Utils (tiny 1.1.5 API)

java.lang.Object
- cn.xnatural.app.Utils

```
public class Utils
extends Object
```
常用工具集

Field Summary

Fields
Modifier and Type Field and Description

static char[] CS

protected static org.slf4j.Logger log

Fields
Modifier and Type	Field and Description
`static char[]`	`CS`
`protected static org.slf4j.Logger`	`log`

Constructor Summary

Constructors
Constructor and Description

Utils()

Constructors
Constructor and Description
`Utils()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static File`	`baseDir(String child)` 项目根目录下边找目录或文件
`static String`	`buildUrl(String urlStr, Map<String,Object> params)` 把查询参数添加到 url 后边
`static <S,T> Copier<S,T>`	`copier(S src, T target)` 对象复制器
`static Httper`	`http()` 构建一个 http 请求, 支持 get, post.
`static long`	`ioCopy(InputStream is, OutputStream os)` io 流 copy
`static long`	`ioCopy(InputStream is, OutputStream os, Integer bufSize)` io 流 copy `try (InputStream is = new FileInputStream("d:/tmp/1.txt"); OutputStream os = new FileOutputStream("d:/tmp/2.txt")) { Utils.ioCopy(is, os); }`
`static String`	`ipv4()` 本机ipv4地址
`static boolean`	`isLinux()` 判断系统是否为 linux 系统判断方法来源 io.netty.channel.epoll.Native#loadNativeLibrary()
`static void`	`iterateField(Class clz, Consumer<Field> fn)` 查找字段
`static void`	`iterateMethod(Class clz, Consumer<Method> fn)` 遍历所有方法并处理
`static String`	`md5Hex(byte[] bs)` md5 hex
`static String`	`pid()` 得到jvm进程号
`static String`	`random(int length)` 随机字符串(区分大小写)
`static String`	`random(int length, String prefix, String suffix)` 随机字符串(区分大小写)
`static byte[]`	`sha1(byte[] bs)` sha1 加密
`static Tailer`	`tailer()` 文件内容监控器(类linux tail)
`static <T> T`	`to(Object v, Class<T> type)` 类型转换

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - log
```
protected static final org.slf4j.Logger log
```
  - CS
```
public static final char[] CS
```
- Constructor Detail
  - Utils
```
public Utils()
```
- Method Detail
  - pid
```
public static String pid()
```
    得到jvm进程号
    
    Returns:
    
    pid
  - isLinux
```
public static boolean isLinux()
```
    判断系统是否为 linux 系统判断方法来源 io.netty.channel.epoll.Native#loadNativeLibrary()
    
    Returns:
    
    true: linux
  - baseDir
```
public static File baseDir(String child)
```
    项目根目录下边找目录或文件
    
    Parameters:
    
    child - 项目根目录下的子目录/文件
  - ipv4
```
public static String ipv4()
```
    本机ipv4地址
  - sha1
```
public static byte[] sha1(byte[] bs)
```
    sha1 加密
    
    Parameters:
    
    bs - 被加密码byte[]
    
    Returns:
    
    加密后 byte[]
  - md5Hex
```
public static String md5Hex(byte[] bs)
```
    md5 hex
    
    Parameters:
    
    bs - 被加密的byte[]
    
    Returns:
    
    md5加密后的字符串
  - random
```
public static String random(int length,
                            String prefix,
                            String suffix)
```
    随机字符串(区分大小写)
    
    Parameters:
    
    length - 长度
    
    prefix - 前缀
    
    suffix - 后缀
    
    Returns:
    
    str
  - random
```
public static String random(int length)
```
    随机字符串(区分大小写)
    
    Parameters:
    
    length - 长度
    
    Returns:
    
    str
  - to
```
public static <T> T to(Object v,
                       Class<T> type)
```
    类型转换
    
    Parameters:
    
    v - 值
    
    type - 转换的类型
    
    Returns:
    
    转换后的结果
  - iterateMethod
```
public static void iterateMethod(Class clz,
                                 Consumer<Method> fn)
```
    遍历所有方法并处理
    
    Parameters:
    
    clz - Class
    
    fn - 函数
  - iterateField
```
public static void iterateField(Class clz,
                                Consumer<Field> fn)
```
    查找字段
    
    Parameters:
    
    clz - Class
    
    fn - 函数
  - http
```
public static Httper http()
```
    构建一个 http 请求, 支持 get, post. 文件上传.
    
    Returns:
    
    Httper
  - buildUrl
```
public static String buildUrl(String urlStr,
                              Map<String,Object> params)
```
    把查询参数添加到 url 后边
    
    Parameters:
    
    urlStr - url
    
    params - 参数
    
    Returns:
    
    完整url
  - tailer
```
public static Tailer tailer()
```
    文件内容监控器(类linux tail)
    
    Returns:
    
    Tailer
  - copier
```
public static <S,T> Copier<S,T> copier(S src,
                                       T target)
```
    对象复制器
    
    Type Parameters:
    
    S - 源对象类型
    
    T - 目标对象类型
    
    Parameters:
    
    src - 源对象
    
    target - 目标对象
    
    Returns:
    
    Copier
  - ioCopy
```
public static long ioCopy(InputStream is,
                          OutputStream os,
                          Integer bufSize)
                   throws IOException
```
    io 流 copy try (InputStream is = new FileInputStream("d:/tmp/1.txt"); OutputStream os = new FileOutputStream("d:/tmp/2.txt")) { Utils.ioCopy(is, os); }
    
    Parameters:
    
    is - 输入流
    
    os - 输出流
    
    bufSize - 每次读取字节大小
    
    Returns:
    
    总复制大小
    
    Throws:
    
    IOException - OutputStream.write(byte[], int, int)
  - ioCopy
```
public static long ioCopy(InputStream is,
                          OutputStream os)
                   throws IOException
```
    io 流 copy
    
    Parameters:
    
    is - 输入流
    
    os - 输出流
    
    Returns:
    
    总复制大小
    
    Throws:
    
    IOException - OutputStream.write(byte[], int, int)

Class Utils

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

log

CS

Constructor Detail

Utils

Method Detail

pid

isLinux

baseDir

ipv4

sha1

md5Hex

random

random

to

iterateMethod

iterateField

http

buildUrl

tailer

copier

ioCopy

ioCopy