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>

巴特西

Java Swing笔记

文本框自动换行和滚动条

用yuicompressor做个js压缩工具

打包jar

参考

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