So far I'm doing this by registering a custom implementation of
Converter which I instantiate with a suitable instance of
SimpleDateFormat before calling BeanUtilsBean.copyProperties().
There's also the beanutils.locale package, which provides Locale-aware
conversions and includes support for java.util.Date (I think) out of the
box. Unfortunately, it's not obvious how to use it. I posted a thread on
the commons-user list asking for guidance, though I haven't seen a
response yet.
For what it's worth, here's a rough outline of doing this the 'easy'
(i.e. inelegant!) way:
final SimpleDateFormat sdf = ...
BeanUtilsBean utils = new BeanUtilsBean();
ConvertUtilsBean ctuils = utils.getConvertUtils();
cutils.register(new Converter() {
public Object convert(Class clazz, Object value) {
return sdf.parse((String) value);
},
Date.class);
utils.copyProperties(...
That's untested code, and the implementation of convert() should incude
checks for value being null, not a String, etc and handling for if the
date can't be parsed... but it gives you the rough idea.
L.
Yujun Liang wrote:
Hello,
I am working on a project using Struts. Struts uses BeanUtil to populate Action Form Bean. This is such a nice framework to work with, except,
BeanUtil doesn't support java.util.Date conversion. But when I use java.sql.Timestamp, it asks for the format of
yyyy-mm-dd hh:mm:ss.fffffffff
Here is the exception when I enter other format,
Caused by: java.lang.IllegalArgumentException: Timestamp format must be
yyyy-mm-dd hh:mm:ss.fffffffff
In a web application, it is not reasonable to ask user to input yyyy-mm-dd
hh:mm:ss.fffffffff.
Also, it doesn't support Locale.
Do you have experience getting java.util.Date populated in a Java Bean inside a
FormBean?
Thanks in advance.
Regards
Yujun Liang
[EMAIL PROTECTED]
(0408) 467 448
1. Form Bean Definition,
<form-bean name="myForm" type="org.apache.struts.validator.DynaValidatorForm">
<form-property name="mybean" type="com.mycompany.myproject.bean.MyBean"/>
</form-bean>
2. Java Bean,
package com.mycompany.myproject.bean;
import java.io.Serializable;
import java.sql.Timestamp;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;
public abstract class MyBean implements Serializable {
private long interchangeId;
private Timestamp creationTime;
private String originatingChannel;
public long getInterchangeId() {
return this.interchangeId;
}
public void setInterchangeId(long interchangeId) {
this.interchangeId = interchangeId;
}
public Timestamp getCreationTime() {
return this.creationTime;
}
public void setCreationTime(Timestamp creationTime) {
this.creationTime = creationTime;
}
public String getOriginatingChannel() {
return this.originatingChannel;
}
public void setOriginatingChannel(String originatingChannel) {
this.originatingChannel = originatingChannel;
}
}
3. HTML Form
<input name="mybean.creationTime" type="text" size="30" maxlength="30"
value="25/10/2005">
<input name="mybean.originatingChannel" type="text" size="40" maxlength="40"
value="originating channel1">
<input name="mybean.originatingChannelUserId" type="text" size="60" maxlength="60"
value="originating_channel_userid1">
4. Exception.
[28/10/05 14:05:42:623 EST] 3f64a3f WebGroup E SRVE0026E: [Servlet
Error]-[BeanUtils.populate]: org.apache.commons.beanutils.ConversionException:
Timestamp format must be yyyy-mm-dd hh:mm:ss.fffffffff
at
org.apache.commons.beanutils.converters.SqlTimestampConverter.convert(SqlTimestampConverter.java:117)
at
org.apache.commons.beanutils.ConvertUtilsBean.convert(ConvertUtilsBean.java:428)
at
org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:1004)
at org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:811)
at org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:298)
at org.apache.struts.util.RequestUtils.populate(RequestUtils.java:493)
at
org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:805)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:203)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
at
com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
at
com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at
com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
at
com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
at
com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
at
com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java:40)
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