Java实现打印功能

1、Java实现打印功能用java实现打印，java.awt中提供了一些打印的API,要实现打印，首先要获得打印对象，然后继承Printable实现接口方法print,以便打印机进行打印，最后用用Graphics2D直接输出直接输出。下面代码实现了简单的打印功能：importjava.awt.BasicStroke;importjava.awt.Color;importjava.awt.Component;importjava.awt.Font;importjava.awt.Graphics;importjava.awt.Graphics2D;importjava.awt.lmage;import

2、java.awt.Toolkit;importjava.awt.RenderingHints;importjava.awt.font.FontRenderContext;importjava.awt.font.LineBreakMeasurer;importjava.awt.font.TextAttribute;importjava.awt.font.TextLayout;importjava.awt.geom.Point2D;importjava.awt.image.Bufferedlmage;importjava.awt.print.Book;importjava.awt.print.Pa

3、geFormat;importjava.awt.print.Paper;importjava.awt.print.Printable;importjava.awt.print.PrinterException;importjava.awt.print.PrinterJob;importjava.text.AttributedString;importjavax.swing.JApplet;icblpuE$PrintTestimplementsPrintable!LIparamGraphic指明打印的图形环境paramPageFormat指明打印贞格式页面大小以点为计量单位，11英才的1/72,

4、1英寸为25.4毫米。A4纸大致为595X842点parampagelndex指明页号Epublicintprint(Graphicsgra,PageFormatpf,intpageIndex)throwsPrinterExceptionISystem.out.println("pageIndex="+pageIndex);|Componentc=null;I/printstringIStringstr="中华民族是勤劳、勇敢和富有智慧的伟大民族。"；I/转换成Graphics2DIGraphics2Dg2=(Graphics2D)gra;I/设置打印颜

5、色为黑色Ig2.setColor(Color.black);/打印起点坐标Idoublex=pf.getImageableX();Idoubley=pf.getImageableY();I5switch(pageIndex)Icase0:I/设置打印字体字体名称、样式和点大小字体名称可以是物理或者逻辑名称/Java平台所定义的五种字体系歹U：Serif、SansSerif、MonospacedDialog和DialogInputFontfont=newFont("新宋体",Font.PLAIN,9);Ig2.setFont(font);/设置字体/BasicStrokebs

6、_3=newBasicStroke(0.5f);Jfloatdash1=2.0f;/设置打印线的届性。/1.线宽2、3、不知道，4、空白的宽度，5、虚线的宽度，6、偏移量Ig2.setStroke(newBasicStroke(0.5f,BasicStroke.CAP_BUTT,BasicStroke.JOIN_MITER,2.0f,dash1,0.0f);/g2.setStroke(bs_3);/设置线宽Ifloatheigth=font.getSize2D();/字体高度ISystem.out.println("x="+x);/-1-用Graphics2D直接输出/首字

7、符的基线(右下部)位丁用户空间中的(x,y)位置处/g2.drawLine(10,10,200,300);IImagesrc=Toolkit.getDefaultToolkit().getImage("D:EclipseWorkSpace3.1Kfc-wuxiWebRootimageKFC.jpg");g2.drawImage(src,(int)x,(int)y,c);intimg_Height=src.getHeight(c);intimg_width=src.getWidth(c);/System.out.println("img_Height="+

8、img_Height+"img_width="+img_width);I_Ig2.drawString(str,(float)x,(float)y+1*heigth+img_Height);g2.drawLine(int)x,(int)(y+1*heigth+img_Height+10),(int)x+200,(int)(y+1*heigth+img_Height+10);Ig2.drawImage(src,(int)x,(int)(y+1*heigth+img_Height+11),c);IreturnPAGE_EXISTS;default:returnNO_SUCH_P

9、AGE;voidmain(Stringargs)通俗理解就是书、文档IIIIIpublicstaticI/Bookbook=newBook();/设置成竖打PageFormatpf=newPageFormat();pf.setOrientation(PageFormat.PORTRAIT);/通过Paper设置页面的空白边距和可打印区域。必须与实际打印纸张大小相符。IPaperp=newPaper();Ip.setSize(590,840);/纸张大小p.setImageableArea(10,10,590,840);/A4(595X842)设置打印区域，其实0,0应该是72,72,因为A4纸

10、的默认X,Y边距是72Ipf.setPaper(p);/把PageFormat和Printable添加到书中，组成一个页面Ibook.append(newPrintTest(),pf);/获取打印效劳对象PrinterJobjob=PrinterJob.getPrinterJob();/设置打印类job.setPageable(book);I5try(/可以用printDialog显示打印对话框，在用户确认后打印；也可以直接打印|/booleana=job.printDialog();I/if(a)/(Ijob.print();/卜"5catch(PrinterExceptione)

11、(e.printStackTrace();这个例子实现了打印字符申，线包括虚线和打印图片。而且通过Paper的setImageableArea可以设置打印的区域和边距，让开发者随意的设置打印的位置。下面的打印代码没有设置打印区域，默认为打印纸张的区域和边距，比方我们一股用的A4纸，打印的起点X和Y坐标那么是72,72。无区域设置的代码：importjava.awt.BasicStroke;importjava.awt.Color;importjava.awt.Component;importjava.awt.Font;importjava.awt.Graphics;importjava.awt

12、.Graphics2D;importjava.awt.Image;importjava.awt.Toolkit;importjava.awt.RenderingHints;importjava.awt.font.FontRenderContext;importjava.awt.font.LineBreakMeasurer;importjava.awt.font.TextAttribute;importjava.awt.font.TextLayout;importjava.awt.geom.Point2D;importjava.awt.image.BufferedImage;importjava

13、.awt.print.Book;importjava.awt.print.PageFormat;importjava.awt.print.Paper;importjava.awt.print.Printable;importjava.awt.print.PrinterException;importjava.awt.print.PrinterJob;importjava.text.AttributedString;importjavax.swing.JApplet;publicclassPrintTest1implementsPrintableE/*I*paramGraphic指明打印的图形环

14、境paramPageFormat指明打印贞格式页面大小以点为计量单位，1点为1英才的1/72,1英寸为25.4毫米。A4纸大致为595X842点parampageIndex指明页号卜*/Jpublicintprint(Graphicsgra,PageFormatpf,intpageIndex)throwsPrinterExceptionISystem.out.println("pageIndex="+pageIndex);IComponentc=null;I/printstringStringstr="中华民族是勤劳、勇敢和富有智慧的伟大民族。"I/转换

15、成Graphics2DGraphics2Dg2=(Graphics2D)gra;/设置打印颜色为黑色g2.setColor(Color.black);/*Paperpaper=pf.getPaper();/得到页面格式的纸张paper.setSize(500,500);/纸张大小Ipaper.setImageableArea(0,0,500,500);/设置打印区域的ISystem.out.println(paper.getWidth();ISystem.out.println(paper.getHeight();卜pf.setPaper(paper);/将该纸张作为格式*/打印起点坐标Ido

16、ublex=pf.getImageableX();Idoubley=pf.getImageableY();switch(pageIndex)Icase0:/设置打印字体字体名称、样式和点大小字体名称可以是物理或者逻辑名称/Java平台所定义的五种字体系歹U：Serif、Dialoginput=newFont("新宋体",Font.PLAIN,9);II0.5f);$IBasicStroke.CAP_BUTT,g2.setFont(font);/设置字体/BasicStrokebs_3=newfloatdashlg2.setStroke(newBasicStroke(=(4.

17、0f；BasicStroke(0.5f,BasicStroke.JOIN_MITER,4.0f,daSansSerif、MonospacedDialog和Fontfontsh1,0.0f);floatheigth=font.getSize2D();/字体高度ISystem.out.println("x="+x);I/使用抗锯齿模式完成文本呈现$/*g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,IRenderingHints.VALUE_TEXT_ANTIALIAS_ON);*/-1-用Graphics2D营

18、以输出/首字符的基线(右下部)位丁用户空间中的(x,y)位置处II/g2.drawLine(10,10,200,10);IImagesrc=Toolkit.getDefaultToolkit().getImage("d:/logo.gif");Ig2.drawImage(src,(int)x,(int)y,c);intimg_Height=src.getHeight(c);Iintimg_width=src.getWidth(c);/System.out.println("img_Height="+img_Height+"img_width=&

19、quot;+img_width);Ig2.drawString(str,(float)x,(float)y+1*heigth+img_Height);g2.drawLine(int)x,(int)(y+1*heigth+img_Height+10),(int)x+200,(int)(y+1*heigth+img_Height+10);g2.drawImage(src,(int)x,(int)(y+1*heigth+img_Height+11),c);/-2-直接构造TextLayout打印-/*FontRenderContextfrc=g2.getFontRenderContext();ITextLayoutlayout=newTextLayout(str,layout.draw(g2,(float)x,(float)y+2*heigth/-3-用LineBreakMeasurer进行打印tring(str);/*AttributedStringtext=newAttributedStext.addAttribute(TextAttribute.FONT,font);LineBreakMeasurerlineBreaker