myGraphicsGeneration.java
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import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
/**
* @Description: TODO
* @author: charles
* @date: 2022年10月15日 12:57
*/
public class myGraphicsGeneration {
/**
* 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 static 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 static 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();
ImageIO.write(image,"png", fos);
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
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%"}};
myGraphicsGeneration(tableData2, "myPic.png");
} catch (Exception e) {
e.printStackTrace();
}
}
}