dateconverterbean.java

想学习EJB的同学

/*
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 * and open the template in the editor.
 */
package ejb3.day3;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.Stateless;
import javax.jws.WebMethod;
import javax.jws.WebParam;
import javax.jws.WebResult;
import javax.jws.WebService;

/**
 *
 * @author user
 */
@Stateless(mappedName="ejb/dcb")
@WebService(
name="DateConverter",
serviceName="DateConverterService",
 portName="DateConverterPort")
public class DateConverterBean implements DateConverterRemote {
    @WebMethod
    @WebResult(name="date")
    public Date getDate(
            @WebParam(name="dateStr") String dateStr, 
            @WebParam(name="pattern") String pattern) {
        try {
            SimpleDateFormat sdf = new SimpleDateFormat(pattern);
            return sdf.parse(dateStr);
        } catch (ParseException ex) {
            Logger.getLogger(DateConverterBean.class.getName()).log(Level.SEVERE, null, ex);
            throw new IllegalArgumentException(ex);
        }
    }
    @WebMethod
    @WebResult(name="dateStr")
    public String getText(
            @WebParam(name="date") Date date, 
            @WebParam(name="pattern") String pattern) {
        SimpleDateFormat sdf = new SimpleDateFormat(pattern);
        return sdf.format(date);
    }

    @WebMethod
    @WebResult(name="text")
    public String toText(
            @WebParam(name="date") MyDate date, 
            @WebParam(name="pattern") String pattern) {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.YEAR, date.getYear());
        cal.set(Calendar.MONTH, date.getMonth() - 1);
        cal.set(Calendar.DAY_OF_MONTH, date.getDay());
        SimpleDateFormat sdf = new SimpleDateFormat(pattern);
        return sdf.format(cal.getTime());
    }
    
    
    // Add business logic below. (Right-click in editor and choose
    // "EJB Methods > Add Business Method" or "Web Service > Add Operation")
}