在idea使用maven
在idea使用maven
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启动idea
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创建一个maven项目
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等待项目初始化完毕
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maven仓库多了什么东西
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idea中maven设置
注意:IDEA创建成功后看一眼maven的配置,




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maven在IDEA的配置和使用就ok了
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创建一个普通的maven项目
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在idea配置tomcat
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解决警告问题
必须配置,为什么会有问题,我们访问一个网站,需要指定一个文件夹的名字;




pom文件
- pom.xml是Maven的核心配置文件
<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<!--创建项目的时候生成的配置gav-->
<groupId>com.hyc</groupId>
<artifactId>javaweb01-maven</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>javaweb01-maven Maven Webapp</name>
<!-- FIXME change it to the project's website -->
<url>http://www.example.com</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<!-- 项目依赖文件-->
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
</dependencies>
<!--项目构建文件-->
<build>
<finalName>javaweb01-maven</finalName>
<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
<plugins>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.1.0</version>
</plugin>
<!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.2</version>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.2</version>
</plugin>
<plugin>
<artifactId>maven-install-plugin</artifactId>
<version>2.5.2</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>
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推荐去Maven中央远程仓库中下载需要的JAR包,附地址:https://mvnrepository.com/
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maven由于约定大于配置,会出现我们之后遇到写的配置文件无法被导出或者生效的问题
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解决方案:
<!-- 配置resouce来防止我们导出失败的问题--> <build> <resources> <resource> <directory>src/main/resources</directory> <excludes> <exclude>**/*.properties</exclude> <exclude>**/*.xml</exclude> </excludes> <filtering>false</filtering> </resource> <resource> <directory>src/main/java</directory> <includes> <include>**/*.properties</include> <include>**/*.xml</include> </includes> <filtering>false</filtering> </resource> </resources> </build>

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