idea使用maven创建java web项目

maven安装

顺序不太对，按自己的思路顺序搭建

1. 下载maven

2. 配置环境变量





3.配置本地仓库

在maven的安装目录中conf/settings.xml文件配置本地仓库



配置IntelliJ

在IntelliJ的设置中，可以设置maven的安装目录，settings.xml文件的位置，和本地仓库的位置等信息。

新建项目

创建父工程

file-maven-跳过原型选择-创建



子工程：

ctrl+shift+alt+s：添加子模块



原型选择：web层用war(web app),service层和dao层用jar（quickstart）





maven模板项目结构

每个module都需要创建五个目录

配置Tomcat容器

打开菜单Run -> 选择Edit Configuration



点击“+”号 -> 选择“Tomcat Server” -> 选择“Local”



在Tomcat中部署并运行项目

Run -> Edit Configurations，进入”Run/Debug Configurations”窗口 -> 选择刚刚建立的Tomcat容器 -> 选择Deployment -> 点击右边的“+”号 -> 选择Artifact



打开Project Structure（快捷键：Ctrl+Shift+Alt+s）

dao层的web.xml设置

默认的版本是2.3，更改为2.5

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

<!-- 监听器 -->
<listener>
<!-- 默认从/WEB-INF/applicationContext.xml加载配置文件 -->
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<!-- spring配置文件 可以采用加载多个文件，中间以半角逗号分隔，也可以使用通配符号 -->
<param-value>classpath:spring/applicationContext.xml,classpath:spring/applicationContext-*.xml</param-value>
</context-param>

<!-- OpenSessionInView，解决延迟加载session在web层不可用的问题
将session的生命周期延长到和request一致
-->
<filter>
<filter-name>OpenSessionInView</filter-name>
<filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
</filter>

<filter-mapping>
<filter-name>OpenSessionInView</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<!-- 配置前端控制器 -->
<!-- 配置struts2的 前端控制器 -->
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>

</web-app>

问题

Description Resource Path Location Type

Cannot change version of project facet Dynamic Web Module to 2.5. maven-ssh0120 line 1 Maven Java EE Configuration Problem

找到工程目录：



修改：

pom.xml设置

基本配置：

每个maven都有一个pom.xml，pom.xml在工程根目录。

gropuid：项目名称

artifactid：模块名称(子项目名称)

version：版本

packaging：打包方式，jar(java工程)、war(web工程)、pom(作为父工程)

dependencies：依赖管理，配置本工程所依赖jar包（构件）

build：工程构建配置，配置插件

设置编译版本



或者让这三个地方一致

Project Structure里确认两个地方:Project sdk以及project language level

Project Structure->Modules里Sources里的Language level

Preferences->Java Compiler->Per-module bytecode Version

定义父工程的dom.xml：

<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>

<groupId>cn.itcast.maven</groupId>
<artifactId>maven-ssh</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>maven-ssh Maven Webapp</name>
<url>http://maven.apache.org</url>
<!-- 属性 -->
<properties>
<spring.version>4.2.4.RELEASE</spring.version>
<hibernate.version>5.0.7.Final</hibernate.version>
<struts.version>2.3.24</struts.version>
</properties>
<dependencyManagement>
<dependencies>
<!-- 锁定版本为 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
<version>${struts.version}</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
<version>${struts.version}</version>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-json-plugin</artifactId>
<version>${struts.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<!-- hibernate -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
</dependency>

<!-- 数据库驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version>
<scope>runtime</scope>
</dependency>
<!-- c3p0 -->

<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
<!-- 导入 struts2 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-json-plugin</artifactId>
</dependency>

<!-- servlet jsp -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!-- 日志 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.2</version>
</dependency>
<!-- junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
<scope>test</scope>
</dependency>
<!-- jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
<build>
<finalName>maven-ssh</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
<!--解决输出中文乱码-->
<properties>
<argLine>-Dfile.encoding=UTF-8</argLine>
</properties>
</project>

定义dao的dom.xml

<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>
<parent>
<groupId>cn.itcast.maven</groupId>
<artifactId>maven-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>maven-dao</artifactId>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>

<!-- 数据库驱动 -->

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.6</version>
<scope>runtime</scope>
</dependency>
<!-- c3p0 -->

<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
<!-- 日志 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.2</version>
</dependency>
<!-- junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
<scope>test</scope>
</dependency>
</dependencies>

</project>

定义service的dom.xml

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>
<parent>
<groupId>cn.itcast.maven</groupId>
<artifactId>maven-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>maven-service</artifactId>
<packaging>jar</packaging>

<dependencies>
<!-- junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
<scope>test</scope>
</dependency>
<!-- 依赖dao -->
<dependency>
<groupId>cn.itcast.maven</groupId>
<artifactId>maven-dao</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>

</project>

定义web的dom.xml

<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>
<parent>
<groupId>cn.itcast.maven</groupId>
<artifactId>maven-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>maven-web</artifactId>
<packaging>war</packaging>
<name>web工程</name>

<dependencies>
<!-- junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
<scope>test</scope>
</dependency>

<!-- 依赖service -->
<dependency>
<groupId>cn.itcast.maven</groupId>
<artifactId>maven-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<!-- 导入 struts2 -->
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-core</artifactId>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-spring-plugin</artifactId>
</dependency>
<dependency>
<groupId>org.apache.struts</groupId>
<artifactId>struts2-json-plugin</artifactId>
</dependency>

<!-- servlet jsp -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<!-- jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>

</project>

参考：

【java】intellij idea 超详细图解从0搭建SSM框架

Intellij Idea 创建Web项目并部署servlet

使用IntelliJ IDEA 配置Maven（入门）