hutool文档地址： https://www.hutool.cn/docs/
hutool的Git地址： https://github.com/looly/hutool
API介绍文档: https://apidoc.gitee.com/loolly/hutool/
jar包地址： https://repo1.maven.org/maven2/cn/hutool/hutool-all/4.5.6/
zxing 二维码解析包下载: http://repo1.maven.org/maven2/com/google/zxing/core/
hutool-aop JDK动态代理封装，提供非IOC下的切面支持
hutool-bloomFilter 布隆过滤，提供一些Hash算法的布隆过滤
hutool-cache 缓存
hutool-core 核心，包括Bean操作、日期、各种Util等
hutool-cron 定时任务模块，提供类Crontab表达式的定时任务
hutool-crypto 加密解密模块
hutool-db JDBC封装后的数据操作，基于ActiveRecord思想
hutool-dfa 基于DFA模型的多关键字查找
hutool-extra 扩展模块，对第三方封装（模板引擎、邮件、Servlet、二维码等）
hutool-http 基于HttpUrlConnection的Http客户端封装
hutool-log 自动识别日志实现的日志门面
hutool-script 脚本执行封装，例如Javascript
hutool-setting 功能更强大的Setting配置文件和Properties封装
hutool-system 系统参数调用封装（JVM信息等）
hutool-json JSON实现
hutool-captcha 图片验证码实现
hutool-poi 针对POI中Excel的封装
hutool-socket 基于Java的NIO和AIO的Socket封装
Classes类:
HostInfo
JavaInfo
JavaRuntimeInfo
JavaSpecInfo
JvmInfo
JvmSpecInfo
OsInfo
RuntimeInfo
SystemUtil
UserInfo
import java.awt.*;
import java.io.*;
import cn.hutool.system.RuntimeInfo;
import cn.hutool.system.*;
import cn.hutool.core.swing.ScreenUtil;
import cn.hutool.core.img.ImgUtil;
import cn.hutool.core.img.*;
public class Hutool {
public static void main(String[] args) {
cn_hutool_system();
// ScreenUtil.captureScreen(new File(System.getProperty("user.dir") + File.separator + "out.jpg"));
//ImgUtil.binary(new File(System.getProperty("user.dir") + File.separator + "out.jpg"),new File(System.getProperty("user.dir") + File.separator + "out1.jpg") );
// ImgUtil.pressText(new File(System.getProperty("user.dir") + File.separator + "out.jpg"),
// new File(System.getProperty("user.dir") + File.separator + "out2.jpg") ,
// "Zukgit",
// Color.BLUE,new Font("宋体",Font.BOLD,50),200 ,200 ,1);
}
public static void cn_hutool_system() {
System.out.println("#########################cn_hutool_system包#########################" );
HostInfo hostInfo = new HostInfo();
System.out.println("=========================javaRuntimeInfo=========================\n"+ hostInfo);
JavaInfo javaInfo = new JavaInfo();
System.out.println("=========================javaRuntimeInfo=========================\n"+ javaInfo);
JavaRuntimeInfo javaRuntimeInfo = new JavaRuntimeInfo();
System.out.println("=========================javaRuntimeInfo=========================\n"+ javaRuntimeInfo);
JavaSpecInfo javaSpecInfo = new JavaSpecInfo();
System.out.println("=========================javaSpecInfo=========================\n"+ javaSpecInfo);
JvmInfo jvmInfo = new JvmInfo();
System.out.println("=========================jvmInfo=========================\n"+ jvmInfo);
JvmSpecInfo jvmSpecInfo = new JvmSpecInfo();
System.out.println("=========================jvmSpecInfo=========================\n"+ jvmSpecInfo);
RuntimeInfo runtimeInfo = new RuntimeInfo();
System.out.println("=========================runtimeInfo=========================\n"+ runtimeInfo);
OsInfo osInfo = new OsInfo();
System.out.println("=========================osInfo=========================\n"+ osInfo);
SystemUtil systemUtil = new SystemUtil();
System.out.println("=========================systemUtil=========================\n"+ systemUtil);
systemUtil.dumpSystemInfo();
UserInfo userInfo = new UserInfo();
System.out.println("=========================userInfo=========================\n"+ userInfo);
}
}
#########################cn_hutool_system包#########################
=========================hostInfo=========================
Host Name: DESKTOP-CN5OQSF
Host Address: 192.168.137.2
=========================javaInfo=========================
Java Version: 1.8.0_144
Java Vendor: Oracle Corporation
Java Vendor URL: http://java.oracle.com/
=========================javaRuntimeInfo=========================
Java Runtime Name: Java(TM) SE Runtime Environment
Java Runtime Version: 1.8.0_144-b01
Java Home Dir: C:\Program Files (x86)\Java\jdk1.8.0_144\jre
Java Extension Dirs: C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext;C:\WINDOWS\Sun\Java\lib\ext
Java Endorsed Dirs: C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\endorsed
Java Class Path: C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\charsets.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\deploy.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\access-bridge-32.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\cldrdata.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\dnsns.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\jaccess.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\jfxrt.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\localedata.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\nashorn.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\sunec.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\sunjce_provider.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\sunmscapi.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\sunpkcs11.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\zipfs.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\javaws.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\jce.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\jfr.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\jfxswt.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\jsse.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\management-agent.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\plugin.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\resources.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\rt.jar;C:\Users\aaa\IdeaProjects\T1\out\production\T1;C:\Users\aaa\IdeaProjects\T1\lib\hutool.jar;C:\Users\aaa\IdeaProjects\T1\lib\B0_pinyin4j.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2018.3.5\lib\idea_rt.jar
Java Class Version: 52.0
Java Library Path: C:\Program Files (x86)\Java\jdk1.8.0_144\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Java\jdk1.8.0_144\bin;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\bin;C:\Program Files\Git\cmd;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\MacType;C:\Program Files (x86)\ADB;C:\Program Files (x86)\Graphviz2.38\bin\dot.exe;C:\Users\aaa\AppData\Local\Programs\Python\Python36-32\Scripts\;C:\Users\aaa\AppData\Local\Programs\Python\Python36-32\;C:\Users\aaa\AppData\Local\Microsoft\WindowsApps;C:\Users\aaa\AppData\Roaming\starrynote.cn\StarryNote\;C:\Program Files (x86)\Graphviz2.38\bin;C:\1_software\cmder171025\cmder;;.
Java Protocol Packages: [n/a]
=========================javaSpecInfo=========================
Java Spec. Name: Java Platform API Specification
Java Spec. Version: 1.8
Java Spec. Vendor: Oracle Corporation
=========================jvmInfo=========================
JavaVM Name: Java HotSpot(TM) Client VM
JavaVM Version: 25.144-b01
JavaVM Vendor: Oracle Corporation
JavaVM Info: mixed mode, sharing
=========================jvmSpecInfo=========================
JavaVM Spec. Name: Java Virtual Machine Specification
JavaVM Spec. Version: 1.8
JavaVM Spec. Vendor: Oracle Corporation
=========================runtimeInfo=========================
Max Memory: 247.5 MB
Total Memory: 15.5 MB
Free Memory: 11.77 MB
Usable Memory: 243.77 MB
=========================osInfo=========================
OS Arch: x86
OS Name: Windows 10
OS Version: 10.0
File Separator: \
Line Separator:
Path Separator: ;
=========================systemUtil=========================
cn.hutool.system.SystemUtil@177ecd
--------------
JavaVM Spec. Name: Java Virtual Machine Specification
JavaVM Spec. Version: 1.8
JavaVM Spec. Vendor: Oracle Corporation
--------------
JavaVM Name: Java HotSpot(TM) Client VM
JavaVM Version: 25.144-b01
JavaVM Vendor: Oracle Corporation
JavaVM Info: mixed mode, sharing
--------------
Java Spec. Name: Java Platform API Specification
Java Spec. Version: 1.8
Java Spec. Vendor: Oracle Corporation
--------------
Java Version: 1.8.0_144
Java Vendor: Oracle Corporation
Java Vendor URL: http://java.oracle.com/
--------------
Java Runtime Name: Java(TM) SE Runtime Environment
Java Runtime Version: 1.8.0_144-b01
Java Home Dir: C:\Program Files (x86)\Java\jdk1.8.0_144\jre
Java Extension Dirs: C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext;C:\WINDOWS\Sun\Java\lib\ext
Java Endorsed Dirs: C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\endorsed
Java Class Path: C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\charsets.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\deploy.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\access-bridge-32.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\cldrdata.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\dnsns.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\jaccess.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\jfxrt.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\localedata.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\nashorn.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\sunec.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\sunjce_provider.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\sunmscapi.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\sunpkcs11.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\ext\zipfs.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\javaws.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\jce.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\jfr.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\jfxswt.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\jsse.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\management-agent.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\plugin.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\resources.jar;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\lib\rt.jar;C:\Users\aaa\IdeaProjects\T1\out\production\T1;C:\Users\aaa\IdeaProjects\T1\lib\hutool.jar;C:\Users\aaa\IdeaProjects\T1\lib\B0_pinyin4j.jar;C:\Program Files\JetBrains\IntelliJ IDEA 2018.3.5\lib\idea_rt.jar
Java Class Version: 52.0
Java Library Path: C:\Program Files (x86)\Java\jdk1.8.0_144\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Java\jdk1.8.0_144\bin;C:\Program Files (x86)\Java\jdk1.8.0_144\jre\bin;C:\Program Files\Git\cmd;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\MacType;C:\Program Files (x86)\ADB;C:\Program Files (x86)\Graphviz2.38\bin\dot.exe;C:\Users\aaa\AppData\Local\Programs\Python\Python36-32\Scripts\;C:\Users\aaa\AppData\Local\Programs\Python\Python36-32\;C:\Users\aaa\AppData\Local\Microsoft\WindowsApps;C:\Users\aaa\AppData\Roaming\starrynote.cn\StarryNote\;C:\Program Files (x86)\Graphviz2.38\bin;C:\1_software\cmder171025\cmder;;.
Java Protocol Packages: [n/a]
--------------
OS Arch: x86
OS Name: Windows 10
OS Version: 10.0
File Separator: \
Line Separator:
Path Separator: ;
--------------
User Name: aaa
User Home Dir: C:\Users\aaa
User Current Dir: C:\Users\aaa\IdeaProjects\T1
User Temp Dir: C:\Users\aaa\AppData\Local\Temp\
User Language: zh
User Country: CN
--------------
Host Name: DESKTOP-CN5OQSF
Host Address: 192.168.137.2
--------------
Max Memory: 247.5 MB
Total Memory: 15.5 MB
Free Memory: 11.31 MB
Usable Memory: 243.31 MB
--------------
=========================userInfo=========================
User Name: aaa
User Home Dir: C:\Users\aaa
User Current Dir: C:\Users\aaa\IdeaProjects\T1
User Temp Dir: C:\Users\aaa\AppData\Local\Temp\
User Language: zh
User Country: CN
Process finished with exit code 0
Classes包类:
ArrayUtil BooleanUtil CharsetUtil
CharUtil ClassLoaderUtil ClassUtil EnumUtil
EscapeUtil HashUtil HexUtil IdcardUtil
IdUtil ImageUtil ModifierUtil NumberUtil
ObjectUtil PageUtil PinyinUtil RandomUtil
ReferenceUtil ReflectUtil ReUtil RuntimeUtil
StrUtil TypeUtil URLUtil XmlUtil
ZipUtil
Enums包枚举
ModifierUtil.ModifierType
ReferenceUtil.ReferenceType
API说明: https://apidoc.gitee.com/loolly/hutool/cn/hutool/core/util/StrUtil.html
觉得有用的API:
static String cleanBlank(CharSequence str) 清理空白字符 String item = StrUtil.cleanBlank(" h e l l o_ w o r l d");
static int compareVersion(CharSequence version1, CharSequence version2) 比较两个版本 null版本排在最小：
int i = StrUtil.compareVersion("10.2.31.1","10.2.30.18"); return 1【大于】 0【等于】 -1【小于】
static boolean containsBlank(CharSequence str) 给定字符串是否包含空白符（空白符包括空格、制表符、全角空格和不间断空格） 如果给定字符串为null或者""，则返回false
if(StrUtil.containsBlank("你好啊_ world")){}
static int count(CharSequence content, char charForSearch) 统计指定内容中包含指定字符的数量
int num = StrUtil.count("hello world","l");
static String[] cut(CharSequence str, int partLength) 将字符串切分为N等份
String[] strArr = StrUtil.cut("1234567890",3);
for(String value: strArr){
System.out.println("value = "+ value ); // 打印: value1 = 123 value2 = 456 value3 = 789 value4 = 0
}
static boolean isSurround(CharSequence str, CharSequence prefix, CharSequence suffix) 给定字符串是否被字符包围
boolean flag = StrUtil.isSurround("<audio xxxx = />","<audio" , "/>"); 检查前缀和后缀是否都符合要求
static String removePrefixIgnoreCase(CharSequence str, CharSequence prefix) 忽略大小写去掉指定前缀
String itemStr = StrUtil.removePrefixIgnoreCase("prez#ncjakcbjka","prez#");
static String removeSuffixIgnoreCase(CharSequence str, CharSequence suffix) 忽略大小写去掉指定后缀
String itemStr = StrUtil.removePrefixIgnoreCase("ncjakcbjkaend#","end#");
static String strip(CharSequence str, CharSequence prefix, CharSequence suffix) 去除两边的指定字符串
String itemStr = StrUtil.removePrefixIgnoreCase("prencjakcbjkaend","pre","end"); // 返回 ncjakcbjka
static String reverse(String str) 反转字符串 例如：abcd =》dcba
String reverseStr = StrUtil.reverse("123456789"); // 打印 987654321
static int[] splitToInt(CharSequence str, char separator) 切分字符串为int数组
static int[] splitToInt(CharSequence str, CharSequence separator) 切分字符串为int数组
static List<String> splitTrim(CharSequence str, char separator) 切分字符串，去除切分后每个元素两边的空白符，去除空白项
static String uuid() 生成随机UUID
String uuidStr = StrUtil.uuid(); // uuidStr = f4377531-6a8f-4f18-9e31-3cb5af68c4bf
cn.hutool.core.util.RuntimeUtil;
系统运行时工具类，用于执行系统命令的工具
static void addShutdownHook(Runnable hook) 增加一个JVM关闭后的钩子，用于在JVM关闭时执行某些操作
static Process exec(String... cmds) 执行命令 命令带参数时参数可作为其中一个参数，也可以将命令和参数组合为一个字符串传入
static Process exec(String[] envp, File dir, String... cmds) 执行命令 命令带参数时参数可作为其中一个参数，也可以将命令和参数组合为一个字符串传入
static Process exec(String[] envp, String... cmds) 执行命令 命令带参数时参数可作为其中一个参数，也可以将命令和参数组合为一个字符串传入
static List<String> execForLines(Charset charset, String... cmds) 执行系统命令，使用系统默认编码
static List<String> execForLines(String... cmds) 执行系统命令，使用系统默认编码
static String execForStr(Charset charset, String... cmds) 执行系统命令，使用系统默认编码
static String execForStr(String... cmds) 执行系统命令，使用系统默认编码
Process proc = RuntimeUtil.exec("calc");
List<String> strListProc = RuntimeUtil.execForLines("calc");
static Clipboard getClipboard() 获取系统剪贴板
static String getStr() 从剪贴板获取文本
static String getStr(Transferable content) 从剪贴板的Transferable获取文本
