TVS LP 45条码打印机使用的打印机命令是什么？我们使用TSCLIB.dll文件来打印我们的java项目，但它不打印？用于打印TVS LP 45的实际条形码打印机命令是什么？
答案 0 :(得分：0)
几个月前，我在LP 45标签打印机上工作。我使用常规的Java代码进行打印。
package default;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.Printable;
import static java.awt.print.Printable.NO_SUCH_PAGE;
import static java.awt.print.Printable.PAGE_EXISTS;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import javax.imageio.ImageIO;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
/**
*
* @author All Open source developers
* @version 1.0.0.0
* @since 2014/12/22
*/
/*This Printsupport java class was implemented to get printout.
* This class was specially designed to print a Jtable content to a paper.
* Specially this class formated to print 7cm width paper.
* Generally for pos thermel printer.
* Free to customize this source code as you want.
* Illustration of basic invoice is in this code.
* demo by gayan liyanaarachchi
*/
public class Printsupport {
static JTable itemsTable;
public static int total_item_count=0;
public static final String DATE_FORMAT_NOW = "yyyy-MM-dd HH:mm:ss a";
public static String title[] = new String[] {"Item ID","Item Name","Price","Quantity"};
public static void setItems(Object[][] printitem){
Object data[][]=printitem;
DefaultTableModel model = new DefaultTableModel();
//assume jtable has 4 columns.
model.addColumn(title[0]);
model.addColumn(title[1]);
model.addColumn(title[2]);
model.addColumn(title[3]);
int rowcount=printitem.length;
addtomodel(model, data, rowcount);
itemsTable = new JTable(model);
}
public static void addtomodel(DefaultTableModel model,Object [][]data,int rowcount){
int count=0;
while(count < rowcount){
model.addRow(data[count]);
count++;
}
if(model.getRowCount()!=rowcount)
addtomodel(model, data, rowcount);
System.out.println("Check Passed.");
}
public Object[][] getTableData (JTable table) {
int itemcount=table.getRowCount();
System.out.println("Item Count:"+itemcount);
DefaultTableModel dtm = (DefaultTableModel) table.getModel();
int nRow = dtm.getRowCount(), nCol =dtm.getColumnCount();
Object[][] tableData = new Object[nRow][nCol];
if(itemcount==nRow) //check is there any data loss.
{
for (int i = 0 ; i < nRow ; i++){
for (int j = 0 ; j < nCol ; j++){
tableData[i][j] = dtm.getValueAt(i,j); //pass data into object array.
}}
if(tableData.length!=itemcount){ //check for data losses in object array
getTableData(table); //recursively call method back to collect data
}
System.out.println("Data check passed");
}
else{
//collecting data again because of data loss.
getTableData(table);
}
return tableData; //return object array with data.
}
public static PageFormat getPageFormat(PrinterJob pj){
PageFormat pf = pj.defaultPage();
Paper paper = pf.getPaper();
double middleHeight =total_item_count*1.0; //dynamic----->change with the row count of jtable
double headerHeight = 5.0; //fixed----->but can be mod
double footerHeight = 5.0; //fixed----->but can be mod
double width = convert_CM_To_PPI(7); //printer know only point per inch.default value is 72ppi
double height = convert_CM_To_PPI(headerHeight+middleHeight+footerHeight);
paper.setSize(width, height);
paper.setImageableArea(
convert_CM_To_PPI(0.25),
convert_CM_To_PPI(0.5),
width - convert_CM_To_PPI(0.35),
height - convert_CM_To_PPI(1)); //define boarder size after that print area width is about 180 points
pf.setOrientation(PageFormat.PORTRAIT); //select orientation portrait or landscape but for this time portrait
pf.setPaper(paper);
return pf;
}
protected static double convert_CM_To_PPI(double cm) {
return toPPI(cm * 0.393600787);
}
protected static double toPPI(double inch) {
return inch * 72d;
}
public static String now() {
//get current date and time as a String output
Calendar cal = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat(DATE_FORMAT_NOW);
return sdf.format(cal.getTime());
}
public static class MyPrintable implements Printable {
@Override
public int print(Graphics graphics, PageFormat pageFormat,
int pageIndex) throws PrinterException {
int result = NO_SUCH_PAGE;
if (pageIndex == 0) {
Graphics2D g2d = (Graphics2D) graphics;
double width = pageFormat.getImageableWidth();
double height = pageFormat.getImageableHeight();
g2d.translate((int) pageFormat.getImageableX(),(int) pageFormat.getImageableY());
Font font = new Font("Monospaced",Font.PLAIN,7);
g2d.setFont(font);
try {
/*
* Draw Image*
assume that printing reciept has logo on top
* that logo image is in .gif format .png also support
* image resolution is width 100px and height 50px
* image located in root--->image folder
*/
int x=100 ; //print start at 100 on x axies
int y=10; //print start at 10 on y axies
int imagewidth=100;
int imageheight=50;
BufferedImage read = ImageIO.read(getClass().getResource("/image/logo.gif"));
g2d.drawImage(read,x,y,imagewidth,imageheight,null); //draw image
g2d.drawLine(10, y+60, 180, y+60); //draw line
} catch (IOException e) {
e.printStackTrace();
}
try{
/*Draw Header*/
int y=80;
g2d.drawString("ABC Shopping Complex", 40,y);
g2d.drawString("CopyWrite 2009-2014", 50,y+10); //shift a line by adding 10 to y value
g2d.drawString(now(), 10, y+20); //print date
g2d.drawString("Cashier : admin", 10, y+30);
/*Draw Colums*/
g2d.drawLine(10, y+40, 180, y+40);
g2d.drawString(title[0], 10 ,y+50);
g2d.drawString(title[1], 50 ,y+50);
g2d.drawString(title[2], 100 ,y+50);
g2d.drawString(title[3], 150 ,y+50);
g2d.drawLine(10, y+60, 180, y+60);
int cH = 0;
TableModel mod = itemsTable.getModel();
for(int i = 0;i < mod.getRowCount() ; i++){
/*Assume that all parameters are in string data type for this situation
* All other premetive data types are accepted.
*/
String itemid = mod.getValueAt(i, 0).toString();
String itemname = mod.getValueAt(i, 1).toString();
String price = mod.getValueAt(i, 2).toString();
String quantity = mod.getValueAt(i, 3).toString();
cH = (y+70) + (10*i); //shifting drawing line
g2d.drawString(itemid, 0, cH);
g2d.drawString(itemname,50, cH);
g2d.drawString(price , 100, cH);
g2d.drawString(quantity , 150, cH);
}
/*Footer*/
font = new Font("Arial",Font.BOLD,16) ; //changed font size
g2d.setFont(font);
g2d.drawString("Thank You Come Again",30, cH+10);
//end of the reciept
}
catch(Exception r){
r.printStackTrace();
}
result = PAGE_EXISTS;
}
return result;
}
}
}
/*
################# THIS IS HOW TO USE THIS CLASS #######################
Printsupport ps=new Printsupport();
Object printitem [][]=ps.getTableData(jTable);
ps.setItems(printitem);
PrinterJob pj = PrinterJob.getPrinterJob();
pj.setPrintable(new MyPrintable(),ps.getPageFormat(pj));
try {
pj.print();
}
catch (PrinterException ex) {
ex.printStackTrace();
}
################## JOIN TO SHARE KNOWLADGE ###########################
*/
有时，Java API与打印机驱动程序之间会发生冲突。我可以通过删除驱动程序界面中的所有默认纸张模板来解决此问题。