/** * 打印格式 * Created by john on 17-3-23. */public class PrintFormatUtils {  // 對齊方式  public static final int ALIGN_LEFT = 0;   // 靠左  public static final int ALIGN_CENTER = 1;  // 居中  public static final int ALIGN_RIGHT = 2;  // 靠右  //字體大小  public static final int FONT_NORMAL = 0;  // 正常  public static final int FONT_MIDDLE = 1;  // 中等  public static final int FONT_BIG = 2;    // 大  //加粗模式  public static final int FONT_BOLD = 0;       // 字體加粗  public static final int FONT_BOLD_CANCEL = 1;    // 取消加粗  /**   * 打印二維碼   * @param qrCode   * @return   */  public static String getQrCodeCmd(String qrCode) {    byte[] data;    int store_len = qrCode.length() + 3;    byte store_pL = (byte) (store_len % 256);    byte store_pH = (byte) (store_len / 256);    // QR Code: Select the model    //       Hex   1D   28   6B   04   00   31   41   n1(x32)   n2(x00) - size of model    // set n1 [49 x31, model 1] [50 x32, model 2] [51 x33, micro qr code]    // https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=140    byte[] modelQR = {(byte)0x1d, (byte)0x28, (byte)0x6b, (byte)0x04, (byte)0x00, (byte)0x31, (byte)0x41, (byte)0x32, (byte)0x00};    // QR Code: Set the size of module    // Hex   1D   28   6B   03   00   31   43   n    // n depends on the printer    // https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=141    byte[] sizeQR = {(byte)0x1d, (byte)0x28, (byte)0x6b, (byte)0x03, (byte)0x00, (byte)0x31, (byte)0x43, (byte)0x08};    //     Hex   1D   28   6B   03   00   31   45   n    // Set n for error correction [48 x30 -> 7%] [49 x31-> 15%] [50 x32 -> 25%] [51 x33 -> 30%]    // https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=142    byte[] errorQR = {(byte)0x1d, (byte)0x28, (byte)0x6b, (byte)0x03, (byte)0x00, (byte)0x31, (byte)0x45, (byte)0x31};    // QR Code: Store the data in the symbol storage area    // Hex   1D   28   6B   pL   pH   31   50   30   d1...dk    // https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=143    //            1D     28     6B     pL     pH cn(49->x31) fn(80->x50) m(48->x30) d1…dk    byte[] storeQR = {(byte)0x1d, (byte)0x28, (byte)0x6b, store_pL, store_pH, (byte)0x31, (byte)0x50, (byte)0x30};    // QR Code: Print the symbol data in the symbol storage area    // Hex   1D   28   6B   03   00   31   51   m    // https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=144    byte[] printQR = {(byte)0x1d, (byte)0x28, (byte)0x6b, (byte)0x03, (byte)0x00, (byte)0x31, (byte)0x51, (byte)0x30};    data = byteMerger(modelQR, sizeQR);    data = byteMerger(data, errorQR);    data = byteMerger(data, storeQR);    data = byteMerger(data, qrCode.getBytes());    data = byteMerger(data, printQR);    return new String(data);  }  /**   * 打印條碼   * @param barcode   * @return   */  public static String getBarcodeCmd(String barcode) {    // 打印 Code-128 條碼時需要使用字符集前綴    // "{A" 表示大寫字母    // "{B" 表示所有字母，數字，符號    // "{C" 表示數字，可以表示 00 - 99 的范圍    byte[] data;    String btEncode;    if (barcode.length() < 18) {      // 字符長度小于15的時候直接輸出字符串      btEncode = "{B" + barcode;    } else {      // 否則做一點優化      int startPos = 0;      btEncode = "{B";      for (int i = 0; i < barcode.length(); i++) {        char curChar = barcode.charAt(i);        if (curChar < 48 || curChar > 57 || i == (barcode.length() - 1)) {          // 如果是非數字或者是最后一個字符          if (i - startPos >= 10) {            if (startPos == 0) {              btEncode = "";            }            btEncode += "{C";            boolean isFirst = true;            int numCode = 0;            for (int j = startPos; j < i; j++) {              if (isFirst) { // 處理第一位                numCode = (barcode.charAt(j) - 48) * 10;                isFirst = false;              } else { // 處理第二位                numCode += (barcode.charAt(j) - 48);                btEncode += (char) numCode;                isFirst = true;              }            }            btEncode += "{B";            if (!isFirst) {              startPos = i - 1;            } else {              startPos = i;            }          }          for (int k = startPos; k <= i; k++) {            btEncode += barcode.charAt(k);          }          startPos = i + 1;        }      }    }    // 設置 HRI 的位置，02 表示下方    byte[] hriPosition = {(byte) 0x1d, (byte) 0x48, (byte) 0x02};    // 最后一個參數表示寬度 取值范圍 1-6 如果條碼超長則無法打印    byte[] width = {(byte) 0x1d, (byte) 0x77, (byte) 0x02};    byte[] height = {(byte) 0x1d, (byte) 0x68, (byte) 0xfe};    // 最后兩個參數 73 ： CODE 128 || 編碼的長度    byte[] barcodeType = {(byte) 0x1d, (byte) 0x6b, (byte) 73, (byte) btEncode.length()};    byte[] print = {(byte) 10, (byte) 0};    data = PrintFormatUtils.byteMerger(hriPosition, width);    data = PrintFormatUtils.byteMerger(data, height);    data = PrintFormatUtils.byteMerger(data, barcodeType);    data = PrintFormatUtils.byteMerger(data, btEncode.getBytes());    data = PrintFormatUtils.byteMerger(data, print);    return new String(data);  }  /**   * 切紙   * @return   */  public static String getCutPaperCmd() {    // 走紙并切紙，最后一個參數控制走紙的長度    byte[] data = {(byte) 0x1d, (byte) 0x56, (byte) 0x42, (byte) 0x15};    return new String(data);  }  /**   * 對齊方式   * @param alignMode   * @return   */  public static String getAlignCmd(int alignMode) {    byte[] data = {(byte) 0x1b, (byte) 0x61, (byte) 0x0};    if (alignMode == ALIGN_LEFT) {      data[2] = (byte) 0x00;    } else if (alignMode == ALIGN_CENTER) {      data[2] = (byte) 0x01;    } else if (alignMode == ALIGN_RIGHT) {      data[2] = (byte) 0x02;    }    return new String(data);  }  /**   * 字體大小   * @param fontSize   * @return   */  public static String getFontSizeCmd(int fontSize) {    byte[] data = {(byte) 0x1d, (byte) 0x21, (byte) 0x0};    if (fontSize == FONT_NORMAL) {      data[2] = (byte) 0x00;    } else if (fontSize == FONT_MIDDLE) {      data[2] = (byte) 0x01;    } else if (fontSize == FONT_BIG) {      data[2] = (byte) 0x11;    }    return new String(data);  }  /**   * 加粗模式   * @param fontBold   * @return   */  public static String getFontBoldCmd(int fontBold) {    byte[] data = {(byte) 0x1b, (byte) 0x45, (byte) 0x0};    if (fontBold == FONT_BOLD) {      data[2] = (byte) 0x01;    } else if (fontBold == FONT_BOLD_CANCEL) {      data[2] = (byte) 0x00;    }    return new String(data);  }  /**   * 打開錢箱   * @return   */  public static String getOpenDrawerCmd() {    byte[] data = new byte[4];    data[0] = 0x10;    data[1] = 0x14;    data[2] = 0x00;    data[3] = 0x00;    return new String(data);  }  /**   * 字符串轉字節數組   * @param str   * @return   */  public static byte[] stringToBytes(String str) {    byte[] data = null;    try {      byte[] strBytes = str.getBytes("utf-8");      data = (new String(strBytes, "utf-8")).getBytes("gbk");    } catch (UnsupportedEncodingException exception) {      exception.printStackTrace();    }    return data;  }  /**   * 字節數組合并   * @param bytesA   * @param bytesB   * @return   */  public static byte[] byteMerger(byte[] bytesA, byte[] bytesB) {    byte[] bytes = new byte[bytesA.length + bytesB.length];    System.arraycopy(bytesA, 0, bytes, 0, bytesA.length);    System.arraycopy(bytesB, 0, bytes, bytesA.length, bytesB.length);    return bytes;  }}

/** * 打印模板 */public class PrintContract {  /**   * 打印內容   */  public static StringBuilder createXxTxt(String ...) {    StringBuilder builder = new StringBuilder();    //設置大號字體以及加粗    builder.append(PrintFormatUtils.getFontSizeCmd(PrintFormatUtils.FONT_BIG));    builder.append(PrintFormatUtils.getFontBoldCmd(PrintFormatUtils.FONT_BOLD));    // 標題    builder.append("Title");    //換行，調用次數根據換行數來控制    addLineSeparator(builder);    //設置普通字體大小、不加粗    builder.append(PrintFormatUtils.getFontSizeCmd(PrintFormatUtils.FONT_NORMAL));    builder.append(PrintFormatUtils.getFontBoldCmd(PrintFormatUtils.FONT_BOLD_CANCEL));    //內容    ......    //設置某兩列文字間空格數, x需要計算出來    addIdenticalStrToStringBuilder(builder, x, " ");    //切紙    builder.append(PrintFormatUtils.getCutPaperCmd());    return builder;  }  /**   * 向StringBuilder中添加指定數量的相同字符   *   * @param printCount  添加的字符數量   * @param identicalStr 添加的字符   */  private static void addIdenticalStrToStringBuilder(StringBuilder builder, int printCount, String identicalStr) {    for (int i = 0; i < printCount; i++) {      builder.append(identicalStr);    }  }  /**   * 根據字符串截取前指定字節數,按照GBK編碼進行截取   *   * @param str 原字符串   * @param len 截取的字節數   * @return 截取后的字符串   */  private static String subStringByGBK(String str, int len) {    String result = null;    if (str != null) {      try {        byte[] a = str.getBytes("GBK");        if (a.length <= len) {          result = str;        } else if (len > 0) {          result = new String(a, 0, len, "GBK");          int length = result.length();          if (str.charAt(length - 1) != result.charAt(length - 1)) {            if (length < 2) {              result = null;            } else {              result = result.substring(0, length - 1);            }          }        }      } catch (Exception e) {        e.printStackTrace();      }    }    return result;  }  /**   * 添加換行符   */  private static void addLineSeparator(StringBuilder builder) {    builder.append("/n");  }  /**   * 在GBK編碼下，獲取其字符串占據的字符個數   */  private static int getCharCountByGBKEncoding(String text) {    try {      return text.getBytes("GBK").length;    } catch (Exception e) {      e.printStackTrace();      return 0;    }  }  /**  * 打印相關配置  */  public static class PrintConfig {    public int maxLength = 30;    public boolean printBarcode = false; // 打印條碼    public boolean printQrCode = false;  // 打印二維碼    public boolean printEndText = true;  // 打印結束語    public boolean needCutPaper = false; // 是否切紙  }}

//調用打印機打印方法，傳入上面某個小票打印模板返回的字符串String str = PrintContract.createXxTxt(...);printer.print(str, null);//打開錢箱方法printer.print(PrintFormatUtils.getOpenDrawerCmd(), null);