CommonUtils (hackerwin7 0.1.0 API)

```
public class CommonUtils
extends Object
```
common utils for jdk Created by fff on 10/28/15.

Constructors
Constructor and Description
`CommonUtils()`

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static InputStream`	`file2in(String filename, String prop)`
`static String`	`md5Hex(FileInputStream fis)` by input stream
`static String`	`md5Hex(String path)` get md5 hex string
`static String`	`md5HexFast(String path)` fast md5 lib, but may not faster than the jdk (7, 8)
`static String`	`randomString()` default random string
`static String`	`randomString(int length)` random generate string
`static String`	`sha256Hex(String path)` sha256 interface to call
`static String`	`showBytes(byte[] bytes)`

public static InputStream file2in(String filename,
                                  String prop)
                           throws Exception

public static String showBytes(byte[] bytes)

public static String md5Hex(String path)
                     throws Exception

get md5 hex string

public static String md5Hex(FileInputStream fis)
                     throws Exception

by input stream

public static String sha256Hex(String path)
                        throws Exception

sha256 interface to call

Class CommonUtils