用JAVA将CSV文件的每1000行拆分成一个XML文件

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class CSVtoXMLConverter {
    private static final int LINES_PER_XML = 1000;

    public static void main(String[] args) {
        String csvFilePath = "input.csv";
        String xmlFilePathPrefix = "output";
        
        try (BufferedReader br = new BufferedReader(new FileReader(csvFilePath))) {
            String line;
            int lineCount = 0;
            int fileCount = 1;
            List<String> lines = new ArrayList<>();
            
            while ((line = br.readLine()) != null) {
                lines.add(line);
                lineCount++;
                
                if (lineCount == LINES_PER_XML) {
                    createXMLFile(xmlFilePathPrefix + fileCount + ".xml", lines);
                    lines.clear();
                    lineCount = 0;
                    fileCount++;
                }
            }
            
            // Create XML file for remaining lines
            if (!lines.isEmpty()) {
                createXMLFile(xmlFilePathPrefix + fileCount + ".xml", lines);
            }
            
            System.out.println("CSV to XML conversion completed.");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    
    private static void createXMLFile(String xmlFilePath, List<String> lines) {
        try (FileWriter writer = new FileWriter(xmlFilePath)) {
            writer.write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
            writer.write("<data>\n");
            
            for (String line : lines) {
                String[] fields = line.split(",");
                
                writer.write("  <record>\n");
                writer.write("    <field1>" + fields[0] + "</field1>\n");
                writer.write("    <field2>" + fields[1] + "</field2>\n");
                // Add more fields as needed
                
                writer.write("  </record>\n");
            }
            
            writer.write("</data>");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}