一、实现方法如下

1、IDCardGenerate.java

public interface IDCardGenerate {//public static final String outPath = "D:/gen/idcard.png";//public static final String outDir = "D:/gen/";//接口的定义,接口里只包含常量和抽象方法.public static final String outPath = ".\\idcard.png";//这个是临时文件名public static final String outDir = ".\\";public static final String outSuf = ".jpg";public static final int canvasWidth = 480;public static final int canvasHeight = 320;public static final int imgWidth = 270;public static final int imgHeigth = 428;public static final int xStart = 60;public static final int yStart = 85;public static final int yStep = 32;public static final int xStep = 90;public static final int charSpace = 10;public static final int paramXStart = 110;public static final int nationSpace = 140;public static final int monthSpace = 120;public static final int daySpace = 60;public static final int idNoSpace = 80;public static final int charLineSpace = 25;public void paint();
}

2、IDCardGeneratorFront .java

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;import javax.imageio.ImageIO;public class IDCardGeneratorFront implements IDCardGenerate {private IDCardInfo idCard = null;@SuppressWarnings("unused")private IDCardGeneratorFront(){}public IDCardGeneratorFront(IDCardInfo idCard) throws Exception{if(null == idCard){throw new Exception("IDCardinfo object can not be null!");}this.idCard = idCard;}@Overridepublic void paint(){BufferedImage bi = new BufferedImage(canvasWidth, canvasHeight, BufferedImage.TYPE_INT_ARGB);//构造一个类型为预定义图像类型之一的 BufferedImageGraphics2D g2d = getTemplateFront(bi);Font font = new Font("华文细黑",Font.BOLD,16);//可不定义g2d.setPaint(Color.black);//给写入的个人信息文本设置为黑色//g2d.setFont(font);int ypStep = 0;int xpStep = 0;//姓名参数g2d.drawString(idCard.getName(), paramXStart, yStart);//性别参数ypStep = yStart + yStep;g2d.drawString(idCard.getSex(), paramXStart, ypStep);//民族参数xpStep = xStart + nationSpace;g2d.drawString(idCard.getNation(), xpStep, ypStep);//出生参数//幄1�7ypStep += yStep;g2d.drawString(idCard.getBornYear(), paramXStart, ypStep);//朄1�7xpStep = xStart + monthSpace;g2d.drawString(idCard.getBornMonth(), xpStep, ypStep);//旄1�7xpStep += daySpace;g2d.drawString(idCard.getBornDay(), xpStep, ypStep);//住址参数ypStep += yStep;g2d.drawString(idCard.getAddr1(), paramXStart, ypStep);//地址换行处理g2d.drawString(idCard.getAddr2(), paramXStart, ypStep + charLineSpace);//身份证号ypStep += idNoSpace;xpStep = xpStep - daySpace;//font = new Font(Font.MONOSPACED,Font.BOLD,20);//g2d.setFont(font);g2d.drawString(idCard.getIdNo(), xpStep, ypStep + 10);g2d.dispose();try {ImageIO.write(bi, "PNG", new File(outPath));// 使用支持给定格式的任意 ImageWriter 将一个图像写入 FileFile imgFile = new File(outPath);//通过将给定路径名字符串转换为抽象路径名来创建一个新 File 实例。String imgName = String.valueOf(System.currentTimeMillis());imgFile.renameTo(new File(outDir + imgName + outSuf));//重新命名此抽象路径名表示的文件。} catch (IOException e) {e.printStackTrace();} finally{} } private Graphics2D getTemplateFront(BufferedImage bi) {//该方法是用来获取模板样式Graphics2D g2d = bi.createGraphics();int ypStep = 0;int xpStep = 0;Font font = new Font("黑体",Font.BOLD,14);//设置背景艄1�7g2d.setBackground(Color.white);//白色背景g2d.clearRect(0, 0, canvasWidth, canvasWidth);//g2d.fillRect(0, 0, canvasWidth, canvasWidth);//绘制圆角矩形g2d.setPaint(Color.black);//矩形边框颜色RoundRectangle2D rr = new RoundRectangle2D.Double(30,30,428,270,20,20);//设置圆角g2d.draw(rr);//要呈现的轮廓//姓名g2d.setPaint(Color.BLUE);//这是为模板字体设置为蓝色//g2d.setFont(font);//调试用的//姓名g2d.drawString("姓名", xStart, yStart);//首字符的基线位于用户空间的1�7 (x, y) 位置处1�7ypStep = yStart + yStep;//性 别g2d.drawString("性 别", xStart, ypStep);//pStep += yStep;//民 族xpStep =xStart + xStep;g2d.drawString("民 族",xpStep , ypStep);ypStep += yStep;//出 生g2d.drawString("出 生", xStart, ypStep);//ypStep += yStep;xpStep = xStart + xStep;//年g2d.drawString("年", xpStep, ypStep);//月xpStep += xStart;g2d.drawString("月", xpStep, ypStep);//日xpStep += xStart;g2d.drawString("日", xpStep, ypStep);//住 址ypStep += yStep;g2d.drawString("住 址", xStart, ypStep);ypStep += idNoSpace;//号码font = new Font("黑体",Font.PLAIN,16);//这里设置颜色有什么用？g2d.setFont(font);g2d.drawString("公民身份号码", xStart, ypStep + 10);//设置头像try {//Image img = ImageIO.read(new File("D:/gen/qie2.png"));Image img = ImageIO.read(new File(".\\qie2.png"));//返回一个 BufferedImage，作为使用 ImageReader（它是从当前已注册 ImageReader 中自动选择的）解码所提供 File 的结果。g2d.drawImage(img, 300,70,null);//  呈现一个图像，在绘制前进行从图像空间到用户空间的转换。} catch (IOException e) {   }return g2d;
//      g2d.dispose();
//
//      try {
//          ImageIO.write(bi, "PNG", new File(outPath));
//      } catch (IOException e) {
//          e.printStackTrace();
//      } finally{
//
//      }  }
}

3\IDCardInfo .java

public class IDCardInfo {private String name = "";private String sex = "";private String nation = "";private String bornYear = "";private String bornMonth = "";private String bornDay = "";private String addr = "";private String idNo = "";private String expDate = "";private String issuingAuthority = "";private String addr1 = "";private String addr2 = "";public String getAddr1() {addr1 = addr.length() > 11 ? addr.substring(0,11) : "";return addr1;}public String getAddr2() {addr2 = addr.length() > 11 ? addr.substring(11) : "";return addr2;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public String getNation() {return nation;}public void setNation(String nation) {this.nation = nation;}public String getBornYear() {return bornYear;}public void setBornYear(String bornYear) {this.bornYear = bornYear;}public String getBornMonth() {return bornMonth;}public void setBornMonth(String bornMonth) {this.bornMonth = bornMonth;}public String getBornDay() {return bornDay;}public void setBornDay(String bornDay) {this.bornDay = bornDay;}public String getAddr() {return addr;}public void setAddr(String addr) {this.addr = addr;}public String getIdNo() {return idNo;}public void setIdNo(String idNo) {this.idNo = idNo;}public String getExpDate() {return expDate;}public void setExpDate(String expDate) {this.expDate = expDate;}public String getIssuingAuthority() {return issuingAuthority;}public void setIssuingAuthority(String issuingAuthority) {this.issuingAuthority = issuingAuthority;}
}

4\TestGenCard .java

public class TestGenCard {public static void main(String[] args) {IDCardInfo idCard = new IDCardInfo();idCard.setName("赵一");idCard.setSex("男");idCard.setNation("汉");idCard.setBornYear("1999");idCard.setBornMonth("8");idCard.setBornDay("8");idCard.setAddr("陕西省渭南市大荔县黄河镇黄家沟二组");idCard.setIdNo("622426199908080018");try {IDCardGeneratorFront idCardFront = new IDCardGeneratorFront(idCard);idCardFront.paint();System.out.println("complete!!!");} catch (Exception e) {e.printStackTrace();}}
}