CODEWITHSUNDEEP
javacsv
Niminim
Niminim

Reputation: 678

Reading data from a csv file - File not found exception for a valid source

I have a problem reading a csv file from the web. I get a File not found exception. That's the source: http://data.okfn.org/data/core/s-and-p-500-companies/r/constituents.csv How could it be the file cannot be found if I can easily open it ? what am I missing here ?

package Investing;


import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class Main {

   public static void main(String[] args) {

    String csvFile = "http://data.okfn.org/data/core/s-and-p-500-     companies/r/constituents.csv";
    String line = "";
    String cvsSplitBy = ",";


    try (BufferedReader br = new BufferedReader(new FileReader(csvFile))) {

        while ((line = br.readLine()) != null) {

            // use comma as separator
            String[] data = line.split(cvsSplitBy);

            System.out.println(data);

        }

    } catch (IOException e) {
        e.printStackTrace();
    }


}
}

Upvotes: 0

Views: 1673

Answers (1)

c0der
c0der

Reputation: 18792

FileReader is used for local files. See: Read remote .csv file using opencsv for reading a remote cvs file.

Another alternative to read a remote file in: 

public static void main(String[] args) {

    String csvFile = "http://data.okfn.org/data/core/s-and-p-500-companies/r/constituents.csv";

    try {
        URL url12 = new URL(csvFile);
        URLConnection urlConn = url12.openConnection();
        InputStreamReader inStream = new InputStreamReader(urlConn.getInputStream());
        BufferedReader buff = new BufferedReader(inStream);

        String line = buff.readLine();
        line  = buff.readLine();
        while (line != null) {

            System.out.println(line);
            line = buff.readLine();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

}

Upvotes: 1

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