01 2025 档案
摘要:官网:https://ipython.org/ Microsoft Windows [版本 10.0.20348.2527] (c) Microsoft Corporation。保留所有权利。 C:\Users\Administrator>pip Usage: pip <command> [opti
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摘要:修改前: Windows: 修改后: Windows: 对比: Windows: 修改过程: Windows: C:\Users\Administrator\Documents\spark\spark-3.5.4-bin-hadoop3>copy conf\log4j2.properties.tem
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摘要:https://www.python.org/about/quotes/
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摘要:准备数据库 create database mysqlguide; use mysqlguide; drop table StockPrice; create table StockPrice(stock_id int primary key not null, close float, date
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摘要:https://www.python.org/about/apps/
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摘要:C:\Users\Administrator\Documents\spark\spark-3.5.4-bin-hadoop3>.\bin\spark-shell Missing Python executable 'python3', defaulting to 'C:\Users\Administ
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摘要:https://www.python.org/about/success/
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摘要:错误展示: 解决办法: create user 'hadoopguide'@'localhost' identified by 'hadoopguide'; grant all privileges on hadoopguide.* to 'hadoopguide'@'localhost' with
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摘要:方法一: 待补。。。 方法二: 1.选中项目 2.添加框架 3.选择Maven 效果图:
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摘要:https://spark.apache.org/docs/latest/quick-start.html
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摘要:C:\Users\Administrator>mysql -uroot -p Enter password: **** Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Ser
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摘要:https://www.cloudpatterns.org/异常
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摘要:https://www.whatisrest.com/已停用已被其他组织或个人用于其他服务
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摘要:C:\Users\Administrator>scala Welcome to Scala 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_421). Type in expressions for evaluation. Or try
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摘要:https://twill.apache.org/(已停用)
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摘要:C:\Users\Administrator>scala Welcome to Scala 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_421). Type in expressions for evaluation. Or try
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摘要:1.将工具名称作为参数 [root@master ~]# sqoop help 25/01/19 18:22:20 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7 usage: sqoop COMMAND [ARGS] Available command
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摘要:C:\Users\Administrator>scala Welcome to Scala 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_421). Type in expressions for evaluation. Or try
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摘要:[root@master ~]# sqoop help import 25/01/18 18:36:06 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7 usage: sqoop import [GENERIC-ARGS] [TOOL-ARGS] Com
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摘要:https://incubator.apache.org/projects/slider.html
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摘要:[root@master ~]# hdfs fsck / -files -blocks Connecting to namenode via http://master:50070/fsck?ugi=root&files=1&blocks=1&path=%2F FSCK started by roo
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摘要:https://www.informit.com/?utm_source=infomit.com&cmpid=infomit.com https://www.thomaserl.com/books/ https://www.servicetechspecs.com/已停用 https://servi
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摘要:Administrator@WIN-5B2ST4S1K5H MINGW64 ~/Documents/spark $ tar -xf spark-3.5.4-bin-hadoop3.tgz Administrator@WIN-5B2ST4S1K5H MINGW64 ~/Documents/spark
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摘要:Administrator@WIN-5B2ST4S1K5H MINGW64 ~/Documents/spark $ ls spark-3.5.4-bin-hadoop3.tgz spark-3.5.4-bin-without-hadoop.tgz Administrator@WIN-5B2ST4S1
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摘要:报错展示: 解决办法: vi /usr/local/src/sqoop/bin/configure-sqoop ## Moved to be a runtime check in sqoop. #if [ ! -d "${HCAT_HOME}" ]; then # echo "Warning: $H
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摘要:系统配置: 电脑:Windows Server 2012 Datacenter 安卓:JOYUI 12 21.08.25 苹果:iPhone XR 16.6 电脑: 下载地址: ExtensoDesk官方: https://www.extensodesk.cn/ spaceDesk官方(自行魔法):
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摘要:官网: https://spark.apache.org/downloads.html 效果图: 华为镜像: https://mirrors.huaweicloud.com/apache/spark/ 效果图:
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摘要:C:\Users\Administrator>scala Welcome to Scala 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_421). Type in expressions for evaluation. Or try
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摘要:1.下载pe:https://www.ghxi.com/yc76012453.html 2.VMware新建虚拟机 3.进入pe新建分区 4.下载系统镜像文件:https://www.ghxi.com/yc76012453.html 5.选择系统镜像文件:虚拟机>设置>硬件>连接>使用ISO映像文件
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摘要:C:\Users\Administrator>scala Welcome to Scala 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_421). Type in expressions for evaluation. Or try
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摘要:package stream; import java.util.ArrayList; import java.util.List; public class test01 { public static <T> T pri(T input){ System.out.println(input);
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摘要:错误展示: 过程追溯: 源代码: https://www.cnblogs.com/used-conduit-onion/p/18656072 错误原因: 第一句的package stream;设置了包名 解决办法: 方法一: 删除package stream;编译 效果图: (1/2)控制台: (2
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摘要:package stream; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.io.PrintWriter; import java.n
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摘要:问题描述: 解决办法: 使用javac -encoding UTF-8代替javac 效果图:
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摘要:语法val 变量名称 分隔符: 类型 赋值符号 值 scala> val x: Int = 5 x: Int = 5
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摘要:NCDC:https://www.ncei.noaa.gov/ 中国气象数据网:https://data.cma.cn/
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摘要:Scanner in = new Scanner("mygile.txt"); String str = in.nextLine(); System.out.println(str); 效果图: ps: 1.没有用类Paths的静态方法get指定路径,直接在创建Scanner新对象时传入文件名做参数
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摘要:String dir = System.getProperty("user.dir"); System.out.println(dir); 效果图:
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摘要:package stream; import java.io.IOException; import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.nio.file.Paths; import j
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摘要:https://setiathome.berkeley.edu/
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摘要:https://amplab.cs.berkeley.edu/software/
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摘要:PrintWriter out = null; try { out = new PrintWriter("./src/test/myfile.txt","UTF-8"); } catch (FileNotFoundException fileNotFoundException) { fileNotF
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摘要:try { Scanner in = new Scanner(Paths.get("C:\Users\Administrator\IdeaProjects\untitled2\src\test\myfile.txt"),"UTF-8"); } catch (IOException ioExcepti
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摘要:https://www.meetup.com/spark-users/
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