Android File Content Get getFileContent(String filePath, String charSet)

Description

get File Content

License

Sun Public License Notice

Declaration

public static String getFileContent(String filePath, String charSet)
        throws IOException 

Method Source Code

//package com.java2s;
/*****************************************************************************
 *                                                                           *
 *  This file is part of the tna framework distribution.                     *
 *  Documentation and updates may be get from  biaoping.yin the author of    *
 *  this framework                          *
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 *  Sun Public License Notice:                                               *
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 *  The contents of this file are subject to the Sun Public License Version  *
 *  1.0 (the "License"); you may not use this file except in compliance with *
 *  the License. A copy of the License is available at http://www.sun.com    *
 *                                                                           *
 *  The Original Code is tag. The Initial Developer of the Original          *
 *  Code is biaoping yin. Portions created by biaoping yin are Copyright     *
 *  (C) 2000.  All Rights Reserved.                                          *
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 *  GNU Public License Notice:                                               *
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 *  Alternatively, the contents of this file may be used under the terms of  *
 *  the GNU Lesser General Public License (the "LGPL"), in which case the    *
 *  provisions of LGPL are applicable instead of those above. If you wish to *
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 *  this file under either the SPL or the LGPL.                              *
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 *  biaoping.yin (yin-bp@163.com)                                            *
 *  Author of Learning Java                                        *
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 *****************************************************************************/

import java.io.BufferedOutputStream;
import java.io.BufferedReader;

import java.io.ByteArrayOutputStream;
import java.io.File;

import java.io.FileInputStream;
import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringWriter;

import java.io.Writer;

public class Main {

    public static String getFileContent(String filePath, String charSet)
            throws IOException {
        return getFileContent(new File(filePath), charSet);
    }/*from w  ww  .  java 2  s  . c o  m*/

    public static String getFileContent(File file, String charSet)
            throws IOException {
        ByteArrayOutputStream swriter = null;
        OutputStream temp = null;
        InputStream reader = null;
        try {
            reader = new FileInputStream(file);
            swriter = new ByteArrayOutputStream();
            temp = new BufferedOutputStream(swriter);

            int len = 0;
            byte[] buffer = new byte[1024];
            while ((len = reader.read(buffer)) > 0) {
                temp.write(buffer, 0, len);
            }
            temp.flush();
            if (charSet != null && !charSet.equals(""))
                return swriter.toString(charSet);
            else
                return swriter.toString();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return "";
        } catch (IOException e) {
            e.printStackTrace();
            throw e;
        } finally {
            if (reader != null)
                try {
                    reader.close();
                } catch (IOException e) {
                }
            if (swriter != null)
                try {
                    swriter.close();
                } catch (IOException e) {
                }
            if (temp != null)
                try {
                    temp.close();
                } catch (IOException e) {
                }
        }
    }

    public static String getFileContent(String filePath) throws IOException {
        Writer swriter = null;
        Reader reader = null;
        try {
            reader = new FileReader(filePath);

            swriter = new StringWriter();

            int len = 0;
            char[] buffer = new char[1024];
            while ((len = reader.read(buffer)) != -1) {
                swriter.write(buffer, 0, len);
            }
            return swriter.toString();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return "";
        } catch (IOException e) {
            e.printStackTrace();
            throw e;
        } finally {
            if (reader != null)
                try {
                    reader.close();
                } catch (IOException e) {
                }
            if (swriter != null)
                try {
                    swriter.close();
                } catch (IOException e) {
                }
        }
    }

    public static String getFileContent(File file) {
        Writer swriter = null;
        Reader reader = null;
        try {
            reader = new FileReader(file);
            swriter = new StringWriter();

            int len = 0;
            char[] buffer = new char[1024];
            while ((len = reader.read(buffer)) > 0) {
                swriter.write(buffer, 0, len);
            }
            swriter.flush();
            return swriter.toString();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return "";
        } catch (IOException e) {
            e.printStackTrace();
            return "";
        } finally {
            if (reader != null)
                try {
                    reader.close();
                } catch (IOException e) {
                }
            if (swriter != null)
                try {
                    swriter.close();
                } catch (IOException e) {
                }
        }

    }

    public static StringBuffer read(String file) throws Exception {
        BufferedReader in = null;
        StringBuffer sb = new StringBuffer();
        String s = null;
        StringBuffer stringbuffer;
        try {
            in = new BufferedReader(new FileReader(file));
            while ((s = in.readLine()) != null)
                sb.append(s).append('\n');
            stringbuffer = sb;
        } finally {
            if (in != null)
                in.close();
        }
        return stringbuffer;
    }
}

Related

1. getFileContent(String fileName)
2. getFileContent(String filePath)
3. printFileContent(String filePath)