Example usage for java.io FileInputStream read

Introduction

In this page you can find the example usage for java.io FileInputStream read.

Prototype

public int read(byte b[]) throws IOException

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:com.sm.store.TestPhp.java

public static byte[] readFile(String filename) throws IOException {
    File file = new File(filename);
    long size = file.length();
    byte[] data = new byte[(int) size];
    FileInputStream fip = new FileInputStream(file);
    int len = fip.read(data);
    if (len != data.length)
        throw new RuntimeException("size expect " + data.length + " get " + len);
    else//from w  ww  .jav a2s  .  c o m
        return data;
}

From source file:Main.java

public static String readFromFile(String path) {
    String str = null;//  w  w w . j a  v a 2  s.c om
    if (path == null || path.trim().length() == 0) {
        return null;
    }

    File file = new File(path);

    if (file.exists() && file.isFile()) {
        int filelength = (int) file.length();
        byte[] filecontent = new byte[filelength];
        try {
            FileInputStream in = new FileInputStream(file);
            in.read(filecontent);
            in.close();
            str = new String(filecontent, "UTF-8");

        } catch (Exception e) {
            Log.v(TAG, "read file is error");
            return null;
        }

    }
    return str;
}

From source file:Main.java

public static byte[] readBytesFromFile(File file) {
    if (file != null && file.exists() && file.isFile()) {
        int filelength = (int) file.length();
        byte[] filecontent = new byte[filelength];
        try {//from   w w  w  .  j  av  a 2s  . co m
            FileInputStream in = new FileInputStream(file);
            in.read(filecontent);
            in.close();

        } catch (Exception e) {
            Log.v(TAG, "read file is error");
            return null;
        }
        return filecontent;
    }
    return null;
}

From source file:Main.java

public static String convertXmlToString(String xmlFileName) throws Exception {
    File file = new File(xmlFileName);
    FileInputStream insr = new FileInputStream(file);
    byte[] fileBuffer = new byte[(int) file.length()];
    insr.read(fileBuffer);
    insr.close();//from w  w w. j a va  2  s . co m
    return new String(fileBuffer);
}

From source file:Main.java

public static byte[] readBytesFromFile(String path) {
    if (path == null || path.trim().length() == 0) {
        return null;
    }//from   ww w .java2  s .  c o  m

    File file = new File(path);

    if (file.exists() && file.isFile()) {
        int filelength = (int) file.length();
        byte[] filecontent = new byte[filelength];
        try {
            FileInputStream in = new FileInputStream(file);
            in.read(filecontent);
            in.close();

        } catch (IOException e) {
            Log.v(TAG, "read file is error");
            return null;
        }
        return filecontent;
    }
    return null;
}

From source file:Main.java

public static String encodeBase64File(String path) throws Exception {
    File file = new File(path);
    FileInputStream inputFile = new FileInputStream(file);
    byte[] buffer = new byte[(int) file.length()];
    inputFile.read(buffer);
    inputFile.close();/*from ww w .j  av a 2  s  .  com*/
    return android.util.Base64.encodeToString(buffer, Base64.DEFAULT);
}

From source file:Main.java

public static String FiletoBase64(String path) throws Exception {
    File file = new File(path);
    FileInputStream inputFile = new FileInputStream(file);
    byte[] buffer = new byte[(int) file.length()];
    inputFile.read(buffer);
    inputFile.close();/* w w  w  . j  a  v  a  2 s. c  o  m*/
    return new String(Base64.encodeBase64(buffer));
}

From source file:Main.java

public static String encodeBase64File(String path) throws Exception {
    File file = new File(path);
    FileInputStream inputFile = new FileInputStream(file);
    byte[] buffer = new byte[(int) file.length()];
    inputFile.read(buffer);
    inputFile.close();/*  ww w .  j  a  v a  2 s  .  com*/
    return Base64.encodeToString(buffer, Base64.DEFAULT);
}

From source file:Main.java

/**
 * This method reads an XML file and returns its contents as String.
 * @param xmlFileName The name (path) of the XML file.
 * @return The string (XML) representation of the XML file.
 * @throws Exception If there is a problem.
 *///from  w w  w . j ava 2  s  .  c om
public static String convertXmlToString(String xmlFileName) throws Exception {
    File file = new File(xmlFileName);
    FileInputStream insr = new FileInputStream(file);
    byte[] fileBuffer = new byte[(int) file.length()];
    insr.read(fileBuffer);
    insr.close();
    return new String(fileBuffer);
}

From source file:Main.java

public static byte[] getBytesFromFile(String path) throws IOException {
    FileInputStream file = new FileInputStream(path);
    byte[] data = new byte[(int) file.available()];
    file.read(data);
    file.close();//  w w w .  j  av a 2  s.c  o m
    return data;

}