viewresultaction.java

利用struts2的验证框架

package com.test.action;

import java.awt.Font;
import java.util.List;
import java.util.Map;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.CategoryLabelPositions;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class ViewResultAction extends ActionSupport {
	
	private JFreeChart chart;
	
	private List<String> interest;
	
	
	
	@SuppressWarnings("unchecked")
	private void increaseResult(List<String> list) {
		
		ActionContext context = ActionContext.getContext();
		
		@SuppressWarnings("unused")
		Map map = context.getApplication();
		
		for (String str : list) {
			
			if(null == map.get(str)){
				map.put(str, 1);
			}else{
				map.put(str, (Integer)map.get(str) + 1);
			}
			
		}
		
	}
	
	
	@SuppressWarnings("unchecked")
	private CategoryDataset getDataset(){
		
		DefaultCategoryDataset dataset = new DefaultCategoryDataset();
		
		this.increaseResult(this.getInterest());
		
		ActionContext context = ActionContext.getContext();
		
		Map map = context.getApplication();
		
		dataset.setValue((Integer)map.get("football"), "", "足球");
		dataset.setValue((Integer)map.get("basketball"), "", "篮球");
		dataset.setValue((Integer)map.get("tableball"), "", "乒乓球");
		
		
		return dataset;
	}
	

	
	@Override
	public String execute() throws Exception {
		// TODO Auto-generated method stub
		return super.execute();
	}

	public JFreeChart getChart() {
		
		chart = ChartFactory.createBarChart3D("兴趣统计结果", "项目", "结果", this.getDataset(), PlotOrientation.VERTICAL, false, false, false);
		
		chart.setTitle(new TextTitle("兴趣统计结果",new Font("黑体",Font.BOLD,22)));
		
		CategoryPlot plot = (CategoryPlot)chart.getPlot();
		
		CategoryAxis axis = plot.getDomainAxis();
		
		axis.setLabelFont(new Font("宋体",Font.BOLD,22));
		
		axis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);
		
		NumberAxis numberAxis = (NumberAxis)plot.getRangeAxis();
		
		numberAxis.setLabelFont(new Font("宋体",Font.BOLD,22));
		
		return chart;
	}
	
	public List<String> getInterest() {
		return interest;
	}

	public void setInterest(List<String> interest) {
		this.interest = interest;
	}
	

}