JAVA抓取鼠标所在位置色素RGB

package com.goma.keysprite;import java.awt.AWTException;import java.awt.Dimension;import java.awt.Rectangle;import java.awt.Robot;import java.awt.Toolkit;import java.awt.image.BufferedImage;public class GetColorRGB {    /**     * DESC:函数返回值为颜色的RGB值。     * @param x     * @param y     * @return     * @throws AWTException     */public int getPixel(int x, int y) throws AWTException {Robot rb = new Robot(); //在此用来抓取屏幕，即截屏。详细可见APIToolkit tk = Toolkit.getDefaultToolkit(); // 获取缺省工具包Dimension di = tk.getScreenSize(); //屏幕尺寸规格Rectangle rec = new Rectangle(0, 0, di.width, di.height);BufferedImage bi = rb.createScreenCapture(rec);int pixelColor = bi.getRGB(x, y);//获得自定坐标的像素值// pixelColor的值为负，经过实践得出：加上颜色最大值就是实际颜色值。return 16777216 + pixelColor; }}