最近做一个点菜宝项目，需要打印java后台嗲用打印机并且打印票据，思路是这样 先填充数据，然后生成图片，调用打印机直接打印图片！废话不多说直接上代码！
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.util.Date;
import java.util.List;
import com.sarnath.orderdishes.vo.OrderDishes;
import com.sarnath.orderdishes.vo.OrderForm;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
public class CreateImage{
public static BufferedImage image;
public static String createImage(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();
}
return fileLocation;
}
public static String graphicsGeneration(List<OrderDishes> orderDishesList,OrderForm orderForm) {
createDir("C://orderForm//image");
int imageWidth = 400;//图片的宽度
int imageHeight = 400+orderDishesList.size()*200;//图片的高度
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(Color.BLACK);
Font fontTitle=new Font("楷体",Font.BOLD,35);
graphics.setFont(fontTitle);
graphics.drawString("点菜宝", 40, 25);
Font font=new Font("宋体",Font.PLAIN,25);
graphics.setFont(font);
graphics.drawString("订单编号: " + orderForm.getFormCode(), 50, 75);
graphics.drawString("对应楼层: " + orderForm.getDisk().getFloor().getFloorNum(), 50, 100);
graphics.drawString("对应餐桌: " + orderForm.getDisk().getDiskCode(), 50, 125);
graphics.drawString("订单时间: " + orderForm.getFormDate(), 50, 150);
Integer y=175;
for(OrderDishes od:orderDishesList){
y=y+25;
graphics.drawString("菜名 : " +od.getDishes().getDishesName() , 50, y);
y=y+25;
graphics.drawString("价格 : " + od.getDishes().getPrice(), 50, y);
y=y+25;
graphics.drawString("份数: " + od.getNum(), 50, y);
y=y+25;
graphics.drawString("备注: " + od.getMemo(), 50, y);
y=y+25;
}
//ImageIcon imageIcon = new ImageIcon(imgurl);
//graphics.drawImage(imageIcon.getImage(), 230, 0, null);
//改成这样:
BufferedImage bimg = null;
try {
bimg = javax.imageio.ImageIO.read(new java.io.File("C://orderForm//image"+DateUtil.DateToStringHHSSMM(new Date())+orderForm.getFormCode()+".jpg"));
} catch (Exception e) {
}
if(bimg!=null)
graphics.drawImage(bimg, 230, 0, null);
graphics.dispose();
String imageUrl=createImage("C://orderForm//image//"+DateUtil.DateToStringHHSSMM(new Date())+orderForm.getFormCode()+".jpg");
return imageUrl;
}
public static boolean createDir(String destDirName) {
File dir = new File(destDirName);
if(dir.exists()) {
System.out.println("创建目录" + destDirName + "失败，目标目录已存在！");
return false;
}
if(!destDirName.endsWith(File.separator))
destDirName = destDirName + File.separator;
// 创建单个目录
if(dir.mkdirs()) {
System.out.println("创建目录" + destDirName + "成功！");
return true;
} else {
System.out.println("创建目录" + destDirName + "成功！");
return false;
}
}
}
生成图片 然后嗲用java自带的打印服务进行打印！
package com.sarnath.orderdishes.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.net.InetSocketAddress;
import java.net.Socket;
import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.ServiceUI;
import javax.print.SimpleDoc;
import javax.print.attribute.DocAttributeSet;
import javax.print.attribute.HashDocAttributeSet;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.MediaSizeName;
import javax.swing.JOptionPane;
public class PrintUtil {
public static void printJava() {
// JFileChooser fileChooser = new JFileChooser(); //创建打印作业
// int state = fileChooser.showOpenDialog(null);
// if(state == fileChooser.APPROVE_OPTION){
// File file = fileChooser.getSelectedFile();
File file = new File("E:/孙小娇简历.docx"); //获取选择的文件
//构建打印请求属性集
HashPrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
//设置打印格式，因为未确定类型，所以选择autosense
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
//查找所有的可用的打印服务
PrintService printService[] = PrintServiceLookup.lookupPrintServices(flavor, pras);
//定位默认的打印服务
PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
//显示打印对话框
PrintService service = ServiceUI.printDialog(null, 200, 200, printService,
defaultService, flavor, pras);
if(service != null){
try {
DocPrintJob job = service.createPrintJob(); //创建打印作业
FileInputStream fis = new FileInputStream(file); //构造待打印的文件流
DocAttributeSet das = new HashDocAttributeSet();
Doc doc = new SimpleDoc(fis, flavor, das);
job.print(doc, pras);
fis.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
public static boolean printNoDriver(String ip, int port, String str,int skip)
throws Exception{
Socket client=new java.net.Socket();
PrintWriter socketWriter;
client.connect(new InetSocketAddress(ip,port),1000); // 创建一个 socket
socketWriter = new PrintWriter(client.getOutputStream());// 创建输入输出数据流
/* 纵向放大一倍 */
socketWriter.write(0x1c);
socketWriter.write(0x21);
socketWriter.write(8);
socketWriter.write(0x1b);
socketWriter.write(0x21);
socketWriter.write(8);
socketWriter.println(str);
for(int i=0;i<skip;i++){
socketWriter.println("");// 打印完毕自动走纸
}
return true;
}
public static void printImage() {
FileInputStream textStream = null;
try {
textStream = new FileInputStream("E:\\123.htm");
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//String printStr = "打印测试内容";// 获取需要打印的目标文本
if (textStream != null) // 当打印内容不为空时
{ // 指定打印输出格式
DocFlavor flavor = DocFlavor.INPUT_STREAM.POSTSCRIPT;//SERVICE_FORMATTED.PRINTABLE
// 定位默认的打印服务
PrintService printService = PrintServiceLookup.lookupDefaultPrintService(); // 创建打印作业
DocFlavor[] d=printService.getSupportedDocFlavors();
for(DocFlavor df:d){
System.out.println(df.getMimeType());
}
if( printService.isDocFlavorSupported(flavor)){
System.out.println("支持");
};
DocPrintJob job = printService.createPrintJob(); // 设置打印属性
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet(); // 设置纸张大小,也可以新建MediaSize类来自定义大小
pras.add(MediaSizeName.ISO_A4);
DocAttributeSet das = new HashDocAttributeSet(); // 指定打印内容
Doc doc = new SimpleDoc(textStream, flavor, das); // 不显示打印对话框，直接进行打印工作
try {
job.print(doc, pras);// 进行每一页的具体打印操作
System.out.println("打印成功了");
} catch (PrintException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
// 如果打印内容为空时，提示用户打印将取消
JOptionPane.showConfirmDialog(null,"Sorry, Printer Job is Empty, Print Cancelled!","Empty", JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE);
}
}
public static void printNoWindow(String imageUrl) {
FileInputStream textStream = null;
try {
textStream = new FileInputStream(imageUrl);
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//String printStr = "打印测试内容";// 获取需要打印的目标文本
if (textStream != null) // 当打印内容不为空时
{ // 指定打印输出格式
DocFlavor flavor = DocFlavor.INPUT_STREAM.JPEG;//SERVICE_FORMATTED.PRINTABLE
//构建打印请求属性集
HashPrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
//查找所有的可用的打印服务
PrintService allPrintService[] = PrintServiceLookup.lookupPrintServices(flavor, pras);
// 定位默认的打印服务
PrintService printService = PrintServiceLookup.lookupDefaultPrintService(); // 创建打印作业
DocFlavor[] d=printService.getSupportedDocFlavors();
for(DocFlavor df:d){
System.out.println(df.getMimeType());
}
if( printService.isDocFlavorSupported(flavor)){
System.out.println("支持");
};
DocPrintJob job = printService.createPrintJob(); // 设置打印属性
pras.add(MediaSizeName.ISO_A4);
DocAttributeSet das = new HashDocAttributeSet(); // 指定打印内容
Doc doc = new SimpleDoc(textStream, flavor, das); // 不显示打印对话框，直接进行打印工作
try {
job.print(doc, pras);// 进行每一页的具体打印操作
System.out.println("打印成功了");
} catch (PrintException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
// 如果打印内容为空时，提示用户打印将取消
JOptionPane.showConfirmDialog(null,"Sorry, Printer Job is Empty, Print Cancelled!","Empty", JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE);
}
}
}