Java 打印功能带预览，纸张大小设置
效果图
package print;
import java.awt.*;
import java.awt.print.*;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.HashAttributeSet;
import javax.print.attribute.standard.PrinterName;
import javax.swing.*;
import utils.PrinterSet;
//打印预览父类
public class PrintPreview extends JFrame {
private static final long serialVersionUID = 1L;
Printable printable;
PageFormat pageFormat;
PrintPreviewCanvas printPreviewCanvas;
String printerName;
public PrintPreview() {
JButton print=new JButton("打印");
this.add(print,BorderLayout.SOUTH);
this.setLocationRelativeTo(null);//居中
//打印
print.addMouseListener(new java.awt.event.MouseAdapter() {
public void mousePressed(java.awt.event.MouseEvent ev) {
print();
}
});
}
public void setPrintable(Printable printable) {
this.printable = printable;
}
//打印
protected void print() {
PrinterJob job=PrinterJob.getPrinterJob();
//job.setPrintable(printable);
Book book = new Book();
book.append(printable, pageFormat);
job.setPageable(book);
HashAttributeSet hs = new HashAttributeSet();
hs.add(new PrinterName(printerName,null));//通过打印机名称选择打印机
PrintService[] pss = PrintServiceLookup.lookupPrintServices(null, hs);
if(pss.length==0)
{
JOptionPane.showMessageDialog(null, "请检查打印机设置\n");
return ;
}
// System.out.println("打印机:"+printerName);
try {
// if (!job.printDialog())return;//取消 此方法会将页边距变为0 原因未知
job.setPrintService(pss[0]);
job.print();
} catch (Exception e) {
e.printStackTrace();
JOptionPane.showMessageDialog(null, "打印失败\n"+e.toString());
}
}
private void setPreviewWindow(int x,int y) {
add(new JPanel(),BorderLayout.EAST);//边框
add(new JPanel(),BorderLayout.WEST);
add(new JPanel(),BorderLayout.NORTH);
setSize(x+40,y+40);
}
//纸张大小设置
protected void setPaper(int x,int y,int orientation) {
Paper paper=new Paper();
pageFormat=new PageFormat();
paper.setSize(x,y);//设置一页纸的大小
paper.setImageableArea(0,0,x,y) ;//设置打印区域的大小
pageFormat.setPaper(paper);
pageFormat.setOrientation(orientation);
if(orientation==PageFormat.LANDSCAPE) setPreviewWindow(y,x);
else setPreviewWindow(x,y);
//printPreviewCanvas.setPreferredSize(new Dimension(y,x));
add(printPreviewCanvas);//预览内容
}
protected void setPaper(int x,int y) {
setPaper(x,y,PageFormat.PORTRAIT);
}
//以下是子类中使用于绘制表格
//居中
static void drawCellOnCenter(Graphics2D g2,String text,int x, int y,int width,int height){
FontMetrics fm = g2.getFontMetrics();//用于获取字符串宽高
g2.drawString(text,x + (width - fm.stringWidth(text)) / 2,
y+ fm.getAscent() + (height - fm.getHeight()) / 2);
}
//左对齐
static void drawCellOnLeft(Graphics2D g2,String text,int x, int y,int width,int height){
FontMetrics fm = g2.getFontMetrics();//用于获取字符串宽高
g2.drawString(text,x +fm.getHeight()/3,
y+ fm.getAscent() + (height - fm.getHeight()) / 4);
}
//是否超出列宽
static boolean isLineFlow(Graphics2D g2,String text,int width){
FontMetrics fm =g2.getFontMetrics();//用于获取字符串宽高
if(fm.stringWidth(text)>width-fm.getHeight()) return true;
return false;
}
//带自动换行
static int drawCellOnCenterRows(Graphics2D g2,String text,int x, int y,int width,int height){
FontMetrics fm =g2.getFontMetrics();//用于获取字符串宽高
int stringWidth;
String s;
int rowCount=0;
for(int i=1;i<=text.length();i++){
s=text.substring(0,i);//i不包括
stringWidth=fm.stringWidth(s);
if(stringWidth>width-fm.getHeight()){//换行
s=text.substring(0,i-1);
drawCellOnCenter(g2,s,x,y,width,height);
rowCount++;
text=text.substring(i-1,text.length());//取剩下的
y+=height;
i=1;
}
else{
if(i==text.length()) {
drawCellOnCenter(g2,s,x,y,width,height);
rowCount++;
break;
}
}
}
return rowCount;
}
}
//----------------------------
//PrintPreview内部类 用于绘制打印内容，在setPaper中调用
class PrintPreviewCanvas extends Canvas {
private static final long serialVersionUID = 1L;
Printable printable;
public PrintPreviewCanvas(Printable printable) {
this.printable=printable;
this.setBackground(Color.white);
}
public void paint(Graphics g){
try {
printable.print(g, null, 0);
} catch (PrinterException e) {
e.printStackTrace();
}
}
}
//----------------------------
//PrintPreview子类 实现Printable重写print绘制打印内容
package print;
import java.awt.*;
import java.awt.print.*;
import java.text.SimpleDateFormat;
import java.util.Date;
import table.PackageDetailTable;
import utils.PrinterSet;
public class ProductPrintPreview extends PrintPreview implements Printable{
private static final long serialVersionUID = 1L;
PackageDetailTable table=new PackageDetailTable();
//packageDetailTable数据内容，visible=false时不显示预览窗口
public ProductPrintPreview(PackageDetailTable packageDetailTable, boolean visible) {
setPrintable(this);
printPreviewCanvas=new PrintPreviewCanvas(this);
if(getPaperSize().equals("A4")){
setPaper(595,842,PageFormat.LANDSCAPE);
}else{
setPaper(480,620,PageFormat.LANDSCAPE);
}
this.setLocationRelativeTo(null);//居中
this.table=packageDetailTable;
super.printerName=PrinterSet.getBigPrinter();
if(visible) setVisible(true);
else print();
}
@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
/* int up=Integer.parseInt(PrinterSet.getPrinter1Up());
int left=Integer.parseInt(PrinterSet.getPrinter1Left());*/
int startX;
int startY;
if(getPaperSize().equals("A4")){
startX=120;
startY=120;
}else{
startX=36;
startY=55;
}
int tableTop=startY+50;
int productRow=Integer.parseInt(table.getName());//要打印的产品在表中的行
Graphics2D g2 = (Graphics2D) graphics;
g2.setStroke(new BasicStroke(0.8f,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND));//设置画笔粗细的
Font font=new Font("黑体",Font.PLAIN,18);
g2.setFont(font);
g2.drawString("配 件 清 单 ",startX+240,startY+18);
font=new Font("宋体",Font.BOLD,8);
g2.setFont(font);
String order=table.getValueAt(0, 1).toString().substring(5);
g2.drawString("单号:"+order,startX+10,tableTop-10);
int tableLeft=startX;
int cw1=30;//类别
int cw2=160;//型号
int cw3=210;//规格
int cw4=25;//单位
int cw5=25;//数量
int cw6=120;//附注
int tableWidth=cw1+cw2+cw3+cw4+cw5+cw6;
int headeHeightt=28;
int lineHeight=14;
int bodyLineCount=13;
int tableHeight=headeHeightt+lineHeight*(bodyLineCount+2);
//表头
int x=tableLeft;
drawCellOnCenter(g2,"类别",x,tableTop,cw1,headeHeightt);
drawCellOnCenter(g2,"产品型号",x+=cw1,tableTop,cw2,headeHeightt);
drawCellOnCenter(g2,"产品规格",x+=cw2,tableTop,cw3,headeHeightt);
drawCellOnCenter(g2,"单位",x+=cw3,tableTop,cw4,headeHeightt);
drawCellOnCenter(g2,"数量",x+=cw4,tableTop,cw5,headeHeightt);
drawCellOnCenter(g2,"附注",x+=cw5,tableTop,cw6,headeHeightt);
int y=tableTop;
g2.drawLine(tableLeft,y,tableLeft+tableWidth,y);//横线0
g2.drawLine(tableLeft,y+=headeHeightt,tableLeft+tableWidth,y);//横线1
tableTop+=headeHeightt;
x=tableLeft;
int rows=2,row1,row2;
String text1=table.getValueAt(productRow, 3).toString();//型号
String text2=table.getValueAt(productRow, 4).toString();
int productHight=lineHeight*rows;
if(!isLineFlow(g2,text1,cw2)&&!isLineFlow(g2,text2,cw3)) {
drawCellOnCenter(g2,text1,x+=cw1,tableTop,cw2,headeHeightt);
drawCellOnCenter(g2,text2,x+=cw2,tableTop,cw3,headeHeightt);
productHight=lineHeight*rows;
}
else{
row1=drawCellOnCenterRows(g2,text1,x+=cw1,tableTop,cw2,lineHeight);
row2=drawCellOnCenterRows(g2,text2,x+=cw2,tableTop,cw3,lineHeight);
rows=row1>row2?row1:row2;
productHight=lineHeight*rows;
}
drawCellOnCenter(g2,"主机",tableLeft,tableTop,cw1,productHight);
drawCellOnCenter(g2,"台",x+=cw3,tableTop,cw4,productHight);
drawCellOnCenter(g2,"1",x+=cw4,tableTop,cw5,productHight);
g2.drawLine(tableLeft,y+=productHight,tableLeft+tableWidth,y);//横线end
//表框架
tableTop-=headeHeightt;
x=tableLeft;
tableHeight+=productHight;
g2.drawLine(x,tableTop,x,tableTop+tableHeight);//竖0
g2.drawLine(x+=cw1,tableTop,x,tableTop+tableHeight);//竖1
g2.drawLine(x+=cw2,tableTop,x,tableTop+tableHeight);//竖2
g2.drawLine(x+=cw3,tableTop,x,tableTop+tableHeight);//竖2
g2.drawLine(x+=cw4,tableTop,x,tableTop+tableHeight);//竖2
g2.drawLine(x+=cw5,tableTop,x,tableTop+tableHeight);//竖2
g2.drawLine(x+=cw6,tableTop,x,tableTop+tableHeight);//竖3
Date date=new Date();
String time;
SimpleDateFormat df = new SimpleDateFormat("yyyy/MM/dd");//设置日期格式
time=df.format(date);
g2.drawString("装配员："+time,startX+50,tableTop+tableHeight+lineHeight);
g2.drawString("装配日期："+time,startX+450,tableTop+tableHeight+lineHeight);
tableTop+=headeHeightt;
//表身
tableTop+=productHight;
for(int i=0;i<bodyLineCount;i++){
g2.drawLine(tableLeft+cw1,tableTop+lineHeight*i,tableLeft+tableWidth,tableTop+lineHeight*i);
}
tableHeight=lineHeight*bodyLineCount;
g2.drawLine(tableLeft,tableTop+tableHeight,tableLeft+tableWidth,tableTop+tableHeight);//横线end
x=tableLeft;
drawCellOnCenter(g2,"配件",x,tableTop,cw1,tableHeight);
String list[][]={{"C1","1/2NPT引压过渡焊接头","套",""},
{"C2","M20X1.5丁字接头","套","配:M10X25螺栓2个，油封1个"},
{"C3","1/2NPT锥管阴螺纹接头","套","配:M10X35螺栓2个，油封1个"},
{"B1","管装弯支架","套","配:M10X16螺栓4个，U型卡1个"},
{"B2","盘装弯支架","套","配:M10X16螺栓4个"},
{"B3","管装平支架","套","配:M10X16螺栓4个，U型卡1个"},
{"下套","","件",""},
{"垫片","","片",""},
{"盲法兰","","片",""},
{"安装法兰","","片",""},
{"紧固件","","套",""},
};
for(int i=0;i<11;i++){
x=tableLeft;
drawCellOnCenter(g2,list[i][0],x+=cw1,tableTop+lineHeight*i,cw2,lineHeight);
drawCellOnCenter(g2,list[i][1],x+=cw2,tableTop+lineHeight*i,cw3,lineHeight);
drawCellOnCenter(g2,list[i][2],x+=cw3,tableTop+lineHeight*i,cw4,lineHeight);
drawCellOnLeft(g2,list[i][3],x+=(cw4+cw5),tableTop+lineHeight*i,cw6,lineHeight);
}
//随机文件
tableTop+=tableHeight;
tableHeight=lineHeight*2;
g2.drawLine(tableLeft+cw1,tableTop+lineHeight,tableLeft+tableWidth,tableTop+lineHeight);
g2.drawLine(tableLeft,tableTop+tableHeight,tableLeft+tableWidth,tableTop+tableHeight);//横线end
String plist[][]={{"随机","使用说明书","本","1"},
{"文件","合格证/检测报告","张","1"},
};
for(int i=0;i<2;i++){
x=tableLeft;
drawCellOnCenter(g2,plist[i][0],x,tableTop+lineHeight*i,cw1,lineHeight);
drawCellOnCenter(g2,plist[i][1],x+=cw1,tableTop+lineHeight*i,cw2,lineHeight);
drawCellOnCenter(g2,plist[i][2],x+=(cw2+cw3),tableTop+lineHeight*i,cw4,lineHeight);
drawCellOnCenter(g2,plist[i][3],x+=(cw4),tableTop+lineHeight*i,cw5,lineHeight);
}
return Printable.PAGE_EXISTS;
} }