Question

我必须编写一个程序，用户选择一个.java文件，程序会创建一个html文件，并将所有代码写入其中，添加必要的HTML标记，以便正确显示。无论我怎么想并在网上找到我都无法正确地做到这一点，唯一能写的就是那些我创建的字符串中的HTML标签。

它运行，用户可以选择文件并选择保存位置。文件本身已创建，但.java文件中的所有信息都不会进入.html文件。

package convertjavahtml;

import java.io.*;
import java.nio.charset.Charset;
import java.util.Scanner;
import javax.swing.*;
import javax.swing.filechooser.*;
import static jdk.nashorn.internal.runtime.ScriptingFunctions.readLine;

public class ConvertJavaHTML {

    public static void main(String[] args) throws IOException{
        String name = null;
        String newname = null;
        try {
            FileNameExtensionFilter filter = new FileNameExtensionFilter("Java", "java");
            JFileChooser chooser = new JFileChooser();
            chooser.setFileFilter(filter);

            int returnVal = chooser.showOpenDialog(null);

            if (returnVal == JFileChooser.APPROVE_OPTION) {
                File file = chooser.getSelectedFile();
                name = file.getName();
                newname = name.substring(0, name.indexOf("."));
            }

            FileNameExtensionFilter filter2 = new FileNameExtensionFilter("html files (*.html)", "html");
            JFileChooser saver = new JFileChooser();
            saver.setFileFilter(filter2);
            saver.setSelectedFile(new File(newname));
            int returnVal2; 
            returnVal2 = saver.showSaveDialog(null);
            int response = 0;

            if(returnVal2 == JFileChooser.APPROVE_OPTION)
            {                
                FileWriter write = new FileWriter(saver.getSelectedFile()+".html");
                write.close();
            }

            File file = new File(name);
            Scanner scanner = new Scanner(file);
            String beg = "<h2>Demo.java</h2>\n<html>\n<pre>\n<body>\n";
            String end = "\n</body>\n</pre>\n</html>"; 
            PrintWriter out = new PrintWriter(new File(newname + ".html"));
            out.println(beg);

            try (BufferedReader bufferedReader = new BufferedReader(new FileReader(chooser.getName(file)))) {

            String readLine;
            while ((readLine = bufferedReader.readLine()) != null) {
                try (Writer writer = new BufferedWriter(new OutputStreamWriter(
                    new FileOutputStream(newname), "utf-8"))) {
                    writer.write(readLine);
                }
            }

            }

            out.print(end);
            out.flush();
            out.close();

        } catch (Exception e) {
            System.out.println("Error: " + e);
        }

    }

private static char handleFile(File file, Charset encoding) throws IOException {
    try
        (InputStream in = new FileInputStream(file);
        Reader reader = new InputStreamReader(in, encoding);

        Reader buffer = new BufferedReader(reader)){
        return handleChars(buffer);
    }
}

private static char handleChars(Reader reader) throws IOException {
    int r;
    while((r = reader.read()) != -1)
    {
        char ch = (char) r;
        System.out.println(ch + " ");
    }
    return 0;
}

}

我无法让我的程序将java文件写入html

0 个答案: