IDEA与maven

桃扇骨 2023-10-11 10:07 10阅读 0赞

IDEA默认集成了maven，但是为了方便起见，我们还是自己安装maven比较好

### 文章目录 ###

*  Maven
 *   *  安装
     *  配置
     *   *  本地仓库配置
         *  中央仓库配置【错误的配置】
         *  jdk版本配置
     *  命令行创建maven项目
 *  idea与maven
 *   *  集成maven插件
     *  将现有项目转换为maven项目
     *   *  创建一个普通java项目
         *  将普通项目转换为maven项目
     *  不使用骨架创建maven的java工程
     *  使用骨架创建maven的web工程

# Maven #

## 安装 ##

## 配置 ##

### 本地仓库配置 ###

如果您不配置，默认会在如下位置存放从远程下载到的包：  
C:\\Users\\20713.m2\\repository  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70]  
从中央仓库下载的jar包，都会统一存放到本地仓库中。我们需要配置本地仓库的位置。

打开maven安装目录，打开conf目录下的setting.xml文件。我的在D:\\mysoftware\\apache-maven-3.6.2\\conf\\settings.xml目录下  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 1]

### 中央仓库配置【错误的配置】 ###

当构建一个maven项目时，首先检查pom.xml文件以确定依赖包的下载位置，执行顺序如下：

*  从本地资源库中查找依赖包，如果没有，执行第二步
 *  从maven默认中央仓库查找并获取依赖包（http://repo1.maven.org/maven2/），如果没有，执行第3步。
 *  果在pom.xml中定义了自定义的远程仓库，那么也会在这里的仓库中进行查找并获得依赖包，如果都没有找到，那么Maven就会抛出异常。  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 2]  
    修改默认中央仓库地址  
    打开maven安装目录，打开conf目录下的setting.xml文件。我的在D:\\mysoftware\\apache-maven-3.6.2\\conf\\settings.xml目录下

<mirrors>
        
    	 
    	<mirror>
    		<id>nexus-aliyun</id>  
    		<mirrorOf>*,!jeecg,!jeecg-snapshots</mirrorOf>  
    		<name>Nexus aliyun</name>  
    		<url>http://maven.aliyun.com/nexus/content/groups/public</url>  
    	</mirror>
    </mirrors>

### jdk版本配置 ###

打开maven安装目录，打开conf目录下的setting.xml文件。我的在D:\\mysoftware\\apache-maven-3.6.2\\conf\\settings.xml目录下  
Maven \[ERROR\] 不再支持源选项 5。请使用 6 或更高版本

备注：查看jdk版本  
![在这里插入图片描述][20190922181616925.png]

## 命令行创建maven项目 ##

1、输入命令 mvn archetype:generate，按回车，根据提示输入参数，如果是第一次使用，需要下载插件，稍等几分钟即可。  
![在这里插入图片描述][20190922180035919.png]  
2、选择骨架  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 3]  
3、输入坐标

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 4]  
4、成功  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 5]  
将项目转换成IDEA项目：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 7]  
然后就可以使用idea打开了  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 8]  
5、将项目打包。输入指令：mvn package  
![在这里插入图片描述][20190922181906233.png]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 9]

# idea与maven #

## 集成maven插件 ##

1、本地先安装idea和maven

2、配置  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 10]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 11]

## 将现有项目转换为maven项目 ##

### 创建一个普通java项目 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 12]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 13]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 14]

### 将普通项目转换为maven项目 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 15]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 16]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 17]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 18]

## 不使用骨架创建maven的java工程 ##

![1][]  
填写项目的坐标  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 19]

## 使用骨架创建maven的web工程 ##

指定骨架  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 20]

项目目录  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 21]

*  手动创建java项目，并且设置为src项目  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3poaXpoZW5nZ3Vhbg_size_16_color_FFFFFF_t_70 22]

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[20190922180035919.png]: https://img-blog.csdnimg.cn/20190922180035919.png
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