Android連接網絡打印機進行打印

首先這是網絡打印工具類，通過Socket實現，多說一句，網絡打印機端口號一般默認的是9100

package com.Ieasy.Tool;

import android.annotation.SuppressLint;
import java.io.IOException ;
import java.io.OutputStream ;
import java.io.PrintWriter ;
import java.net.InetSocketAddress ;
import java.net.Socket ;
import java.net.SocketAddress ;
import java.nio.charset.Charset ;

@SuppressLint("NewApi")
public class NetPrinter
{
    public Socket socket;

    public int POS_OPEN_NETPORT = 9100;// 0X238c
    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; //傳輸的命令集

    PrinterCMD pcmd = new PrinterCMD();
    
    /// <summary>
    /// 網絡打印機 打開網絡打印機 
    /// </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;
                //System.out.print("連接成功");
            }
            catch(Exception e)
            {
                //MessageBox.Show("連接不成功");
                e.printStackTrace();
                IFOpen = false;
            }
        }
        else
        {
            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>
    /// 網絡打印機 關閉
    /// </summary>
    /// <param name="ipaddress"></param>
    /// <returns></returns>
    public void Close()
    {
        try
        {
            socket.close();
            socket = null;
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    
    /// <summary>
    /// 網絡打印機 初始化打印機
    /// </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>
    /// 網絡打印機 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">字體大小0:正常大小 1:兩倍高 2:兩倍寬 3:兩倍大小 4:三倍高 5:三倍寬 6:三倍大小 7:四倍高 8:四倍寬 9:四倍大小 10:五倍高 11:五倍寬 12:五倍大小</param>
    /// <param name="ifzhenda">0:非針打  1:針打</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>
    /// 網絡打印機 回車
    /// </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>
    /// 網絡打印機 切割
    /// </summary>
    /// <param name="pagenum">切割時，走紙行數</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>
    /// 網絡打印機換行
    /// </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>
    /// 打開錢箱
    /// </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>
    /// 打印條碼
    /// </summary>
    /// <param name="numstr"></param>
    /// <param name="height"></param>
    /// <param name="width"></param>
    /// <param name="numweizi">1:上方  2:下方  0:不打印數字</param>
    /// <param name="fontalign">0:居左 1:居中 2:居右</param>
    /// <param name="fontsize">字體大小0:正常大小 1:兩倍高 2:兩倍寬 3:兩倍大小 4:三倍高 5:三倍寬 6:三倍大小 7:四倍高 8:四倍寬 9:四倍大小 10:五倍高 11:五倍寬 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>
    /// 初始化打印機
    /// </summary>
    /// <returns></returns>
    public String CMD_SetPos()
    {
        return new StringBuffer().append((char)27).append((char)64).toString();
    }

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

    /// <summary>
    /// 對齊模式
    /// </summary>
    /// <param name="align">0:左對齊 1:中對齊 2:右對齊</param>
    /// <returns></returns>
    public String CMD_TextAlign(int align)
    {
        return new StringBuffer().append((char)27).append((char)97).append((char)align).toString();
    }

    /// <summary>
    /// 字體的大小
    /// </summary>
    /// <param name="nfontsize">0:正常大小 1:兩倍高 2:兩倍寬 3:兩倍大小 4:三倍高 5:三倍寬 6:三倍大小 7:四倍高 8:四倍寬 9:四倍大小 10:五倍高 11:五倍寬 12:五倍大小</param>
    /// <returns></returns>
    public String CMD_FontSize(int nfontsize)
    {
        String _cmdstr = "";

        //設置字體大小
        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(針打) 倍寬倍高
    /// </summary>
    /// <param name="size">0:取消倍寬倍高模式  1:倍高模式 2:倍寬模式 3:兩倍大小</param>
    /// <returns></returns>
    public String CMD_FontSize_BTP_M280(int size)
    {
        String _cmdstr = "";
        //只有0和1兩種模式
        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(針打) 倍寬倍高
    /// </summary>
    /// <param name="size">0:取消倍寬倍高模式  1:倍高模式 2:倍寬模式 3:兩倍大小</param>
    /// <returns></returns>
    public String CMD_FontSize_BTP_M2801(int size)
    {
        String _cmdstr = "";
        //只有0和1兩種模式
        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>
    /// 走紙
    /// </summary>
    /// <param name="line">走紙的行數</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>
    /// 返回狀態(返回8位的二進制)
    /// </summary>
    /// <param name="num">1:打印機狀態 2:脫機狀態 3:錯誤狀態 4:傳送紙狀態</param>
    /// 返回打印機狀態如下：
    /// 第一位：固定為0
    /// 第二位：固定為1
    /// 第三位：0:一個或兩個錢箱打開  1:兩個錢箱都關閉
    /// 第四位：0:聯機  1:脫機
    /// 第五位：固定為1
    /// 第六位：未定義
    /// 第七位：未定義
    /// 第八位：固定為0
    /// 
    /// 返回脫機狀態如下：
    /// 第一位：固定為0
    /// 第二位：固定為1
    /// 第三位：0:上蓋關  1:上蓋開
    /// 第四位：0:未按走紙鍵  1:按下走紙鍵
    /// 第五位：固定為1
    /// 第六位：0:打印機不缺紙  1: 打印機缺紙
    /// 第七位：0:沒有出錯情況  1:有錯誤情況
    /// 第八位：固定為0
    /// 
    /// 返回錯誤狀態如下：
    /// 第一位：固定為0
    /// 第二位：固定為1
    /// 第三位：未定義
    /// 第四位：0:切刀無錯誤  1:切刀有錯誤
    /// 第五位：固定為1
    /// 第六位：0:無不可恢復錯誤  1: 有不可恢復錯誤
    /// 第七位：0:打印頭溫度和電壓正常  1:打印頭溫度或電壓超出范圍
    /// 第八位：固定為0
    /// 
    /// 返回傳送紙狀態如下：
    /// 第一位：固定為0
    /// 第二位：固定為1
    /// 第三位：0:有紙  1:紙將盡
    /// 第四位：0:有紙  1:紙將盡
    /// 第五位：固定為1
    /// 第六位：0:有紙  1:紙盡
    /// 第七位：0:有紙  1:紙盡
    /// 第八位：固定為0
    /// <returns></returns>
    public String CMD_ReturnStatus(int num)
    {
        return new StringBuffer().append((char)16).append((char)4).append((char)num).toString();
    }

    /// <summary>
    /// 條碼高寬
    /// </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>
    /// 條碼寬度
    /// </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>
    /// 條碼數字打印的位置
    /// </summary>
    /// <param name="num">1:上方  2:下方  0:不打印數字</param>
    /// <returns></returns>
    public String CMD_TiaoMaWeiZi(int num)
    {
        return new StringBuffer().append((char)29).append("H").append((char)num).toString();
    }

    /// <summary>
    /// 開始打印(條碼類型為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>
    /// 打開錢箱
    /// </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();
    }
}

具體怎么調用，每個方法注釋寫得都很清楚了，至於怎么排版，要看紙的寬度了，然后自己計算字符的長度進行設置，下面是一個異步調用的例子，下面方法僅僅是一個例子，請無視其他無用代碼。

頁面排版實現，首先得知道打印紙的寬度，還有你要在紙上顯示幾列，譬如我這個方法 我顯示了4列，所有我先根據打印紙的寬度 先設置好每一列的大致寬度，如果該列的字符長度大於設置好的 可以設置換行，如果小於，為了排版整齊 可以補空格，大致實現原理就是這樣。

  // 粗略計算打印紙上每個字段占的長度
  private int wlname = 18;
  private int wlnum = 6;
  private int wlunit = 7;
  private int wlprice = 9;

 

 

 /**
   * 網絡打印機
   * 
   * 
   */
  class NetPrint extends AsyncTask<String, String, String> {
    private String LocalYHID;
    private List<SaveEnity> ListWz = new ArrayList<SaveEnity>();
    private String Rr = "";
    private String GysName = "";
    private String title = "";
    private String printtime = "";
    private String errInfo = "";
    private String TotlePrice = "";
    private NetPrinter printer;
    private String Md_Name;
    private String Date_Time;

    public NetPrint(String LocalYHID, String GysName,String Date_Time) {
      this.LocalYHID = LocalYHID;
      this.GysName = GysName;
      this.Date_Time = Date_Time;
      isclick = true;
    }

    @Override
    protected String doInBackground(String... params) {
      // TODO Auto-generated method stub
      try {
        printer = new NetPrinter();
        if(!Utils.isEmpty(Const.print_Port)){
          printer.Open(Const.print_IP, Integer.parseInt(Const.print_Port));
        }
        if(printer.IFOpen){
          JSONArray ArrayItems = new JSONArray();
          ArrayItems = usedatabase.getLocalData(LocalYHID);
          TotlePrice = usedatabase.getTotlePrice(LocalYHID);
          ListWz = JSON.parseArray(ArrayItems.toString(), SaveEnity.class);
          MyLogger.showLogWithLineNum(5, ListWz.size() + "長度");
          Collections.sort(ListWz, new SaComParator());

          List<String> Select = new ArrayList<String>();
          List<String> EndSelect = new ArrayList<String>();
          for (int i = 0; i < ListWz.size(); i++) {
            SaveEnity save = ListWz.get(i);
            Select.add(save.DJX_CK_NAME);
          }
          for (String s : Select) {
            if (Collections.frequency(EndSelect, s) < 1) EndSelect.add(s);
          }
          for (int i = 0; i < EndSelect.size(); i++) {
            Rr += formatSSTest(EndSelect.get(i), ListWz);
          }
          String Name = "物料名";
          String Num = "數量";
          String Unit = "單位";
          String Price = "單價";
          String Spc = "";
          for (int j = 0; j < wlname - getWordCount("物料名"); j++) {
            Spc = Spc + " ";
          }
          Log.e("物料名稱長度"+wlname+"補空格", wlname-getWordCount("物料名")+"");
          Name = Name + Spc;
          Spc = "";
          for (int i = 0; i < wlnum - getWordCount("數量"); i++) {
            Spc = Spc + " ";
          }
          Num = Spc + Num;
          Log.e("數量長度"+wlnum+"補空格", wlnum-getWordCount("數量")+"");
          Spc = "";

          for (int i = 0; i < wlunit - getWordCount("單位"); i++) {
            Spc = Spc + " ";
          }
          Unit = Spc + Unit;
          Spc = "";
          Log.e("單位長度"+wlunit+"補空格", wlunit-getWordCount("單位")+"");
          for (int i = 0; i < wlprice - getWordCount("單價"); i++) {
            Spc = Spc + " ";
          }
          Price = Spc + Price;
          Spc = "";
          Log.e("長度"+wlprice+"補空格", wlprice-getWordCount("單價")+"");
          String printstr = Name + Price + Num + Unit;
          title = "供應商: " + GysName + "\n" + printstr;
          printtime = "打印時間:" + Date_Time + "\n\n";
          Md_Name   = Const.MD_Name;

        }  
      } catch (Exception e) {
        e.printStackTrace();
      }
      return null;
    }

    @Override
    protected void onPreExecute() {
      // TODO Auto-generated method stub
      super.onPreExecute();
    }

    @Override
    protected void onPostExecute(String result) {
      // TODO Auto-generated method stub
      super.onPostExecute(result);
      if(printer.IFOpen){
        String[] aaray = Rr.split("#");
        printer.PrintText(title, 0, 0, 0);
        printer.PrintEnter();
        for (String s : aaray) {
          printer.PrintText(s, 0, 0, 0);
        }
        printer.PrintEnter();
        printer.PrintText(TotlePrice, 0, 0, 0);
        printer.PrintEnter();
        printer.PrintEnter();
        printer.PrintText(printtime, 0, 0, 0);
        printer.PrintEnter();
        printer.PrintText(Md_Name, 1,1,0);
        printer.PrintNewLines(5);
        printer.CutPage(0);
        printer.Close();
        isclick = false;
        MyToast.MyLogo(History.this, "打印完成");
      }else{
        MyToast.MyLogo(History.this, "未能連接打印機");
      }
    }
  }