Java Text File Read by Encode getFileContentAsString(File file, String encoding)

Description

Get the content (as string) of the given file.

License

Open Source License

Parameter

Parameter	Description
file	the file to get the content

Exception

Parameter	Description
IOException	is some problem occur while reading from file.

Return

the content of the file as string

Declaration

public static String getFileContentAsString(File file, String encoding) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

public class Main {
    /**// w  w w.ja v  a2 s. c  o  m
     * File read buffer size.
     */
    private static final int BUFFER_SIZE = 4096;

    /**
     * Get the content (as string) of the given file.
     * 
     * @param file
     *          the file to get the content
     * @return the content of the file as string
     * @throws IOException
     *           is some problem occur while reading from file.
     */
    public static String getFileContentAsString(File file, String encoding) throws IOException {
        return new String(getFileContentAsBytes(file), encoding);
    }

    /**
     * Get the content (as string) of the given file.
     * 
     * @param file
     *          the file to get the content
     * @return the content of the file as string
     * @throws IOException
     *           is some problem occur while reading from file.
     */
    public static String getFileContentAsString(File file) throws IOException {
        return getFileContentAsString(file, "UTF-8");
    }

    /**
     * Get the content of the given file (as byte[]).
     * 
     * @param file
     *          the file to get content.
     * @return the content of the file as byte[].
     * @throws IOException
     *           if some problem occur while reading file
     */
    public static byte[] getFileContentAsBytes(File file) throws IOException {
        if (file == null || !file.exists() || !file.canRead()) {
            throw new IllegalArgumentException(
                    "Can't read the given file: " + (file == null ? null : file.getAbsoluteFile()));
        }

        byte[] data = new byte[(int) file.length()];
        FileInputStream fis = null;
        try {
            fis = new FileInputStream(file);

            int offset = 0;
            int readCharacteres = 0;
            while ((readCharacteres = fis.read(data, offset,
                    fis.available() >= BUFFER_SIZE ? BUFFER_SIZE : fis.available())) > 0) {
                offset += readCharacteres;
            }
        } finally {
            if (fis != null) {
                fis.close();
            }
        }

        return data;
    }
}

Related

1. getFileContent(File file, String charset)
2. getFileContent(File file, String charsetName)
3. getFileContent(FileInputStream fis, String encoding)
4. getFileContent(InputStream is, String encoding)
5. getFileContentAsString(File file, String encoding)
6. getFileContentAsString(File file, String encoding)
7. getFileContentAsString(String filePath, String fileEncoding)
8. getFileContents(InputStream stream, String encoding)
9. getFileContents(String filename, String encoding)