Android佳博网络打印机例子
目前市面上的热敏型网络打印机都是使用ESC指令集打印的。大部分涉及到：检查是否有纸、居中居左对其、加粗、取消加粗、放大、取消放大、设置单元格大小、设置纠错正等级、加载二维码、打印二维码、加载走纸命令等。
以下对应的指令代码：（PrintInfo类）
/**
* 检查是否有纸指令
*/
public static final byte[] stateBype2 = new byte[] { 0x1B, 0x76 };
/**
* 居左对齐
*/
public static final Byte[] toLeft = new Byte[] { 0x1B, 0x61, 0x00 };
/**
* 居中对齐
*/
public static final Byte[] toCenter = new Byte[] { 0x1B, 0x61, 0x01 };
/**
* 加大2倍
*/
public static final Byte[] toLarge = new Byte[] { 0x1D, 0x21, 0x11 };
/**
* 取消加大
*/
public static final Byte[] cancleLarge = new Byte[] { 0x1D, 0x21, 0x00 };
/**
* 加粗
*/
public static final Byte[] toLarge2 = new Byte[] { 0x1B, 0x45, 0x01 };
/**
* 取消加粗
*/
public static final Byte[] cancleLarge2 = new Byte[] { 0x1B, 0x45, 0x00 };
/**
* 设置单元格大小
*/
public static final Byte[] setCodeSize = new Byte[] { 0x1D, 0x28, 0x6B, 0x30, 0x67, 0x07 };
/**
* 设置纠错正等级
*/
public static final Byte[] setCodeLevel = new Byte[] { 0x1D, 0x28, 0x6B, 0x30, 0x69, 0x48 };
/**
* 加载二维码
*/
// public static final Byte[] setCode2 = new Byte[] { 0x1D, 0x28, 0x6B, 0x30, (byte) 0x80, 0x55, 0x00 };
public static Byte[] setCode = new Byte[7];
/**
* 打印二维码
*/
public static final Byte[] printCode = new Byte[] { 0x1D, 0x28, 0x6B, 0x30, (byte) 0x81 };
/**
* 加载走纸命令
*/
public static final Byte[] cut = new Byte[] { 0x1D, 0x56, 0x42, 0x00 };// 切纸并且走纸
/**
* 设置加载二维码指令
* @param code
*/
public static void doSetCode(String code) {
PrintInfo.setCode[0] = 0x1D;
PrintInfo.setCode[1] = 0x28;
PrintInfo.setCode[2] = 0x6B;
PrintInfo.setCode[3] = 0x30;
PrintInfo.setCode[4] = (byte) 0x80;
PrintInfo.setCode[5] = (byte) code.length();
PrintInfo.setCode[6] = 0x00;
}
/**
* 合并两个byte数组
*
* @param byte_1
* @param byte_2
* @return
*/
public static byte[] byteMerger(byte[] byte_1, byte[] byte_2) {
byte[] byte_3 = new byte[byte_1.length+byte_2.length];
System.arraycopy(byte_1, 0, byte_3, 0, byte_1.length);
System.arraycopy(byte_2, 0, byte_3, byte_1.length, byte_2.length);
return byte_3;
}
/**
* int[]转byte[]
* @param arg
* @return
*/
public static byte[] intTobyte(int arg[]) {
byte[] byteTmp = new byte[arg.length];
for (int i = 0; i < arg.length; i++) {
byteTmp[i] = (byte)arg[i];
}
return byteTmp;
}
/**
* byte转Byte
*
* @param srcArray
* @param cpyArray
*/
public static void CopyArray(byte[] srcArray, Byte[] cpyArray) {
for (int index = 0; index < cpyArray.length; index++) {
cpyArray[index] = srcArray[index];
}
}
/**
* List转换为byte[]
* @param ByteArray
* @return
*/
public static byte[] convertFromListByteArrayTobyteArray(
List ByteArray) {
byte[] byteArray = new byte[ByteArray.size()];
for (int index = 0; index < byteArray.length; index++) {
byteArray[index] = ByteArray.get(index);
}
return byteArray;
}
/**
* 去重复
* @param li
* @return
*/
public static List removeDuplicateWithOrder(List li) {
List list = new ArrayList();
for(int i=0; i 网络打印几乎都是通过Scoket连接、输入输出流传输指令进行打印的。
socket连接打印机的端口一般都是：
public static final int PORT_CHECKPRINT = 4000;
public static final int PORT_PRINT = 9100;
一般的步骤：
1、检查是否有纸
/**
* 佳博打印机，检查纸的状态：
* 当接收状态为20时，表示网络打印机是正常状态；接收状态为28(无纸)或60(没关盖)时，表示不正常状态
*/
private boolean doCheckJiaboPaperState() {
boolean flag = false;
Socket socket2 = null;
try {
socket2 = new Socket();
InetSocketAddress isa = new InetSocketAddress(printIp, Config.NetConfig.PORT_CHECKPRINT);
socket2.connect(isa, Config.NetConfig.TIMEOUT);
BufferedInputStream bis = new BufferedInputStream(socket2.getInputStream());
OutputStream bos = socket2.getOutputStream();
bos.write(PrintInfo.stateBype2);
bos.flush();
int tmp = bis.read();
Common.showDeBug(tmp);
if (tmp == 20) {
flag = true;
} else {
flag = false;
}
} catch (Exception e) {
flag = false;
e.printStackTrace();
} finally {
try {
if (socket2 != null) {
socket2.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
return flag;
}
}2、组装数据进行打印：
//组装数据
ArrayList list = new ArrayList();
Byte[] tempList = null;
byte[] data = null;
//title部分
list.addAll(Arrays.asList(PrintInfo.toLarge));
list.addAll(Arrays.asList(PrintInfo.toCenter));
data = title.getBytes("GB2312");
tempList = new Byte[data.length];
PrintInfo.CopyArray(data, tempList);
list.addAll(Arrays.asList(tempList));
list.addAll(Arrays.asList(PrintInfo.cancleLarge));
// 加载切纸指令
list.addAll(Arrays.asList(PrintInfo.cut));
Socket socketPrint = null;
try {
socketPrint = new Socket();
InetSocketAddress isa = new InetSocketAddress(printIp, printPORT);
socketPrint.connect(isa, Config.NetConfig.TIMEOUT);
OutputStream bos = socketPrint.getOutputStream();
//向打印机发送数据
byte[] bt = PrintInfo.convertFromListByteArrayTobyteArray(list);
bos.write(bt, 0, bt.length);
bos.flush();
} catch (IOException e) {
e.printStackTrace();
} catch (DigestException e) {
e.printStackTrace();
} finally {
try {
socketPrint.close();
} catch (IOException e) {
e.printStackTrace();
}
}
list = null;
tempList = null;
data = null;
bt = null; 3、加载二维码：
加载二维码有点不一样的。
list.addAll(Arrays.asList(PrintInfo.toCenter));
list.addAll(Arrays.asList(PrintInfo.setCodeSize));
list.addAll(Arrays.asList(PrintInfo.setCodeLevel));
PrintInfo.doSetCode(code);
list.addAll(Arrays.asList(PrintInfo.setCode));
data = (code+"\r\n\r\n").getBytes("GB2312");
tempList = new Byte[data.length];
PrintInfo.CopyArray(data, tempList);
list.addAll(Arrays.asList(tempList));
list.addAll(Arrays.asList(PrintInfo.printCode));
当然部分打印机是没有切刀的，所有没有切刀的可以不用调用切纸指令。
ESC指令集其实有很多，有兴趣的可以查看光盘里面的资料。