使用maven搭建SSM环境
maven搭建SSM
文章目录
- maven搭建SSM
- 准备
- 步骤
- 参考链接
准备
- eclipse
Eclipse Java EE IDE for Web Developers. Version: Photon Release (4.8.0)
官网
参考这里
- maven
Apache Maven 3.3.9
maven下载地址
eclipse里自带了maven，但是建议使用外部的maven，然后设置maven远程仓库地址为阿里云的（速度快）
- 配置外部maven
window -> preferences -> Maven -> Installation
点击 Add，在"new Maven Runtime"里，点击Directory选择maven安装目录，然后点击Finish，添加成功！
勾选刚刚添加的 apache-maven，然后点击Apply，应用
去maven的安装目录
...\apache-maven..xxx\conf\setting.xml中，修改settings.xml，将mirrors替换为以下内容
<mirrors>
<mirror>
<id>alimavenid>
<name>aliyun mavenname>
<url>http://maven.aliyun.com/nexus/content/groups/public/url>
<mirrorOf>centralmirrorOf>
mirror>
<mirror>
<id>centralid>
<name>Maven Repository Switchboardname>
<url>http://repo1.maven.org/maven2/url>
<mirrorOf>centralmirrorOf>
mirror>
<mirror>
<id>repo2id>
<mirrorOf>centralmirrorOf>
<name>Human Readable Name for this Mirror.name>
<url>http://repo2.maven.org/maven2/url>
mirror>
<mirror>
<id>ibiblioid>
<mirrorOf>centralmirrorOf>
<name>Human Readable Name for this Mirror.name>
<url>http://mirrors.ibiblio.org/pub/mirrors/maven2/url>
mirror>
<mirror>
<id>jboss-public-repository-groupid>
<mirrorOf>centralmirrorOf>
<name>JBoss Public Repository Groupname>
<url>http://repository.jboss.org/nexus/content/groups/publicurl>
mirror>
<mirror>
<id>maven.net.cnid>
<name>oneof the central mirrors in chinaname>
<url>http://maven.net.cn/content/groups/public/url>
<mirrorOf>centralmirrorOf>
mirror>
mirrors>
然后选择 User Settings ->Browse，将maven安装目录下的/config/setting.xml选中，点击Apply应用。
步骤
-
新建maven项目
new -> other搜索maven，选则maven Project
点击next
点击 next
在Filter中搜索web，然后选中org.apache.maven.archetypes maven-archetype-webapp，点击next
填写好Group Id，和 Artifact Id，点击Finish
Group id: 组织id，域名倒写；
Artifact id：项目、模块id；
Version： 版本；
Packaging: 该元素决定了项目的打包方式，有3种，jar，war，pom（比如是一个父模块）；
Maven为jar项目调用了maven-jar-plugin，为war项目调用了maven-war-plugin，换言之，packaging直接影响Maven的构建生命周期
生成的项目如下
初次创建可能会比较慢，多等待一会即可。
- 补全 Source Folder：
src/main/resources
src/main/java
src/test/resources
src/test/java
项目上右键-> new ->Source Folder
- 在项目上右键 选择 properties ->java Build Path，选择JRE System Library -> Eidt，更换jre为workspace defautlt jre
- 在项目上右键 选择 properties ->Deployment Assembly,去掉这两项部署（不需要）
最终，如果没有的需要手动填上
maven项目报错
没有找到javax.servlet.http.HttpServlet 的jar包
我们一会在pom.xml中加入即可
-
修改pom.xml 加入依赖，最终如下
<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>4.0.0modelVersion> <groupId>com.oraclegroupId> <artifactId>ssm-mavenartifactId> <packaging>warpackaging> <version>0.0.1-SNAPSHOTversion> <name>ssm-maven Maven Webappname> <url>http://maven.apache.orgurl> <properties> <spring.version>4.3.8.RELEASEspring.version> properties> <dependencies> <dependency> <groupId>javax.servletgroupId> <artifactId>javax.servlet-apiartifactId> <version>3.1.0version> <scope>providedscope> dependency> <dependency> <groupId>javax.servlet.jspgroupId> <artifactId>javax.servlet.jsp-apiartifactId> <version>2.3.1version> <scope>providedscope> dependency> <dependency> <groupId>javax.servletgroupId> <artifactId>jstlartifactId> <version>1.2version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-coreartifactId> <version>${spring.version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-aopartifactId> <version>${spring.version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-webartifactId> <version>${spring.version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-webmvcartifactId> <version>${spring.version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-jdbcartifactId> <version>${spring.version}version> dependency> <dependency> <groupId>org.springframeworkgroupId> <artifactId>spring-txartifactId> <version>${spring.version}version> dependency> <dependency> <groupId>org.aspectjgroupId> <artifactId>aspectjrtartifactId> <version>1.8.0version> dependency> <dependency> <groupId>org.aspectjgroupId> <artifactId>aspectjweaverartifactId> <version>1.8.0version> dependency> <dependency> <groupId>org.mybatisgroupId> <artifactId>mybatisartifactId> <version>3.3.0version> dependency> <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> <version>5.1.26version> dependency> <dependency> <groupId>com.alibabagroupId> <artifactId>druidartifactId> <version>1.0.20version> dependency> <dependency> <groupId>org.mybatisgroupId> <artifactId>mybatis-springartifactId> <version>1.2.3version> dependency> <dependency> <groupId>log4jgroupId> <artifactId>log4jartifactId> <version>1.2.17version> dependency> <dependency> <groupId>org.slf4jgroupId> <artifactId>slf4j-apiartifactId> <version>1.7.21version> dependency> <dependency> <groupId>junitgroupId> <artifactId>junitartifactId> <version>3.8.1version> <scope>testscope> dependency> <dependency> <groupId>commons-dbcpgroupId> <artifactId>commons-dbcpartifactId> <version>1.2.2version> dependency> <dependency> <groupId>commons-poolgroupId> <artifactId>commons-poolartifactId> <version>1.3version> dependency> dependencies> <build> <finalName>ssm-mavenfinalName> build> project> -
建立如下包结构
配置文件放入 src/main/resources
分别是
- jdbc.properties
- log4j.properties
- spring-application.xml
- spring-datasource.xml
- spring-mvc.xml
#jdbc.properties
jdbc_driver=com.mysql.jdbc.Driver
jdbc_url=jdbc:mysql://localhost:3306/mavenTest?useUnicode=true&characterEncoding=UTF-8
jdbc_user=root
jdbc_password=123456
#log4j.properties
#OFF FATAL ERROR WARN INFO DEBUG ALL
log4j.rootLogger=DEBUG,stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%p]%-d{yyyy-MM-dd HH\:mm\:ss}[%c\:%L] %m%n
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd">
<context:component-scan base-package="com.oracle.model.service"/>
beans>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd
">
<context:property-placeholder location="classpath:jdbc.properties" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc_driver}"/>
<property name="url" value="${jdbc_url}"/>
<property name="username" value="${jdbc_user}"/>
<property name="password" value="${jdbc_password}"/>
bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" >
<property name="dataSource" ref="dataSource" >property>
<property name="mapperLocations" value="classpath:com/oracle/entity/*Mapper.xml" />
bean>
<mybatis:scan base-package="com.oracle.model.dao" />
beans>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<mvc:annotation-driven/>
<context:component-scan base-package="com.oracle.controller"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/pages/" p:suffix=".jsp"/>
beans>
- 在web.xml中配置springmvc（src/main/webapp/WEB-INF/下，在工程里Deploy Resources也映射了）
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<display-name>sxnd-ssmdisplay-name>
<welcome-file-list>
<welcome-file>index.jspwelcome-file>
welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-application.xml,classpath:spring-datasource.xmlparam-value>
context-param>
<servlet>
<servlet-name>springMvcservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-mvc.xmlparam-value>
init-param>
servlet>
<servlet-mapping>
<servlet-name>springMvcservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
web-app>
到这里，ssm环境便搭建完毕
下面测试进行简单测试
在com.oracle.controller下建立HelloWorldController，并且注解@Controller，@RequestMapping(“hello”)
写一个方法注解@RequestMapping(“world”)，方法内返回一个视图
package com.oracle.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
@RequestMapping("hello")
public class HelloWorldController {
@RequestMapping("world")
public ModelAndView helloworld() {
ModelAndView view = new ModelAndView("HelloWorld");
return view;
}
}
我们访问 xxxx/hello/world,就会返回一个HelloWorld视图，在spring-mvc中配置了视图的前缀为"/pages/",后缀为".jsp"，所以实际路径是 从网站根目录开始 /pages/HelloWorld.jsp ，我们在HelloWorld中输出一个 你好。
此次的过程为 ： 视图发起请求 -》到控制器 -》 控制器返回一个视图
-
运行项目
访问
http://localhost:8080/ssm-maven/hello/world
参考链接
https://blog.csdn.net/kingyxfly/article/details/78942439
https://www.jianshu.com/p/f3c582edca2b
https://blog.csdn.net/qq_39530754/article/details/82561985
https://blog.51cto.com/85608547/2161548
https://blog.csdn.net/Romantic_321/article/details/80752331
https://blog.csdn.net/u010134382/article/details/84745304