maven 学习笔记4 ，通过maven 完成ssm项目拆分

原创 于 2019-02-11 22:39:27 发布 · 599 阅读 · 3 ·
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文章标签：

#maven #ssm

本文详细介绍了如何使用Maven构建SpringMVC与MyBatis整合的项目结构，包括父工程、web工程、服务层、DAO层及实体模块的搭建过程，配置了依赖项、数据源、Session工厂及视图解析器，并提供了业务代码和服务实现的示例。

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文章目录

项目结构

父工程,maven_parent,pom
—web工程,maven_controller,jar
—服务层工程,maven_service,jar
—dao层工程,maven_dao,jar
—实体模块，maven_entity,jar

父工程

pom文件

<properties>
 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 <!-- spring版本号 -->
 <spring.version>5.0.8.RELEASE</spring.version>
 <!-- mybatis版本号 -->
 <mybatis.version>3.4.5</mybatis.version>
 <mybatis-spring.version>1.3.1</mybatis-spring.version>
 <mysql-connection-version>5.1.9</mysql-connection-version>
 <jackson-version>2.9.4</jackson-version>
</properties>

<dependencyManagement>
<dependencies>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-context</artifactId>
     <version>${spring.version}</version>
 </dependency>
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-web</artifactId>
     <version>${spring.version}</version>
 </dependency>
 <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-webmvc</artifactId>
     <version>${spring.version}</version>
 </dependency>
<dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-tx</artifactId>
     <version>${spring.version}</version>
 </dependency> 
 <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
 <groupId>org.springframework</groupId>
 <artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
 <dependency>
 <groupId>mysql</groupId>
 <artifactId>mysql-connector-java</artifactId>
 <version>${mysql-connection-version}</version>
</dependency>

<dependency>
 <groupId>org.mybatis</groupId>
 <artifactId>mybatis-spring</artifactId>
 <version>${mybatis-spring.version}</version>
</dependency>
<dependency>
 <groupId>org.mybatis</groupId>
 <artifactId>mybatis</artifactId>
 <version>${mybatis.version}</version>
</dependency>


<dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-databind</artifactId>
 <version>${jackson-version}</version>
</dependency>
<dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-core</artifactId>
 <version>${jackson-version}</version>
</dependency>
<dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-annotations</artifactId>
 <version>${jackson-version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
<dependency>
 <groupId>commons-dbcp</groupId>
 <artifactId>commons-dbcp</artifactId>
 <version>1.4</version>
</dependency>

 <dependency>
   <groupId>junit</groupId>
   <artifactId>junit</artifactId>
   <version>3.8.1</version>
   <scope>test</scope>
 </dependency>
<dependency>
 <groupId>jstl</groupId>
 <artifactId>jstl</artifactId>
 <version>1.2</version>
</dependency>
 	
 	
<dependency>
 <groupId>org.projectlombok</groupId>
 <artifactId>lombok</artifactId>
 <version>1.16.20</version>
 <scope>provided</scope>
</dependency>
  </dependencies>
  </dependencyManagement>	
    <build>
   <plugins>
       <plugin>
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.6.0</version>
         <configuration>
           <source>1.8</source>
           <target>1.8</target>
         </configuration>
       </plugin>
     </plugins>
</build>

依次创建工程模块

选中父工程 右键
备注：web工程 maven_controller 打包方式选择web 其他工程选择jar
new ->maven module
在这里插入图片描述
在这里插入图片描述

web工程

pom文件

<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>com.sb</groupId>
  <artifactId>m_parent</artifactId>
  <version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>m_controller</artifactId>
<packaging>war</packaging>
<dependencies>
 <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
  </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
  </dependency>
  <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
  </dependency>
<dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
  </dependency> 
  <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-jdbc</artifactId>
</dependency>



<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-databind</artifactId>
</dependency>
<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-core</artifactId>
</dependency>
<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-annotations</artifactId>
</dependency>
  <dependency>
   <groupId>com.sb</groupId>
    <artifactId>m_service</artifactId>
      <version>0.0.1-SNAPSHOT</version>
  </dependency>
</dependencies>
</project>

web.xml

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
<display-name>first_springmvc</display-name>
<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>
<!-- 增加 springmvc的 核心控制器 -->
<servlet>
	<servlet-name>springmvc</servlet-name>
	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	<init-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:springmvc.xml</param-value>
	</init-param>
</servlet>
<servlet-mapping>
	<servlet-name>springmvc</servlet-name>
	<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>

spring 配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:aop="http://www.springframework.org/schema/aop"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:tx="http://www.springframework.org/schema/tx"
  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/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
  	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
  	http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
  	http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
  	
  <!-- 扫描 基础包，
  	找注解 @controller @service @Re...
   -->
  <context:component-scan base-package="com.mvc.controller"></context:component-scan>
  
  <!--@ResponseBody  -->
  <mvc:annotation-driven/>
  <!-- 视图解析器 
  prefix：前缀
  suffix：后缀
  -->
  <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  	<property name="prefix" value="/"/>
  	<property name="suffix" value=".jsp"/>
  </bean>
  
  
  
  <!--spring 集成mybatis的配置 -->
  	<!-- 引入dbconfig.properties属性文件 -->
  <context:property-placeholder location="classpath:jdbc.properties" />
  
  	<!-- 创建数据源（数据库连接池使用dbcp） -->
  <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
  	<property name="driverClassName" value="${jdbc.driver}"></property>
  	<property name="url" value="${jdbc.url}"></property>
  	<property name="username" value="${jdbc.username}"></property>
  	<property name="password" value="${jdbc.password}"></property>
  </bean>

  <!-- 创建session -->
	<bean class="org.mybatis.spring.SqlSessionFactoryBean">
  	<property name="dataSource" ref="dataSource"></property>
  <!-- 	<property name="configLocation" value="classpath:config/mybatisConfig.xml" /> -->
  </bean> 
  
  <!-- 扫描myBatis操作数据库的接口 -->
  <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  	<property name="basePackage" value="com.mvc.dao"></property>
  </bean> 
  
  
  </beans>

业务代码

@Controller
public class PageController {
  @Autowired
  PageDao pd;
  @RequestMapping("list")
  public String toPage(Model model) {
  	model.addAttribute("name", "zhangsan");
  	return "list";
  }
  @ResponseBody
  @RequestMapping("student_list")
  public List<Student> student_list(Model model){
  	return pd.slist();
  }
}

服务层工程

pom文件配置

<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>com.sb</groupId>
 <artifactId>m_parent</artifactId>
 <version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>m_service</artifactId>

<dependencies>
 <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>spring-context</artifactId>
 </dependency>
 <dependency>
  <groupId>com.sb</groupId>
 <artifactId>m_dao</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 </dependency>
</dependencies>
</project>

代码

@Service
public class PageServiceImpl implements PageService {

 @Autowired
 PageDao pd ;
 
 public List<Student> users(){
 	return pd.slist();
 }
}

dao层工程

pom文件

<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>com.sb</groupId>
    <artifactId>m_parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>m_dao</artifactId>
  <dependencies>
     <dependency>
  	<groupId>com.sb</groupId>
    <artifactId>m_beans</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </dependency>
    <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
</dependency>

   <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
</dependency>
   <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
<dependency>
    <groupId>commons-dbcp</groupId>
    <artifactId>commons-dbcp</artifactId>
</dependency>
  
  </dependencies>
</project>

代码

public interface PageDao {

	@Select("select * from t_student")
	public List<Student> slist();
}

实体模块

pom文件

<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>com.sb</groupId>
 <artifactId>m_parent</artifactId>
 <version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>m_beans</artifactId>
</project>

代码

public class Student {
	
	String id;
	String name;
	String age;
	String sex;

测试项目

把项目打包安装到本地仓库

选择父项目
Run as -->maven install
在这里插入图片描述

把web项目加入到tomcat中 运行

在这里插入图片描述

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