前言
前一段時間由於工作需要,要研究一下安卓程序調用打印機打印小票,並且要求不能使用藍牙調用,研究了一下,可以利用socket連接,來實現打印功能。寫了個Demo,分享一下。
工具:一臺打印機(芯燁XP-80XX),一臺安卓測試機
開發環境:Android Studio 1.5
需求:點擊按鈕,實現打印小票功能,小票上除必要文字外,還要有二維碼。
封裝了一個Pos打印工具類:
package com.example.haoguibao.myapplication;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.Socket;
/**
* Created by haoguibao on 16/2/18.
* Description : 封裝Pos機打印工具類
* Revision :
*/
public class Pos {
//定義編碼方式
private static String encoding = null;
private Socket sock = null;
// 通過socket流進行讀寫
private OutputStream socketOut = null;
private OutputStreamWriter writer = null;
/**
* 初始化Pos實例
*
* @param ip 打印機IP
* @param port 打印機端口號
* @param encoding 編碼
* @throws IOException
*/
public Pos(String ip, int port, String encoding) throws IOException {
sock = new Socket(ip, port);
socketOut = new DataOutputStream(sock.getOutputStream());
this.encoding = encoding;
writer = new OutputStreamWriter(socketOut, encoding);
}
/**
* 關閉IO流和Socket
*
* @throws IOException
*/
protected void closeIOAndSocket() throws IOException {
writer.close();
socketOut.close();
sock.close();
}
/**
* 打印二維碼
*
* @param qrData 二維碼的內容
* @throws IOException
*/
protected void qrCode(String qrData) throws IOException {
int moduleSize = 8;
int length = qrData.getBytes(encoding).length;
//打印二維碼矩陣
writer.write(0x1D);// init
writer.write("(k");// adjust height of barcode
writer.write(length + 3); // pl
writer.write(0); // ph
writer.write(49); // cn
writer.write(80); // fn
writer.write(48); //
writer.write(qrData);
writer.write(0x1D);
writer.write("(k");
writer.write(3);
writer.write(0);
writer.write(49);
writer.write(69);
writer.write(48);
writer.write(0x1D);
writer.write("(k");
writer.write(3);
writer.write(0);
writer.write(49);
writer.write(67);
writer.write(moduleSize);
writer.write(0x1D);
writer.write("(k");
writer.write(3); // pl
writer.write(0); // ph
writer.write(49); // cn
writer.write(81); // fn
writer.write(48); // m
writer.flush();
}
/**
* 進紙並全部切割
*
* @return
* @throws IOException
*/
protected void feedAndCut() throws IOException {
writer.write(0x1D);
writer.write(86);
writer.write(65);
// writer.write(0);
//切紙前走紙多少
writer.write(100);
writer.flush();
//另外一種切紙的方式
// byte[] bytes = {29, 86, 0};
// socketOut.write(bytes);
}
/**
* 打印換行
*
* @return length 需要打印的空行數
* @throws IOException
*/
protected void printLine(int lineNum) throws IOException {
for (int i = 0; i < lineNum; i++) {
writer.write("\n");
}
writer.flush();
}
/**
* 打印換行(只換一行)
*
* @throws IOException
*/
protected void printLine() throws IOException {
writer.write("\n");
writer.flush();
}
/**
* 打印空白(一個Tab的位置,約4個漢字)
*
* @param length 需要打印空白的長度,
* @throws IOException
*/
protected void printTabSpace(int length) throws IOException {
for (int i = 0; i < length; i++) {
writer.write("\t");
}
writer.flush();
}
/**
* 打印空白(一個漢字的位置)
*
* @param length 需要打印空白的長度,
* @throws IOException
*/
protected void printWordSpace(int length) throws IOException {
for (int i = 0; i < length; i++) {
writer.write(" ");
}
writer.flush();
}
/**
* 打印位置調整
*
* @param position 打印位置 0:居左(默認) 1:居中 2:居右
* @throws IOException
*/
protected void printLocation(int position) throws IOException {
writer.write(0x1B);
writer.write(97);
writer.write(position);
writer.flush();
}
/**
* 絕對打印位置
*
* @throws IOException
*/
protected void printLocation(int light, int weight) throws IOException {
writer.write(0x1B);
writer.write(0x24);
writer.write(light);
writer.write(weight);
writer.flush();
}
/**
* 打印文字
*
* @param text
* @throws IOException
*/
protected void printText(String text) throws IOException {
String s = text;
byte[] content = s.getBytes("gbk");
socketOut.write(content);
socketOut.flush();
}
/**
* 新起一行,打印文字
*
* @param text
* @throws IOException
*/
protected void printTextNewLine(String text) throws IOException {
//換行
writer.write("\n");
writer.flush();
String s = text;
byte[] content = s.getBytes("gbk");
socketOut.write(content);
socketOut.flush();
}
/**
* 初始化打印機
*
* @throws IOException
*/
protected void initPos() throws IOException {
writer.write(0x1B);
writer.write(0x40);
writer.flush();
}
/**
* 加粗
*
* @param flag false爲不加粗
* @return
* @throws IOException
*/
protected void bold(boolean flag) throws IOException {
if (flag) {
//常規粗細
writer.write(0x1B);
writer.write(69);
writer.write(0xF);
writer.flush();
} else {
//加粗
writer.write(0x1B);
writer.write(69);
writer.write(0);
writer.flush();
}
}
}
其中,打印機的IP和端口號從打印機的屬性設置處可查。MainActivity中進行調用:
package com.example.haoguibao.myapplication;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import java.io.IOException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
//訂單菜品集合
private List<FoodsBean> foodsBean;
private Pos pos;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button bt_print = (Button) findViewById(R.id.button);
bt_print.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// 開啓一個子線程
new Thread() {
public void run() {
try {
pos = new Pos("IP", 9100, "GBK"); //第一個參數是打印機網口IP
//初始化打印機
pos.initPos();
//初始化訂單數據
initData();
pos.bold(true);
pos.printTabSpace(2);
pos.printWordSpace(1);
pos.printText("**測試店鋪");
pos.printLocation(0);
pos.printTextNewLine("----------------------------------------------");
pos.bold(false);
pos.printTextNewLine("訂 單 號:1005199");
pos.printTextNewLine("用 戶 名:15712937281");
pos.printTextNewLine("桌 號:3號桌");
pos.printTextNewLine("訂單狀態:訂單已確認");
pos.printTextNewLine("訂單日期:2016/2/19 12:34:53");
pos.printTextNewLine("付 款 人:線下支付(服務員:寶哥)");
pos.printTextNewLine("服 務 員:1001");
pos.printTextNewLine("訂單備註:不要辣,少鹽");
pos.printLine(2);
pos.printText("品項");
pos.printLocation(20, 1);
pos.printText("單價");
pos.printLocation(99, 1);
pos.printWordSpace(1);
pos.printText("數量");
pos.printWordSpace(3);
pos.printText("小計");
pos.printTextNewLine("----------------------------------------------");
for (FoodsBean foods : foodsBean) {
pos.printTextNewLine(foods.getName());
pos.printLocation(20, 1);
pos.printText(foods.getPrice());
pos.printLocation(99, 1);
pos.printWordSpace(1);
pos.printText(foods.getNumber());
pos.printWordSpace(3);
pos.printText(foods.getSum());
}
pos.printTextNewLine("----------------------------------------------");
pos.printLocation(1);
pos.printLine(2);
//打印二維碼
pos.qrCode("http://blog.csdn.net/haovip123");
//切紙
pos.feedAndCut();
pos.closeIOAndSocket();
pos = null;
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}.start();
}
});
}
private void initData() {
foodsBean = new ArrayList<>();
for (int i = 0; i < 4; i++) {
FoodsBean fb = new FoodsBean();
fb.setName("測試菜品" + i);
fb.setPrice("90.00");
fb.setNumber("1" + i);
fb.setSum("10" + i + ".00");
foodsBean.add(fb);
}
}
}
附:小票中菜品的Bean類
public class FoodsBean {
private String name;
private String price;
private String number;
private String sum;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPrice() {
return price;
}
public void setPrice(String price) {
this.price = price;
}
public String getNumber() {
return number;
}
public void setNumber(String number) {
this.number = number;
}
public String getSum() {
return sum;
}
public void setSum(String sum) {
this.sum = sum;
}
}
打印小票樣品如圖:
小結:
對於調用打印機,不論使用Java語言還是其他語言,思路都是一樣的,利用Socket連接上打印機以後,通過IO流進行輸出打印,它們的打印指令都是一樣的,可以下載打印手冊,針對不同的設置,使用不同的打印指令即可。
某打印指令文檔,僅供參考 : http://download.csdn.net/detail/haovip123/9702573
吐槽一下,資源下載積分,不是我設置的,csdn什麼積分計算算法給運算出來的,我都沒有權限更改,無語...