注：scv檔案中，每行的每列之間預設是用逗號分隔的

package com.mdl.excel.csv;

import java.io.File;
import java.io.IOException;
import java.net.URL;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;

public class CsvToJson {

    // public static String getJSONFromURL(URL url, String separator) throws
    // IOException {
    //
    // String csv = IOUtils.toString
 
(url);
    // return getJSON(csv, separator);
    // }

    public static String getJSONFromFile(String fileName, String separator) throws IOException {

        byte[] bytes = null;

        bytes = FileUtils.readFileToByteArray(new File(fileName));

        String csv = new String(bytes, "GBK");

        // System.out
 
.println(csv);

        return getJSON(csv, separator).replace("\r", "").replace("\n", "").replace("\b", "").replaceAll("\\s*", "");
    }

    public static String getJSON(String content, String separator) {

        StringBuilder sb = new StringBuilder("[\n");

        String csv = content;
        String csvValues[] = csv.split
 
("\n");
        String header[] = csvValues[0].split(separator);

        for (int i = 1; i < csvValues.length; i++) {
            sb.append("\t").append("{").append("\n");
            String tmp[] = csvValues[i].split(separator);

            for (int j = 0; j < tmp.length; j++) {

                sb.append("\t").append("\t\"").append(header[j].replaceAll("\\s*", "").replace("\"", "")).append("\":\"")
                        .append(tmp[j].replaceAll("\\s*", "").replace("\"", "")).append("\"");
                if (j < tmp.length - 1) {
                    sb.append(",\n");
                } else {
                    sb.append("\n");
                }
            }
            if (i < csvValues.length - 1) {
                sb.append("\t},\n");
            } else {
                sb.append("\t}\n");
            }
        }

        sb.append("]");

        return sb.toString();
    }

    public static void main(String[] args) throws Exception {
        System.out.println(getJSONFromFile("C:/Users/mdl/Desktop/units/test.csv", "\\,"));
    }
}