?/font>
SpringSide
里翻C个好东西Q?
jodd:form
"
Jodd Form的用极其简单，因ؓ太简单了Q才会名不见l传而被我们选用Q让我们|顾各大Framework的Form TagQ?/font>
他只要把<form>的头以<jodd:form bean= "mybean">包住卛_Q就会自动绑定mybean的所有同名属性到普通html标记--input, selectbox, checkbox,radiobox.....在这些input框里不用再写M代码
可见Q它的好处一是节U代码，二是保留了html版的form tag, 不需要用一套taglib来代?/strong>
而且支持内嵌对象的绑定，如book.category.name?/font>
比那些需要用非Uhtml标记?lt;ww:input>Q逐个l定input框，select框的Form TagQ虽减了些许灉|性，但实在方便得太厉実?/font>
如果属性来自于requestQ而不是某个java beanQ写<jodd:form bean= "request">
jodd采用的是普通的bean反射Q调用所有属性的toString()函数?/font>
注意Qjodd在html tag不含value="xxx"属性时才会自动l定。如果某个input框你不希望jodd自动l定Q或者默认的toString()不能满要求Ӟ可以手工input框写?value="xxxx"Qjodd看到你已l定义了属性|׃自动l开?br />
"
<
form
name
="form1"
action
="action.do?method=save"
/>
" method="post">
<
jodd:form
bean
="form1"
scope
="request"
>
<
table
class
="border"
width
="90%"
cellSpacing
=0
cellPadding
=2
align
="center"
>
<
tr
>
<
td
width
="160"
class
="left"
>
姓名
</
td
>
<
td
colspan
="3"
class
="right"
>
<
input
name
="name"
type
="text"
class
="text"
size
="40"
>
<
label
class
="star"
>
*
</
label
>
</
td
>
</
tr
>
<
tr
>
<
td
width
="160"
class
="left"
>
性别
</
td
>
<
td
width
="303"
class
="right"
>
<
input
name
="sex"
type
="text"
class
="text"
size
="40"
>
<
label
class
="star"
>
*
</
label
>
</
td
>
</
tr
>
</
table
>
</
jodd:form
>
</
form
>
实好用Q?/p>
Jodd 是一个开源项目， http://jodd.sourceforge.net Q?/span> 有一个好用的 jsp 标签Q可以大大简化有表单输入?/span> controller ?/span>
使用
Jodd
的优点：
<!--[if !supportLists]-->1.<!--[endif]-->化和l一controllerQ抛?/span>extends SimpleFormControllerQ统一使用implements Controller的方式?/span>
<!--[if !supportLists]-->2.<!--[endif]-->?/span>JSP面?/span>bind,不需要一个字D一个字D늚l定?/span>
<!--[if !supportLists]-->3.<!--[endif]-->?/span>bean没有M要求Q可以用Q意的bean做ؓformBean.
使用Ҏ介：
<!--[if !supportLists]-->Q．<!--[endif]-->?/span>jodd.jar攑ֈweb-inf->lib下，?/span>web.xml里声名标{：
<
taglib
>
< taglib-uri > jodd </ taglib-uri >
< taglib-location > /WEB-INF/lib/jodd.jar </ taglib-location >
</ taglib >
< taglib-uri > jodd </ taglib-uri >
< taglib-location > /WEB-INF/lib/jodd.jar </ taglib-location >
</ taglib >
<!--[if !supportLists]-->Q．<!--[endif]-->L的一?/span>javaBean做ؓ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;
}
}
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]-->Q．<!--[endif]-->?/span>JSP面使用jodd tag:,比如对应用户d面?/span>
<%
@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" > 用户名： </ 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" > 密码Q?/span> </ 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 ="d" >
</ tr >
</ table >
</ form >
</ jodd:form >
<% @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" > 用户名： </ 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" > 密码Q?/span> </ 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 ="d" >
</ tr >
</ table >
</ form >
</ jodd:form >
<!--[if !supportLists]-->Q．<!--[endif]-->Dispatch-servelt.xml中对controller的配|?/span>
<bean id="myController" class="caike.MyController">
</bean>
不再需要这U方式：
<!--
<bean id="myController" class="caike.MyFormController">
<property name="commandClass" value="caike" />
<property name="formView" value="userForm" />
</bean>
-->
<!--[if !supportLists]-->Q．<!--[endif]-->?/span>controller中取?/span>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( " 用户? " + user.getUserName() + " 密码: " + user.getPassword());
return null ;
}
}
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( " 用户? " + user.getUserName() + " 密码: " + user.getPassword());
return null ;
}
}
需要注意的地方Q?/span>
表单中对应的名字 name ?/span> javaBean 里对应的属性名要相同?/span>
<input type="text" name="userName"
class="input" size="20">
public class User {
private String userName;
.......
http://www.aygfsteel.com/calvin/archive/2005/08/24/10914.html
]]>