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Use root account directly 1. zookeeper installation Place the zookeeper-3.4.13.tar.gz installation package in the specified directory sudo tar -zxvf zookeeper-3.4.13.tar.gz -C /usr sudo mkdir /usr/zookeeper-3.4.13/data sudo cp /usr/zookeeper-3.4.13/conf/zoo_sample.cfg /usr/zookeeper-3.4.13/conf/zoo.cfg sudo vim /usr/zookeeper-3.4.13/conf/ ...

Mr. David's Decrypt JAVA to Import and Export Excel Relevant jar packages: poi-3.11-20141221.jar commons-io-2.2.jar Three Common Techniques of Reading and Writing Excel 1. POI 2. JXL 3. FASTEXCEL Apache POI is an open source library of Apache Software Foundation. POI provides API functions for JAVA programs to read and write files i ...

Let's first look at the configuration file of the project in the previous blog: There are two packages in this file, or two modules. When a project is relatively large, there may be dozens or even hundreds of modules in it. If they all write struts.xml files like this, then struts.xml will inevitably be very confused. Struts 2 provides a mod ...

When the project was recently deployed, because MIS was configured as Tomcat 8.5 server, the Web application was abnormal and HTTP 400 error was reported (Chrome no exception, IE error). The reason for the problem is that the server receiving the request in version 8.5 will not escape the symbol. The reason why Chrome is not abnormal may be th ...

Using reflection to realize sql query and get persistent objects The Title can't think of simple words. If you want to find out the relevant information, you should first see if the method structure is in line with your appetite. public static <E> List<E> getObjectBySql(String sql,E e) { List<E> list = new ArrayList ...

1. Installing JDK Running Environment #cd /opt  #wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u112-b15/jdk-8u112-linux-x64.tar.gz  #tar zxvf jdk-8u112-linux-x64.tar.gz  #Vi/etc/pro ...

The SystemLink response message of Infor XA ERP is a relatively complex xml, which records the status of operation success and operation results or error instructions. SystemLink parsing is to parse the operation result state from the xml message of the response, and extract the error message if the operation fails. Because Infor XA ERP System ...

I. Project structure 1. Project structure: 2. The pom.xml file is as follows: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion&gt ...

Preface Recently, the company has made a group of interfaces encrypted by https protocol certificate. In order to make it easier for users to use this interface, it has made an example program of access. This article records this example program.   DefaultHttpClient deprecated Access to https uses the Apache HttpComponents tool, and the De ...

Cordova hybrid app – android– plugins Reference resources: http://cordova.apache.org/docs/en/latest/plugin_ref/spec.html 1. Create a local plugin folder directory, and then create a plugin folder such as picture_routes 2. Plug-in plugin.xml file content Name - Plug-in name js-module-js module embedded file path (e.g. - JS module definitio ...