pointconverter3.java

来自「利用struts2的验证框架」· Java 代码 · 共 46 行

package com.test.converter;

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

import org.apache.struts2.util.StrutsTypeConverter;

import com.test.model.Point;

public class PointConverter3 extends StrutsTypeConverter {

	@Override
	public Object convertFromString(Map arg0, String[] arg1, Class arg2) {
		
		List<Point> list = new ArrayList<Point>();
		
		for(String value : arg1){
			Point point = new Point();
			String[] params = value.split(",");
			point.setX(Integer.parseInt(params[0]));
			point.setY(Integer.parseInt(params[0]));
			
			list.add(point);
		}
		return list;
	}

	@Override
	public String convertToString(Map arg0, Object arg1) {
		
		List<Point> list = (List<Point>)arg1;
		
		StringBuffer sb = new StringBuffer();
		sb.append("[ ");
		
		for (Point point : list) {
			sb.append("(").append(point.getX()).append(",").append(point.getY()).append(")");
		}
		
		sb.append(" ]");
		return sb.toString();
	}

}