[C#/COMMON] StreamReader 클래스 : Read 메소드를 사용해 대용량 파일 읽기

■ StreamReader 클래스의 Read 메소드를 사용해 대용량 파일을 읽는 방법을 보여준다.

▶ 예제 코드 (C#)


using System;
using System.IO;
using System.Text;

const int BUFFER_SIZE = 1024;

StringBuilder stringBuilder = new StringBuilder();

char[] bufferCharacterArray = new char[BUFFER_SIZE];

long totalReadCount = 0L;

using(StreamReader streamReader = new StreamReader(@"D:\sample.txt"))
{
    while(true)
    {
        int actualReadCount = streamReader.Read(bufferCharacterArray, 0, BUFFER_SIZE);

        if(actualReadCount == 0)
        {
            break;
        }

        stringBuilder.Append(bufferCharacterArray, 0, actualReadCount);

        totalReadCount += actualReadCount;
    }
}

Console.WriteLine($"{stringBuilder}");

using System;

using System.IO;

using System.Text;

const int BUFFER_SIZE = 1024;

StringBuilder stringBuilder = new StringBuilder();

char[] bufferCharacterArray = new char[BUFFER_SIZE];

long totalReadCount = 0L;

using(StreamReader streamReader = new StreamReader(@"D:\sample.txt"))

{

while(true)

{

int actualReadCount = streamReader.Read(bufferCharacterArray, 0, BUFFER_SIZE);

if(actualReadCount == 0)

{

break;

}

stringBuilder.Append(bufferCharacterArray, 0, actualReadCount);

totalReadCount += actualReadCount;

}

Console.WriteLine($"{stringBuilder}");