SpringSSM整合

静止了所有花开2024-11-17 11:13

SSM整合

（一） SSM框架整合思路的介绍和分析

介绍

**SSM（Spring+SpringMVC+MyBatis）**整合，就是三个框架协同开发。

Spring整合Mybatis 就是将Mybatis核心配置文件当中数据源的配置，事务的管理，以及工厂的配置，Mapper接口的实现类等交给Spring管理。

Spring整合SpringMVC，就是在web.xml当中添加监听器，当服务器启动，监听器触发，监听器执行了Spring的核心配置文件，核心配置文件被加载。

整合核心步骤：

Spring 基础框架单独运行

SpringMVC 框架单独运行

Spring 整合SpringMVC 框架

Spring 整合Mybatis 框架

测试SSM 整合结果

（二）准备SSM整合环境

1 创建数据库和表结构

2 创建 Maven 工程

3 导入核心坐标

XML 复制代码 
<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>4.0.0</modelVersion>
  <groupId>com.jn</groupId>
  <artifactId>SpringSSM</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>SpringSSM Maven Webapp</name>
  <url>http://maven.apache.org</url>

  <dependencies>
<!--junit-->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
        <version>4.13.2</version>
        <scope>test</scope>
    </dependency>
<!--mysql驱动-->
      <!--mysql-->
      <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>8.0.29</version>
      </dependency>
<!--jdbc-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>5.3.18</version>
    </dependency>
<!--c3p0的连接依赖-->
    <dependency>
      <groupId>com.mchange</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.5.4</version>
    </dependency>
<!--mybatis核心-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.6</version>
    </dependency>
<!--日志-->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>
<!--分页插件-->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>5.3.2</version>
    </dependency>

<!--SpringIOC-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>5.3.18</version>
    </dependency>
<!--aspect-->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.9.7</version>
    </dependency>
<!--springmvc-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.3.18</version>
    </dependency>
<!--jackson-->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.15.2</version>
    </dependency>
<!--servlet-->
      <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>javax.servlet-api</artifactId>
          <version>4.0.1</version>
      </dependency>
<!--jsp-api-->
      <dependency>
          <groupId>javax.servlet.jsp</groupId>
          <artifactId>jsp-api</artifactId>
          <version>2.2</version>
      </dependency>
<!--jstl-->
      <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>jstl</artifactId>
          <version>1.2</version>
      </dependency>
<!--spring整合mybatis-->
      <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>
          <version>2.0.6</version>
      </dependency>
<!--spring整合Junit-->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-test</artifactId>
          <version>5.3.18</version>
      </dependency>
      <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>RELEASE</version>
          <scope>test</scope>
      </dependency>
  </dependencies>
    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
    </build>
</project>

4 编写数据模型实体类

java 复制代码 
package com.jn.entity;

import java.io.Serializable;

public class Role implements Serializable {
    private Integer roleid;
    private String rolename;
    private String roledes;

    public Integer getRoleid() {
        return roleid;
    }

    public void setRoleid(Integer roleid) {
        this.roleid = roleid;
    }

    public String getRolename() {
        return rolename;
    }

    public void setRolename(String rolename) {
        this.rolename = rolename;
    }

    public String getRoledes() {
        return roledes;
    }

    public void setRoledes(String roledes) {
        this.roledes = roledes;
    }

    @Override
    public String toString() {
        return "Role{" +
                "roleid=" + roleid +
                ", rolename='" + rolename + '\'' +
                ", roledes='" + roledes + '\'' +
                '}';
    }
}

5 编写持久层接口

java 复制代码 
package com.jn.entity;

import java.util.List;

public interface RoleMapper {
    Role findById(Integer id);
    List<Role> findAll();
    void insert(Role role);
    void update(Role role);
    void delete(Integer id);
}

6 编写持久层接口对应的sql配置文件

XML 复制代码 
<?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.jn.mapper.RoleMapper">

    <resultMap id="BaseResultMap" type="com.jn.entity.Role">
        <id column="roleid" property="roleid" jdbcType="INTEGER"/>
        <result column="rolename" property="rolename" jdbcType="VARCHAR"/>
        <result column="roledes" property="roledes" jdbcType="VARCHAR"/>
    </resultMap>
    
    <select id="findById" parameterType="int" resultMap="BaseResultMap">
        select * from role where roleid = #{id}
    </select>
    
    <select id="findAll" resultMap="BaseResultMap">
        select * from role
    </select>
    
     <insert id="insert" parameterType="com.jn.entity.Role">
        insert into role(rolename,roledes) values(#{rolename},#{roledes})
      </insert>
    
     <update id="update" parameterType="com.jn.entity.Role">
        update role set rolename = #{rolename},roledes = #{roledes} where roleid = #{roleid}
      </update>
    
    <delete id="delete" parameterType="int">
        delete from role where roleid = #{id}
    </delete>

</mapper>

7 编写业务层接口

java 复制代码 
package com.jn.service;

import com.jn.entity.Role;

import java.util.List;

public interface RolrService {
    Role findById(Integer id);
    List<Role> findAll();
    void insert(Role role);
    void update(Role role);
    void delete(Integer id);

}

8 编写业务层接口实现类

java 复制代码 
package com.jn.service.impl;

import com.jn.entity.Role;
import com.jn.service.RolrService;

import java.util.List;

public class RoleServiceImpl implements RolrService {
    @Override
    public Role findById(Integer id) {
        return null;
    }

    @Override
    public List<Role> findAll() {
        return null;
    }

    @Override
    public void insert(Role role) {

    }

    @Override
    public void update(Role role) {

    }

    @Override
    public void delete(Integer id) {

    }
}

（三）SSM整合步骤

1、Spring 框架在 web 工程中独立运行

1.1 创建 Spring 配置文件applicationContext.xml并导入约束
XML 复制代码 
<?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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd">

<!--开启注解扫描包-->
    <!--创建容器时扫描的包-->
    <context:component-scan base-package="com.jn"></context:component-scan>

</beans>
1.2 使用注解配置业务层
java 复制代码 
package com.jn.service.impl;

import com.jn.entity.Role;
import com.jn.service.RolrService;
import org.springframework.stereotype.Service;

import java.util.List;
@Service("roleService")
public class RoleServiceImpl implements RolrService {
    @Override
    public Role findById(Integer id) {
        return null;
    }

    @Override
    public List<Role> findAll() {
        return null;
    }

    @Override
    public void insert(Role role) {

    }

    @Override
    public void update(Role role) {

    }

    @Override
    public void delete(Integer id) {

    }
}
1.3 测试 Spring 独立运行
java 复制代码 
package com.jn;
import com.jn.service.impl.RoleServiceImpl;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class MyTest {
    @Autowired
    private RoleServiceImpl roleService;
    @Test
    public void testIOC(){
        System.out.println(roleService);
    }
}

2、SpringMVC 在 web 工程中运行

2.1 在 web.xml 中配置核心控制器（DispatcherServlet）
XML 复制代码 
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
         http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <display-name>Archetype Created Web Application</display-name>

<!--前端控制器-->
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--加载springmvc的配置文件-->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvcConfig.xml</param-value>
    </init-param>
  </servlet>

  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

<!--整合Spring和SpringMVC-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>


  <!--配置post请求时的编码过滤器-->
  <filter>
    <filter-name>encodingFilter</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>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

</web-app>
2.2 编写 SpringMVC 的配置文件
XML 复制代码 
<?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:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/mvc
       https://www.springframework.org/schema/mvc/spring-mvc.xsd">

<!--配置注解扫描器-->
    <context:component-scan base-package="com.jn"></context:component-scan>

<!--视图解析器配置-->
    <bean  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

<!--配置json转换器-->
    <mvc:annotation-driven conversion-service="conversionService">
        <mvc:message-converters>
            <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
        </mvc:message-converters>
    </mvc:annotation-driven>

<!--配置类型转换器-->
    <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
    </bean>


</beans>
2.3 编写 Controller
java 复制代码 
package com.jn.controller;

import com.jn.entity.Role;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class RoleController {
    
    //测试SpringMVC配置是否成功
    @RequestMapping("testSpringMVC")
    @ResponseBody
    public Role testRole(){
        Role role = new Role();
        role.setRoleid(1);
        role.setRolename("admin");
        role.setRoledes("轻功水上漂");
        return role;
    }
}
2.4 编写index.jsp测试
XML 复制代码 
<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<html>
<body>
<h2>测试SpringMVC</h2>
<br>
<form action="testSpringMVC" method="post">
    <input type="text" name="id"><br>
    <input type="submit" value="点击测试">
</form>

</body>
</html>

3、整合 Spring 和 SpringMVC：web.xml中添加监听器

XML 复制代码 
<!--整合Spring和SpringMVC-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

4、Spring整合MyBatis配置

4.1 Spring 接管 MyBatis 的 Session 工厂
java 复制代码 
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatisdatabase100
jdbc.username=root
jdbc.password=123456
XML 复制代码 
<!--加载properties文件-->
    <context:property-placeholder location="classpath:dbconfig.properties"></context:property-placeholder>

<!--配置数据源-->
    <!-- 连接数据库的核心配置文件   以及数据源-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}" />
        <property name="jdbcUrl" value="${jdbc.url}" />
        <property name="user" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>

<!--Mybatis核心工厂对象-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <!--注入数据源-->
        <property name="dataSource" ref="dataSource"></property>
    <!--别名-->
        <property name="typeAliasesPackage" value="com.jn.entity"></property>
    <!--mapper文件位置-->
        <property name="mapperLocations" value="com/jn/mapper/RoleMapper.xml"></property>
        <!--进行分页插件的配置
        <property name="plugins">
                <array>
                </array>
            </property>  -->
    </bean>
4.2 配置自动扫描所有 Mapper 接口和文件
XML 复制代码 
<!--配置接口扫描的包-->
    <bean id="mapper" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.jn.mapper"></property>
    </bean>
4.3 配置 Spring 的事务
XML 复制代码 
 <!--配置平台管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!--注入数据源-->
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>

（四）测试 SSM 整合结果

1、编写测试jsp文件

XML 复制代码 
<%@ page language="java" contentType="text/html; charset=UTF-8" %>
<html>
<body>
<h2>测试SpringMVC</h2>
<br>
<form action="testSpringMVC" method="post">
    <input type="text" name="id"><br>
    <input type="submit" value="点击测试">
</form>

<h2>测试SSM整合结果</h2>
<h3>添加</h3>
    <form action="insert" method="post">
        Name:<input type="text" name="rolename"><br>
        Describe:<input type="text" name="roledes"><br>
        <input type="submit" value="点击添加">
    </form>

<h3>修改</h3>
<form action="update" method="post">
    Id:<input type="text" name="roleid"><br>
    Name:<input type="text" name="rolename"><br>
    Describe:<input type="text" name="roledes"><br>
    <input type="submit" value="点击修改">
</form>

<h3>删除</h3>
<form action="delete" method="post">
    Id:<input type="text" name="id"><br>
    <input type="submit" value="点击删除">
</form>

<h3>根据Id查询</h3>
<form action="findById" method="post">
    Id:<input type="text" name="id" value="输入id进行查询"><br>
    <input type="submit" value="点击查询">
</form>

<h3>查询所有</h3>
    <a href="findAll">点击查询所有</a>
</body>
</html>

2、修改控制器中的方法

java 复制代码 
package com.jn.controller;

import com.jn.entity.Role;
import com.jn.service.RolrService;
import com.jn.service.impl.RoleServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.List;

@Controller
public class RoleController {

    //测试SpringMVC配置是否成功
    @RequestMapping("testSpringMVC")
    @ResponseBody
    public Role findRole(Integer id){
        Role role = new Role();
        role.setRoleid(id);
        role.setRolename("admin");
        role.setRoledes("轻功水上漂");
        System.out.println(role);
        return role;
    }
    @Autowired
    private RoleServiceImpl rolrService;

    //insert
    @RequestMapping("insert")
    @ResponseBody
    public String insert(Role role){
        try {
            rolrService.insert(role);
            return "ok";
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "error";
    }

    //delete
    @RequestMapping("delete")
    @ResponseBody
    public String delete(Integer id){
        try {
            rolrService.delete(id);
            return "ok";
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "error";
    }

    //update
    @RequestMapping("update")
    @ResponseBody
    public String update(Role role){
        try {
            rolrService.update(role);
            return "ok";
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "error";
    }

    //select
    @RequestMapping("findById")
    @ResponseBody
    public Role findById(Integer id){
        return rolrService.findById(id);
    }

    //select all
    @RequestMapping("findAll")
    @ResponseBody
    public List<Role> findAll(){
        return rolrService.findAll();
    }
}

3、修改业务层当中方法

java 复制代码 
package com.jn.service.impl;

import com.jn.entity.Role;
import com.jn.mapper.RoleMapper;
import com.jn.service.RolrService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
@Service("roleService")
public class RoleServiceImpl implements RolrService {
    @Autowired
    private RoleMapper roleMapper;
    @Override
    public Role findById(Integer id) {
        return roleMapper.findById(id);
    }

    @Override
    public List<Role> findAll() {
        return roleMapper.findAll();
    }

    @Override
    public void insert(Role role) {
        roleMapper.insert(role);
    }

    @Override
    public void update(Role role) {
        roleMapper.update(role);
    }

    @Override
    public void delete(Integer id) {
        roleMapper.delete(id);
    }
}

4、测试运行并展示运行结果

4.1添加
4.2修改
4.3删除
4.4查询单个数据
4.5全部查询
相关推荐
Scott9999HH3 小时前
【IIoT流量实战】蒸汽管道阀门全关却仍有流量？用 Python 实现涡街信号 FFT 频谱分析与温压全补偿积算网关，深度拆解靠谱的涡街流量计厂家硬核技术标准
开发语言·python
腻害兔3 小时前
【若依项目-产品经理视角】深度拆解 RuoYi-Vue-Pro 商城模块：从商品管理到交易引擎，50 张表撑起一整套电商系统
java·大数据·vue.js·产品经理·ai编程
码智社4 小时前
AES加密原理详解及Java实现加解密实战
java·开发语言
AI云海4 小时前
python 列表、元组、集合和字典
开发语言·python
萧瑟余晖5 小时前
JDK 26 新特性详解
java·开发语言
马优晨5 小时前
Freemarker 完整讲解（后端 Java 模板引擎）
java·开发语言·freemarker·freemarker 完整讲解·freemarker模板引擎
人邮异步社区7 小时前
怎么把C语言学到精通？
c语言·开发语言
心平气和量大福大8 小时前
C#-WPF-控件-TextBox 数据绑定
开发语言·c#·wpf
ttwuai8 小时前
Cursor 生成 CRUD 后，Go 后台接口别只测 200：JWT、RBAC 和 tenant_id 怎么验
开发语言·后端·golang
维天说8 小时前
CLI-Switch 2026年3月版历史设计：Hook、TTY 隔离与 JSON 状态
java·服务器·json
热门推荐
01GitHub 镜像站点02如何新建文件夹？ 电脑新建文件夹的4种方法032026年7月AI圈大地震：GPT-5.6被政府限制、Claude入驻Slack、Anthropic自研芯片04国内可直接用、免费额度/永久免费的大模型API清单（含 SiliconFlow、火山、阿里、智谱、百度、Kimi、DeepSeek、DMXAPI 等）05AI科技热点日报 | 2026年07月01日06幻兽帕鲁 - 服务器管理员权限与 GM 命令完全指南07AI 编程 IDE 全景解析 2026：Agent 全面接管开发链路08微信历史版本含下载地址（ Windows PC | 安卓 | MAC ）及设置微信不更新09【解构】DeepSeek V4 发布：技术报告深度解读 + 横向对比六大开源模型，我们的判断是……102026 国产 AI 大模型横评：DeepSeek、通义千问、Kimi、文心一言、星火、豆包谁更能打？