本文介绍了从零开始SSM搭建步骤，分享给大家，有助于更好的搭建ssm，具体如下：
第一章：搭建整合环境
1. 搭建整合环境
整合说明：SSM整合可以使用多种方式，咱们会选择XML + 注解的方式
整合的思路
2.1. 先搭建整合的环境
2.2. 先把Spring的配置搭建完成
2.3. 再使用Spring整合SpringMVC框架
2.4. 最后使用Spring整合MyBatis框架
创建数据库和表结构
3.1创建数据库
create database ssm; create table account( id int primary key auto_increment, name varchar(20), money double );
4.创建maven工程
<properties>
<spring.version>5.0.2.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<mysql.version>5.1.6</mysql.version>
<mybatis.version>3.4.5</mybatis.version>
</properties>
<dependencies>
<!--spring-->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency><dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${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-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!--log start-->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.0</version>
</dependency>
<!--连接池-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.10</version></dependency>
</dependencies>
<build>
<finalName>ssm</finalName>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
<showWarnings>true</showWarnings>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
编写实体类，在ssm_domain项目中编写
package com.qcby.entity;
import java.io.Serializable;
public class Account implements Serializable {
// 主键
private int id;
// 账户名称
private String name;
// 账号的金额
private Double money;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Double getMoney() {
return money;
}
public void setMoney(Double money) {
this.money = money;
}
@Override
public String toString() {
return "Account{" +
"id=" + id +
", name='" + name + '\'' +
", money=" + money +
'}';
}
}
编写service接口和实现类
package com.qcby.service;
import com.qcby.entity.Account;
import java.util.List;
public interface AccountService {
//查询所有
public List<Account> findAll();
}
package com.qcby.service;
import com.qcby.entity.Account;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class AccountServiceImpl implements AccountService {
//查询所有
@Override
public List<Account> findAll() {
System.out.println("业务层：查询所有");
return null;
}
}
第二章：Spring框架代码的编写
1. 搭建和测试Spring的开发环境
在ssm_web项目中创建spring.xml的配置文件，编写具体的配置信息。
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!--开启注解扫描，要扫描的是service-->
<context:component-scan base-package="com.qcby.service"/>
</beans>
在ssm_web项目中编写测试方法，进行测试
package com.qcby.demo;
import com.qcby.service.AccountService;
import org.junit.Test;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class TestSpring {
@Test
public void run(){
ClassPathXmlApplicationContext ac = new ClassPathXmlApplicationContext("classpath:spring.xml");
AccountService service = ac.getBean(AccountService.class);
service.findAll();
}
}
第三章：Spring整合SpringMVC框架
1. 搭建和测试SpringMVC的开发环境
在web.xml中配置DispatcherServlet前端控制器
<!--配置前端控制器-->
<servlet>
<servlet-name>DispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--加载springmvc.xml配置文件-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!-- 启动加载-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>DispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
在web.xml中配置DispatcherServlet过滤器解决中文乱码
<!--解决post请求中文乱码的过滤器-->
<filter>
<filter-name>CharacterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
创建springmvc.xml的配置文件，编写配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!--扫描controller的注解，别的不扫描-->
<context:component-scan base-package="com.qcby.controller"/>
<!-- 配置视图解析器-->
<bean id="ViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--JSP文件所在的目录-->
<property name="prefix" value="/pages/"/>
<!--文件的后缀名-->
<property name="suffix" value=".jsp"/>
</bean>
<!--设置静态资源不过滤-->
<mvc:resources mapping="/source/css/**" location="/source/css/"/>
<mvc:resources mapping="/source/js/**" location="/source/js/"/>
<mvc:resources mapping="/source/images/**" location="/source/images/"/>
<!--开启springmvc-->
<mvc:annotation-driven/>
</beans>
测试SpringMVC的框架搭建是否成功
4.1. 编写index.jsp和list.jsp编写，超链接
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<a href="/account/findAll" rel="external nofollow" rel="external nofollow" >查询所有</a>
</body>
</html>
4.2. 创建AccountController类，编写方法，进行测试
package com.qcby.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
@RequestMapping("/account")
public class AccountController {
/**
* 查询所有
* @return
*/
@RequestMapping("/findAll")
public ModelAndView findAll(){
System.out.println("表现层：查询所有");
ModelAndView mv = new ModelAndView();
mv.setViewName("suc");
return mv;
}
}
2. Spring整合SpringMVC的框架
目的：在controller中能成功的调用service对象中的方法。
在项目启动的时候，就去加载spring.xml的配置文件，在web.xml中配置
ContextLoaderListener监听器（该监听器只能加载WEB-INF目录下的applicationContext.xml的配置文
件，所以要配置全局的变量加载类路径下的配置文件）。
<!--配置Spring的监听器--> <display-name>Archetype Created Web Application</display-name> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--配置加载类路径的配置文件--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </context-param>
在controller中注入service对象，调用service对象的方法进行测试
package com.qcby.controller;
import com.qcby.entity.Account;
import com.qcby.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import java.util.List;
@Controller
@RequestMapping("/account")
public class AccountController {
//依赖注入
@Autowired
private AccountService accountService;
/**
* 查询所有
* @return
*/
@RequestMapping("/findAll")
public ModelAndView findAll(){
System.out.println("表现层：查询所有");
//调用service的方法
List<Account> list = accountService.findAll();
ModelAndView mv = new ModelAndView();
mv.setViewName("suc");
return mv;
}
}
第四章：Spring整合MyBatis框架
1. 搭建和测试MyBatis的环境
在web项目中编写SqlMapConfig.xml的配置文件，编写核心配置文件
<?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>
<properties resource="jdbc.properties"></properties>
<!--定义别名-->
<typeAliases>
<!--把com.qcby.entity.User使用user别名来显示，别名user User USER都可以，默认是忽略大写的-->
<!--<typeAlias type="com.qcby.entity.User" alias="user"/>-->
<!--针对com.qcby.entity包下的所有的类，都可以使用当前的类名做为别名-->
<package name="com.qcby.entity"/>
</typeAliases>
<environments default="mysql">
<environment id="mysql">
<!--配置事务的类型，使用本地事务策略-->
<transactionManager type="JDBC"></transactionManager>
<!--是否使用连接池 POOLED表示使用链接池，UNPOOLED表示不使用连接池-->
<dataSource type="POOLED">
<property name="driver" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="mapper/AccountDao.xml"></mapper>
</mappers>
</configuration>
AccountDao接口
package com.qcby.dao;
import com.qcby.entity.Account;
import java.util.List;
public interface AccountDao {
//查询所有
public List<Account> findAll();
}
编写AccountDao.xml
<?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="com.qcby.dao.AccountDao">
<select id="findAll" resultType="account">
select * from account
</select>
</mapper>
编写测试的方法
package com.qcby.demo;
import com.qcby.dao.AccountDao;
import com.qcby.entity.Account;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.junit.Test;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
public class TestMybatis {
@Test
public void run() throws IOException {
InputStream in = Resources.getResourceAsStream("mybatis.xml");
SqlSessionFactory factory = new SqlSessionFactoryBuilder().build(in);
SqlSession session = factory.openSession();
AccountDao mapper = session.getMapper(AccountDao.class);
List<Account> list = mapper.findAll();
for (Account account : list) {
System.out.println(account);
}
//关闭资源
session.close();
in.close();
}
}
2. Spring整合MyBatis框架
目的：把SqlMapConfig.xml配置文件中的内容配置到applicationContext.xml配置文件中
在service中注入dao对象，进行测试
<?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:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 加载数据库配置属性文件-->
<context:property-placeholder location="classpath:jdbc.properties"/>
<!--开启注解扫描，要扫描的是service-->
<context:component-scan base-package="com.qcby.service"/>
<!--配置数据库连接池-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!--Spring整合MyBatis框架，SqlSessionFactoryBean创建工厂对象-->
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入数据库连接池 -->
<property name="dataSource" ref="dataSource"/>
<!-- 扫描entity包 使用别名 -->
<property name="typeAliasesPackage" value="com.qcby.entity" />
<!-- 扫描sql配置文件:mapper需要的xml文件 -->
<property name="mapperLocations" value="classpath:mapper/*.xml"/>
</bean>
<!--配置扫描Dao接口包，动态实现Dao接口，注入到ioc容器中-->
<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.qcby.dao"/>
</bean>
</beans>
service代码如下
package com.qcby.service;
import com.qcby.dao.AccountDao;
import com.qcby.entity.Account;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountDao accountDao;
//查询所有
@Override
public List<Account> findAll() {
System.out.println("业务层：查询所有");
List<Account> list = accountDao.findAll();
return list;
}
}
controller代码如下
package com.qcby.controller;
import com.qcby.entity.Account;
import com.qcby.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import java.util.List;
@Controller
@RequestMapping("/account")
public class AccountController {
//依赖注入
@Autowired
private AccountService accountService;
/**
* 查询所有
* @return
*/
@RequestMapping("/findAll")
public ModelAndView findAll(){
System.out.println("表现层：查询所有");
//调用service的方法
List<Account> list = accountService.findAll();
for (Account account : list) {
System.out.println(account);
}
ModelAndView mv = new ModelAndView();
mv.setViewName("suc");
return mv;
}
}
spring.xml配置声明式事务管理
<!-- 配置声明式事务管理-->
<!--平台事务管理器-->
<bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!--配置事务的通知-->
<tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager">
<tx:attributes>
<tx:method name="find*" read-only="true"/>
<tx:method name="*" />
</tx:attributes>
</tx:advice>
<!--配置事务的增强-->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(public * com.qcby.service.*ServiceImpl.*(..))"/>
</aop:config>
表单代码
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<a href="/account/findAll" rel="external nofollow" rel="external nofollow" >查询所有</a>
<form action="/account/save" method="post">
姓名：<input type="text" name="name" /><br/>
金额：<input type="text" name="money" /><br/>
<input type="submit" value="保存" />
</form>
</body>
</html>
controller代码
package com.qcby.controller;
import com.qcby.entity.Account;
import com.qcby.service.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import java.util.List;
@Controller
@RequestMapping("/account")
public class AccountController {
//依赖注入
@Autowired
private AccountService accountService;
/**
* 查询所有
* @return
*/
@RequestMapping("/findAll")
public ModelAndView findAll(){
System.out.println("表现层：查询所有");
//调用service的方法
List<Account> list = accountService.findAll();
for (Account account : list) {
System.out.println(account);
}
ModelAndView mv = new ModelAndView();
mv.setViewName("suc");
return mv;
}
@RequestMapping("/save")
public String save(Account account){
//Service的保存方法
accountService.save(account);
return "suc";
}
}
service接口和实现类代码
package com.qcby.service;
import com.qcby.entity.Account;
import java.util.List;
public interface AccountService {
//查询所有
public List<Account> findAll();
//保存
void save(Account account);
}
package com.qcby.service;
import com.qcby.dao.AccountDao;
import com.qcby.entity.Account;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountDao accountDao;
//查询所有
@Override
public List<Account> findAll() {
System.out.println("业务层：查询所有");
List<Account> list = accountDao.findAll();
return list;
}
@Override
public void save(Account account) {
accountDao.save(account);
}
}
dao代码
package com.qcby.dao;
import com.qcby.entity.Account;
import java.util.List;
public interface AccountDao {
//查询所有
public List<Account> findAll();
//保存
void save(Account account);
}
dao.xml代码
<?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="com.qcby.dao.AccountDao">
<select id="findAll" resultType="account">
select * from account
</select>
<insert id="save" parameterType="account">
insert into account (name,money) values(#{name},#{money})
</insert>
</mapper>
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