socket实现手机连接网络打印机打印pos单

2019-08-09 未来之窗软件服务

打印的工具类：

public class PrintLine {
String TAG = "xxl";
static String PRINT_IP = "192.168.1.206";
static int PRINT_PORT = 9100;
OutputStream socketOut = null;
OutputStreamWriter writer = null;
String[] Colum_Name = new String[] { "ID", "菜名", "份数", "小计金额" };// 设定小票列标题
/**
* @throws IOException
*
*/
public PrintLine() throws IOException {
// TODO Auto-generated constructor stub
// 建立打印机连接
//
Socket socket = new Socket( PRINT_IP, PRINT_PORT);
Log.i(TAG, PRINT_PORT+"");
socketOut = socket.getOutputStream();
socket.isClosed();
writer = new OutputStreamWriter(socketOut, "GBK");
}
/**
* @param PRINT_DATA
* 小票主要数据
* @param GS_INFO
* 小票附带信息
* @param CAIDAN_SN
* 小票号码
*/
public void print(List<Map<String, Object>> PRINT_DATA,
Map<String, String> GS_INFO, String CAIDAN_SN) {
/*
* 接收小票页面公司信息 Map<String,String> map=new HashMap<String,String>();
* map.put("GS_Name", "武汉联兴科技有限公司"); map.put("GS_Address",
* "武汉市解放大道2679号"); map.put("GS_Tel", "13507115045"); map.put("GS_Qq",
* "138027869");
*/
try {
// 条码打印指令
byte[] PRINT_CODE = new byte[9];
PRINT_CODE[0] = 0x1d;
PRINT_CODE[1] = 0x68;
PRINT_CODE[2] = 120;
PRINT_CODE[3] = 0x1d;
PRINT_CODE[4] = 0x48;
PRINT_CODE[5] = 0x10;
PRINT_CODE[6] = 0x1d;
PRINT_CODE[7] = 0x6B;
PRINT_CODE[8] = 0x02;
// 清除字体放大指令
byte[] CLEAR_FONT = new byte[3];
CLEAR_FONT[0] = 0x1c;
CLEAR_FONT[1] = 0x21;
CLEAR_FONT[2] = 1;
// 字体加粗指令
byte[] FONT_B = new byte[3];
FONT_B[0] = 27;
FONT_B[1] = 33;
FONT_B[2] = 8;
// 字体横向放大一倍
byte[] FD_FONT = new byte[3];
FD_FONT[0] = 0x1c;
FD_FONT[1] = 0x21;
FD_FONT[2] = 4;
// 计算合计金额
int price = 0;
// 初始化打印机
socketOut.write(27);
socketOut.write(27);
socketOut.write(FD_FONT);// 字体放大
socketOut.write(FONT_B);// 字体加粗
//公司名称
writer.write(" " + GS_INFO.get("GS_Name") + " \r\n");
writer.flush();// 关键,很重要,不然指令一次性输出,后面指令覆盖前面指令,导致取消放大指令无效
socketOut.write(CLEAR_FONT);
socketOut.write(10);
//编号
writer.write("NO: " + CAIDAN_SN + " \r\n");
writer.write("-------------------------------------\r\n");
writer.write(Fix_String_Lenth(1,Colum_Name[0], 6)
+ Fix_String_Lenth(0,Colum_Name[1], 14)
+ Fix_String_Lenth(1,Colum_Name[2], 4)
+ Fix_String_Lenth(1,Colum_Name[3], 6) + "\r\n");
for (int i = 0; i < PRINT_DATA.size(); i++) {
int b =PRINT_DATA.get(i).get("cai_name").toString().length();
writer.write(Fix_String_Lenth(1,i + 1 + "", 6)
+ Fix_String_Lenth(0,PRINT_DATA.get(i).get("cai_name")
.toString(), 18-b)
+ Fix_String_Lenth(1,1 + "", 6)
+ Fix_String_Lenth(1,PRINT_DATA.get(i).get("cai_price")
.toString(), 6) + "\r\n");
price += Integer.parseInt(PRINT_DATA.get(i).get("cai_price")
.toString());
}
writer.write("-------------------------------------\r\n");
writer.write("本单共 " + PRINT_DATA.size() + " 道菜品,合计费用: " + price
+ "元\r\n");
writer.write("-------------------------------------\r\n");
writer.write("地址: " + GS_INFO.get("GS_Address") + "\r\n");
writer.write("联系电话: " + GS_INFO.get("GS_Tel") + " \r\n");
writer.write("-------------------------------------\r\n");
writer.write(" 欢迎品偿谢谢惠顾\r\n");
// 下面指令为打印完成后自动走纸
writer.write(27);
writer.write(100);
writer.write(4);
writer.write(10);
writer.close();
socketOut.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* 字符串长度补齐,方便打印时对齐,美化打印页面,不过中文计算好像有点问题
*
* @param strs
* 源字符
* @param len
* 指定字符长度
* @return
* @throws UnsupportedEncodingException
*/
public String Fix_String_Lenth(int type ,String strs, int len) {
String strtemp = strs;
int len1 = strs.length();
switch (type) {
case 0:
while (strtemp.length() < len) {
strtemp += " ";}
break;
case 1:
while (strtemp.length() < len) {
strtemp += " ";}
break;
default:

break;
}

return strtemp;
}
}

调用打印工具类打印的Activity

package com.example.airprint;

import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener{

String TAG = "xxl";
List list;
Map<String,String> map;
Map<String,Object> dishMap;
Map<String,Object> dishMap1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btn = (Button) findViewById(R.id.print);
btn.setOnClickListener(this);
}

@Override
public void onClick(View v) {
list = new ArrayList<Map<String, Object>>();
dishMap = new HashMap<String,Object>();
dishMap1 = new HashMap<String,Object>();
dishMap.put("cai_name", "地三鲜");
dishMap.put("cai_price", "20");
dishMap1.put("cai_name", "长豆角肉末盖浇饭");
dishMap1.put("cai_price", "10");
list.add(dishMap);
list.add(dishMap1);
map =new HashMap<String,String>();
map.put("GS_Name", "杭州友络软件有限公司");
map.put("GS_Address",
"浙江-杭州，滨江区南环路3760号保亿创艺大厦1203室");
map.put("GS_Tel", "13507115045");
map.put("GS_Qq","138027869");
Log.i(TAG, map.get("GS_Address"));

SimpleDateFormat formatter = new SimpleDateFormat ("yyyy年MM月dd日 HH:mm:ss ");
Date curDate = new Date(System.currentTimeMillis());//获取当前时间
final String str = formatter.format(curDate); //可以获取当前的年月时分,也可以分开写:

new Thread(){
@SuppressWarnings("unchecked")
public void run() {
try {
new PrintLine().print(list,map,str);
Log.i(TAG, map.get("GS_Name"));
} catch (IOException e) {
Log.i(TAG, e+"");
e.printStackTrace();
}
};

}.start();

}

}

pos打印机设置字体大小的代码：

String content = "数据测据测试一下字体的大小\n";
Socket client = new Socket(ip, port);
OutputStream os = client.getOutputStream();
//字体横向放大一倍
os.write(0x1c);
os.write(0x21);
os.write(4);
os.write(content.getBytes("gbk"));
//字体纵向放大一倍
os.write(0x1c);
os.write(0x21);
os.write(8);
os.write(content.getBytes("gbk"));
//字体横向纵向均放大一倍
os.write(0x1c);
os.write(0x21);
os.write(4);
os.write(content.getBytes("gbk"));
os.flush();
由于POS打印机的类型不同，可能支持的EPSON指令也不同。就拿放大字体来说，pos58 打印机和 pos80 打印机指令就不尽相同，那么如何兼容多种打印机呢。
比如说，有的打印机并不是使用 0x1c 作为放大指令，而是使用 0x1b 作为放大指令