Java编写ASCII码转换

以下内容来自：https://jingyan.baidu.com/article/d8072ac45e1163ec94cefd78.html

一、ASCII编码查看器

直接上代码：

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.border.EmptyBorder;
import javax.swing.border.EtchedBorder;public class ASCIIViewer extends JFrame {private static final long serialVersionUID = -6067423561196663639L;private JPanel contentPane;private JTextField asciiTextField;private JTextField numberTextField;private JLabel label3;private JLabel label6;public static void main(String[] args) {try {UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");} catch (Throwable e) {e.printStackTrace();}EventQueue.invokeLater(new Runnable() {public void run() {try {ASCIIViewer frame = new ASCIIViewer();frame.setVisible(true);} catch (Exception e) {e.printStackTrace();}}});}public ASCIIViewer() {setTitle("ASCII\u7F16\u7801\u67E5\u770B\u5668");setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 450, 150);contentPane = new JPanel();contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));contentPane.setLayout(new BorderLayout(0, 0));setContentPane(contentPane);JPanel panel = new JPanel();contentPane.add(panel, BorderLayout.CENTER);panel.setLayout(new GridLayout(2, 1, 5, 5));JPanel asciiPanel = new JPanel();asciiPanel.setBorder(new EtchedBorder(EtchedBorder.LOWERED, null, null));panel.add(asciiPanel);asciiPanel.setLayout(new GridLayout(1, 5, 5, 5));JLabel label1 = new JLabel("\u8F93\u5165\u5B57\u7B26\uFF1A");label1.setFont(new Font("微软雅黑", Font.PLAIN, 16));asciiPanel.add(label1);asciiTextField = new JTextField();asciiTextField.setFont(new Font("微软雅黑", Font.PLAIN, 16));asciiPanel.add(asciiTextField);asciiTextField.setColumns(3);JLabel label2 = new JLabel("\u8F6C\u6362\u7ED3\u679C\uFF1A");label2.setFont(new Font("微软雅黑", Font.PLAIN, 16));asciiPanel.add(label2);label3 = new JLabel("");label3.setFont(new Font("微软雅黑", Font.PLAIN, 16));asciiPanel.add(label3);JButton toNumberButton = new JButton("\u8F6C\u6362");toNumberButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {do_toNumberButton_actionPerformed(e);}});toNumberButton.setFont(new Font("微软雅黑", Font.PLAIN, 16));asciiPanel.add(toNumberButton);JPanel numberPanel = new JPanel();numberPanel.setBorder(new EtchedBorder(EtchedBorder.LOWERED, null, null));panel.add(numberPanel);numberPanel.setLayout(new GridLayout(1, 5, 5, 5));JLabel label4 = new JLabel("\u8F93\u5165\u6570\u5B57\uFF1A");label4.setFont(new Font("微软雅黑", Font.PLAIN, 16));numberPanel.add(label4);numberTextField = new JTextField();numberTextField.setFont(new Font("微软雅黑", Font.PLAIN, 16));numberPanel.add(numberTextField);numberTextField.setColumns(3);JLabel label5 = new JLabel("\u8F6C\u6362\u7ED3\u679C\uFF1A");label5.setFont(new Font("微软雅黑", Font.PLAIN, 16));numberPanel.add(label5);label6 = new JLabel("");label6.setFont(new Font("微软雅黑", Font.PLAIN, 16));numberPanel.add(label6);JButton toASCIIButton = new JButton("\u8F6C\u6362");toASCIIButton.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {do_toASCIIButton_actionPerformed(e);}});toASCIIButton.setFont(new Font("微软雅黑", Font.PLAIN, 16));numberPanel.add(toASCIIButton);}protected void do_toNumberButton_actionPerformed(ActionEvent e) {String ascii = asciiTextField.getText();int i = Character.codePointAt(ascii, 0);label3.setText("" + i);}protected void do_toASCIIButton_actionPerformed(ActionEvent e) {String number = numberTextField.getText();char[] a = Character.toChars(Integer.parseInt(number));label6.setText(new String(a));}
}

运行效果：

二、Java中文与ASCII码的转换

今天在研究Java中编码的时候，看到了Java中ascii码的强大。写了一个CoderUtils.java，以后会扩展它。

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;  /** * @date 2009-3-11 * @author Xing,Xiudong * @Email:xingxiuodng[at]gmail.com * @index:http://blog.csdn.net/xxd851116 */
public class CoderUtils {  public static char ascii2Char(int ASCII) {  return (char) ASCII;  }  public static int char2ASCII(char c) {  return (int) c;  }  public static String ascii2String(int[] ASCIIs) {  StringBuffer sb = new StringBuffer();  for (int i = 0; i < ASCIIs.length; i++) {  sb.append((char) ascii2Char(ASCIIs[i]));  }  return sb.toString();  }  public static String ascii2String(String ASCIIs) {  String[] ASCIIss = ASCIIs.split(",");  StringBuffer sb = new StringBuffer();  for (int i = 0; i < ASCIIss.length; i++) {  sb.append((char) ascii2Char(Integer.parseInt(ASCIIss[i])));  }  return sb.toString();  }  public static int[] string2ASCII(String s) {// 字符串转换为ASCII码  if (s == null || "".equals(s)) {  return null;  }  char[] chars = s.toCharArray();  int[] asciiArray = new int[chars.length];  for (int i = 0; i < chars.length; i++) {  asciiArray[i] = char2ASCII(chars[i]);  }  return asciiArray;  }  public static String getIntArrayString(int[] intArray) {  return getIntArrayString(intArray, ",");  }  public static String getIntArrayString(int[] intArray, String delimiter) {  StringBuffer sb = new StringBuffer();  for (int i = 0; i < intArray.length; i++) {  sb.append(intArray[i]).append(delimiter);  }  return sb.toString();  }  public static String getASCII(int begin, int end) {  StringBuffer sb = new StringBuffer();  for (int i = begin; i < end; i++) {  sb.append(i).append(":").append((char) i).append("/t");  // sb.append((char) i).append("/t");  if (i % 10 == 0) {  sb.append("/n");  }  }  return sb.toString();  }  public static String getCHASCII(int begin, int end) {  return getASCII(19968, 40869);  }  public static void showASCII(int begin, int end) {  for (int i = begin; i < end; i++) {  // System.out.print(i + ":" + (char) i + "/t");  System.out.print((char) i + "/t");  if (i % 10 == 0) {  System.out.println();  }  }  }  public static void showCHASCII() {  showASCII(19968, 40869);  }  public static void showIntArray(int[] intArray) {  showIntArray(intArray, ",");  }  public static void showIntArray(int[] intArray, String delimiter) {  for (int i = 0; i < intArray.length; i++) {  System.out.print(intArray[i] + delimiter);  }  }  public static void createFile(String filePathAndName, String fileContent)  throws IOException {  String filePath = filePathAndName;  filePath = filePath.toString();  File myFilePath = new File(filePath);  if (!myFilePath.exists()) {  myFilePath.createNewFile();  }  FileWriter resultFile = new FileWriter(myFilePath);  PrintWriter myFile = new PrintWriter(resultFile);  String strContent = fileContent;  myFile.println(strContent);  myFile.close();resultFile.close();}  public static void main(String[] args) throws IOException {  String s = "好好学习！天天向上！————笑的自然 2009年3月11日";  showIntArray(string2ASCII(s), " ");  System.out.println();  System.out.println(ascii2String(string2ASCII(s)));  createFile("C:/Users/huiqiang/Desktop/hui/console_ch.txt", getCHASCII(0, 50000));  }  }

运行结果：

Java中文与ASCII码的互相转换，能够下载任何字符。如下一瞥：

33:! 34:" 35:# 36:$ 37:% 38:& 39:' 40:(
41:) 42:* 43:+ 44:, 45:- 46:. 47:/ 48:0 49:1 50:2
51:3 52:4 53:5 54:6 55:7 56:8 57:9 58:: 59:; 60:<
61:= 62:> 63:? 64:@ 65:A 66:B 67:C 68:D 69:E 70:F
71:G 72:H 73:I 74:J 75:K 76:L 77:M 78:N 79:O 80:P
81:Q 82:R 83:S 84:T 85:U 86:V 87:W 88:X 89:Y 90:Z
91:[ 92:/ 93:] 94:^ 95:_ 96:` 97:a 98:b 99:c 100:d
101:e 102:f 103:g 104:h 105:i 106:j 107:k 108:l 109:m 110:n
111:o 112:p 113:q 114:r 115:s 116:t 117:u 118:v 119:w 120:x
121:y 122:z 123:{ 124:| 125:} 126:~ 127:
9471:⓿ 9472:─ 9473:━ 9474:│ 9475:┃ 9476:┄ 9477:┅ 9478:┆ 9479:┇ 9480:┈
9481:┉ 9482:┊ 9483:┋ 9484:┌ 9485:┍ 9486:┎ 9487:┏ 9488:┐ 9489:┑ 9490:┒
9491:┓ 9492:└ 9493:┕ 9494:┖ 9495:┗ 9496:┘ 9497:┙ 9498:┚ 9499:┛ 9500:├
9501:┝ 9502:┞ 9503:┟ 9504:┠ 9505:┡ 9506:┢ 9507:┣ 9508:┤ 9509:┥ 9510:┦
9511:┧ 9512:┨ 9513:┩ 9514:┪ 9515:┫ 9516:┬ 9517:┭ 9518:┮ 9519:┯ 9520:┰
9521:┱ 9522:┲ 9523:┳ 9524:┴ 9525:┵ 9526:┶ 9527:┷ 9528:┸ 9529:┹ 9530:┺
9531:┻ 9532:┼ 9533:┽ 9534:┾ 9535:┿ 9536:╀ 9537:╁ 9538:╂ 9539:╃ 9540:╄
9541:╅ 9542:╆ 9543:╇ 9544:╈ 9545:╉ 9546:╊ 9547:╋ 9548:╌ 9549:╍ 9550:╎
9551:╏ 9552:═ 9553:║ 9554:╒ 9555:╓ 9556:╔ 9557:╕ 9558:╖ 9559:╗ 9560:╘
9561:╙ 9562:╚ 9563:╛ 9564:╜ 9565:╝ 9566:╞ 9567:╟ 9568:╠ 9569:╡ 9570:╢
9571:╣ 9572:╤ 9573:╥ 9574:╦ 9575:╧ 9576:╨ 9577:╩ 9578:╪ 9579:╫ 9580:╬
9581:╭ 9582:╮ 9583:╯ 9584:╰ 9585:╱ 9586:╲ 9587:╳ 9588:╴ 9589:╵ 9590:╶
9591:╷ 9592:╸ 9593:╹ 9594:╺ 9595:╻ 9596:╼ 9597:╽ 9598:╾ 9599:╿ 9600:▀
9601:▁ 9602:▂ 9603:▃ 9604:▄ 9605:▅ 9606:▆ 9607:▇ 9608:█ 9609:▉ 9610:▊
9611:▋ 9612:▌ 9613:▍ 9614:▎ 9615:▏ 9616:▐ 9617:░ 9618:▒ 9619:▓ 9620:▔
12361:ぉ 12362:お 12363:か 12364:が 12365:き 12366:ぎ 12367:く 12368:ぐ 12369:け 12370:げ
12371:こ 12372:ご 12373:さ 12374:ざ 12375:し 12376:じ 12377:す 12378:ず 12379:せ 12380:ぜ
12381:そ 12382:ぞ 12383:た 12384:だ 12385:ち 12386:ぢ 12387:っ 12388:つ 12389:づ 12390:て
12391:で 12392:と 12393:ど 12394:な 12395:に 12396:ぬ 12397:ね 12398:の 12399:は 12400:ば
12401:ぱ 12402:ひ 12403:び 12404:ぴ 12405:ふ 12406:ぶ 12407:ぷ 12408:へ 12409:べ 12410:ぺ
12411:ほ 12412:ぼ 12413:ぽ 12414:ま 12415:み 12416:む 12417:め 12418:も 12419:ゃ 12420:や
12421:ゅ 12422:ゆ 12423:ょ 12424:よ 12425:ら 12426:り 12427:る 12428:れ 12429:ろ 12430:ゎ
12431:わ 12432:ゐ 12433:ゑ 12434:を 12435:ん 12436:ゔ 12437:ゕ 12438:ゖ 12439:゗ 12440:゘
12441:゙ 12442:゚ 12443:゛ 12444:゜ 12445:ゝ 12446:ゞ 12447:ゟ 12448:゠ 12449:ァ 12450:ア
12451:ィ 12452:イ 12453:ゥ 12454:ウ 12455:ェ 12456:エ 12457:ォ 12458:オ 12459:カ 12460:ガ
12461:キ 12462:ギ 12463:ク 12464:グ 12465:ケ 12466:ゲ 12467:コ 12468:ゴ 12469:サ 12470:ザ
12471:シ 12472:ジ 12473:ス 12474:ズ 12475:セ 12476:ゼ 12477:ソ 12478:ゾ 12479:タ 12480:ダ
12481:チ 12482:ヂ 12483:ッ 12484:ツ 12485:ヅ 12486:テ 12487:デ 12488:ト 12489:ド 12490:ナ
12491:ニ 12492:ヌ 12493:ネ 12494:ノ 12495:ハ 12496:バ 12497:パ 12498:ヒ 12499:ビ 12500:ピ
12501:フ 12502:ブ 12503:プ 12504:ヘ 12505:ベ 12506:ペ 12507:ホ 12508:ボ 12509:ポ 12510:マ
12511:ミ 12512:ム 12513:メ 12514:モ 12515:ャ 12516:ヤ 12517:ュ 12518:ユ 12519:ョ 12520:ヨ
12521:ラ 12522:リ 12523:ル 12524:レ 12525:ロ 12526:ヮ 12527:ワ 12528:ヰ 12529:ヱ 12530:ヲ
12531:ン 12532:ヴ 12533:ヵ 12534:ヶ 12535:ヷ 12536:ヸ 12537:ヹ 12538:ヺ 12539:・ 12540:ー
12541:ヽ 12542:ヾ 12543:ヿ 12544:㄀ 12545:㄁ 12546:㄂ 12547:㄃ 12548:㄄ 12549:ㄅ 12550:ㄆ
12551:ㄇ 12552:ㄈ 12553:ㄉ 12554:ㄊ 12555:ㄋ 12556:ㄌ 12557:ㄍ 12558:ㄎ 12559:ㄏ 12560:ㄐ
12561:ㄑ 12562:ㄒ 12563:ㄓ 12564:ㄔ 12565:ㄕ 12566:ㄖ 12567:ㄗ 12568:ㄘ 12569:ㄙ 12570:ㄚ
12571:ㄛ 12572:ㄜ 12573:ㄝ 12574:ㄞ 12575:ㄟ 12576:ㄠ 12577:ㄡ 12578:ㄢ 12579:ㄣ
1661:ٽ 1662:پ 1663:ٿ 1664:ڀ 1665:ځ 1666:ڂ 1667:ڃ 1668:ڄ 1669:څ 1670:چ
1671:ڇ 1672:ڈ 1673:ډ 1674:ڊ 1675:ڋ 1676:ڌ 1677:ڍ 1678:ڎ 1679:ڏ 1680:ڐ
1681:ڑ 1682:ڒ 1683:ړ 1684:ڔ 1685:ڕ 1686:ږ 1687:ڗ 1688:ژ 1689:ڙ 1690:ښ
1691:ڛ 1692:ڜ 1693:ڝ 1694:ڞ 1695:ڟ 1696:ڠ 1697:ڡ 1698:ڢ 1699:ڣ 1700:ڤ
1701:ڥ 1702:ڦ 1703:ڧ 1704:ڨ 1705:ک 1706:ڪ 1707:ګ 1708:ڬ 1709:ڭ 1710:ڮ
1711:گ 1712:ڰ 1713:ڱ 1714:ڲ 1715:ڳ 1716:ڴ 1717:ڵ 1718:ڶ 1719:ڷ 1720:ڸ
1721:ڹ 1722:ں 1723:ڻ 1724:ڼ 1725:ڽ 1726:ھ 1727:ڿ 1728:ۀ 1729:ہ 1730:ۂ
1731:ۃ 1732:ۄ 1733:ۅ 1734:ۆ 1735:ۇ 1736:ۈ 1737:ۉ 1738:ۊ 1739:ۋ 1740:ی
1741:ۍ 1742:ێ 1743:ۏ 1744:ې 1745:ۑ 1746:ے 1747:ۓ 1748:۔ 1749:ە 1750:ۖ
9311:⑟ 9312:① 9313:② 9314:③ 9315:④ 9316:⑤ 9317:⑥ 9318:⑦ 9319:⑧ 9320:⑨
9321:⑩ 9322:⑪ 9323:⑫ 9324:⑬ 9325:⑭ 9326:⑮ 9327:⑯ 9328:⑰ 9329:⑱ 9330:⑲
9331:⑳ 9332:⑴ 9333:⑵ 9334:⑶ 9335:⑷ 9336:⑸ 9337:⑹ 9338:⑺ 9339:⑻ 9340:⑼
9341:⑽ 9342:⑾ 9343:⑿ 9344:⒀ 9345:⒁ 9346:⒂ 9347:⒃ 9348:⒄ 9349:⒅ 9350:⒆
9351:⒇ 9352:⒈ 9353:⒉ 9354:⒊ 9355:⒋ 9356:⒌ 9357:⒍ 9358:⒎ 9359:⒏ 9360:⒐
9361:⒑ 9362:⒒ 9363:⒓ 9364:⒔ 9365:⒕ 9366:⒖ 9367:⒗ 9368:⒘ 9369:⒙ 9370:⒚
9824:♠ 9825:♡ 9826:♢ 9827:♣ 9828:♤ 9829:♥ 9830:♦ 9786:☺ 9787:☻ 9788:☼ ◢ 9699:◣ 9700:◤ 9701:◥
12832:㈠ 12833:㈡ 12834:㈢ 12835:㈣ 12836:㈤ 12837:㈥ 12838:㈦ 12839:㈧ 12840:㈨
汉字部分：
19971:七 19972:丄 19973:丅 19974:丆 19975:万 19976:丈 19977:三 19978:上 19979:下 19980:丌
19981:不 19982:与 19983:丏 19984:丐 19985:丑 19986:丒 19987:专 19988:且 19989:丕 19990:世
19991:丗 19992:丘 19993:丙 19994:业 19995:丛 19996:东 19997:丝 19998:丞 19999:丟 20000:丠
20001:両 20002:丢 20003:丣 20004:两 20005:严 20006:並 20007:丧 20008:丨 20009:丩 20010:个
20011:丫 20012:丬 20013:中 20014:丮 20015:丯 20016:丰 20017:丱 20018:串 20019:丳 20020:临
20021:丵 20022:丶 20023:丷 20024:丸 20025:丹 20026:为 20027:主 20028:丼 20029:丽 20030:举
20031:丿 20032:乀 20033:乁 20034:乂 20035:乃 20036:乄 20037:久 20038:乆 20039:乇 20040:么
20041:义 20042:乊 20043:之 20044:乌 20045:乍 20046:乎 20047:乏 20048:乐 20049:乑 20050:乒
20051:乓 20052:乔 20053:乕 20054:乖 20055:乗 20056:乘 20057:乙 20058:乚 20059:乛 20060:乜
20061:九 20062:乞 20063:也 20064:习 20065:乡 20066:乢 20067:乣 20068:乤 20069:乥 20070:书
20071:乧 20072:乨 20073:乩 20074:乪 20075:乫 20076:乬 20077:乭 20078:乮 20079:乯 20080:买
20081:乱 20082:乲 20083:乳 20084:乴 20085:乵 20086:乶 20087:乷 20088:乸 20089:乹 20090:乺
20091:乻 20092:乼 20093:乽 20094:乾 20095:乿 20096:亀 20097:亁 20098:亂 20099:亃 20100:亄
20101:亅 20102:了 20103:亇 20104:予 20105:争 20106:亊 20107:事 20108:二 20109:亍 20110:于
20111:亏 20112:亐 20113:云 20114:互 20115:亓 20116:五 20117:井 20118:亖 20119:亗 20120:亘

（运行代码查看生成的文件我只出来了汉字部分，而前面的特殊字符却没有，有时间再研究研究吧）

以上内容来自：http://blog.csdn.net/xxd851116/article/details/3981006

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