首先要有设备的IP，端口号一般默认的是9100
- //打印设备网络IP
- etIp.setText("192.168.2.249");
- //打印设备端口号 一般为9100
- etPort.setText("9100");
之后建立连接：
- client = new Socket(etIp.getText().toString(), port);
- //打印输出 控制输出字符集位GBK 否则中文乱码
- PrintWriter oStream = new PrintWriter((new OutputStreamWriter(client.getOutputStream(),"GBK")),true);
发送打印指令：
- /* 纵向放大一倍 */
- oStream.write(0x1c);
- oStream.write(0x21);
- oStream.write(8);
- /* 横向纵向都放大一倍 */
- // oStream.write(0x1c);
- // oStream.write(0x21);
- // oStream.write(12);
-
-
- oStream.println("\t\t"+"餐厅订单"+"\n");
- String printStr = "交易流水："+serNo+
- "\n"+"商户名称："+"测试商户"+
- "\n"+"订单号："+orderNo+
- "\n"+"卡号："+CardNo+
- "\n"+"时间："+time+
- "\n"+"交易金额："+Amount+
- "\n"+"**********************************************************";
- oStream.print(printStr);
-
- oStream.println("\n\n");
这里还是给上完整DEMO
这里还有csdn下载连接http://download.csdn.net/detail/u013065139/7956445
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demo和java打印文档