Jodd
是一個開源項目，
http://jodd.sourceforge.net
，
有一個好用的
jsp
標簽，可以大大簡化有表單輸入的
controller
。
?
使用
Jodd
的優點：
<!--[if !supportLists]-->1.<!--[endif]-->簡化和統一controller，拋棄extends SimpleFormController，統一使用implements Controller的方式。
<!--[if !supportLists]-->2.<!--[endif]-->簡化JSP頁面的bind,不需要一個字段一個字段的綁定。
<!--[if !supportLists]-->3.<!--[endif]-->對bean沒有任何要求，可以使用任意的bean做為formBean.
?
使用方法簡介：
<!--[if !supportLists]-->１．<!--[endif]-->把jodd.jar放到web-inf->lib下，在web.xml里聲名標簽：
<
taglib
>
???????
<
taglib-uri
>
jodd
</
taglib-uri
>
???????
<
taglib-location
>
/WEB-INF/lib/jodd.jar
</
taglib-location
>
????
</
taglib
>
?
<!--[if !supportLists]-->２．<!--[endif]-->任意的一個javaBean做為FormBean
package
?caike;?
public
?
class
?User?{
???????
private
?String?userName;?
???????
private
?String?password;
?????
???????
public
?String?getPassword()?{
??????????????
return
?password;
???????}?
???????
public
?
void
?setPassword(String?pwd)?{
??????????????
this
.password?
=
?pwd;
???????}?
???????
public
?String?getUserName()?{
??????????????
return
?userName;
???????}?
???????
public
?
void
?setUserName(String?username)?{
??????????????
this
.userName?
=
?username;
???????}
?
}
<!--[if !supportLists]-->３．<!--[endif]-->在JSP頁面使用jodd tag:,比如對應用戶登錄頁面的
<%
@page?import
=
"
caike.User
"
%>
<%
@taglib?uri
=
"
jodd
"
?prefix
=
"
jodd
"
%>
?
<
jodd:form?
beans
="user"
?scopes
="session"
>
<
form?
action
="my.htm"
?method
="post"
?
>
?
????
<
table?
width
="300"
?border
="0"
?cellspacing
="0"
?cellpadding
="0"
???????align
="center"
?class
="white"
>
?
???????
<
tr
>
???????????
<
td?
height
="32"
?align
="right"
?width
="107"
>
用戶名：
</
td
>
???????
<
td?
height
="32"
?width
="193"
><
input?
type
="text"
?name
="userName"
??????????????class
="input"
?size
="20"
>
?
</
td
>
???????? ?
???????
</
tr
>
???????
<
tr
>
???????????
<
td?
height
="33"
?align
="right"
?width
="107"
>
密碼：
</
td
>
???????????
<
td?
height
="33"
?width
="193"
><
input?
type
="password"
?name
="password"
??????????????class
="input"
?size
="21"
></
td
>
???????
</
tr
>
??????
????????
<
tr
>
???????????
<
td?
height
="69"
?align
="center"
?colspan
="2"
>
????????????
<
input?
type
="submit"
?name
="Submit"
?value
="登錄"
>
???????
</
tr
>
????
</
table
>
</
form
>
</
jodd:form
>
?
<!--[if !supportLists]-->４．<!--[endif]-->Dispatch-servelt.xml中對controller的配置
<bean id="myController" class="caike.MyController">????
??? </bean>
???
不再需要這種方式：
???
<!--
?????? <bean id="myController" class="caike.MyFormController">????
?????? <property name="commandClass" value="caike" />??????
?????? <property name="formView" value="userForm" />???
?????? </bean>
??? -->
<!--[if !supportLists]-->５．<!--[endif]-->在controller中取出user
package
?caike;?
import
?javax.servlet.http.HttpServletRequest;
import
?javax.servlet.http.HttpServletResponse;?
import
?jodd.bean.BeanUtil;?
import
?org.springframework.web.servlet.ModelAndView;
import
?org.springframework.web.servlet.mvc.Controller;
?
public
?
class
?MyController?
implements
?Controller?{
?
???????
public
?ModelAndView?handleRequest(HttpServletRequest?request,
?????????????????????HttpServletResponse?response)?
throws
?Exception?{
?
??????????????User?user?
=
?
new
?User();
??????????????BeanUtil.load(user,?request);
??????????????System.out.println(
"
用戶名:
"
?
+
?user.getUserName()?
+
?
"
?密碼:
"
?
+
?user.getPassword());
??????????????
return
?
null
;
???????}
?
}
?
需要注意的地方：
表單中對應的名字
name
和
javaBean
里對應的屬性名要相同。
<input type="text"
name="userName"
????????????? class="input" size="20">
public class User {
?????? private String userName;
.......
?參考：
http://www.aygfsteel.com/calvin/archive/2005/08/24/10914.html
簡化Spring(4)--View層
posted on 2006-11-10 15:20
★yesjoy★ 閱讀(1394)
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