The Technology Magazine.

Full width home advertisement



Post Page Advertisement [Top]

Combining HTML files containing tables and graphs in java

To merge HTML files in Java and combine their tables and graphs, you can use the FileWriter class to write the contents of each HTML file to a new file, one after the other. In the process, you can use a regular expression to search for <table> and <img> tags in the HTML files and replace them with the contents of the tables and images. You can also check if the HTML files and table/image files exist before trying to read them. Here is an example of how to do this:

import; import; import; import java.util.regex.Matcher; import java.util.regex.Pattern; public class HtmlMerger { public static void main(String[] args) { // The HTML files to merge String[] htmlFiles = {"file1.html", "file2.html", "file3.html"}; // The output file File outputFile = new File("merged.html"); try { FileWriter writer = new FileWriter(outputFile); // Write the contents of each HTML file to the output file for (String file : htmlFiles) { File htmlFile = new File(file); // Check if the HTML file exists if (htmlFile.exists()) { String html = htmlFile.getContent(); // Find all <table> and <img> tags in the HTML file Pattern pattern = Pattern.compile("<(table|img)[^>]+src\\s*=\\s*['\"]([^'\"]+)['\"][^>]*>"); Matcher matcher = pattern.matcher(html); // Replace the <table> and <img> tags with the contents of the tables and images while (matcher.find()) { String tagName =; // The name of the tag (table or img) String src =; // The src attribute of the tag File srcFile = new File(src); // The table or image file // Check if the table or image file exists if (srcFile.exists()) { String content = srcFile.getContent(); // The contents of the file html = html.replace(, content); // Replace the tag with the file } } // Write the modified HTML to the output file writer.write(html); } } // Close the writer to save the output file writer.close(); } catch (IOException e) { e.printStackTrace(); } } }

In this example, we define an array of HTML files to merge, and a File object representing the output file. We then create a FileWriter object that writes to the output file. In a loop, we read the contents of each HTML file and check if it exists. If it does, we search for <table> and <img> tags using a regular expression. For each tag, we check if the corresponding table or image file exists, and if it does, we replace the tag with the file's contents. Finally, we write the modified HTML to the output file and close the FileWriter to save the output

No comments:

Post a Comment

Dear visitor,
Please do not post spam. All comments will be moderated before approval.

Bottom Ad [Post Page]

| Designed by