java画word 饼图 java实现饼图

<%@ page language="java" contentType="image/png;charset=GBK" pageEncoding="GBK"
 import="java.awt.*, javax.imageio.*,java.awt.geom.*,java.awt.image.*"%><%!// 绘制饼图的说明
    public void drawTips(String tips, Color color, Arc2D.Double arc2d, Graphics2D g2d) {
        Arc2D.Double position = arc2d;
        position.setAngleExtent(arc2d.getAngleExtent() / 2);
        position.x = arc2d.x - 15;
        position.y = arc2d.y - 15;
        position.width = arc2d.getWidth() + 50;
        position.height = arc2d.getHeight() + 50;
        Point2D.Double endPoint = (Point2D.Double) position.getEndPoint();
        g2d.setPaint(color);
        int stringLength = g2d.getFontMetrics().stringWidth(tips);
        if (endPoint.x <= arc2d.getCenterX())
            g2d.drawString(tips, (float) endPoint.x - stringLength,
            (float) endPoint.y);
        else {
            g2d.drawString(tips, (float) endPoint.x, (float) endPoint.y);
        }    }
%><%
    // 清空缓冲区
    response.reset();    // 注意这里的MIME类型
    response.setContentType("image/png");    // 创建一个 500X375 的图像
    int width = 500, height = 375;    BufferedImage image = new BufferedImage(width, height,
    BufferedImage.TYPE_INT_RGB);
    // 创建Java2D对象
    Graphics2D g2d = image.createGraphics();    // 填充整个背景
    g2d.setPaint(Color.WHITE);    g2d.fillRect(0, 0, width, height);
    // 绘制阴影，由灰色渐进圆角矩形组成
    GradientPaint grayGP = new GradientPaint(0, 0, Color.GRAY, width,    height, new Color(218, 214, 212), false);
    g2d.setPaint(grayGP);
    RoundRectangle2D.Float bgRR = new RoundRectangle2D.Float(5, 5,
    width - 5, height - 5, 50, 50);
    g2d.fill(bgRR);
    // 绘制渐进蓝色圆角矩形背景
    GradientPaint blueGP = new GradientPaint(0, 0, new Color(252, 197,    113), width / 2, height / 2, new Color(255, 255, 169), true);
    g2d.setPaint(blueGP);
    g2d.fillRoundRect(0, 0, width - 5, height - 5, 50, 50);
    // 绘制深蓝色圆角矩形轮廓
    BasicStroke bs = new BasicStroke(1.2f);    g2d.setStroke(bs);
    g2d.setPaint(new Color(55, 71, 105));
    g2d.drawRoundRect(0, 0, width - 5, height - 5, 50, 50);
    // 绘制图表标题
    //String chartTitle = "客户构成分析";    g2d.setColor(Color.BLACK);
    g2d.setFont(new Font("宋体", Font.PLAIN, 30));
    //int stringLength = g2d.getFontMetrics().stringWidth(chartTitle);
    //g2d.drawString(chartTitle, (width - stringLength) / 2, 30);
    // 定义圆弧
    Arc2D.Double arc2d = new Arc2D.Double();    double startAngle = 30.0, arcAngle = 0.0;
    double rectWidth = 295.0, rectHeight = 245.0;
    Point2D.Double p2d = new Point2D.Double((width - rectWidth) / 2, 70.0);
    int arcType = Arc2D.PIE;
    Color color[] = new Color[5];
    color[0] = new Color(99, 99, 0);
    color[1] = new Color(255, 169, 66);
    color[2] = new Color(33, 255, 66);
    color[3] = new Color(33, 0, 255);
    color[4] = new Color(255, 0, 66);
    double bookSales[] = new double[5];
    double totalSales = 0.0;
    // 定义厚度
    int thickness = 25;    for (int i = 0; i < bookSales.length; i++) {
        bookSales[i] = 1 + Math.random() * 99;
        totalSales += bookSales[i];
    }
    // 绘制起始角度不大于90度的圆弧
    startAngle = 30;    for (int i = 0; i < bookSales.length; i++) {
        arcAngle = bookSales[i];
        if (startAngle >= 90) {
            break;
        }
        for (int j = thickness; j > 0; j--) {
            g2d.setColor(color[i].darker());
            arc2d = new Arc2D.Double(p2d.x, p2d.y + j, rectWidth,
            rectHeight, startAngle, arcAngle, arcType);
            // 填充圆弧
            g2d.fill(arc2d);        }
        // 更新圆弧的起始角度
        startAngle += arcAngle;    }
    // 绘制起始角度不小于270度的圆弧
    startAngle = 390;    for (int i = bookSales.length - 1; i > 0; i--) {
        arcAngle = bookSales[i];
        if (startAngle <= 270) {
            break;
        }
        for (int j = thickness; j > 0; j--) {
            g2d.setColor(color[i].darker());
            arc2d = new Arc2D.Double(p2d.x, p2d.y + j, rectWidth,
            rectHeight, startAngle, -arcAngle, arcType);
            // 填充圆弧
            g2d.fill(arc2d);        }
        // 更新圆弧的起始角度
        startAngle -= arcAngle;    }
    // 绘制起始角度在90度到270度之间的圆弧
    startAngle = 30;    for (int i = 0; i < bookSales.length; i++) {
        arcAngle = bookSales[i];
        if (startAngle > 90 && startAngle < 270) {
            for (int j = thickness; j > 0; j--) {
                g2d.setColor(color[i].darker());
                arc2d = new Arc2D.Double(p2d.x, p2d.y + j, rectWidth,
                rectHeight, startAngle + arcAngle, -arcAngle,
                arcType);
                // 填充圆弧
                g2d.fill(arc2d);            }
        }
        // 更新圆弧的起始角度
        startAngle += arcAngle;    }
    // 绘制最上面一层圆弧
    startAngle = 30;    for (int i = 0; i < bookSales.length; i++) {
        arcAngle = bookSales[i];//item.getPercent() * 3.6;
        g2d.setColor(color[i]);
        arc2d = new Arc2D.Double(p2d.x, p2d.y, rectWidth, rectHeight,
        startAngle, arcAngle, arcType);
        // 填充圆弧
        g2d.fill(arc2d);        // 描绘圆弧轮廓
        g2d.setStroke(new BasicStroke(1.2f));        g2d.setPaint(Color.GRAY);
        g2d.draw(arc2d);
        // 更新圆弧的起始角度
        startAngle += arcAngle;        g2d.setFont(new Font("宋体", Font.PLAIN, 12));
    }
    // 部署图形
    g2d.dispose();    // 利用ImageIO类的write方法对图像进行编码
    ServletOutputStream sos = response.getOutputStream();    ImageIO.write(image, "PNG", sos);
    sos.close();
    
    out.clear(); out = pageContext.pushBody();
%>