jsf自定义组件-jafyear选择年份
2008-04-10 18:48
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就是一个下拉框,可以配置选取的范围,用today表示当期年份,输入简单表达式。
package com.cfcc.jaf.webx.component.jafdate.jafyear;
import javax.faces.component.UIComponentBase;
import javax.faces.context.FacesContext;
/** *//**
* 年份选择框组件
* @author qinjinwei
* $date 2007-9-12 上午09:52:28
*/
public class JafYear extends UIComponentBase ...{
public final String JAF_DATE_FAMILY = "jaf.jafdate";
public String getFamily() ...{
return JAF_DATE_FAMILY;
}
public Object saveState(FacesContext context) ...{
Object values[] = new Object[1];
values[0] = super.saveState(context);
return values;
}
public void restoreState(FacesContext context, Object state) ...{
Object values[] = (Object[]) state;
super.restoreState(context, values[0]);
}
}
package com.cfcc.jaf.webx.component.jafdate.jafyear;
import java.io.IOException;
import java.util.Date;
import java.util.Map;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
import javax.faces.el.ValueBinding;
import org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlRenderer;
/** *//**
* 年份选择框组件renderer
* @author qinjinwei
* $date 2007-9-12 上午09:52:30
*/
public class JafYearRenderer extends HtmlRenderer ...{
public void encodeEnd(FacesContext facesContext, UIComponent component)
throws IOException ...{
String sfrom = (String) component.getAttributes().get("from");
String sto = (String) component.getAttributes().get("to");
int ifrom = convert(sfrom) + 1900;
int ito = convert(sto) + 1900;
ResponseWriter writer = facesContext.getResponseWriter();
String clientId = component.getClientId(facesContext);
ValueBinding vb = component.getValueBinding("value");
String syear = (String) vb.getValue(facesContext);
if(syear == null)
...{
syear = "" + (new Date().getYear() + 1900 );
}
int year = Integer.parseInt(syear);
writer.write(" ");
for (int i = ifrom; i
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