/读取.properties配置文件@parampropertiesUrl配置文件的路径@return配置文件中的keyvalue值/publicstaticMap<String,StringgetPrope

Java代码1.publicclassSonextendsFather {3.String value  null;//25.publicSon() {6.super();//17.System.out.println("Son:  " va

cString.SubString(intindex,intlength)String.SubString(intstart)等效于javascriptstringObject.substr(start,length)stringObject.substr(start) java 

1问题描述在SpringBoot中使用jasyptspringboot进行加密，但是提示：Description:Failedtobindpropertiesunder'spring.datasource.password'tojava.lang.String:

/写入文件$paytype文件名$content内容(string类型)/publicstaticfunctiondingdinglog($paytype,$content)$filename$SERVER'DOCUMENTROOT'.'/log/';$filename$filename.$paytype.

★ 数组转Collection使用ApacheJakartaCommonsCollections：1.importorg.apache.commons.collections.CollectionUtils;  3.String\\strArray{"aaa","bbb","ccc"};  4.L

值类型值类型包括基本数据类型，int,float,bool,string,以及数组和结构体(struct)。值类型变量声明后，不管是否已经赋值，编译器为其分配内存，此时该值存储于栈上。值类型的默认值：varaint//int类型默认值为0varbstring//string类型默认值为n

Test的代码比较简单publicclassTest{/\\\@paramargs\/publicstaticvoidmain(String\\args){test01();}staticvoidtest01(){System.out.println("HelloInTes

importReact,{Component}from'react'classJsonUtilsextendsReact.Component{/字符串转json/staticstringToJson(data){return

constREGEX/(\d{4})(\d{2})(\d{2})T(\d{2}):(\d{2}):(\d{2})//@functionformattime@paramval,format@return{string}@example