{"id":2280,"date":"2025-03-03T23:22:42","date_gmt":"2025-03-03T15:22:42","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=2280"},"modified":"2025-03-03T23:22:42","modified_gmt":"2025-03-03T15:22:42","slug":"java-applet-%e5%9f%ba%e7%a1%80","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/03\/java-applet-%e5%9f%ba%e7%a1%80\/","title":{"rendered":"Java Applet \u57fa\u7840"},"content":{"rendered":"\n

1. \u4ec0\u4e48\u662f Java Applet\uff1f<\/strong><\/h3>\n\n\n\n

Java Applet<\/strong> \u662f\u4e00\u79cd\u5728 Web \u6d4f\u89c8\u5668\u4e2d\u8fd0\u884c<\/strong> \u7684 Java \u5c0f\u7a0b\u5e8f\uff0c\u4e3b\u8981\u7528\u4e8e\u521b\u5efa\u4ea4\u4e92\u5f0f\u5e94\u7528\u3002Applet \u8fd0\u884c\u5728 Java \u865a\u62df\u673a\uff08JVM\uff09<\/strong> \u4e2d\uff0c\u4f9d\u8d56\u6d4f\u89c8\u5668\u652f\u6301 Java \u63d2\u4ef6\uff08\u5982 Java Plug-in<\/strong>\uff09\u3002<\/p>\n\n\n\n

2. Applet \u7684\u7279\u70b9<\/strong><\/h3>\n\n\n\n

\u2705 \u5d4c\u5165\u7f51\u9875<\/strong>\uff0c\u4e0e HTML \u7ed3\u5408\u4f7f\u7528
\u2705 \u8de8\u5e73\u53f0<\/strong>\uff0c\u5728\u652f\u6301 Java \u7684\u6d4f\u89c8\u5668\u4e2d\u8fd0\u884c
\u2705 \u5b89\u5168\u6027\u9ad8<\/strong>\uff0c\u8fd0\u884c\u5728\u53d7\u9650\u7684\u201c\u6c99\u7bb1\u201d\u73af\u5883\u4e2d\uff0c\u9632\u6b62\u6076\u610f\u64cd\u4f5c
\u2705 \u4ea4\u4e92\u6027\u5f3a<\/strong>\uff0c\u652f\u6301\u52a8\u753b\u3001\u56fe\u5f62\u7ed8\u5236\u3001\u9f20\u6807\u548c\u952e\u76d8\u4e8b\u4ef6<\/p>\n\n\n\n

\u26a0\ufe0f \u6ce8\u610f\uff1a<\/strong> \u7531\u4e8e Java Applet \u4f9d\u8d56\u4e8e\u6d4f\u89c8\u5668\u63d2\u4ef6\uff0c\u73b0\u4ee3\u6d4f\u89c8\u5668\uff08\u5982 Chrome\u3001Firefox\u3001Edge\uff09\u5df2\u7ecf \u4e0d\u518d\u652f\u6301 Applet<\/strong>\uff0c\u63a8\u8350\u4f7f\u7528 JavaFX \u6216 HTML5+JavaScript<\/strong> \u4ee3\u66ff\u3002<\/p>\n\n\n\n

\n\n\n\n

3. \u7f16\u5199\u4e00\u4e2a\u7b80\u5355\u7684 Applet<\/strong><\/h3>\n\n\n\n

3.1 \u7ee7\u627f Applet<\/code> \u7c7b<\/strong><\/h4>\n\n\n\n

Java Applet \u9700\u8981\u7ee7\u627f java.applet.Applet<\/code> \u7c7b\uff0c\u5e76\u91cd\u5199 \u751f\u547d\u5468\u671f\u65b9\u6cd5<\/strong>\uff1a<\/p>\n\n\n\n

import java.applet.Applet;\nimport java.awt.Graphics;\n\npublic class HelloApplet extends Applet {\n    @Override\n    public void paint(Graphics g) {\n        g.drawString(\"Hello, Applet!\", 50, 50);\n    }\n}<\/code><\/pre>\n\n\n\n
\n\n\n\n
3.2 Applet \u751f\u547d\u5468\u671f<\/strong><\/h4>\n\n\n\n
Java Applet \u7531\u6d4f\u89c8\u5668\u6216 AppletViewer<\/code> \u7ba1\u7406\uff0c\u5177\u6709\u4ee5\u4e0b \u751f\u547d\u5468\u671f\u65b9\u6cd5<\/strong>\uff1a<\/p>\n\n\n\n
\u65b9\u6cd5<\/strong><\/th>\u4f5c\u7528<\/strong><\/th><\/tr><\/thead>
init()<\/code><\/td>Applet \u521d\u59cb\u5316\uff0c\u7c7b\u4f3c\u4e8e\u6784\u9020\u65b9\u6cd5<\/td><\/tr>
start()<\/code><\/td>Applet \u5f00\u59cb\u8fd0\u884c\uff0c\u9875\u9762\u5237\u65b0\u6216\u5207\u6362\u65f6\u8c03\u7528<\/td><\/tr>
paint(Graphics g)<\/code><\/td>\u7ed8\u5236\u56fe\u5f62\uff08\u5982\u6587\u672c\u3001\u56fe\u7247\uff09<\/td><\/tr>
stop()<\/code><\/td>Applet \u6682\u505c\uff0c\u9875\u9762\u5207\u6362\u6216\u9690\u85cf\u65f6\u8c03\u7528<\/td><\/tr>
destroy()<\/code><\/td>\u91ca\u653e\u8d44\u6e90\uff0cApplet \u5173\u95ed\u65f6\u8c03\u7528<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u793a\u4f8b\uff1a<\/p>\n\n\n\n
import java.applet.Applet;\nimport java.awt.Graphics;\n\npublic class LifecycleApplet extends Applet {\n    @Override\n    public void init() {\n        System.out.println(\"Applet \u521d\u59cb\u5316\");\n    }\n\n    @Override\n    public void start() {\n        System.out.println(\"Applet \u542f\u52a8\");\n    }\n\n    @Override\n    public void paint(Graphics g) {\n        g.drawString(\"\u751f\u547d\u5468\u671f\u6d4b\u8bd5\", 50, 50);\n    }\n\n    @Override\n    public void stop() {\n        System.out.println(\"Applet \u505c\u6b62\");\n    }\n\n    @Override\n    public void destroy() {\n        System.out.println(\"Applet \u9500\u6bc1\");\n    }\n}<\/code><\/pre>\n\n\n\n
\n\n\n\n
4. \u5728 HTML \u9875\u9762\u4e2d\u5d4c\u5165 Applet<\/strong><\/h3>\n\n\n\n
\u5728 HTML \u9875\u9762\u4e2d\u4f7f\u7528 <applet><\/code> \u6807\u7b7e\u52a0\u8f7d Java Applet\uff1a<\/p>\n\n\n\n
<html>\n<body>\n    <applet code=\"HelloApplet.class\" width=\"300\" height=\"200\">\n    <\/applet>\n<\/body>\n<\/html><\/code><\/pre>\n\n\n\n
\u26a0\ufe0f \u6ce8\u610f<\/strong>\uff1a\u73b0\u4ee3\u6d4f\u89c8\u5668 \u4e0d\u518d\u652f\u6301 <applet><\/code> \u6807\u7b7e<\/strong>\uff0c\u53ef\u4ee5\u4f7f\u7528 AppletViewer<\/code> \u8fd0\u884c\uff1a<\/p>\n\n\n\n
appletviewer example.html<\/code><\/pre>\n\n\n\n
\n\n\n\n
5. \u5904\u7406\u7528\u6237\u4ea4\u4e92\uff08\u9f20\u6807\u3001\u952e\u76d8\u4e8b\u4ef6\uff09<\/strong><\/h3>\n\n\n\n
Java Applet \u53ef\u4ee5\u901a\u8fc7 MouseListener<\/code> \u548c KeyListener<\/code> \u5904\u7406\u7528\u6237\u4ea4\u4e92\u3002<\/p>\n\n\n\n
5.1 \u5904\u7406\u9f20\u6807\u70b9\u51fb<\/strong><\/h4>\n\n\n\n
import java.applet.Applet;\nimport java.awt.Graphics;\nimport java.awt.event.MouseAdapter;\nimport java.awt.event.MouseEvent;\n\npublic class MouseApplet extends Applet {\n    private String message = \"\u70b9\u51fb Applet\";\n\n    @Override\n    public void init() {\n        addMouseListener(new MouseAdapter() {\n            @Override\n            public void mouseClicked(MouseEvent e) {\n                message = \"\u9f20\u6807\u70b9\u51fb\u4f4d\u7f6e: \" + e.getX() + \", \" + e.getY();\n                repaint(); \/\/ \u91cd\u65b0\u7ed8\u5236\n            }\n        });\n    }\n\n    @Override\n    public void paint(Graphics g) {\n        g.drawString(message, 50, 50);\n    }\n}<\/code><\/pre>\n\n\n\n
\n\n\n\n
5.2 \u5904\u7406\u952e\u76d8\u8f93\u5165<\/strong><\/h4>\n\n\n\n
import java.applet.Applet;\nimport java.awt.Graphics;\nimport java.awt.event.KeyAdapter;\nimport java.awt.event.KeyEvent;\n\npublic class KeyApplet extends Applet {\n    private String message = \"\u6309\u4e0b\u952e\u76d8\";\n\n    @Override\n    public void init() {\n        addKeyListener(new KeyAdapter() {\n            @Override\n            public void keyTyped(KeyEvent e) {\n                message = \"\u6309\u952e: \" + e.getKeyChar();\n                repaint();\n            }\n        });\n        setFocusable(true);\n    }\n\n    @Override\n    public void paint(Graphics g) {\n        g.drawString(message, 50, 50);\n    }\n}<\/code><\/pre>\n\n\n\n
\n\n\n\n
6. Applet \u7684\u5c40\u9650\u6027<\/strong><\/h3>\n\n\n\n
\u7531\u4e8e \u5b89\u5168\u6027\u3001\u517c\u5bb9\u6027<\/strong> \u95ee\u9898\uff0cJava Applet \u5728\u73b0\u4ee3 Web \u5f00\u53d1\u4e2d\u5df2 \u88ab\u6dd8\u6c70<\/strong>\uff1a<\/p>\n\n\n\n
    \n
  1. \u6d4f\u89c8\u5668\u4e0d\u518d\u652f\u6301<\/strong>\uff08Chrome\u3001Firefox\u3001Edge \u5df2\u79fb\u9664 Java \u63d2\u4ef6\uff09<\/li>\n\n\n\n
  2. \u9700\u8981 Java \u63d2\u4ef6\uff0c\u7528\u6237\u4f53\u9a8c\u5dee<\/strong><\/li>\n\n\n\n
  3. HTML5\u3001JavaScript\u3001WebGL \u53d6\u4ee3\u4e86 Applet \u7684\u5927\u90e8\u5206\u529f\u80fd<\/strong><\/li>\n\n\n\n
  4. JavaFX \u662f\u5b98\u65b9\u63a8\u8350\u7684\u66ff\u4ee3\u65b9\u6848<\/strong><\/li>\n<\/ol>\n\n\n\n
    \u66ff\u4ee3\u65b9\u6848\uff1a<\/strong>
    \u2705 JavaFX<\/strong>\uff08\u7528\u4e8e\u684c\u9762 GUI \u548c Web \u5e94\u7528\uff09
    \u2705 HTML5 + JavaScript<\/strong>\uff08\u53d6\u4ee3 Applet \u7684\u52a8\u753b\u3001\u4ea4\u4e92\u529f\u80fd\uff09
    \u2705 WebAssembly<\/strong>\uff08\u4f7f\u7528 Java \u7f16\u8bd1 WebAssembly \u8fd0\u884c\u5728\u6d4f\u89c8\u5668\u4e2d\uff09<\/p>\n\n\n\n
    \n\n\n\n
    7. \u8fd0\u884c Applet\uff08\u4f7f\u7528 AppletViewer\uff09<\/strong><\/h3>\n\n\n\n
    \u7531\u4e8e\u6d4f\u89c8\u5668\u4e0d\u652f\u6301 Applet\uff0c\u53ef\u4ee5\u4f7f\u7528 appletviewer<\/code> \u8fd0\u884c\uff1a<\/strong><\/p>\n\n\n\n
    appletviewer example.html<\/code><\/pre>\n\n\n\n
    \u6216\u8005\u76f4\u63a5\u5728 Java \u4ee3\u7801\u4e2d\u521b\u5efa Applet \u5bb9\u5668\uff1a<\/p>\n\n\n\n
    import javax.swing.*;\nimport java.applet.Applet;\nimport java.awt.*;\n\npublic class AppletFrame extends JApplet {\n    @Override\n    public void init() {\n        getContentPane().setBackground(Color.CYAN);\n        JLabel label = new JLabel(\"Java Applet \u5728 JFrame \u4e2d\u8fd0\u884c\", SwingConstants.CENTER);\n        add(label);\n    }\n\n    public static void main(String[] args) {\n        JFrame frame = new JFrame(\"Applet \u5bb9\u5668\");\n        Applet applet = new AppletFrame();\n        applet.init();\n        applet.start();\n\n        frame.add(applet);\n        frame.setSize(400, 300);\n        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);\n        frame.setVisible(true);\n    }\n}<\/code><\/pre>\n\n\n\n
    \n\n\n\n
    8. \u603b\u7ed3<\/strong><\/h3>\n\n\n\n
    \u529f\u80fd<\/strong><\/th>Applet<\/strong><\/th>\u73b0\u4ee3\u66ff\u4ee3\u65b9\u6848<\/strong><\/th><\/tr><\/thead>
    \u7f51\u9875\u4ea4\u4e92<\/strong><\/td>applet<\/code> \u6807\u7b7e<\/td>JavaScript + HTML5<\/td><\/tr>
    \u52a8\u753b\/\u56fe\u5f62<\/strong><\/td>Graphics<\/code> API<\/td>HTML5 Canvas\/WebGL<\/td><\/tr>
    \u7528\u6237\u8f93\u5165<\/strong><\/td>MouseListener<\/code>\u3001KeyListener<\/code><\/td>JavaScript \u4e8b\u4ef6<\/td><\/tr>
    \u684c\u9762\u5e94\u7528<\/strong><\/td>\u9700\u8981\u6d4f\u89c8\u5668\u63d2\u4ef6<\/td>JavaFX\u3001Swing<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u7ed3\u8bba\uff1a<\/strong> Java Applet \u5df2\u8fc7\u65f6<\/strong>\uff0c\u63a8\u8350\u4f7f\u7528 JavaFX\u3001HTML5\u3001WebAssembly<\/strong> \u8fdb\u884c Web \u5f00\u53d1\u3002<\/p>\n\n\n\n
    \n\n\n\n
    \u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    1. \u4ec0\u4e48\u662f Java Applet\uff1f Java Applet \u662f\u4e00\u79cd\u5728 Web \u6d4f\u89c8\u5668\u4e2d\u8fd0\u884c \u7684 Java  […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68],"tags":[],"class_list":["post-2280","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2280","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=2280"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2280\/revisions"}],"predecessor-version":[{"id":2281,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2280\/revisions\/2281"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=2280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=2280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=2280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}