SSM环境的搭建（SpringMVC+Spring+Mybatis）

野性酷女 2022-06-05 04:50 120阅读 0赞

**SSM环境的搭建（SpringMVC+Spring+Mybatis）**

本人搭建使用的是maven项目，如果你不是使用maven项目，那你只需在你的WEB项目中加入在pom.xml所需要的jar包即可。

**第一大步：先添加spring框架**  
  
  
1、准备spring依赖加入到pom.xml中（同时将javaweb的依赖servletAPI也加入）

<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.sz.hcq.pro</groupId>
    	<artifactId>SSM_01</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<packaging>war</packaging>
    	<dependencies>
    		
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>servlet-api</artifactId>
    			<version>2.5</version>
    		</dependency>
    		
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-context</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-core</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-beans</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-web</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-webmvc</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-aop</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-orm</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-tx</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-context-support</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-expression</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    	</dependencies>
    </project>

2、创建spring配置文件app.xml（这里我们采用了注解的配置方式）  
添加注解支持和注解扫描

3、在pom.xml中引入数据库依赖和数据源依赖(这里使用mysql数据库，数据源为dbcp)

<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    			<version>5.0.8</version>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>commons-dbcp</groupId>
    			<artifactId>commons-dbcp</artifactId>
    			<version>1.4</version>
    		</dependency>
    		<dependency>
    			<groupId>commons-pool</groupId>
    			<artifactId>commons-pool</artifactId>
    			<version>1.6</version>
    		</dependency>

4、创建myconn.properties（数据库连接的相关配置）  
这里我们将数据库的配置提取出来，为了方便以后的数据库的更换维护。

conn.driver=org.gjt.mm.mysql.Driver
    conn.url=jdbc:mysql://localhost:3306/db
    conn.user=root
    conn.pwd=root

5、在app.xml中配置数据源和sqlSession工厂（引入myconn.properties）

<context:property-placeholder location="classpath:myconn.properties" />
    
    
    	
    	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    		<property name="driverClassName" value="${conn.driver}"></property>
    		<property name="url" value="${conn.url}"></property>
    		<property name="username" value="${conn.user}"></property>
    		<property name="password" value="${conn.pwd}"></property>
    	</bean>
    	
    	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    		<property name="dataSource" ref="dataSource"></property>
    		<property name="configLocation" value="classpath:mybatis_cfg.xml"></property>
    	</bean>

6、在web.xml 文件中配置上下文参数和容器启动监听器（为了让服务器启动时spring能帮我们把对象创建出来）

<context-param>
    		<param-name>contextConfigLocation</param-name>
    		<param-value>classpath:app.xml</param-value>
    	</context-param>
    	
    	<listener>
    		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>

**第二大步：添加mybatis框架**  
  
  
7、在pom.xml中引入mybatis依赖（注：spring没有支持mybatis，所以我们要在pom.xml中添加spring对mybatis的支持 mybatis-spring ）

<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis</artifactId>
    			<version>3.2.3</version>
    		</dependency>
    
    
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis-spring</artifactId>
    			<version>1.2.2</version>
    		</dependency>

8、准备mybatis配置文件mybatis\_cfg.xml  
  
  
9、准备实体类和实体映射文件  
这里本人准备的实体类为Users,实体映射文件为Users.xml  
  
  
10、在mybatis\_cfg.xml中添加实体类映射文件

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
    <configuration>
    	
    	<mappers>
    		<mapper resource="cn/sz/hcq/pojo/Users.xml" />
    	</mappers>
    </configuration>

**第三大步：添加springmvc框架**  
  
  
11、由于我们在添加spring依赖的时候已经添加了springmvc的依赖spring-webmvc，所以这里不需要添加依赖  
  
  
12、在app.xml文件中配置springmvc的注解驱动和视图处理器

<mvc:annotation-driven></mvc:annotation-driven>
    	
    	<bean id="is"
    		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<property name="prefix" value="/"></property>
    		<property name="suffix" value=".jsp"></property>
    	</bean>

13、在web.xml 配置转发器（我们将spring的配置和springMVC的配置放在了同一个配置文件app.xml,这里我们需要指定初始化参数为app.xml）

<servlet>
    		<servlet-name>dispatcherServlet</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>classpath:app.xml</param-value>
    		</init-param>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>dispatcherServlet</servlet-name>
    		<url-pattern>/</url-pattern>
    		
    	</servlet-mapping>

上面的步骤就配置完成了。  
  
**下面是本人演示项目的项目结构和相关代码：**

![Center][]

下面是相关代码：

1、we.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"
    	id="WebApp_ID" version="2.5">
    	<welcome-file-list>
    		<welcome-file>index.jsp</welcome-file>
    	</welcome-file-list>
    
    	
    	<context-param>
    		<param-name>contextConfigLocation</param-name>
    		<param-value>classpath:app.xml</param-value>
    	</context-param>
    	
    	<listener>
    		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    	</listener>
    
    
    	
    	<servlet>
    		<servlet-name>dispatcherServlet</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>classpath:app.xml</param-value>
    		</init-param>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>dispatcherServlet</servlet-name>
    		<url-pattern>/</url-pattern>
    		
    	</servlet-mapping>
    </web-app>

2、pom.xml （maven项目依赖配置文件）

<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>
    	<groupId>cn.sz.hcq.pro</groupId>
    	<artifactId>SSM_01</artifactId>
    	<version>0.0.1-SNAPSHOT</version>
    	<packaging>war</packaging>
    	<dependencies>
    		
    		<dependency>
    			<groupId>javax.servlet</groupId>
    			<artifactId>servlet-api</artifactId>
    			<version>2.5</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>mysql</groupId>
    			<artifactId>mysql-connector-java</artifactId>
    			<version>5.0.8</version>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>commons-dbcp</groupId>
    			<artifactId>commons-dbcp</artifactId>
    			<version>1.4</version>
    		</dependency>
    		<dependency>
    			<groupId>commons-pool</groupId>
    			<artifactId>commons-pool</artifactId>
    			<version>1.6</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-context</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-core</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-beans</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-web</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-webmvc</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-aop</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-orm</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-tx</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-context-support</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    		<dependency>
    			<groupId>org.springframework</groupId>
    			<artifactId>spring-expression</artifactId>
    			<version>4.3.10.RELEASE</version>
    		</dependency>
    
    		
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis</artifactId>
    			<version>3.2.3</version>
    		</dependency>
    
    		<dependency>
    			<groupId>org.mybatis</groupId>
    			<artifactId>mybatis-spring</artifactId>
    			<version>1.2.2</version>
    		</dependency>
    	</dependencies>
    </project>

3、app.xml （spring和springmvc配置文件）

<?xml version="1.0" encoding="UTF-8"?>
    
    <beans default-autowire="byName"
    	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:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p"
    	xmlns:tx="http://www.springframework.org/schema/tx"
    	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
    		http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
    		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd
    		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
    		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">
    
    	
    	<context:annotation-config></context:annotation-config>
    	
    	<context:component-scan base-package="cn.sz.hcq"></context:component-scan>
    
    	
    	
    	<context:property-placeholder location="classpath:myconn.properties" />
    	
    
    	
    	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
    		<property name="driverClassName" value="${conn.driver}"></property>
    		<property name="url" value="${conn.url}"></property>
    		<property name="username" value="${conn.user}"></property>
    		<property name="password" value="${conn.pwd}"></property>
    	</bean>
    
    	
    	<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
    		<property name="dataSource" ref="dataSource"></property>
    		<property name="configLocation" value="classpath:mybatis_cfg.xml"></property>
    	</bean>
    
    	
    	<mvc:annotation-driven></mvc:annotation-driven>
    	
    	<bean id="is"
    		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<property name="prefix" value="/"></property>
    		<property name="suffix" value=".jsp"></property>
    	</bean>
    </beans>

4、mybatis\_cfg.xml （mybatis配置文件）

5、myconn.properties （数据库连接配置）

conn.driver=org.gjt.mm.mysql.Driver
    conn.url=jdbc:mysql://localhost:3306/db
    conn.user=root
    conn.pwd=root

6、Users.java （实体类）

package cn.sz.hcq.pojo;
    
    import java.io.Serializable;
    
    public class Users implements Serializable {
    	private Integer userid;
    	private String loginname;
    	private String loginpwd;
    	private String realname;
    
    	public Integer getUserid() {
    		return userid;
    	}
    
    	public void setUserid(Integer userid) {
    		this.userid = userid;
    	}
    
    	public String getLoginname() {
    		return loginname;
    	}
    
    	public void setLoginname(String loginname) {
    		this.loginname = loginname;
    	}
    
    	public String getLoginpwd() {
    		return loginpwd;
    	}
    
    	public void setLoginpwd(String loginpwd) {
    		this.loginpwd = loginpwd;
    	}
    
    	public String getRealname() {
    		return realname;
    	}
    
    	public void setRealname(String realname) {
    		this.realname = realname;
    	}
    
    }

7、Users.xml （实体类映射文件）

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
    <mapper namespace="cn.sz.hcq.pojo.Users">
    
    
    </mapper>

8、index.jsp 测试页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    	pageEncoding="UTF-8"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title></title>
    </head>
    <body>基于maven搭建的SSM环境搭建成功
    </body>
    </html>

经过上面的步骤我们的SSM环境就搭建完成了，我们在webapp下面准备一个index.jsp测试页面，将项目启动起来，在游览器中输入http://localhost:8080/SSM\_01/index.jsp，如果出现以下的界面说明SSM框架整合成功。

![Center 1][]

[Center]: /images/20220605/71d31f4a3e9642d98e36e597ef7866b0.png
[Center 1]: /images/20220605/6363704a0dfc4a9ab61d701e77671a7a.png