Java Swing笔记

想到了解一下GUI主要是想用来做点小工具，记录一些笔记。

文本框自动换行和滚动条

private static JTextArea addJTextArea(JPanel panel, int x, int y, int width, int height, String text) {
    JTextArea jsText = new JTextArea(text);
    jsText.setLineWrap(true);
    jsText.setWrapStyleWord(true);
    JScrollPane jsScrollPane = new JScrollPane(jsText);
    jsScrollPane.setBounds(x, y, width, height);
    //分别设置水平和垂直滚动条自动出现
    jsScrollPane.setHorizontalScrollBarPolicy(
            JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
    jsScrollPane.setVerticalScrollBarPolicy(
            JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
    panel.add(jsScrollPane);
    return jsText;
}

用yuicompressor做个js压缩工具

pom

<dependency>
  <groupId>com.yahoo.platform.yui</groupId>
  <artifactId>yuicompressor</artifactId>
  <version>2.4.8</version>
</dependency>

执行压缩并显示在文本框：

compressJsButton.addActionListener(new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) {
        try {
            ByteArrayInputStream stream = new ByteArrayInputStream(jsText.getText().getBytes());

            JavaScriptCompressor jscompressor = new JavaScriptCompressor(new BufferedReader(new InputStreamReader(stream)), new ErrorReporter() {
                @Override
                public void warning(String s, String s1, int i, String s2, int i1) {
                    jsResultText.setText(String.format("warning: %s,%s,%s,%s,%s", s, s1, i, s2, i1));
                }

                @Override
                public void error(String s, String s1, int i, String s2, int i1) {
                    jsResultText.setText(String.format("error: %s,%s,%s,%s,%s", s, s1, i, s2, i1));
                }

                @Override
                public EvaluatorException runtimeError(String s, String s1, int i, String s2, int i1) {
                    jsResultText.setText(String.format("runtimeError: %s,%s,%s,%s,%s", s, s1, i, s2, i1));
                    return null;
                }
            });

            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            OutputStreamWriter outputStreamWriter = new OutputStreamWriter(outputStream);
            BufferedWriter bufferedWriter = new BufferedWriter(outputStreamWriter);

            int linebreakpos = -1;
            boolean munge = true;
            boolean verbose = false;
            boolean preserveAllSemiColons = false;
            boolean disableOptimizations = false;
            
            jscompressor.compress(bufferedWriter, linebreakpos, munge, verbose, preserveAllSemiColons, disableOptimizations);
            bufferedWriter.flush();
            
            jsResultText.setText(new String(outputStream.toByteArray()));

        } catch (IOException e1) {
            jsResultText.setText(e1.toString());
        }
    }
});

打包jar

<build>
    <plugins>

        <plugin>
            <artifactId>maven-assembly-plugin</artifactId>
            <configuration>
                <appendAssemblyId>false</appendAssemblyId>
                <descriptorRefs>
                    <descriptorRef>jar-with-dependencies</descriptorRef>
                </descriptorRefs>
                <archive>
                    <manifest>
                        <!-- 此处指定main方法入口的class -->
                        <mainClass>com.xxx.xxx</mainClass>
                    </manifest>
                </archive>
            </configuration>
            <executions>
                <execution>
                    <id>make-assembly</id>
                    <phase>package</phase>
                    <goals>
                        <goal>assembly</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>

    </plugins>
</build>

参考

1. java中TextArea和JTextArea的自动换行和滚动条

2. [Maven]Maven构建可执行的jar包(包含依赖jar包)

3. swing教程

4. Java Swing 介绍

5. 容器（JFrame）; 其他