3
我寫了一個撲克模擬器/賠率計算器。在GUI上，有一些JComboBox es用戶可以從中選擇卡。Java選擇：以JAR或Base64序列存儲圖像？
現在，我對那些卡上的圖像，我也有他們在Base64格式。有三種不同的方式我嘗試顯示它們。爲了演示目的，我爲每個程序寫了一個小程序。
以下是我嘗試過的3種方法：
1）。在JAR文件存儲圖像：
非常簡單。圖像進入JAR，Java代碼從那裏讀取它們。在此之後，它創建與他們的JComboBox並將其顯示：
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JComboBox;
import javax.swing.ImageIcon;
public class ImagesFromJAR
{
private JFrame mainframe;
public ImagesFromJAR()
{
ImageIcon[] cardslist = new ImageIcon[52];
for (int i = 0; i < 52; ++i)
{
cardslist[i] = new ImageIcon (getClass(). getResource ((this.getImagePath (i))));
}
JComboBox cardsbox = new JComboBox (cardslist);
cardsbox.setSelectedIndex (0);
cardsbox.setEditable (false);
this.mainframe = new JFrame();
this.mainframe.setDefaultCloseOperation (JFrame.DISPOSE_ON_CLOSE);
this.mainframe.setSize (150, 150);
this.mainframe.setLayout (null);
cardsbox.setBounds (20, 20, 55, 45);
this.mainframe.add (cardsbox);
this.mainframe.setVisible (true);
}
private String getImagePath (int index)
{
switch (index)
{
case 0: return "images/2c.gif";
case 1: return "images/3c.gif";
case 2: return "images/4c.gif";
case 3: return "images/5c.gif";
case 4: return "images/6c.gif";
case 5: return "images/7c.gif";
case 6: return "images/8c.gif";
case 7: return "images/9c.gif";
case 8: return "images/Tc.gif";
case 9: return "images/Jc.gif";
case 10: return "images/Qc.gif";
case 11: return "images/Kc.gif";
case 12: return "images/Ac.gif";
case 13: return "images/2d.gif";
case 14: return "images/3d.gif";
case 15: return "images/4d.gif";
......................................
default: return null;
}
}
public static void main (String[] args)
{
javax.swing.SwingUtilities.invokeLater (new Runnable()
{
public void run()
{
ImagesFromJAR t = new ImagesFromJAR();
}
});
}
}
2）。存儲Base64格式圖像在一個文本文件：
我Base64格式轉換的每個圖像，然後存儲在一個文本文件中。 Java代碼讀取該文件並通過解碼文件中的行來重新創建圖像。在此之後，創建一個JComboBox並顯示：
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JComboBox;
import javax.swing.ImageIcon;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.FileInputStream;
import java.io.IOException;
public class CodeFromFile
{
private JFrame mainframe;
public CodeFromFile()
{
ImageIcon[] cardslist = new ImageIcon[52];
InputStreamReader in = null;
BufferedReader buff;
int index = -1;
try
{
in = new InputStreamReader (new FileInputStream ("card.encodings.txt"));
buff = new BufferedReader (in);
String line;
byte[] ba;
while ((line = buff.readLine()) != null)
{
if (line.length() < 10)
{
continue;
}
index++;
ba = Base64.decode (line);
cardslist[index] = new ImageIcon (ba);
}
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{
if (in != null)
{
try
{
in.close();
}
catch (IOException e2) {}
}
}
JComboBox cardsbox = new JComboBox (cardslist);
cardsbox.setSelectedIndex (0);
cardsbox.setEditable (false);
this.mainframe = new JFrame();
this.mainframe.setDefaultCloseOperation (JFrame.DISPOSE_ON_CLOSE);
this.mainframe.setSize (150, 150);
this.mainframe.setLayout (null);
cardsbox.setBounds (20, 20, 55, 45);
this.mainframe.add (cardsbox);
this.mainframe.setVisible (true);
}
public static void main (String[] args)
{
javax.swing.SwingUtilities.invokeLater (new Runnable()
{
public void run()
{
CodeFromFile t = new CodeFromFile();
}
});
}
}
的card.encodings.txt的內容是這樣的：
2c:
R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXKIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaMQN9DEhgN5MBBA5OtzIHtgEGAJ9qpwLEvjsDAImtsTcIkMo3Ag4DmUAMztSbaajQMAmfCdig4aInDt3pfuyvQTXwMyt19ikiIQA7
3c:
R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXMIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaMowMA5k7B2kEDg22OJ+DT62xNwtbYDsDC5C9OAYkD6Wgw7JFSMKnzp9qqg/aq8gAidc3BQB3j3/jNgINJA3e26+tNfIzK3X4KSIhADs=
4c:
R0lGODlhHgAmALMAAAAAAP///+7u7szMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///yH5BAEAAA8ALAAAAAAeACYAAATC8D1Aq734yhm6/2AIApxonh6FrqLKvp2LGg7ADKtsGpYjoDrR4nIAAlY1i8K4ahCZogSgobhUHYbWMYTIYAqhYCfprSTCWxC5MrycR+nP4YIwtCsEtGk+NQgWAXwMYHosVUU5cSIIdwqIJmIeXV6EhTAskZeWmieZnCmKJwkMmKEiBTalLAINDaSJLAkHDK9QJwWAtKonAgw/urAnCnkBwLYhBm/FtZ2mHQwZCMcoxs0w1ZDOIdhan0Al3iMbZeQZEhEAOw==
5c:
R0lGODlhHgAmALMAAAAAAP///+7u7szMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///yH5BAEAAA8ALAAAAAAeACYAAATA8D1Aq734yhm6/2AIApxonh6FrqLKvp2LGg7ADKtsGpYjoDrR4nIAAlY1i8K4ahCZogSgobhUHYbWMYTIYAqhYCfprSTCWxC5MrycR+nP4YIwtCsEtGk+NQgWAXwMYHosVUU5cSIIdwqIJmIeXV6EhTAskZeWmieZnCmKJgwVS52hIQQWWaaGj4krAwAOCD+vKFIUDpWQpyEHQz5QL12umywMpbyaCAjCLzfOizgBjrYnbQu7yp+dJdwjG2XiGRIRADs=
..它繼續爲每個圖像/卡。 3）。第三種方法是直接在源代碼中將圖像存儲爲Base64 String。就像這樣：
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JComboBox;
import javax.swing.ImageIcon;
public class CodeFromSource
{
private JFrame mainframe;
public CodeFromSource()
{
ImageIcon[] cardslist = new ImageIcon[52];
byte[] ba;
for (int i = 0; i < 52; ++i)
{
ba = Base64.decode (this.getImageCode (i));
cardslist[i] = new ImageIcon (ba);
}
JComboBox cardsbox = new JComboBox (cardslist);
cardsbox.setSelectedIndex (0);
cardsbox.setEditable (false);
this.mainframe = new JFrame();
this.mainframe.setDefaultCloseOperation (JFrame.DISPOSE_ON_CLOSE);
this.mainframe.setSize (150, 150);
this.mainframe.setLayout (null);
cardsbox.setBounds (20, 20, 55, 45);
this.mainframe.add (cardsbox);
this.mainframe.setVisible (true);
}
private String getImageCode (int index)
{
switch (index)
{
case 0: return "R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXKIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaMQN9DEhgN5MBBA5OtzIHtgEGAJ9qpwLEvjsDAImtsTcIkMo3Ag4DmUAMztSbaajQMAmfCdig4aInDt3pfuyvQTXwMyt19ikiIQA7";
case 1: return "R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXMIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaMowMA5k7B2kEDg22OJ+DT62xNwtbYDsDC5C9OAYkD6Wgw7JFSMKnzp9qqg/aq8gAidc3BQB3j3/jNgINJA3e26+tNfIzK3X4KSIhADs=";
case 2: return "R0lGODlhHgAmALMAAAAAAP///+7u7szMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///yH5BAEAAA8ALAAAAAAeACYAAATC8D1Aq734yhm6/2AIApxonh6FrqLKvp2LGg7ADKtsGpYjoDrR4nIAAlY1i8K4ahCZogSgobhUHYbWMYTIYAqhYCfprSTCWxC5MrycR+nP4YIwtCsEtGk+NQgWAXwMYHosVUU5cSIIdwqIJmIeXV6EhTAskZeWmieZnCmKJwkMmKEiBTalLAINDaSJLAkHDK9QJwWAtKonAgw/urAnCnkBwLYhBm/FtZ2mHQwZCMcoxs0w1ZDOIdhan0Al3iMbZeQZEhEAOw==";
case 3: return "R0lGODlhHgAmALMAAAAAAP///+7u7szMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///yH5BAEAAA8ALAAAAAAeACYAAATA8D1Aq734yhm6/2AIApxonh6FrqLKvp2LGg7ADKtsGpYjoDrR4nIAAlY1i8K4ahCZogSgobhUHYbWMYTIYAqhYCfprSTCWxC5MrycR+nP4YIwtCsEtGk+NQgWAXwMYHosVUU5cSIIdwqIJmIeXV6EhTAskZeWmieZnCmKJgwVS52hIQQWWaaGj4krAwAOCD+vKFIUDpWQpyEHQz5QL12umywMpbyaCAjCLzfOizgBjrYnbQu7yp+dJdwjG2XiGRIRADs=";
case 4: return "R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXZIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaNwNiAE+gsTJMDKW3PExpqLgvAw+fmTsLD6MMtr04DwxITA1gNgQAn2KJztbYLky8gDgD3i0GANtqOw0O3w/VNgUAdwQOwNw3Bl5ox6+tNf5mrKhDMIWIEAA7";
case 5: return "R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXGIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaMUwniaCxMIckD2A2j08tCX+2OAO/LQ61w0AFDpmnCgnOQA5IvDsGDai3YZ+t2zEPA9o/hj+uLwtp46+tNewzK3XyKSIhADs=";
case 6: return "R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXYIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaMowPn6CxMG1wBLRgNw4NLguQrbcvDE4tDAm9S0YDCMPEPIxbmTwGC161ajsGDskA24BdfwHHzDECAOUID+gxCw9wAg3l3DtiJOLjr601/TNW1BmYQkQIADs=";
case 7: return "R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXZIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaMghFk5k7CA4DAWJIrbF6aS0OkL44BQClbbqgvy4GyC6DvWrGAH+RANOrMg3QBAwPYDePJLhbxUAGD8vMQAQOn+07A23B4jICJArs969xNf5mrKhDMIWIEAA7";
case 8: return "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";
case 9: return "R0lGODlhHgAmALMAAAAAAP///+7u7szMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///yH5BAEAAA8ALAAAAAAeACYAAAS38D1Aq734yhm6/2AIApxonh6FrqLKvp2LGg7ADKtsGpYjoDrR4nIAAlY1i8K4ahCZogSgobhUHYbWMYTIYAqhYCfprSTCWxC5MrycR+nP4YIwtCsEtGk+NQgWAXwMYHosVUU5cSIIdwqIJmIeXV6EhTAskZeWmieZnCmKIQM9iS9deaUsczipK6uYoSKvrSizUK4ArLe1ubAvtp2xIQcOL54BVQQIb7TDFEvGwp8xJdMjG2XZGRIRADs=";
case 10: return "R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXvIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemNgRlJAtIN6ktg38Cl7KaL0wJMGWlgDcOTjAEY6C6LQVGMl6Jq4IAWzENAMA5yZHSMtXXQdkGzDHOajdFAzADx+WLAH8uYmnsNmXTtwC9yDsHXiQN8vp4MPoUkAeBKQwAQttBIIEXbwFoZFMVZEWdiylEhAAAOw==";
case 11: return "R0lGODlhHgAmAMQAAAAAAP///+7u7t3d3czMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABAALAAAAAAeACYAAAXgIAQBZGme6CmOQeu+cAwDrGzfLonvss7/LR/u8AA0CDuh7WB6CHBKGeOEgAJ2RdPCunNQuTIFwLE4lR+H3jWWSKEMsWgr6y4p4msYvTQ93Wd5LwgnCQd9JQV4NoNjBwIMAYwNcIo8ZVVJgTIJhwuYNnIubW6UlUA8oaemqjeprDmaLmUlcA0lDaCxLgMAkC4Nk626LQIAWy0IvsI3xccKCajDAc2PadHMRmRArsUMU8pgMs0BUw0DmdjHgw5IyzbjLUwA7Wo3vOBl4IA2syRwoyQe1HvVqgbBGSvqKEwhIgQAOw==";
case 12: return "R0lGODlhHgAmALMAAAAAAP///+7u7szMzLu7u6qqqpmZmYiIiHd3d2ZmZlVVVURERDMzMyIiIhEREf///yH5BAEAAA8ALAAAAAAeACYAAATR8D1Aq734yhm6/2AIApxonh6FrqLKvp2LGg7ADKtsGpYjoDrR4nIAAlY1i8K4ahCZogSgobhUHYbWMYTIYAqhYCfprSTCWxC5MrycR+nP4YIwtCsEtGk+NQgWAXwMYHosVUU5cSIIdwqIJmIeXV6EhTAskZeWmieZnCmKJgMAeYkvVW9QKAIODD6mKwcIc4+QoSENA6wMsCcFgAFVOJ23H4MdBQAIqiKjFw3MIQm1XZWbIKw/HqNLticL3cYAtR+ZSQ4fZLzXnyMl7e4SZfMZEhEAOw==";
case 13: return "R0lGODlhHgAmAMQAAAAAAP////8AAP8REf8iIv8zM/9ERP9VVf9mZv93d/+IiP+Zmf+qqv+7u//MzP/d3f/u7v///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAABEALAAAAAAeACYAAAW/YBQBZGme6CmOQeu+cAwDrGzfLonvss4HiJ9vtxAkeMMbhCAQNHZJm6EpIEBw0ZiC2gzesq8Gl7r4ApTMcfPZO9sOairBBm4t40662yZWK8w7W1wGWHs3U01WhTx3eYs8DAJejzwJV1CGP5iamnWcM5kxD4gGDps4BQwBDgQDl3o4C6YtkX+AmhACtrCaD468PwqElDtLD6c8BmzENwllSKExCbsJx8A2CWNzt9hqk22f0OFQNeMxNCIp6uskIiEAOw==";
.........
default: return null;
}
}
public static void main (String[] args)
{
javax.swing.SwingUtilities.invokeLater (new Runnable()
{
public void run()
{
CodeFromSource t = new CodeFromSource();
}
});
}
}
（我不得不刪除一些開關的情況下，因爲有一個30K的字符限制在計算器上）
這些方法都產生相同的結果，這是這樣的：
PS：該Base64編碼類只是一些實用工具類編碼/解碼的Base64信息（你可以找到它在下面的鏈接）。
如果你想把所有的資源爲這個（圖像，源代碼等），你可以從這裏得到他們：Resources
現在我們清理，截至...我想要的是知道的這3種方法比較好。他們每個人的優點和缺點是什麼？我應該使用哪一個？爲什麼？我也在談論JAR文件損壞的可能性。
我不關心的唯一事情是性能。
嗯......有趣的一點。事實是，這些圖像很小（每個小於1KB），並且它們不會像'字符串'那樣佔用太多空間。我認爲我會遵循常規做法（和你的建議）並使用第一種方法。但是探索其他可能性並沒有什麼壞處。 – 2012-02-20 16:47:20
問題是，你從2或3中沒有得到任何東西，但是你會受到處罰。如果zou從REST服務接收到它們，或者從某個數據庫讀取數據（因爲BLOB吸得更糟糕），那麼以base64字符串形式顯示的圖像可能是有意義的 - - 1有類路徑，二進制數據很可能已經在對齊的內存緩衝區中 - 讀取它不超過memcpy。 – 2012-02-20 18:17:44