将进酒通过本文主要向大家介绍了小票打印,打印格式,打印模板等相关知识,希望对您有所帮助,也希望大家支持linkedu.com www.linkedu.com
小票打印就是向打印设备发送控制打印格式的指令集，而这些打印格式需要去查询对应打印机的API文档，这里我把常用的api给封装了一下
- 文字对齐方式
- 打印字体大小
- 字体是否加粗
- 打印二维码
- 打印条形码
- 切纸
- 打开钱箱
- 字符串转字节数组
- 字符拼接
PrintFormatUtils.java
/**
* 打印格式
* Created by john on 17-3-23.
*/
public class PrintFormatUtils {
// 对齐方式
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
//字体大小
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; // 字体加粗
public static final int FONT_BOLD_CANCEL = 1; // 取消加粗
/**
* 打印二维码
* @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);
}
/**
* 打印条码
* @param barcode
* @return
*/
public static String getBarcodeCmd(String barcode) {
// 打印 Code-128 条码时需要使用字符集前缀
// "{A" 表示大写字母
// "{B" 表示所有字母，数字，符号
// "{C" 表示数字，可以表示 00 - 99 的范围
byte[] data;
String btEncode;
if (barcode.length() < 18) {
// 字符长度小于15的时候直接输出字符串
btEncode = "{B" + barcode;
} else {
// 否则做一点优化
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)) {
// 如果是非数字或者是最后一个字符
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) { // 处理第一位
numCode = (barcode.charAt(j) - 48) * 10;
isFirst = false;
} else { // 处理第二位
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;
}
}
}
// 设置 HRI 的位置，02 表示下方
byte[] hriPosition = {(byte) 0x1d, (byte) 0x48, (byte) 0x02};
// 最后一个参数表示宽度 取值范围 1-6 如果条码超长则无法打印
byte[] width = {(byte) 0x1d, (byte) 0x77, (byte) 0x02};
byte[] height = {(byte) 0x1d, (byte) 0x68, (byte) 0xfe};
// 最后两个参数 73 ： CODE 128 || 编码的长度
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);
}
/**
* 切纸
* @return
*/
public static String getCutPaperCmd() {
// 走纸并切纸，最后一个参数控制走纸的长度
byte[] data = {(byte) 0x1d, (byte) 0x56, (byte) 0x42, (byte) 0x15};
return new String(data);
}
/**
* 对齐方式
* @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);
}
/**
* 字体大小
* @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)