Java 在蓝牙打印机上打印 UTF-8 字符
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原文地址: http://stackoverflow.com/questions/18231314/
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Printing UTF-8 characters on bluetooth printer
提问by Morten
I have an application where I should be able to print on a bluetooth printer, Zebra iMZ320, but I have some problems with UTF-8 specific characters (?, ? or ?).
我有一个应用程序，我应该能够在蓝牙打印机 Zebra iMZ320 上进行打印，但是我在使用 UTF-8 特定字符（?、? 或 ?）时遇到了一些问题。
I am connecting to the device as follows:
我按如下方式连接到设备：
BluetoothDevice device = BluetoothAdapter.getDefaultAdapter().getRemoteDevice(macAddr);
Method m = device.getClass().getMethod("createRfcommSocket", new Class[] { Integer.TYPE });
bSocket = (BluetoothSocket)m.invoke(device, new Object[] { Integer.valueOf(1) });
bSocket.connect();
outStream = bSocket.getOutputStream();
inStream = bSocket.getInputStream();
After the socket is open, I am sending the data in CPCL:
套接字打开后，我在CPCL中发送数据：
String cpclData = "! U1 SETLP 5 2 24 \r\n"+text+"\r\n";
outStream.write(cpclData.getBytes());
outStream.flush();
But when I am trying to print the mentioned characters, it writes some abnormal characters instead.
但是当我尝试打印提到的字符时，它会写一些异常字符。
I contacted Zebra, and one of their engineers wrote that I should try the following:
我联系了 Zebra，他们的一位工程师写道，我应该尝试以下操作：
! 0 200 200 80 1
IN-MILLIMETERS
JOURNAL
CENTER
COUNTRY NORWAY
TEXT 4 0 0 8 COUNTRY IS NORWAY OR DENMARK
TEXT 4 0 0 15 ? ? ?
PRINT
But it does absolutely nothing.
但它绝对没有任何作用。
采纳答案by Ovi Tisler
回答by JWqvist
回答by código
it is simple if you try to print a label from android device; when you write the data use "ISO-8859-1" encoding, look:
如果您尝试从 android 设备打印标签，这很简单；当您使用“ISO-8859-1”编码编写数据时，请查看：
String cpclData = "! U1 SETLP 5 2 24 \r\n"+text+"\r\n";
outStream.write(EncodingUtils.getBytes(cpclData, "ISO-8859-1"));
outStream.flush();
回答by jsanmarb
In a similar problem, trying to print spanish special characters on a Zebra MZ220 printer via Bluetooth, finally I did the following (in this answer I add the characters ?, ?, ?, ?, ?, ?) :
在一个类似的问题中，尝试通过蓝牙在 Zebra MZ220 打印机上打印西班牙语特殊字符，最后我做了以下操作（在这个答案中，我添加了字符 ?, ?, ?, ?, ?, ?）：
Define a piece of code that converts the objective string into the desired byte array:
public class Util { public final static String caracteresEspeciales = "üüááééííóóúú????????"; public final static byte[] codigoCaracteresEspeciales = new byte[] {(byte) 0xDC, (byte) 0xFC, (byte) 0xC1, (byte) 0xE1, (byte) 0xC9, (byte) 0xE9, (byte) 0xCD, (byte) 0xED, (byte) 0xD3, (byte) 0xF3, (byte) 0xDA, (byte) 0xFA, (byte) 0xD1, (byte) 0xF1, (byte) 0xC5, (byte) 0xC6, (byte) 0xD8, (byte) 0xE5, (byte) 0xE6, (byte) 0xF8 }; public static byte[] stringABytes(String s) { int i, l, i_especial; byte b; byte[] b_arr; String s_sub; if(s == null) return null; if((l= s.length()) < 1) return new byte[0]; // convertimos a byte carácter por carácter b_arr= new byte[l]; for(i= 0; i < l; i++) { s_sub= s.substring(i, i + 1); i_especial= Util.caracteresEspeciales.indexOf(s_sub); if(i_especial < 0) b= (s_sub.getBytes())[0]; else b= Util.codigoCaracteresEspeciales[i_especial]; b_arr[i]= b; } return b_arr; } }
定义一段代码，将目标字符串转换为所需的字节数组：
public class Util { public final static String caracteresEspeciales = "üüááééííóóúú????????"; public final static byte[] codigoCaracteresEspeciales = new byte[] {(byte) 0xDC, (byte) 0xFC, (byte) 0xC1, (byte) 0xE1, (byte) 0xC9, (byte) 0xE9, (byte) 0xCD, (byte) 0xED, (byte) 0xD3, (byte) 0xF3, (byte) 0xDA, (byte) 0xFA, (byte) 0xD1, (byte) 0xF1, (byte) 0xC5, (byte) 0xC6, (byte) 0xD8, (byte) 0xE5, (byte) 0xE6, (byte) 0xF8 }; public static byte[] stringABytes(String s) { int i, l, i_especial; byte b; byte[] b_arr; String s_sub; if(s == null) return null; if((l= s.length()) < 1) return new byte[0]; // convertimos a byte carácter por carácter b_arr= new byte[l]; for(i= 0; i < l; i++) { s_sub= s.substring(i, i + 1); i_especial= Util.caracteresEspeciales.indexOf(s_sub); if(i_especial < 0) b= (s_sub.getBytes())[0]; else b= Util.codigoCaracteresEspeciales[i_especial]; b_arr[i]= b; } return b_arr; } }
Those hexadecimal codes we can get them from PROMAN-CPCL document that coming whith the printer (APPENDIX C- CHARACTER TABLES, Latin 1 Character Set table).
我们可以从打印机随附的 PROMAN-CPCL 文档（附录 C-字符表，Latin 1 字符集表）中获取这些十六进制代码。
Convert the string and send it.
String datos_cplc; byte[] b_arr; ... datos_cplc= "! 0 200 200 48 1\r\n" + "TEXT 7 0 0 0 12345678901234567890123456789012\r\n" + "TEXT 7 0 0 25 üüááééííóóúú???????? AEIOUaeiou1\r\n" + "FORM\r\n" + "PRINT\r\n"; b_arr= Util.stringABytes(datos_cplc); ... connection.write(b_arr);The result:
转换字符串并发送。
String datos_cplc; byte[] b_arr; ... datos_cplc= "! 0 200 200 48 1\r\n" + "TEXT 7 0 0 0 12345678901234567890123456789012\r\n" + "TEXT 7 0 0 25 üüááééííóóúú???????? AEIOUaeiou1\r\n" + "FORM\r\n" + "PRINT\r\n"; b_arr= Util.stringABytes(datos_cplc); ... connection.write(b_arr);结果：
回答by Isaac Meany
In my case, it worked perfectly the solution provided by @jsanmarb but using the Code page 850 (Latin-1 - Western European languages) found here: https://www.ascii-codes.com/cp850.html
就我而言，它完美地适用于@jsanmarb 提供的解决方案，但使用此处找到的代码页 850（Latin-1 - 西欧语言）：https://www.ascii-codes.com/cp850.html
