parent
085bd6047e
commit
ca3e099b55
@ -0,0 +1,198 @@
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package com.example.drink_order_system;
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import android.content.Context;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.LineNumberReader;
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import java.io.Reader;
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import java.nio.charset.StandardCharsets;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Locale;
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public class Account {
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private final String username;
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private final String password;
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private final Context mContext;
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Account(String username, String password, Context mContext) {
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this.username = username;
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this.password = password;
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this.mContext = mContext;
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}
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Account(String username) {
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this.username = username;
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this.password = "";
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mContext = null;
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}
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Account(String username, Context mContext) {
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this.username = username;
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this.password = null;
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this.mContext = mContext;
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}
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Account(String username, String password) {
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this.username = username;
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this.password = password;
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mContext = null;
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}
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@Override
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public boolean equals(Object obj)
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{
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if(obj == this)
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{
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return true;
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}
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if(obj == null)
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{
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return false;
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}
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if(obj instanceof Account)
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{
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Account a = (Account) obj;
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return this.username.equals(a.username) && this.password.equals(a.password);
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}
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System.out.println("notInstance");
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return false;
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}
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private int getTotalLines() throws IOException {
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FileInputStream fis = mContext.openFileInput(username+"bill.txt");
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Reader in = new InputStreamReader(fis, StandardCharsets.UTF_8);
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LineNumberReader reader = new LineNumberReader(in);
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String s = reader.readLine();
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int lines = 0;
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while (s != null) {
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lines++;
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s = reader.readLine();
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}
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reader.close();
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in.close();
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return lines;
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}
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static String readAppointedLineNumber(File sourceFile, int lineNumber){
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if(lineNumber < 0)
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{
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return "NotFound";
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}
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try {
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FileReader in = new FileReader(sourceFile);
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LineNumberReader reader = new LineNumberReader(in);
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String s;
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int i ;
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while (reader.readLine() != null) {
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i = reader.getLineNumber();
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if (i == lineNumber) {
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s = reader.readLine();
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System.out.println(s);
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return s;
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}
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}
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reader.close();
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in.close();
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return "NotFound";
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}
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catch (IOException e)
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{
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return "NotFound";
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}
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}
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public boolean exist()
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{
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try
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{
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FileOutputStream fos1;
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FileInputStream fis;
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if(mContext != null) {
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fos1 = mContext.openFileOutput("user_info.txt", mContext.MODE_APPEND);
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fis = mContext.openFileInput("user_info.txt");
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Reader in = new InputStreamReader(fis, StandardCharsets.UTF_8);
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LineNumberReader reader = new LineNumberReader(in);
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String s;
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while ((s = reader.readLine()) != null) {
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System.out.println(s);
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System.out.println(username + " " + password);
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String[] list = s.split(",");
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System.out.println(list[0] + "?" + list[1]);
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Account temp = new Account(list[0], list[1]);
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System.out.println(temp.username.toLowerCase(Locale.ROOT).equals(this.username.toLowerCase(Locale.ROOT)) + " " + temp.password.equals(this.password));
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if (temp.equals(this)) {
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//System.out.println(s);
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return true;
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}
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}
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reader.close();
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in.close();
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}
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}
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catch (IOException e)
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{
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return false;
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}
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return false;
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}
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public boolean saveAccount() {
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try {
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FileInputStream fis;
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FileOutputStream fos;
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if(mContext != null) {
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fos = mContext.openFileOutput("user_info.txt", mContext.MODE_APPEND);
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fis = mContext.openFileInput("user_info.txt");
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Reader in = new InputStreamReader(fis, StandardCharsets.UTF_8);
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LineNumberReader reader = new LineNumberReader(in);
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String s;
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while ((s = reader.readLine()) != null) {
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System.out.println(s);
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String[] list = s.split(",");
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if ((list[0]).equalsIgnoreCase(username)) {
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System.out.println("equal");
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reader.close();
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in.close();
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reader.close();
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in.close();
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return false;
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}
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}
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reader.close();
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in.close();
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fos = mContext.openFileOutput("user_info.txt", mContext.MODE_APPEND);
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String info = username + "," + password + "\n";
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fos.write(info.getBytes(StandardCharsets.UTF_8));
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fos = mContext.openFileOutput(username+"bill.txt", mContext.MODE_APPEND);
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}
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} catch (IOException e) {
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e.printStackTrace();
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System.out.println("read error");
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}
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return true;
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}
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public Date saveBill(String takeAway, String cost)
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{
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Date date = new Date(System.currentTimeMillis());
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try {
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FileOutputStream fos = mContext.openFileOutput(username + "bill.txt", mContext.MODE_APPEND);
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SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");// HH:mm:ss
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SimpleDateFormat billDateFormat = new SimpleDateFormat("yyyyMMddHHmmss");// HH:mm:ss
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//获取当前时间
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String orderNumber = billDateFormat.format(date);
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String info = orderNumber + "," + simpleDateFormat.format(date) + "," + takeAway + "," + cost + "\n";
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System.out.println(info);
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fos.write(info.getBytes(StandardCharsets.UTF_8));
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}catch (IOException e)
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{
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e.printStackTrace();
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System.out.println("write error");
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}
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return date;
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}
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}
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