文章目录
【Android】Android 集成佳博80打印机打印票据
1、集成佳博80打印机依赖
相关依赖在佳博的技术支持下载，然后导入到项目即可
implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.7'
compile files('libs/gprintersdkv1.jar')
2、规范调用接口
个人习惯，先写接口，再写功能实现类
import java.util.List;
/**
* 佳博网口打印机
*
* @author Tellsea
* @date 2021-8-11
*/
public interface NetworkPrintingService {
/**
* 制作单
*
* @param param
*/
void makeFoodOrderPrinting(String param);
}
实现接口
import android.webkit.JavascriptInterface;
import android.widget.Toast;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import com.gprinter.command.EscCommand;
import com.gprinter.io.EthernetPort;
import com.zhhy.spotorder.app.cashier.MainActivity;
import com.zhhy.spotorder.app.cashier.entity.BizStoreNetwork;
import com.zhhy.spotorder.app.cashier.entity.OrderPrinting;
import com.zhhy.spotorder.app.cashier.entity.OrderPrintingDetail;
import com.zhhy.spotorder.app.cashier.service.NetworkPrintingService;
import com.zhhy.spotorder.app.cashier.utils.IntegerUtils;
import org.apache.commons.lang3.StringUtils;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Vector;
/**
* 佳博网口打印机
*
* @author Tellsea
* @date 2021-8-11
*/
public class NetworkPrintingServiceImpl implements NetworkPrintingService {
private static Map<String, EthernetPort> ethernetPortMap = new HashMap<>();
/**
* 制作单
*
* @param param
*/
@Override
@JavascriptInterface
public void makeFoodOrderPrinting(String param) {
System.out.println("制作单参数：" + param);
if (param.isEmpty()) {
Toast.makeText(MainActivity.CONTEXT, "打印参数不能为空", Toast.LENGTH_LONG).show();
return;
}
Map<String, String> paramMap = new Gson().fromJson(param, new TypeToken<Map<String, String>>() {
}.getType());
for (Map.Entry<String, String> entry : paramMap.entrySet()) {
BizStoreNetwork storeNetwork = new Gson().fromJson(entry.getKey(), BizStoreNetwork.class);
OrderPrinting entity = new Gson().fromJson(entry.getValue(), OrderPrinting.class);
if (entity.getOrderDetailList().isEmpty()) {
Toast.makeText(MainActivity.CONTEXT, "佳博打印机：商品为空", Toast.LENGTH_LONG).show();
continue;
}
EthernetPort ethernetPort = ethernetPortConn(storeNetwork.getPrinterIp(), storeNetwork.getPrinterPort());
if (ethernetPort == null) {
continue;
}
EscCommand esc = new EscCommand();
esc.addInitializePrinter();
// 大文字
esc.addSetKanjiFontMode(EscCommand.ENABLE.ON, EscCommand.ENABLE.ON, EscCommand.ENABLE.OFF);
// 大数字
esc.addSelectPrintModes(EscCommand.FONT.FONTA, EscCommand.ENABLE.OFF, EscCommand.ENABLE.ON, EscCommand.ENABLE.ON, EscCommand.ENABLE.OFF);
esc.addSelectJustification(EscCommand.JUSTIFICATION.CENTER);
esc.addText("制作单 " + entity.getTakeOrderNumber() + "\n");
esc.addText(entity.getStoreName() + "\n");
esc.addPrintAndLineFeed();
esc.addSelectJustification(EscCommand.JUSTIFICATION.LEFT);
esc.addText("------------------------\n");
esc.addText("桌台号：" + entity.getDeskName() + "\n");
esc.addText("桌台类型：" + entity.getDeskType() + "\n");
esc.addText("订单号：\n");
esc.addText(entity.getOrderNumber() + "\n");
esc.addText("------------------------\n");
esc.addPrintAndLineFeed();
esc.addText("菜名");
esc.addSetHorAndVerMotionUnits((byte) 7, (byte) 0);
esc.addSetAbsolutePrintPosition((short) 13);
esc.addText("数量");
esc.addSetHorAndVerMotionUnits((byte) 10, (byte) 0);
esc.addSetAbsolutePrintPosition((short) 26);
esc.addText("单价");
esc.addPrintAndLineFeed();
esc.addText("------------------------\n");
for (OrderPrintingDetail item : entity.getOrderDetailList()) {
esc.addText(item.getSpuTitle());
esc.addSetHorAndVerMotionUnits((byte) 7, (byte) 0);
esc.addSetAbsolutePrintPosition((short) 13);
esc.addText(String.valueOf(item.getNumber()));
esc.addSetHorAndVerMotionUnits((byte) 10, (byte) 0);
esc.addSetAbsolutePrintPosition((short) 26);
esc.addText(String.valueOf(item.getSpuSellPrice()));
esc.addPrintAndLineFeed();
String content = "";
if (IntegerUtils.eq(item.getSpuAttrType(), 2) && StringUtils.isNotEmpty(item.getSpuDescription())) {
content += item.getSpuDescription();
}
if (StringUtils.isNotEmpty(item.getSpuRemark())) {
if (StringUtils.isEmpty(content)) {
content += "，";
}
content += item.getSpuRemark();
}
if (StringUtils.isNotEmpty(content)) {
esc.addText(content);
esc.addPrintAndLineFeed();
}
}
esc.addText("------------------------\n");
esc.addText("总计：" + entity.getPayMoney() + "\n");
esc.addText("------------------------\n");
esc.addPrintAndFeedLines((byte) 6);
esc.addCutPaper();
Vector<Byte> data = esc.getCommand();
try {
ethernetPort.writeDataImmediately(data);
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* 以太网连接
*
* @param ip 连接 wifi 的 ip 地址
* @param port 连接 wifi 的端口号
*/
public EthernetPort ethernetPortConn(String ip, int port) {
if (ethernetPortMap.get(ip) == null) {
// 第一次连接
EthernetPort ethernetPort = new EthernetPort(ip, port);
if (ethernetPort.openPort()) {
Toast.makeText(MainActivity.CONTEXT, "以太网连接打印机成功", Toast.LENGTH_SHORT).show();
ethernetPortMap.put(ip, ethernetPort);
return ethernetPort;
}
Toast.makeText(MainActivity.CONTEXT, "以太网连接打印机失败：IP：" + ip + "，端口：" + port, Toast.LENGTH_SHORT).show();
return null;
}
// 已经连接成功
if (ethernetPortMap.containsKey(ip)) {
return ethernetPortMap.get(ip);
}
ethernetPortMap.remove(ip);
Toast.makeText(MainActivity.CONTEXT, "以太网连接打印机失败：IP：" + ip + "，端口：" + port, Toast.LENGTH_SHORT).show();
return null;
}
}
3、使用到的相关对象以及工具类
订单对象
/**
* 预结账单
*
* @author Tellsea
* @date 2021/07/22
*/
@Data
@Accessors(chain = true)
public class OrderPrinting {
private Long id;
private String storeName;
private String takeOrderNumber;
private String deskName;
private String deskType;
private String orderNumber;
private String serialNumber;
private List<OrderPrintingDetail> orderDetailList;
private BigDecimal originPrice;
private BigDecimal reducePrice;
private BigDecimal integerPrice;
private String payWayName;
private BigDecimal payMoney;
private String placeOrderTime;
private String payTime;
private String orderRemark;
}
订单商品对象
/**
* 商品信息
*
* @author Tellsea
* @date 2021/07/22
*/
@Data
@NoArgsConstructor
@AllArgsConstructor
@Accessors(chain = true)
public class OrderPrintingDetail {
private Long spuAttrType;
private String spuTitle;
private String spuDescription;
private BigDecimal number;
private BigDecimal spuSellPrice;
private String spuRemark;
}
打印机参数
import lombok.Data;
import lombok.experimental.Accessors;
/**
* 网口打印机
*
* @author Tellsea
* @date 2021-8-11
*/
@Data
@Accessors(chain = true)
public class BizStoreNetwork {
/**
* 打印机IP
*/
private String printerIp;
/**
* 打印机端口
*/
private int printerPort;
/**
* 连接允许超时时间
*/
private int timeout = 1000;
}
使用到的比较工具类
/**
* Integer 类型工具类
* 原符号 < <= > >= <>
* 对应函数 lt() le() gt() ge() ne()
*
* @author Tellsea
* @date 2021/04/12
*/
public class IntegerUtils {
/**
* 等于
*
* @param val1
* @param val2
* @return
*/
public static boolean eq(Integer val1, Integer val2) {
if (val1 != null && val2 != null) {
return val1.intValue() == val2.intValue();
}
return false;
}
public static boolean eq(Long val1, Integer val2) {
if (val1 != null && val2 != null) {
return val1.intValue() == val2.intValue();
}
return false;
}
/**
* 大于
*
* @param val1
* @param val2
* @return
*/
public static boolean gt(Integer val1, Integer val2) {
if (val1 != null && val2 != null) {
return val1.intValue() > val2.intValue();
}
return false;
}
public static boolean gt(Long val1, Integer val2) {
if (val1 != null && val2 != null) {
return val1.intValue() > val2.intValue();
}
return false;
}
/**
* 小于
*
* @param val1
* @param val2
* @return
*/
public static boolean lt(Integer val1, Integer val2) {
if (val1 != null && val2 != null) {
return val1.intValue() < val2.intValue();
}
return false;
}
/**
* 大于等于
*
* @param val1
* @param val2
* @return
*/
public static boolean ge(Integer val1, Integer val2) {
if (val1 != null && val2 != null) {
return (val1.intValue() > val2.intValue()) || (val1.intValue() == val2.intValue());
}
return false;
}
/**
* 小于等于
*
* @param val1
* @param val2
* @return
*/
public static boolean le(Integer val1, Integer val2) {
if (val1 != null && val2 != null) {
return (val1.intValue() < val2.intValue()) || (val1.intValue() == val2.intValue());
}
return false;
}
/**
* 不等于
*
* @param val1
* @param val2
* @return
*/
public static boolean ne(Integer val1, Integer val2) {
if (val1 != null && val2 != null) {
return val1.intValue() != val2.intValue();
}
return false;
}
}
4、MainActivity初始化接口
// 佳博打印机初始化
NetworkPrintingService networkPrintingService = new NetworkPrintingServiceImpl();
5、Uniapp调用方法
在接口方法已经使用了@JavascriptInterface注解，可以使用JavaScript直接调用
/**
* 制作单
*/
function makeFoodNetwork(param) {
window.networkPrinting.makeFoodOrderPrinting(param);
}
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