Java Common Stream Processing tool streamtool Common InputStream flow string, byte array, etc.

Original: Java Common Stream Processing tool streamtool Common InputStream flow string, byte array, etc.

Source code Download: http://www.zuidaima.com/share/1550463397366784.htm

Ava Common Stream Processing tool streamtool, common InputStream flow string, byte array, etc.

* * Application Scenario:

* * 1. File Upload

2. Js/css/img and other files read output. Turn string output (JS & CSS), turn byte array output (IMG: swf etc ...)

3. Crawl the resources for the specified URL connection.

For example, read the HTML source code for the Javaniu home page

4. As you can see ....

/* Copyright 2012-2013 the Haohui Network Corporation */package com.zuidaima.haohui.common.utils;import Java.io.ByteA Rrayinputstream;import Java.io.bytearrayoutputstream;import Java.io.file;import Java.io.FileOutputStream;import Java.io.ioexception;import java.io.inputstream;/** * <pre> * Java Common Stream Processing tool * </pre> * * @project Baidamei * @a Uthor Cevencheng <[email protected]> www.zuidaima.com * @create 2012-11-29 pm 5:17:32 */public class Streamtool {/** * Save stream as File * * @param is * @param outfile */public void Streamsaveasfile (InputStream is, file outfile) {Fi Leoutputstream fos = null;try {File File = Outfile;fos = new FileOutputStream (file); byte[] buffer = new Byte[1024];int len ; while (len = is.read (buffer)) > 0) {fos.write (buffer, 0, Len);}} catch (Exception e) {e.printstacktrace (); throw new RuntimeException (e);} finally {try {is.close (); Fos.close ();} catch ( Exception E2) {e2.printstacktrace (); throw new RuntimeException (E2);}} /** * Read an input stream intoA String * @param in * @return * @throws ioexception */static public string streamtostring (InputStream in) throws Ioexcept Ion {StringBuffer out = new StringBuffer (); byte[] B = new byte[4096];for (int n; (n = in.read (b))! =-1;) {Out.append (new String (b, 0, N));} return out.tostring ();} public static byte[] Stream2byte (InputStream is) throws IOException {Bytearrayoutputstream BAOs = new Bytearrayoutputstre AM (); int len = 0;byte[] B = new Byte[1024];while (len = is.read (b, 0, b.length))! =-1) {BAOS.WR ITE (b, 0, Len);} byte[] buffer = Baos.tobytearray (); return buffer;} /** * @ Method function InputStream to BYTE * @param inputstream * @return byte array * @throws Exception */P Ublic Static byte[] Inputstream2byte (InputStream instream) throws Exception {//Bytearrayoutputstre          Am Outsteam = new Bytearrayoutputstream ();          byte[] buffer = new byte[1024];          int len =-1; while (len = instream.read (buffer)) ! =-1) {//outsteam.write (buffer, 0, Len);          }//Outsteam.close ();          Instream.close ();          return Outsteam.tobytearray ();          int count = 0;          while (count = = 0) {count = Instream.available ();          } byte[] B = new Byte[count];          Instream.read (b);      return b;      }/** * @ Method function byte to InputStream * @param byte array * @return InputStream * @throws Exception */public static InputStream Byte2inputstream (byte[] b) throws Exception {InputStream is = new BYTEARRAYINP          Utstream (b);      return is; }/** * @ function short integer and byte conversion * @param short integer * @return two-bit byte array */public static byte[] Shorttobyte (s          Hort number) {int temp = number;          Byte[] B = new byte[2];              for (int i = 0; i < b.length; i++) {B[i] = new Integer (temp & 0xff). Bytevalue ();//Keep the lowest bit in the lowest bit temp = temp >> 8;      Move right 8 bits} return B; }/** * @ function byte conversion with short integer * @param two-bit byte array * @return short integer */public static shorter Bytetoshort (by          Te[] b) {short s = 0;          Short s0 = (short) (B[0] & 0xff);//lowest bit short S1 = (short) (B[1] & 0xff);          S1 <<= 8;          s = (short) (S0 | s1);      return s; }/** * @ Method function integer and byte array conversion * @param integer * @return four-bit byte array */public static byte[] Inttobyte (i          NT i) {byte[] bt = new BYTE[4];          Bt[0] = (byte) (0xFF & i);          BT[1] = (byte) ((0xff00 & i) >> 8);          BT[2] = (byte) ((0xff0000 & i) >> 16);          BT[3] = (byte) ((0xff000000 & i) >> 24);      Return BT; }/** * @ Method function byte array and integral type conversion * @param byte array * @return int * @author www.zuidaima.com */Publ         IC static int bytestoint (byte[] bytes) {int num = bytes[0] & 0xFF; Num |= ((bytes[1] << 8) & 0xff00);          Num |= ((bytes[2] <<) & 0xFF0000);          Num |= ((bytes[3] <<) & 0xff000000);      return num; }/** * @ Method function byte array and long integer conversion * @param byte array * @return Long integer */public static byte[] Longtobyte (l          Ong number) {Long temp = number;          Byte[] B = new Byte[8];              for (int i = 0; i < b.length; i++) {B[i] = new Long (temp & 0xff). Bytevalue ();              Save the lowest bit at the lowest bit temp = temp >> 8;      Move right 8 bits} return B; }/** * @ Method function byte array and long integer conversions * @param byte array * @return Long integer */public static long Bytetolong (byt          E[] b) {long s = 0;          Long S0 = b[0] & 0xff;//lowest bit long S1 = b[1] & 0xff;          Long s2 = b[2] & 0xff;          Long s3 = b[3] & 0xff;      Long S4 = b[4] & 0xff;//lowest bit long S5 = b[5] & 0xff;    Long s6 = b[6] & 0xff; Long s7 = b[7] & 0xff;          S0 unchanged S1 <<= 8;          S2 <<= 16;          S3 <<= 24;          S4 <<= 8 * 4;          S5 <<= 8 * 5;          S6 <<= 8 * 6;          S7 <<= 8 * 7; s = S0 | S1 | S2 | S3 | S4 | S5 | S6 |          S7;      return s;     }  }

Java Common Stream Processing tool streamtool Common InputStream flow string, byte array, etc.