主要代码：

/** * 生成图片 * @param cellsValue 以二维数组形式存放 表格里面的值 * @param path 文件保存路径 */ public void myGraphicsGeneration(String cellsValue[][], String path) { // 字体大小 int fontTitileSize = 15; // 横线的行数 int totalrow = cellsValue.length+1; // 竖线的行数 int totalcol = 0; if (cellsValue[0] != null) { totalcol = cellsValue[0].length; } // 图片宽度 int imageWidth = 1024; // 行高 int rowheight = 40; // 图片高度 int imageHeight = totalrow*rowheight+50; // 起始高度 int startHeight = 10; // 起始宽度 int startWidth = 10; // 单元格宽度 int colwidth = (int)((imageWidth-20)/totalcol); BufferedImage image = new BufferedImage(imageWidth, imageHeight,BufferedImage.TYPE_INT_RGB); Graphics graphics = image.getGraphics(); graphics.setColor(Color.WHITE); graphics.fillRect(0,0, imageWidth, imageHeight); graphics.setColor(new Color(220,240,240)); //画横线 for(int j=0;j<totalrow; j++){ graphics.setColor(Color.black); graphics.drawLine(startWidth, startHeight+(j+1)*rowheight, startWidth+colwidth*totalcol, startHeight+(j+1)*rowheight); } //画竖线 for(int k=0;k<totalcol+1;k++){ graphics.setColor(Color.black); graphics.drawLine(startWidth+k*colwidth, startHeight+rowheight, startWidth+k*colwidth, startHeight+rowheight*totalrow); } //设置字体 Font font = new Font("微软雅黑",Font.BOLD,fontTitileSize); graphics.setFont(font); //写标题 String title = "【指标完成进度】"; graphics.drawString(title, startWidth, startHeight+rowheight-10); //写入内容 for(int n=0;n<cellsValue.length;n++){ for(int l=0;l<cellsValue[n].length;l++){ if (n == 0) { font = new Font("微软雅黑",Font.BOLD,fontTitileSize); graphics.setFont(font); }else if (n > 0 && l >0) { font = new Font("微软雅黑",Font.PLAIN,fontTitileSize); graphics.setFont(font); graphics.setColor(Color.RED); } else { font = new Font("微软雅黑",Font.PLAIN,fontTitileSize); graphics.setFont(font); graphics.setColor(Color.BLACK); } graphics.drawString(cellsValue[n][l].toString(), startWidth+colwidth*l+5, startHeight+rowheight*(n+2)-10); } } // 保存图片 createImage(image, path); } /** * 将图片保存到指定位置 * @param image 缓冲文件类 * @param fileLocation 文件位置 */ public void createImage(BufferedImage image, String fileLocation) { try { FileOutputStream fos = new FileOutputStream(fileLocation); BufferedOutputStream bos = new BufferedOutputStream(fos); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(bos); encoder.encode(image); bos.close(); } catch (Exception e) { e.printStackTrace(); } }

测试代码：

public static void main(String[] args) { DrawTableImg cg = new DrawTableImg(); try { String tableData1[][] = {{"8月31日","累计用户数","目标值","完成进度","时间进度", "进度差异"}, {"掌厅客户端（户）","469281","1500000","31.2%","33.6%", "-2.4%"}}; String[][] tableData2 = {{"8月31日（户）","新增用户数","日访问量","累计用户数","环比上月"}, {"合肥和巢湖","469281","1500000","31.2%","33.6%"}, {"芜湖","469281","1500000","31.2%","33.6%"}, {"蚌埠","469281","1500000","31.2%","33.6%"}, {"淮南","469281","1500000","31.2%","33.6%"}, {"马鞍山","469281","1500000","31.2%","33.6%"}, {"淮北","469281","1500000","31.2%","33.6%"}}; cg.myGraphicsGeneration(tableData2, "c:\\myPic.jpg"); } catch (Exception e) { e.printStackTrace(); } }

效果图

以上就是Java生成表格图片的实例代码的详细内容，更多关于Java生成表格图片的资料请关注其它相关文章！