Using zxing to generate two-dimensional code in batches

Use zxing batch in a well-done position on the background map, the specified text content (link address, text, etc.) generated two-dimensional code and placed in the position,

Finally, add the card number.

Steps:

1). Make a good background map, such as:

2). Generate two-dimensional code bufferedimage objects. The code is as follows:

/** *  * @Title: Tobufferedimage * @Description: Convert text into QR code picture Object * @param text * QR            code content * @param width * qr            code Height * @ Param Height *            two-bit width * @param * @param Exception *            settings file * @return bufferedimage return type * @throws */public static Buff Eredimage tobufferedimage (String text, int width,int height) throws Exception {int BLACK = 0xff000000;int White = 0xFFFFFF FF; Hashtable<encodehinttype, object> hints = new Hashtable<encodehinttype, object> (); Hints.put ( Encodehinttype.character_set, "Utf-8"); The content uses the character set encoding Hints.put (Encodehinttype.margin, 1); Bitmatrix matrix = new Multiformatwriter (). Encode (Text,barcodeformat.qr_code, width, height, hints); BufferedImage image = new BufferedImage (width, height,bufferedimage.type_int_rgb); for (INT x = 0; x < width; + +) {for (int y = 0; y < height; y++) {Image.setrgb (x, Y, Matrix.get (x, y)? black:white);}} return image;

3). Create a QR code at the specified position on the background map, as follows:

/** * * @Title: Markimagebycode * @Description: Add two-D code to the position assigned to the picture * @param img * QR Code Image Object * @param srcimgpath *            Background map * @param targerpath * Target map * @param positionwidth * Position Horizontal axis * @param positionheight * Position ordinate * @return void return type * @throws */public static void Markimagebycode (Image img, String srcimgpath,string targe RPath, int positionwidth, int positionheight) {OutputStream os = null;try {Image srcimg = imageio.read (New File (Srcimgpath )); BufferedImage buffimg = new BufferedImage (Srcimg.getwidth (null), srcimg.getheight (null), BUFFEREDIMAGE.TYPE_INT_RGB) ;//1, get the Brush object graphics2d g = Buffimg.creategraphics ();//2, set the jagged edge of the segment G.setrenderinghint (Renderinghints.key_ Interpolation,renderinghints.value_interpolation_bilinear); G.drawimage (Srcimg.getscaledinstance ( Srcimg.getwidth (NULL), srcimg.getheight (null), Image.scale_smooth), 0, 0,null); G.setcomposite ( Alphacomposite.getinstance (Alphacomposite.src_atop,alpha));//3, QR code position g.drawimage (IMG, Positionwidth, positionheight, null); G.setcomposite (Alphacomposite.getinstance (Alphacomposite.src_over));//4, releasing Resources g.dispose ( );//5, Generate images (PNG is recommended, JPG will be distorted) OS = new FileOutputStream (Targerpath); Imageio.write (buffimg, "PNG", OS); System.out.println ("QR Code image Generation Success");} catch (Exception e) {e.printstacktrace ();} finally {try {if (null! = OS) os.close ()} catch (Exception e) {E.printstacktrac E ();}}}

4). Add the Standing card number to the card

/** * * @Title: Presstext * @Description: Add text to a picture @param presstext * Text content * @param srcimagefile *            Original picture * @param destimagefile * Target picture * @param x * Horizontal Axis * @param y * ordinate * @param alpha * Transparency * @return void return type * @throws */public final static void Presstext (String presstext, String srcimagefile,st Ring destimagefile, int x, int y, float Alpha) {try {file img = new File (srcimagefile); Image src = Imageio.read (img); int W Idth = Src.getwidth (null); int height = src.getheight (null); BufferedImage image = new BufferedImage (width, height,bufferedimage.type_int_rgb); Graphics2D g = image.creategraphics ();//Open Text anti-aliasing to text Burr G.setrenderinghint (renderinghints.key_text_antialiasing, RENDERINGHINTS.VALUE_TEXT_ANTIALIAS_ON); g.drawimage (src, 0, 0, width, height, null);//Set color G.setcolor (new color (89, 87 , 87));//Set Fontg.setfont (New Font ("_GBK", Font.Bold)); G.setcomposite (Alphacomposite.getinstance ( Alphacomposite.src_atop,alpha));//FirstThe contents of one parameter, and the coordinate position (x, y) of the text on the picture, followed by two parameters. g.DrawString (Presstext, x, y); G.dispose (); Imageio.write (bufferedimage Image, "PNG", new File (Destimagefile));//output to file stream} catch (Exception e) {e.printstacktrace ()}}

Example:

Code:

Test code

public class Codetest {public static void main (string[] args) throws Exception {String text = "http://www.xxx.com/";//Two D Code content//Generate two-dimensional code//generate picture two-dimensional code storage directory String TargetPath = "f:/qrcode/targetimg/" + utils.tostr ();//Create Directory Utils.makedirs (TargetPath); int begin = 100;//code start digit int end = 101;//code end number for (int i = begin; I <= end; i++) {//Generate 16 digits with date such as 20161214000001Stri ng code = UTILS.TOSTR () + utils.formatenumber (i);//Get QR code object BufferedImage image = Utils.tobufferedimage (text+ "? paycode=" + code,240,240);//Generate a Utils.markimagebycode (image, "F:/qrcode/srcimg/src.png", TargetPath + "/" + code + ") with a background image and a two-dimensional code. PNG ", 340, 160);//The chart of the card plus the code number utils.presstext (code, TargetPath +"/"+ code +". png ", targetpath+"/"+ code +". png ", 390 , 417, 0.5f);} Generate two-dimensional code}}

Effect:

The batch-generated images are as follows

Batch chart:

Utils Code:

Package Cn.utils.code;import Java.awt.alphacomposite;import Java.awt.color;import java.awt.font;import Java.awt.graphics2d;import Java.awt.image;import Java.awt.renderinghints;import java.awt.image.BufferedImage; Import Java.io.file;import java.io.fileoutputstream;import java.io.outputstream;import Java.text.DecimalFormat; Import Java.text.simpledateformat;import java.util.date;import java.util.hashtable;import Javax.imageio.ImageIO; Import Com.google.zxing.barcodeformat;import Com.google.zxing.encodehinttype;import Com.google.zxing.multiformatwriter;import com.google.zxing.common.bitmatrix;/** Tool class.  */public abstract class Utils {/** date format: yyyy-mm-dd HH:mm:ss */public static String df_datetime = "YyyyMMdd";p rivate static  float Alpha = 1f;/** * * @Title: Tobufferedimage * @Description: Convert text to QR code picture Object * @param text * QR Code content * @param Width * Two-dimensional code height * @param Height * Two-bit width * @param * @param Exception * settings file * @return Buffer Edimage return type * @throws */publiC Static BufferedImage tobufferedimage (String text, int width,int height) throws Exception {int BLACK = 0xff000000;int WHI TE = 0xFFFFFFFF; Hashtable<encodehinttype, object> hints = new Hashtable<encodehinttype, object> (); Hints.put ( Encodehinttype.character_set, "Utf-8"); The content uses the character set encoding Hints.put (Encodehinttype.margin, 1); Bitmatrix matrix = new Multiformatwriter (). Encode (Text,barcodeformat.qr_code, width, height, hints); BufferedImage image = new BufferedImage (width, height,bufferedimage.type_int_rgb); for (INT x = 0; x < width; + +) {for (int y = 0; y < height; y++) {Image.setrgb (x, Y, Matrix.get (x, y)? black:white);}} return image;            /** * * @Title: Markimagebycode * @Description: Add two-D code to the position assigned to the picture * @param img * QR Code Image Object * @param srcimgpath *            Background map * @param targerpath * Target map * @param positionwidth * Position Horizontal axis * @param positionheight * Position ordinate * @return void return type * @throws */public static void Markimagebycode (Image img, String SRcimgpath,string targerpath, int positionwidth, int positionheight) {OutputStream os = null;try {Image srcimg = ImageIO.rea D (New File (Srcimgpath)); BufferedImage buffimg = new BufferedImage (Srcimg.getwidth (null), srcimg.getheight (null), BUFFEREDIMAGE.TYPE_INT_RGB) ;//1, get the Brush object graphics2d g = Buffimg.creategraphics ();//2, set the jagged edge of the segment G.setrenderinghint (Renderinghints.key_ Interpolation,renderinghints.value_interpolation_bilinear); G.drawimage (Srcimg.getscaledinstance ( Srcimg.getwidth (NULL), srcimg.getheight (null), Image.scale_smooth), 0, 0,null); G.setcomposite ( Alphacomposite.getinstance (Alphacomposite.src_atop,alpha));//3, QR code position g.drawimage (IMG, Positionwidth, Positionheight, NULL); G.setcomposite (Alphacomposite.getinstance (Alphacomposite.src_over));//4, releasing Resources g.dispose (); /5, Generate picture (proposed PNG, JPG will be distorted) OS = new FileOutputStream (Targerpath); Imageio.write (buffimg, "PNG", OS); System.out.println ("QR Code image Generation Success");} catch (Exception e) {e.printstacktrace ();} finally {try {if (null! = OS) os.close ();} catch (ExceptIon e) {e.printstacktrace ();}}}            /** * * @Title: Presstext * @Description: Add text to a picture @param presstext * Text content * @param srcimagefile *            Original picture * @param destimagefile * Target picture * @param x * Horizontal Axis * @param y * ordinate * @param alpha * Transparency * @return void return type * @throws */public final static void Presstext (String presstext, String srcimagefile,st Ring destimagefile, int x, int y, float Alpha) {try {file img = new File (srcimagefile); Image src = Imageio.read (img); int W Idth = Src.getwidth (null); int height = src.getheight (null); BufferedImage image = new BufferedImage (width, height,bufferedimage.type_int_rgb); Graphics2D g = image.creategraphics ();//Open Text anti-aliasing to text Burr G.setrenderinghint (renderinghints.key_text_antialiasing, RENDERINGHINTS.VALUE_TEXT_ANTIALIAS_ON); g.drawimage (src, 0, 0, width, height, null);//Set color G.setcolor (new color (89, 87 , 87));//Set Fontg.setfont (New Font ("_GBK", Font.Bold)); G.setcomposite (Alphacomposite.getinstance (AlphaComposite.src_atop,alpha));//The contents of the setting, the first parameter, and the coordinate position (x, y) of the text on the picture, followed by two parameters. g.DrawString (Presstext, x, y); G.dispose ( ); Imageio.write ((bufferedimage) image, "PNG", new File (Destimagefile));//output to file stream} catch (Exception e) { E.printstacktrace ();}} Date-to-string/** formats the date as a string, the default format is Yyyy-mm-dd HH:mm:ss, and the default date is the current date. */public static String Tostr () {return tostr (df_datetime);} /** formats the date as a string, the format is specified by the parameter format, the default date is the current date, and the format value can use this class of constants or customizations. */public static string Tostr (string format) {return TOSTR (format, New Date ());} /** formats the date as a string, the default format is Yyyy-mm-dd HH:mm:ss, and the date is specified by the parameter date. */public static String tostr (date date) {return tostr (df_datetime, date);} /** formats the date as a string, the format is specified by the parameter format, the date is specified by the parameter date, and the format value can use this class of constants or customizations. */public static string Tostr (string format, date date) {return new SimpleDateFormat (format). format (date); public static String formatenumber (int num) {DecimalFormat df = new DecimalFormat ("000000"); String str2 = Df.format (num); return str2;} public static Boolean makedirs (String filePath) {File folder = NEW File (FilePath); return (Folder.exists () && folder.isdirectory ())? True:folder.mkdirs ();}}

the technology used:

1. Use the zxing to generate the QR Code tool.

1):

http://repo1.maven.org/maven2/com/google/zxing/javase/3.1.0/

2). MAVEN Configuration

<dependency><groupId>com.google.zxing</groupId><artifactId>core</artifactId>< Version>2.2</version></dependency>

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Using zxing to generate two-dimensional code in batches