实现网络打印工具类

public class NetPrinter {
public Socket socket;

public int POS_OPEN_NETPORT = 9100;// 0X238c,网络打印机默认端口为9100
public boolean IFOpen = false;
public int Net_SendTimeout = 1000;
public int Net_ReceiveTimeout = 1500;
public String command = ""; //打印命令字符串
public byte[] outbytes; //传输的命令集
String TAG = "test";

PrinterCMD pcmd = new PrinterCMD();

/// <summary>
/// 网络打印机 打开网络打印机
/// </summary>
/// <param name="ipaddress"></param>
/// <returns></returns>
public boolean Open(String ipaddress, int netport) {
if (socket == null) {
try {
SocketAddress ipe = new InetSocketAddress(ipaddress, netport);
socket = new Socket();  //Socket(ipaddress, netport,true);
socket.connect(ipe);
socket.setSoTimeout(Net_ReceiveTimeout);
//socket.SendTimeout = Net_SendTimeout;
IFOpen = true;
Log.d(TAG, "Open: 连接成功");
} catch (Exception e) {
Log.d(TAG, "Open: 连接不成功");
e.printStackTrace();
IFOpen = false;
}
} else {
Log.d(TAG, "Open: ");
try {
socket.close();
SocketAddress ipe = new InetSocketAddress(ipaddress, netport);
socket = new Socket();  //Socket(ipaddress, netport,true);
socket.connect(ipe);
socket.setSoTimeout(Net_ReceiveTimeout);
//socket.SendTimeout = Net_SendTimeout;
IFOpen = true;
} catch (Exception e) {
e.printStackTrace();
IFOpen = false;
}
}
return IFOpen;
}

/// <summary>
/// 网络打印机 关闭
/// </summary>
/// <param name="ipaddress"></param>
/// <returns></returns>
public void Close() {
try {
socket.close();
socket = null;
} catch (Exception e) {
e.printStackTrace();
}
}

/// <summary>
/// 网络打印机 初始化打印机
/// </summary>
public void Set() {
try {
command = pcmd.CMD_SetPos();
OutputStream stream = socket.getOutputStream();
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/// <summary>
/// 网络打印机 打印的文本
/// </summary>
/// <param name="pszString"></param>
/// <param name="nFontAlign">0:居左 1:居中 2:居右</param>
/// <param name="nfontsize">字体大小0:正常大小 1:两倍高 2:两倍宽 3:两倍大小 4:三倍高 5:三倍宽 6:三倍大小 7:四倍高 8:四倍宽 9:四倍大小 10:五倍高 11:五倍宽 12:五倍大小</param>
/// <param name="ifzhenda">0:非针打  1:针打</param>
public void PrintText(String pszString, int nFontAlign, int nFontSize, int ifzhenda) {
try {
OutputStream stream = socket.getOutputStream();
command = pcmd.CMD_TextAlign(nFontAlign);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

if (ifzhenda == 1) {
command = pcmd.CMD_FontSize_BTP_M280(nFontSize);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

command = pcmd.CMD_FontSize_BTP_M2801(nFontSize);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);
} else {
command = pcmd.CMD_FontSize(nFontSize);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);
}

command = pszString;// +CMD_Enter();
outbytes = command.getBytes(Charset.forName("GB2312")); //Charset.defaultCharset()); //forName("UTF-8")
stream.write(outbytes);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return;
}

}

/// <summary>
/// 网络打印机 回车
/// </summary>
public void PrintEnter() {
try {
command = pcmd.CMD_Enter();
OutputStream stream = socket.getOutputStream();
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/// <summary>
/// 网络打印机 切割
/// </summary>
/// <param name="pagenum">切割时，走纸行数</param>
public void CutPage(int pagenum) {
try {
OutputStream stream = socket.getOutputStream();

command = pcmd.CMD_PageGO(pagenum) + pcmd.CMD_Enter();
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

command = pcmd.CMD_CutPage() + pcmd.CMD_Enter();
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/// <summary>
/// 网络打印机换行
/// </summary>
/// <param name="lines"></param>
public void PrintNewLines(int lines) {
try {
OutputStream stream = socket.getOutputStream();

command = pcmd.CMD_FontSize(0);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);
for (int i = 0; i < lines; i++) {
command = "" + pcmd.CMD_Enter();
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/// <summary>
/// 打开钱箱
/// </summary>
public void OpenQianXiang() {
try {
OutputStream stream = socket.getOutputStream();
command = "" + pcmd.CMC_QianXiang();
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

/// <summary>
/// 打印条码
/// </summary>
/// <param name="numstr"></param>
/// <param name="height"></param>
/// <param name="width"></param>
/// <param name="numweizi">1:上方  2:下方  0:不打印数字</param>
/// <param name="fontalign">0:居左 1:居中 2:居右</param>
/// <param name="fontsize">字体大小0:正常大小 1:两倍高 2:两倍宽 3:两倍大小 4:三倍高 5:三倍宽 6:三倍大小 7:四倍高 8:四倍宽 9:四倍大小 10:五倍高 11:五倍宽 12:五倍大小</param>
public void PrintTiaoMa(String numstr, int height, int width, int numweizi, int fontalign, int fontsize) {
try {
OutputStream stream = socket.getOutputStream();
command = pcmd.CMD_TiaoMaHeight(height);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

command = pcmd.CMD_TiaoMaWidth(width);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

command = pcmd.CMD_TiaoMaWeiZi(numweizi);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

command = pcmd.CMD_TextAlign(fontalign);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

command = pcmd.CMD_FontSize(fontsize);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);

command = pcmd.CMD_TiaoMaPrint(numstr);
outbytes = command.getBytes(Charset.forName("ASCII"));
stream.write(outbytes);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

class PrinterCMD {
/// <summary>
/// 初始化打印机
/// </summary>
/// <returns></returns>
public String CMD_SetPos() {
return new StringBuffer().append((char) 27).append((char) 64).toString();
}

/// <summary>
/// 换行（回车）
/// </summary>
/// <returns></returns>
public String CMD_Enter() {
return new StringBuffer().append((char) 10).toString();
}

/// <summary>
/// 对齐模式
/// </summary>
/// <param name="align">0:左对齐 1:中对齐 2:右对齐</param>
/// <returns></returns>
public String CMD_TextAlign(int align) {
return new StringBuffer().append((char) 27).append((char) 97).append((char) align).toString();
}

/// <summary>
/// 字体的大小
/// </summary>
/// <param name="nfontsize">0:正常大小 1:两倍高 2:两倍宽 3:两倍大小 4:三倍高 5:三倍宽 6:三倍大小 7:四倍高 8:四倍宽 9:四倍大小 10:五倍高 11:五倍宽 12:五倍大小</param>
/// <returns></returns>
public String CMD_FontSize(int nfontsize) {
String _cmdstr = "";

//设置字体大小
switch (nfontsize) {
case -1:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 0).toString();//29 33
break;

case 0:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 0).toString();//29 33
break;

case 1:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 1).toString();
break;

case 2:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 16).toString();
break;

case 3:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 17).toString();
break;

case 4:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 2).toString();
break;

case 5:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 32).toString();
break;

case 6:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 34).toString();
break;

case 7:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 3).toString();
break;

case 8:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 48).toString();
break;

case 9:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 51).toString();
break;

case 10:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 4).toString();
break;

case 11:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 64).toString();
break;

case 12:
_cmdstr = new StringBuffer().append((char) 29).append((char) 33).append((char) 68).toString();
break;

}
return _cmdstr;
}

/// <summary>
/// BTP-M280(针打) 倍宽倍高
/// </summary>
/// <param name="size">0:取消倍宽倍高模式  1:倍高模式 2:倍宽模式 3:两倍大小</param>
/// <returns></returns>
public String CMD_FontSize_BTP_M280(int size) {
String _cmdstr = "";
//只有0和1两种模式
int fontsize = size;

switch (fontsize) {
case 1:
_cmdstr = new StringBuffer().append((char) 28).append((char) 33).append((char) 8).toString();
break;
case 2:
_cmdstr = new StringBuffer().append((char) 28).append((char) 33).append((char) 4).toString();
break;
case 3:
_cmdstr = new StringBuffer().append((char) 28).append((char) 87).append((char) 1).toString();
break;
default:
_cmdstr = new StringBuffer().append((char) 28).append((char) 87).append((char) 0).toString();
break;
}

return _cmdstr;
}

/// <summary>
/// BTP-M280(针打) 倍宽倍高
/// </summary>
/// <param name="size">0:取消倍宽倍高模式  1:倍高模式 2:倍宽模式 3:两倍大小</param>
/// <returns></returns>
public String CMD_FontSize_BTP_M2801(int size) {
String _cmdstr = "";
//只有0和1两种模式
int fontsize = size;

switch (fontsize) {
case 1:
_cmdstr = new StringBuffer().append((char) 27).append((char) 33).append((char) 17).toString();
break;
case 2:
_cmdstr = new StringBuffer().append((char) 27).append((char) 33).append((char) 33).toString();
break;
case 3:
_cmdstr = new StringBuffer().append((char) 27).append((char) 33).append((char) 49).toString();
break;
default:
_cmdstr = new StringBuffer().append((char) 27).append((char) 33).append((char) 1).toString();
break;
}

return _cmdstr;
}

/// <summary>
/// 走纸
/// </summary>
/// <param name="line">走纸的行数</param>
/// <returns></returns>
public String CMD_PageGO(int line) {
return new StringBuffer().append((char) 27).append((char) 100).append((char) line).toString();
}

/// <summary>
/// 切割
/// </summary>
/// <returns></returns>
public String CMD_CutPage() {
return new StringBuffer().append((char) 27).append((char) 109).toString();
}

/// <summary>
/// 返回状态(返回8位的二进制)
/// </summary>
/// <param name="num">1:打印机状态 2:脱机状态 3:错误状态 4:传送纸状态</param>
/// 返回打印机状态如下：
/// 第一位：固定为0
/// 第二位：固定为1
/// 第三位：0:一个或两个钱箱打开  1:两个钱箱都关闭
/// 第四位：0:联机  1:脱机
/// 第五位：固定为1
/// 第六位：未定义
/// 第七位：未定义
/// 第八位：固定为0
///
/// 返回脱机状态如下：
/// 第一位：固定为0
/// 第二位：固定为1
/// 第三位：0:上盖关  1:上盖开
/// 第四位：0:未按走纸键  1:按下走纸键
/// 第五位：固定为1
/// 第六位：0:打印机不缺纸  1: 打印机缺纸
/// 第七位：0:没有出错情况  1:有错误情况
/// 第八位：固定为0
///
/// 返回错误状态如下：
/// 第一位：固定为0
/// 第二位：固定为1
/// 第三位：未定义
/// 第四位：0:切刀无错误  1:切刀有错误
/// 第五位：固定为1
/// 第六位：0:无不可恢复错误  1: 有不可恢复错误
/// 第七位：0:打印头温度和电压正常  1:打印头温度或电压超出范围
/// 第八位：固定为0
///
/// 返回传送纸状态如下：
/// 第一位：固定为0
/// 第二位：固定为1
/// 第三位：0:有纸  1:纸将尽
/// 第四位：0:有纸  1:纸将尽
/// 第五位：固定为1
/// 第六位：0:有纸  1:纸尽
/// 第七位：0:有纸  1:纸尽
/// 第八位：固定为0
/// <returns></returns>
public String CMD_ReturnStatus(int num) {
return new StringBuffer().append((char) 16).append((char) 4).append((char) num).toString();
}

/// <summary>
/// 条码高宽
/// </summary>
/// <param name="num"></param>
/// <returns></returns>
public String CMD_TiaoMaHeight(int num) {
//return ((char)29).append"h" + ((char)num).toString();
return new StringBuffer().append((char) 29).append((char) 104).append((char) num).toString();
}

/// <summary>
/// 条码宽度
/// </summary>
/// <param name="num"></param>
/// <returns></returns>
public String CMD_TiaoMaWidth(int num) {
//return ((char)29).append"w" + ((char)num).toString();
return new StringBuffer().append((char) 29).append((char) 119).append((char) num).toString();
}

/// <summary>
/// 条码数字打印的位置
/// </summary>
/// <param name="num">1:上方  2:下方  0:不打印数字</param>
/// <returns></returns>
public String CMD_TiaoMaWeiZi(int num) {
return new StringBuffer().append((char) 29).append("H").append((char) num).toString();
}

/// <summary>
/// 开始打印(条码类型为CODE39)
/// </summary>
/// <param name="numstr"></param>
/// <returns></returns>
public String CMD_TiaoMaPrint(String numstr) {
//return ((char)29).append"k" + ((char)4).appendnumstr + ((char)0).toString();
return new StringBuffer().append((char) 29).append((char) 107).append((char) 4).append(numstr).append((char) 0).toString();
}

/// <summary>
/// 打开钱箱
/// </summary>
/// <returns></returns>
public String CMC_QianXiang() {
return new StringBuffer().append((char) 27).append((char) 112).append((char) 0).append((char) 60).append((char) 255).toString();
}
}