struts2\src\com\test\converter

package com.test.service.impl;

import com.test.service.LoginService;

public class LoginServiceImpl implements LoginService
{
	public boolean isLogin(String username, String password)
	{
		if ("hello".equals(username) && "world".equals(password))
		{
			return true;
		}

		return false;
	}

}

package com.test.listener;

import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.PreResultListener;

public class MyListener implements PreResultListener
{

	public void beforeResult(ActionInvocation invocation, String resultCode)
	{
		System.out.println("result : " + resultCode);
	}

}

package com.test.converter;

import java.util.Map;

import ognl.DefaultTypeConverter;

import com.test.bean.Point;

public class PointConverter extends DefaultTypeConverter
{

	@Override
	public Object convertValue(Map context, Object value, Class toType)
	{
		if(Point.class == toType)
		{
			Point point = new Point();
			
			String[] str = (String[])value;
			
			String[] paramValues = str[0].split(",");
			
			int x = Integer.parseInt(paramValues[0]);
			int y = Integer.parseInt(paramValues[1]);
			
			point.setX(x);
			point.setY(y);
			
			return point;
		}
		if(String.class == toType)
		{
			Point point = (Point)value;
			
			int x = point.getX();
			int y = point.getY();
			
			String result = "[x=" + x + " , y=" + y + "]";
			
			return result;
		}
		
		return null;
	}
	
}

package com.test.converter;

import java.util.Map;

import org.apache.struts2.util.StrutsTypeConverter;

import com.test.bean.Point;

public class PointConverter2 extends StrutsTypeConverter
{

	@Override
	public Object convertFromString(Map context, String[] values, Class toClass)
	{
		Point point = new Point();
		
		String[] paramValues = values[0].split(",");
		
		int x = Integer.parseInt(paramValues[0]);
		int y = Integer.parseInt(paramValues[1]);
		
		point.setX(x);
		point.setY(y);
		
		return point;
	}

	@Override
	public String convertToString(Map context, Object o)
	{
		Point point = (Point)o;
		
		int x = point.getX();
		int y = point.getY();
		
		String result = "[ x = " + x + " , y = " + y + " ]";
		
		return result;
	}

}

package com.test.converter;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.apache.struts2.util.StrutsTypeConverter;

import com.test.bean.Point;

public class PointConverter3 extends StrutsTypeConverter
{

	@Override
	public Object convertFromString(Map context, String[] values, Class toClass)
	{
		List<Point> list = new ArrayList<Point>();
		
		for(String value : values)
		{
			Point point = new Point();
			
			String[] paramValues = value.split(",");
			
			int x = Integer.parseInt(paramValues[0]);
			int y = Integer.parseInt(paramValues[1]);
			
			point.setX(x);
			point.setY(y);
			
			list.add(point);
		}
		
		return list;
	}

	@Override
	public String convertToString(Map context, Object o)
	{
		List<Point> list = (List<Point>)o;
		
		StringBuilder sb = new StringBuilder();
		
		sb.append("[ ");
		
		int number = 0 ;
		
		for(Point point : list)
		{
			++number;
			
			int x = point.getX();
			int y = point.getY();
			
			sb.append(number).append(" x = ").append(x).append(" , y = ").append(y).append("  ");
		}
		
		sb.append("]");
		
		return sb.toString();
	}

}