昨天在安装虚拟机的时候由于系统问题导致虚拟机未能正常使用，所以将系统从新安装后进行从新配置，发现好多东西都忘了，因此在配置完成以后特写此文以作记录，避免下次再忘记！

一. 首先安装jdk

找到JDKjar包

进行傻瓜式安装，一定注意安装路径，以被后面配置实用。

当安装好以后进行环境变量配置

首先创建JAVA_HOME，变量是jdk的路径

然后创建CLASSPATH，变量是,;%JAVA_HOME%\lib

找到Path,新建%JAVA_HOME%\bin，并上移到最上面

最后使用快捷键win+R——> 输入cmd进行检验是否配置完成

输入java -version之后出现

像这样就代表安装成功

二.安装idea

首先找到idea的安装包

进行解析并且安装，最后是使用试用期进行打开，开打以后把破解jar包扔进去进行从新启动并自动配置

三.安装数据库

数据库配置比较简单，在网上随便搜搜就行了

四.maven配置

首先解压maven的包

在maven的配置里找到conf的文件夹，在里面进行配置三个东西1.本地仓库的位置2.阿里云镜像3.设置jdk

<?xml version="1.0" encoding="UTF-8"?><!--Licensed to the Apache Software Foundation (ASF) under oneor more contributor license agreements.  See the NOTICE filedistributed with this work for additional informationregarding copyright ownership.  The ASF licenses this fileto you under the Apache License, Version 2.0 (the"License"); you may not use this file except in compliancewith the License.  You may obtain a copy of the License at    http://www.apache.org/licenses/LICENSE-2.0Unless required by applicable law or agreed to in writing,software distributed under the License is distributed on an"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANYKIND, either express or implied.  See the License for thespecific language governing permissions and limitationsunder the License.--><!-- | This is the configuration file for Maven. It can be specified at two levels: | |  1. User Level. This settings.xml file provides configuration for a single user, |                 and is normally provided in ${user.home}/.m2/settings.xml. | |                 NOTE: This location can be overridden with the CLI option: | |                 -s /path/to/user/settings.xml | |  2. Global Level. This settings.xml file provides configuration for all Maven |                 users on a machine (assuming they're all using the same Maven |                 installation). It's normally provided in |                 ${maven.conf}/settings.xml. | |                 NOTE: This location can be overridden with the CLI option: | |                 -gs /path/to/global/settings.xml | | The sections in this sample file are intended to give you a running start at | getting the most out of your Maven installation. Where appropriate, the default | values (values used when the setting is not specified) are provided. | |--><settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">  <!-- localRepository   | The path to the local repository maven will use to store artifacts.   |   | Default: ${user.home}/.m2/repository  <localRepository>/path/to/local/repo</localRepository>  --><localRepository>D:\MAVEN\.m2\repository</localRepository>  <!-- interactiveMode   | This will determine whether maven prompts you when it needs input. If set to false,   | maven will use a sensible default value, perhaps based on some other setting, for   | the parameter in question.   |   | Default: true  <interactiveMode>true</interactiveMode>  -->  <!-- offline   | Determines whether maven should attempt to connect to the network when executing a build.   | This will have an effect on artifact downloads, artifact deployment, and others.   |   | Default: false  <offline>false</offline>  -->  <!-- pluginGroups   | This is a list of additional group identifiers that will be searched when resolving plugins by their prefix, i.e.   | when invoking a command line like "mvn prefix:goal". Maven will automatically add the group identifiers   | "org.apache.maven.plugins" and "org.codehaus.mojo" if these are not already contained in the list.   |-->  <pluginGroups>    <!-- pluginGroup     | Specifies a further group identifier to use for plugin lookup.    <pluginGroup>com.your.plugins</pluginGroup>    -->  </pluginGroups>  <!-- proxies   | This is a list of proxies which can be used on this machine to connect to the network.   | Unless otherwise specified (by system property or command-line switch), the first proxy   | specification in this list marked as active will be used.   |-->  <proxies>    <!-- proxy     | Specification for one proxy, to be used in connecting to the network.     |    <proxy>      <id>optional</id>      <active>true</active>      <protocol>http</protocol>      <username>proxyuser</username>      <password>proxypass</password>      <host>proxy.host.net</host>      <port>80</port>      <nonProxyHosts>local.net|some.host.com</nonProxyHosts>    </proxy>    -->  </proxies>  <!-- servers   | This is a list of authentication profiles, keyed by the server-id used within the system.   | Authentication profiles can be used whenever maven must make a connection to a remote server.   |-->  <servers>    <!-- server     | Specifies the authentication information to use when connecting to a particular server, identified by     | a unique name within the system (referred to by the 'id' attribute below).     |     | NOTE: You should either specify username/password OR privateKey/passphrase, since these pairings are     |       used together.     |    <server>      <id>deploymentRepo</id>      <username>repouser</username>      <password>repopwd</password>    </server>    -->    <!-- Another sample, using keys to authenticate.    <server>      <id>siteServer</id>      <privateKey>/path/to/private/key</privateKey>      <passphrase>optional; leave empty if not used.</passphrase>    </server>    -->  </servers>  <!-- mirrors   | This is a list of mirrors to be used in downloading artifacts from remote repositories.   |   | It works like this: a POM may declare a repository to use in resolving certain artifacts.   | However, this repository may have problems with heavy traffic at times, so people have mirrored   | it to several places.   |   | That repository definition will have a unique id, so we can create a mirror reference for that   | repository, to be used as an alternate download site. The mirror site will be the preferred   | server for that repository.   |-->  <mirrors>    <!-- mirror     | Specifies a repository mirror site to use instead of a given repository. The repository that     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.     |    <mirror>      <id>mirrorId</id>      <mirrorOf>repositoryId</mirrorOf>      <name>Human Readable Name for this Mirror.</name>      <url>http://my.repository.com/repo/path</url>    </mirror>     -->      <!--配置阿里镜像地址-->    <mirror>          <id>alimaven</id>          <name>aliyun maven</name>          <url>http://maven.aliyun.com/nexus/content/groups/public/</url>          <mirrorOf>central</mirrorOf>              </mirror>  </mirrors>  <!-- profiles   | This is a list of profiles which can be activated in a variety of ways, and which can modify   | the build process. Profiles provided in the settings.xml are intended to provide local machine-   | specific paths and repository locations which allow the build to work in the local environment.   |   | For example, if you have an integration testing plugin - like cactus - that needs to know where   | your Tomcat instance is installed, you can provide a variable here such that the variable is   | dereferenced during the build process to configure the cactus plugin.   |   | As noted above, profiles can be activated in a variety of ways. One way - the activeProfiles   | section of this document (settings.xml) - will be discussed later. Another way essentially   | relies on the detection of a system property, either matching a particular value for the property,   | or merely testing its existence. Profiles can also be activated by JDK version prefix, where a   | value of '1.4' might activate a profile when the build is executed on a JDK version of '1.4.2_07'.   | Finally, the list of active profiles can be specified directly from the command line.   |   | NOTE: For profiles defined in the settings.xml, you are restricted to specifying only artifact   |       repositories, plugin repositories, and free-form properties to be used as configuration   |       variables for plugins in the POM.   |   |-->  <profiles>    <!-- profile     | Specifies a set of introductions to the build process, to be activated using one or more of the     | mechanisms described above. For inheritance purposes, and to activate profiles via <activatedProfiles/>     | or the command line, profiles have to have an ID that is unique.     |     | An encouraged best practice for profile identification is to use a consistent naming convention     | for profiles, such as 'env-dev', 'env-test', 'env-production', 'user-jdcasey', 'user-brett', etc.     | This will make it more intuitive to understand what the set of introduced profiles is attempting     | to accomplish, particularly when you only have a list of profile id's for debug.     |     | This profile example uses the JDK version to trigger activation, and provides a JDK-specific repo.    <profile>      <id>jdk-1.4</id>      <activation>        <jdk>1.4</jdk>      </activation>      <repositories>        <repository>          <id>jdk14</id>          <name>Repository for JDK 1.4 builds</name>          <url>http://www.myhost.com/maven/jdk14</url>          <layout>default</layout>          <snapshotPolicy>always</snapshotPolicy>        </repository>      </repositories>    </profile>    -->    <!--配置jdk1.8-->    <profile>            <id>jdk18</id>            <activation>                <activeByDefault>true</activeByDefault>                <jdk>1.8</jdk>            </activation>            <properties>                <maven.compiler.source>1.8</maven.compiler.source>                <maven.compiler.target>1.8</maven.compiler.target>                <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>            </properties>         </profile>    <!--     | Here is another profile, activated by the system property 'target-env' with a value of 'dev',     | which provides a specific path to the Tomcat instance. To use this, your plugin configuration     | might hypothetically look like:     |     | ...     | <plugin>     |   <groupId>org.myco.myplugins</groupId>     |   <artifactId>myplugin</artifactId>     |     |   <configuration>     |     <tomcatLocation>${tomcatPath}</tomcatLocation>     |   </configuration>     | </plugin>     | ...     |     | NOTE: If you just wanted to inject this configuration whenever someone set 'target-env' to     |       anything, you could just leave off the <value/> inside the activation-property.     |    <profile>      <id>env-dev</id>      <activation>        <property>          <name>target-env</name>          <value>dev</value>        </property>      </activation>      <properties>        <tomcatPath>/path/to/tomcat/instance</tomcatPath>      </properties>    </profile>    -->  </profiles>  <!-- activeProfiles   | List of profiles that are active for all builds.   |  <activeProfiles>    <activeProfile>alwaysActiveProfile</activeProfile>    <activeProfile>anotherAlwaysActiveProfile</activeProfile>  </activeProfiles>  --></settings>

以上是完整的setting.xml

配置完xml以后配置idea

配置完以后基本可以使用

5.tomcat配置

tomcat安装完以后进行配置idea即可

好知识，才能预见未来

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