package?test;

import?java.io.ByteArrayOutputStream;
import?java.io.FileInputStream;
import?java.io.IOException;
import?java.io.InputStream;

/**
?*?文件操作工具類
?*/
public?class?FileUtil?{
	/**
	?*?讀取文件內(nèi)容為二進(jìn)制數(shù)組
	?*?
	?*?@param?filePath
	?*?@return
	?*?@throws?IOException
	?*/
	public?static?byte[]?read2ByteArray（String?filePath）?throws?IOException?{

		InputStream?in?=?new?FileInputStream（filePath）;
		byte[]?data?=?inputStream2ByteArray（in）;
		in.close（）;

		return?data;
	}

	/**
	?*?流轉(zhuǎn)二進(jìn)制數(shù)組
	?*?
	?*?@param?in
	?*?@return
	?*?@throws?IOException
	?*/
	private?static?byte[]?inputStream2ByteArray（InputStream?in）?throws?IOException?{

		ByteArrayOutputStream?out?=?new?ByteArrayOutputStream（）;
		byte[]?buffer?=?new?byte[1024?*?4];
		int?n?=?0;
		while?（（n?=?in.read（buffer））?!=?-1）?{
			out.write（buffer?0?n）;
		}
		return?out.toByteArray（）;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-19?15:09??webiat_demo\
?????文件?????????152??2017-10-19?15:08??webiat_demo\readme.txt
?????目錄???????????0??2017-12-14?16:03??webiat_demo\webiat_demo\
?????文件?????????513??2017-12-19?15:23??webiat_demo\webiat_demo\.classpath
?????文件?????????387??2017-12-01?09:15??webiat_demo\webiat_demo\.project
?????目錄???????????0??2017-12-14?16:03??webiat_demo\webiat_demo\.settings\
?????文件?????????598??2017-10-19?14:22??webiat_demo\webiat_demo\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2017-12-19?15:24??webiat_demo\webiat_demo\bin\
?????文件??????232771??2016-07-04?15:57??webiat_demo\webiat_demo\bin\commons-codec-1.6.jar
?????文件???????68962??2017-12-01?09:06??webiat_demo\webiat_demo\bin\demo.wav
?????文件?????3782727??2017-09-15?15:09??webiat_demo\webiat_demo\bin\netty-all-4.1.15.Final.jar
?????目錄???????????0??2017-12-19?15:23??webiat_demo\webiat_demo\bin\test\
?????文件????????1079??2017-12-19?15:23??webiat_demo\webiat_demo\bin\test\FileUtil.class
?????文件????????3424??2017-12-19?15:23??webiat_demo\webiat_demo\bin\test\HttpUtil.class
?????文件????????2972??2017-12-19?15:30??webiat_demo\webiat_demo\bin\test\TestWebIat.class
?????目錄???????????0??2017-12-19?15:23??webiat_demo\webiat_demo\lib\
?????文件??????232771??2016-07-04?15:57??webiat_demo\webiat_demo\lib\commons-codec-1.6.jar
?????文件?????3782727??2017-09-15?15:09??webiat_demo\webiat_demo\lib\netty-all-4.1.15.Final.jar
?????目錄???????????0??2017-12-19?15:24??webiat_demo\webiat_demo\resource\
?????文件???????68962??2017-12-01?09:06??webiat_demo\webiat_demo\resource\demo.wav
?????目錄???????????0??2017-12-14?16:03??webiat_demo\webiat_demo\src\
?????目錄???????????0??2017-12-19?15:15??webiat_demo\webiat_demo\src\test\
?????文件?????????948??2017-10-19?14:52??webiat_demo\webiat_demo\src\test\FileUtil.java
?????文件????????2378??2017-12-19?15:15??webiat_demo\webiat_demo\src\test\HttpUtil.java
?????文件????????2319??2017-12-19?15:30??webiat_demo\webiat_demo\src\test\TestWebIat.java