Java生成读取条形码和二维码的简单示例

<dependencies>

         <!-- https: //mvnrepository测试数据/artifact/com.google.zxing/javase -->

         <dependency>

             <groupid>com.google.zxing</groupid>

             <artifactid>javase</artifactid>

             <version> 3.2 . 1 </version>

         </dependency>

         <dependency>

             <groupid>com.google.zxing</groupid>

             <artifactid>core</artifactid>

             <version> 3.0 . 0 </version>

         </dependency>

</dependencies>

public static void main(string[] args) {

     generatecode( new file( "1dcode.png" ), "1390351289" , 500 , 250 );

}

/**

  * @param file    生成的文件名称

  * @param code    一维码存储的数据信息

  * @param width   生成图片的宽度

  * @param height  生成图片的高度

  * @return void

  * */

public static void generatecode(file file, string code, int width, int height){

     // 定义位图矩阵bitmatrix

     bitmatrix matrix = null ;

     try {

         // 使用code_128格式进行编码生成100*25的条形码

         multiformatwriter writer = new multiformatwriter();

         matrix = writer.encode(code, barcodeformat.code_128, width, height, null );

     } catch (writerexception e) {

         e.printstacktrace();

     }

     // 将位图矩阵bitmatrix保存为图片

     try {

         fileoutputstream outputstream = new fileoutputstream(file);

         imageio.write(matrixtoimagewriter.tobufferedimage(matrix), "png" , outputstream);

         outputstream.flush();

         outputstream.close();

     } catch (exception e) {

         e.printstacktrace();

     }

}

public static void main(string[] args) {

     readcode( new file( "1dcode.png" ));

}

/**

  * @param readimage    读取一维码图片名

  * @return void

  * */

public static void readcode(file readimage) {

     try {

         bufferedimage image = imageio.read(readimage);

         if (image == null ) {

             return ;

         }

         luminancesource source = new bufferedimageluminancesource(image);

         binarybitmap bitmap = new binarybitmap( new hybridbinarizer(source));

         map<decodehinttype, object> hints = new hashmap<decodehinttype, object>();

         hints.put(decodehinttype.character_set, "gbk" );

         hints.put(decodehinttype.pure_barcode, boolean . true );

         hints.put(decodehinttype.try_harder, boolean . true );

         result result = new multiformatreader().decode(bitmap, hints);

         system.out.println(result.gettext());

     } catch (exception e) {

         e.printstacktrace();

     }

}

/** 定义二维码的宽度 */

private final static int width = 300 ;

/** 定义二维码的高度 */

private final static int height = 300 ;

/** 定义二维码的格式 */

private final static string format = "png" ;

/**

  * @param file

  * @param content

  * @return void

  * */

public static void generateqrcode(file file, string content) {

     // 定义二维码参数

     map<encodehinttype, object> hints = new hashmap<encodehinttype, object>();

     // 设置编码

     hints.put(encodehinttype.character_set, "utf-8" );

     // 设置容错等级

     hints.put(encodehinttype.error_correction, errorcorrectionlevel.m);

     // 设置边距，默认为5

     hints.put(encodehinttype.margin, 2 );

     try {

         bitmatrix bitmatrix = new multiformatwriter()

                 .encode(content, barcodeformat.qr_code, width, height, hints);

         path path = file.topath();

         // 保存到项目跟目录中

         matrixtoimagewriter.writetopath(bitmatrix, format, path);

     } catch (exception e) {

         e.printstacktrace();

     }

}

public static void main(string[] args) {

     generateqrcode( new file( "smt.png" ), "淑玫唐家居网" );

}

/**

  * @param file    读取二维码的文件名

  * @return void

  * */

public static void readqrcode(file file) {

     multiformatreader reader = new multiformatreader();

     try {

         bufferedimage image = imageio.read(file);

         binarybitmap binarybitmap = new binarybitmap( new hybridbinarizer( new bufferedimageluminancesource(image)));

         map<decodehinttype, object> hints = new hashmap<>();

         hints.put(decodehinttype.character_set, "utf-8" );

         result result = reader.decode(binarybitmap, hints);

         system.out.println( "解析结果: " + new string(result.tostring().getbytes( "gbk" ), "gbk" ));

         system.out.println( "二维码格式: " + result.getbarcodeformat());

         system.out.println( "二维码文本内容: " + new string(result.gettext().getbytes( "gbk" ), "gbk" ));

     } catch (exception e) {

         e.printstacktrace();

     }

}

public static void main(string[] args) {

     readqrcode( new file( "smt.png" ));

}