# Created by .ignore support plugin (hsz.mobi)### Java template# Compiled class file*.class# Log file*.log# BlueJ files*.ctxt# Mobile Tools for Java (J2ME).mtj.tmp/# Package Files #*.ja...

具体报错如下java.lang.NullPointerExceptionat org.apache.flink.streaming.connectors.kafka.internal.KafkaPartitionDiscoverer.getAllPartitionsForTopics(KafkaPartitionDiscoverer.java:77)at org.apache.flink.stre

win10下PHP开发环境搭建

图像处理-椒盐噪声package com.ydfind.image.biz.util;import com.ydfind.image.util.ImgUtils;import org.springframework.stereotype.Component;import org.springframework.stereotype.Service;import javax.image...

idea中通过正则匹配来查找替换Ctrl + r打开查找替换框如上图所示，将注释//…删除掉，则source输入“//.*”，target输入空，替换即可

根据服务器IP查询属于腾讯云还是阿里云

flink在本地idea调试出现webUI添加maven依赖：<dependency><groupId>org.apache.flink</groupId><artifactId>flink-runtime-web_2.11<artifactId><version>1.8.0<version></depend

idea中通过正则匹配来查找替换Ctrl + r打开查找替换框如上图所示，将注释//…删除掉，则source输入“//.*”，target输入空，替换即可

idea的scala程序main函数前面没有可执行的小三角如下所示：代码如下所示：package chapter01object HelloWorld {def main(args: Array[String]): Unit = {println("hello world")}}将class改为class即可新建类时应该选择scala文件的object类，而不是class类...

重现过程1.确认版本号，uat是6.4，不支持systemctl操作cat /etc/redhat-releaseRed Hat Enterprise Linux Server release 6.4 (Santiago)2.看下配置文件在哪里ps -ef | grep nginxroot ...master process /usr/local/nginx/sbin/nginx -c /usr/