怎样用JAVA实现电子印章？
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发布时间：2022-04-22 08:38
共2个回答
热心网友
时间：2023-08-28 11:17
参考如下代码
package com.wonders.cop.billing.util;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.imageio.ImageIO;
public class ImageMarkLogoUtil {
// 水印透明度
private static float alpha = 1f;
// 水印横向位置
private static int positionWidth = 82;
// 水印纵向位置
private static int positionHeight = 545;
// 水印文字字体
private static Font font = new Font("宋体", Font.PLAIN, 13);
// 水印文字颜色
private static Color color = Color.black;
public static void main(String[] args) {
String srcImgPath = "d:/888880002302900_web.jpg";
String targerTextPath = "d:/qie_text.jpg";
ImageMarkLogoUtil
.markImageByTexts(testValue(),
BillDetailImagePosition.getPosition("888880002302900"), srcImgPath,
targerTextPath);
}
public static Map testValue() {
Map<String, String> value = new HashMap<String, String>();
value.put("feedPrice", "15.1");
value.put("feedCount", "20");
value.put("nowNum", "124");
value.put("drainageCount", "55");
value.put("drainagePrice", "1.5");
value.put("feedCost", "66");
value.put("cost", "66");
value.put("drainageCost", "100");
value.put("barcode", "10101010101010101");
value.put("nextCopy", "2014-12-10");
value.put("waterType", "居民生活用水");
value.put("meterReader", "测试人员");
value.put("copyNumber", "741sg");
value.put("prevCarryOver", "0.25");
value.put("nowCarryOver", "2.12");
value.put("openDate", "20141002");
value.put("nextMonth", "201402 ");
value.put("remark", "您缴付的2013年03月30.80元水费,我公司已收到,谢谢!");
value.put("detailStatus", "00");
value.put("billStatus", "00");
value.put("prevMonth", "201406");
value.put("lastPayDate", "20140112");
value.put("companyName", "市北水");
value.put("type", "1");
value.put("amount", "58.1");
value.put("address", "浦秀路220弄10号101");
value.put("year","2014");
value.put("month", "04");
value.put("billId", "11111");
value.put("account", "38445450");
value.put("companyId", "888880002302900");
value.put("realName", "姚航");
return value;
}
/**
* 给图片添加水印文字、可设置水印文字的旋转角度
*
* @param logoText
* @param srcImgPath
* @param targerPath
* @param degree
*/
public static void markImageByTexts(Map<String, String> value,
Map<String, String[]> position, String srcImgPath, String targerPath) {
InputStream is = null;
OutputStream os = null;
try {
// 1、源图片
Image srcImg = ImageIO.read(new File(srcImgPath));
BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),
srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB);
// 2、得到画笔对象
Iterator<String> positionIter = position.keySet().iterator();
String key = "";
String logotext = "";
String[] xy;
while (positionIter.hasNext()) {
key = positionIter.next();
xy = position.get(key);
logotext = value.get(key);
System.out.println("key:"+key+",value:"+logotext);
if (xy != null && xy.length == 2)
printText(srcImg, buffImg, logotext,
Integer.valueOf(xy[0]), Integer.valueOf(xy[1]));
}
// 10、生成图片
os = new FileOutputStream(targerPath);
ImageIO.write(buffImg, "JPG", os);
System.out.println("图片完成添加水印文字");
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (null != is)
is.close();
} catch (Exception e) {
e.printStackTrace();
}
try {
if (null != os)
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* 在图片上打印文字
*
* @param srcImg
* @param buffImg
* @param logoText
* @return
*/
private static void printText(Image srcImg, BufferedImage buffImg,
String logoText, Integer positionX, Integer PositionY) {
Graphics2D g = buffImg.createGraphics();
// 3、设置对线段的锯齿状边缘处理
g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g.drawImage(
srcImg.getScaledInstance(srcImg.getWidth(null),
srcImg.getHeight(null), Image.SCALE_SMOOTH), 0, 0, null);
// 5、设置水印文字颜色
g.setColor(color);
// 6、设置水印文字Font
g.setFont(font);
// 7、设置水印文字透明度
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,
alpha));
// 8、第一参数->设置的内容，后面两个参数->文字在图片上的坐标位置(x,y)
g.drawString(logoText, positionX, PositionY);
// 9、释放资源
g.dispose();
}
}
热心网友
时间：2023-08-28 11:17
DOC文件的话，右键点击文件--打开方式---选择程序---写字板。在写字板打开的文件中复制。 写字板不行的话，再试下文本文档、WPS
