使用扫描仪读取CSV（） [英] Read CSV with Scanner()

问题描述

我的csv正在读入System.out，但我注意到任何带空格的文本都会被移动到下一行（作为返回\ n）

My csv is getting read into the System.out, but I've noticed that any text with a space gets moved into the next line (as a return \n)

以下是我的csv如何开始：

Here's how my csv starts:

first,last,email,address 1, address 2
john,smith,[e-mail],123 St. Street,
Jane,Smith,[e-mail],4455 Roger Cir,apt 2

运行我的应用程序后，任何有空格（地址1）的单元格都会被抛到下一行。

After running my app, any cell with a space (address 1), gets thrown onto the next line.

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class main {

    public static void main(String[] args) {
        // -define .csv file in app
        String fileNameDefined = "uploadedcsv/employees.csv";
        // -File class needed to turn stringName to actual file
        File file = new File(fileNameDefined);

        try{
            // -read from filePooped with Scanner class
            Scanner inputStream = new Scanner(file);
            // hashNext() loops line-by-line
            while(inputStream.hasNext()){
                //read single line, put in string
                String data = inputStream.next();
                System.out.println(data + "***");

            }
            // after loop, close scanner
            inputStream.close();


        }catch (FileNotFoundException e){

            e.printStackTrace();
        }

    }
}

所以这里是控制台中的结果：

So here's the result in the console:

first,last,email,address 
1,address 
2
john,smith,[e-mail],123 
St. 
Street,
Jane,Smith,[e-mail],4455 
Roger 
Cir,apt 
2

我是否错误地使用了扫描仪？

Am I using Scanner incorrectly?

推荐答案

scanner.useDelimiter(",");

这应该有效。

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;


public class TestScanner {

    public static void main(String[] args) throws FileNotFoundException {
        Scanner scanner = new Scanner(new File("/Users/pankaj/abc.csv"));
        scanner.useDelimiter(",");
        while(scanner.hasNext()){
            System.out.print(scanner.next()+"|");
        }
        scanner.close();
    }

}

对于CSV文件：

a,b,c d,e
1,2,3 4,5
X,Y,Z A,B

输出为：

a|b|c d|e
1|2|3 4|5
X|Y|Z A|B|

这篇关于使用扫描仪读取CSV（）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！