
servlet
>
??
<
servlet-mapping
>
?????
<
servlet-name
>
train
</
servlet-name
>
?????
<
url-pattern
>
*.mvc
</
url-pattern
>
??
</
servlet-mapping
>
???
<
listener
>
?????
<
listener-class
>
org.springframework.web.context.ContextLoaderListener
</
listener-class
>
???
</
listener
>
????
??
<
filter
>
????
<
filter-name
>
character
</
filter-name
>
????
<
filter-class
>
Action.CharacterFilter
</
filter-class
>
??
</
filter
>
??
<
filter-mapping
>
????
<
filter-name
>
character
</
filter-name
>
????
<
url-pattern
>
/*
</
url-pattern
>
??
</
filter-mapping
>
??
<
welcome-file-list
>
????
<
welcome-file
>
index.jsp
</
welcome-file
>
??
</
welcome-file-list
>
</
web-app
>
?
（2）控制器類
?? 其中successView是最后表單提交成功后的回顯頁面，由spring注入
?????????? cancelView是中途取消提交過程后的返回頁面，由spring注入
?????????? vote為我們表單對(duì)應(yīng)的javabean
???
???????? 繼承了AbstractWizardFormController，所以必須實(shí)現(xiàn)他的abstract mothed---processFinish。也就是說，若果繼承了AbstractWizardFormController，你僅需要實(shí)現(xiàn)這個(gè)方法。當(dāng)所有的頁面表單填寫完將調(diào)用這個(gè)方法。 processCancel方法不是必須實(shí)現(xiàn)的，他是在你填寫某一步表單時(shí)想取消，按取消按鈕時(shí)調(diào)用。
package
?Action;
import
?java.util.Enumeration;
import
?javax.servlet.http.HttpServletRequest;
import
?javax.servlet.http.HttpServletResponse;
import
?model.Vote;
import
?org.springframework.validation.BindException;
import
?org.springframework.web.servlet.ModelAndView;
import
?org.springframework.web.servlet.mvc.AbstractWizardFormController;
import
?org.springframework.web.util.WebUtils;
public
?
class
?FeedBackWizardController?
extends
?AbstractWizardFormController?
{
????
private
?String?successView;
????
private
?String?cancelView;
????
public
?String?getCancelView()?
{
????
????????
return
?cancelView;
????}
????
public
?
void
?setCancelView(String?cancelView)?
{
????????
this
.cancelView?
=
?cancelView;
????}
????
public
?String?getSuccessView()?
{
????????
return
?successView;
????}
????
public
?
void
?setSuccessView(String?successView)?
{
????????
this
.successView?
=
?successView;
????}
????
protected
?ModelAndView?processCancel(HttpServletRequest?arg0,?HttpServletResponse?arg1,?Object?arg2,?BindException?arg3)?
throws
?Exception?
{
???????
return
?
new
?ModelAndView(
this
.getCancelView());
????}
?
????
protected
?ModelAndView?processFinish(HttpServletRequest?request,
????????????HttpServletResponse?response,?Object?object,?BindException?exception)
????????????
throws
?Exception?
{
????????Vote?vote
=
(Vote)object;
????????
????????
return
?
new
?ModelAndView(
this
.getSuccessView(),
"
vote
"
,vote);
????}
}
JavaBean:
package
?model;
public
?
class
?Vote?
{
???
private
?String?id;
???
private
?String?name;
???
private
?String?option;
???
private
?String?result;
public
?String?getId()?
{
????
return
?id;
}
public
?
void
?setId(String?id)?
{
????
this
.id?
=
?id;
}
public
?String?getName()?
{
????
return
?name;
}
public
?
void
?setName(String?name)?
{
????
this
.name?
=
?name;
}
public
?String?getOption()?
{
????
return
?option;
}
public
?
void
?setOption(String?option)?
{
????
this
.option?
=
?option;
}
public
?String?getResult()?
{
????
return
?result;
}
public
?
void
?setResult(String?result)?
{
????
this
.result?
=
?result;
}
?
}
?
配置文件：
?
<
bean?
id
="simpleUrlMapping"
?class
="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"
>
?
<
property?
name
="mappings"
>
???
<
props
>
?????
<
prop?
key
="/feedback.mvc"
>
FeedbackController
</
prop
>
?
???
</
props
>
?
</
property
>
</
bean
>
<!--
?使用AbstractWizardFormController控制器?
-->
<
bean?
id
="FeedbackController"
?class
="Action.FeedBackWizardController"
>
??
<
property?
name
="successView"
><
value
>
formWizard/thankyou
</
value
>
?
</
property
>
??
<
property?
name
="cancelView"
><
value
>
formWizard/first
</
value
>
?
</
property
>
?
??
<
property?
name
="commandClass"
><
value
>
model.Vote
</
value
></
property
>
??
<!--
-配置操作類->
??<property?name="pages">
????<list>??<!---此處定義表單向?qū)У捻撁媪黜樞颍獓?yán)格執(zhí)行這里配置的順序->
??????<value>formWizard/first</value>
??????<value>formWizard/id</value>
??????<value>formWizard/name</value>
??????<value>formWizard/option</value>
??????<value>formWizard/result</value>
????</list>
??</property>
</bean>
<bean?id="viewResolver"?class="org.springframework.web.servlet.view.InternalResourceViewResolver">
??<property?name="prefix">
????<value>/</value>
??</property>
??<property?name="suffix">
????<value>.jsp</value>
??</property>
</bean>
我們執(zhí)行feedback.mvc時(shí)候，默認(rèn)首先訪問第一順位的頁面first.jsp
first.jsp:
?
<%
@?page?language
=
"
java
"
?contentType
=
"
text/html;?charset=GB18030
"
????pageEncoding
=
"
GB18030
"
%>
<!
DOCTYPE?html?PUBLIC?"-//W3C//DTD?HTML?4.01?Transitional//EN"?"http://www.w3.org/TR/html4/loose.dtd"
>
<
html
>
<
head
>
<
meta?
http-equiv
="Content-Type"
?content
="text/html;?charset=GB18030"
>
<
title
>
Insert?title?here
</
title
>
</
head
>
<
body
>
<
FORM?
action
="feedback.mvc"
?method
="post"
>
?
<
TABLE
>
??
<
TBODY
>
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