SSM整合实现增删改查操作【保姆式教学】-阿里云开发者社区

准备工作

环境准备

IDEA

MySQL 5.7.31

Tomcat 8.5.64

Maven 3.6.3

这是我的环境，版本别差太大就没问题。

数据库准备

CREATE DATABASE `ssmtest`;
USE `ssmtest`;
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user`(
  `userid` INT(10) NOT NULL AUTO_INCREMENT COMMENT '用户ID',
  `username` VARCHAR(100) NOT NULL COMMENT '用户名',
  `password` VARCHAR(100) NOT NULL COMMENT '用户密码',
  `value` INT(10) NOT NULL DEFAULT 1 COMMENT '状态，1正常',
   KEY `userid`(`userid`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;
INSERT INTO `user`(`userid`,`username`,`password`,`value`)VALUES
(1,'keafmd','666',1),
(2,'keafod','888',1);

开始干活

新建个Maven项目ssmtest，加上Web支持

创建完成的效果：

添加依赖

<properties>
   <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <!--统一的版本管理-->
    <spring.version>5.2.7.RELEASE</spring.version>
    <slf4j.version>1.7.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
    <mysql.version>5.1.49</mysql.version>
    <mybatis.version>3.4.5</mybatis.version>
</properties>
<dependencies>
  <!-- spring -->
  <dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.9.5</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>${spring.version}</version>
  </dependency>
  <!--Junit-->
  <dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
    <scope>compile</scope>
  </dependency>
  <!--数据库驱动-->
  <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>${mysql.version}</version>
  </dependency>
  <!-- 数据库连接池 -->
  <dependency>
    <groupId>c3p0</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.1.1</version>
    <type>jar</type>
    <scope>compile</scope>
  </dependency>
  <!--Servlet - JSP -->
  <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>
  <!--Mybatis-->
  <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>${mybatis.version}</version>
  </dependency>
  <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.3.2</version>
  </dependency>
  <!-- log  -->
  <dependency>
    <groupId>log4j</groupId>
    <artifactId>log4j</artifactId>
    <version>${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>
</dependencies>

完整的pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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>com.keafmd</groupId>
  <artifactId>ssmtest</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>
  <name>ssmtest Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <!--统一的版本管理-->
    <spring.version>5.2.7.RELEASE</spring.version>
    <slf4j.version>1.7.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
    <mysql.version>5.1.49</mysql.version>
    <mybatis.version>3.4.5</mybatis.version>
  </properties>
  <dependencies>
    <!-- spring -->
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.9.5</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>${spring.version}</version>
    </dependency>
    <!--Junit-->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>compile</scope>
    </dependency>
    <!--数据库驱动-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.version}</version>
    </dependency>
    <!-- 数据库连接池 -->
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.1</version>
      <type>jar</type>
      <scope>compile</scope>
    </dependency>
    <!--Servlet - JSP -->
    <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>
    <!--Mybatis-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.2</version>
    </dependency>
    <!-- log  -->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${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>
  </dependencies>
  <build>
    <finalName>ssmtest</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

创建entity、dao、service、controller包

实体类编写

添加lombook

User：

package com.keafmd.entity;
import lombok.Data;
import java.io.Serializable;
/**
 * Keafmd
 *
 * @ClassName: User
 * @Description: 用户实体类
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:11
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Data
public class User implements Serializable {
    private Integer userId;
    private String userName;
    private String password;
}

持久层接口编写

IUserDao ：

package com.keafmd.dao;
import com.keafmd.entity.User;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: IUserDao
 * @Description: 用户dao接口
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:20
 * @Blog: https://keafmd.blog.csdn.net/
 */
public interface IUserDao {
    //查询所有
    public List<User> findAll();
    //保存用户
    public void saveUser(User user);
}

业务层接口编写

IUserService：

package com.keafmd.service;
import com.keafmd.entity.User;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: IUserService
 * @Description: user业务层接口
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:23
 * @Blog: https://keafmd.blog.csdn.net/
 */
public interface IUserService {
    //查询所有
    public List<User> findAll();
    //保存用户
    public void saveUser(User user);
}

业务层实现类编写

UserServiceImpl ：

package com.keafmd.service.impl;
import com.keafmd.entity.User;
import com.keafmd.service.IUserService;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: UserService
 * @Description: user业务层实现类
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:25
 * @Blog: https://keafmd.blog.csdn.net/
 */
public class UserServiceImpl implements IUserService {
    @Override
    public List<User> findAll() {
        System.out.println("user业务层实现类--findAll");
        return null;
    }
    @Override
    public void saveUser(User user) {
        System.out.println("user业务层实现类--saveUser");
    }
}

表现层编写

UserController ：

package com.keafmd.controller;
/**
 * Keafmd
 *
 * @ClassName: UserController
 * @Description: user控制层
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:28
 * @Blog: https://keafmd.blog.csdn.net/
 */
public class UserController {
}

整合步骤

保证 Spring 框架在 web 工程中独立运行

第一步：编写 spring 配置文件并导入约束

applicationContext.xml：

<?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和dao层的注解，要忽略web层注解，因为web层让SpringMVC框架去管理 -->
    <context:component-scan base-package="com.keafmd">
        <!-- 配置要忽略的注解 -->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
</beans>

第二步：使用注解配置业务层

在 UserServiceImpl 方法上加上 @Service("userService").

package com.keafmd.service.impl;
import com.keafmd.entity.User;
import com.keafmd.service.IUserService;
import org.springframework.stereotype.Service;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: UserService
 * @Description: user业务层实现类
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:25
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Service("userService")
public class UserServiceImpl implements IUserService {
    @Override
    public List<User> findAll() {
        System.out.println("user业务层实现类--findAll");
        return null;
    }
    @Override
    public void saveUser(User user) {
        System.out.println("user业务层实现类--saveUser");
    }
}

第三步：导入log4j.properties配置文件

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=info, CONSOLE, LOGFILE
# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n
# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=d:\axis.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

第四步：测试 spring 能否独立运行

测试代码：

package com.keafmd;
import com.keafmd.service.IUserService;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
 * Keafmd
 *
 * @ClassName: TestSpring
 * @Description: 测试 spring 能否独立运行
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:38
 * @Blog: https://keafmd.blog.csdn.net/
 */
public class TestSpring {
    @Test
    public void test1(){
        //加载配置文件
        ApplicationContext ac = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
        //获取对象
        IUserService userService = (IUserService)ac.getBean("userService");
        //调用方法
        userService.findAll();
    }
}

测试效果：

保证 SpringMVC 在 web 工程中独立运行

第一步：编写 SpringMVC 的配置文件

springmvc.xml：

<?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">
    <!-- 开启注解扫描，扫描controller的注解，别的不扫描 -->
    <context:component-scan base-package="com.keafmd">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 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="/WEB-INF/pages/"/>
        <!-- 文件的后缀名 -->
        <property name="suffix" value=".jsp"/>
    </bean>
    <!-- 过滤静态资源，设置静态资源不过滤 -->
    <mvc:resources location="/css/" mapping="/css/**"/>
    <mvc:resources location="/images/" mapping="/images/**"/>
    <mvc:resources location="/js/" mapping="/js/**"/>
    <!-- 开启对SpringMVC注解的支持 -->
    <mvc:annotation-driven/>
</beans>

第二步：在 web.xml 中配置核心控制器（DispatcherServlet）

web.xml：

<!DOCTYPE web-app PUBLIC
        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
        "http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
    <display-name>Archetype Created Web Application</display-name>
    <!-- 配置前端控制器：服务器启动必须加载，需要加载springmvc.xml配置文件 -->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 配置初始化参数，加载springmvc.xml配置文件 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc.xml</param-value>
        </init-param>
        <!-- 启动服务器，创建该servlet -->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--解决中文乱码的过滤器-->
    <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>
</web-app>

第三步：编写 Controller 和 jsp 页面

UserController ：

package com.keafmd.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
 * Keafmd
 *
 * @ClassName: UserController
 * @Description: user控制层
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:28
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Controller
@RequestMapping("/user")
public class UserController {
    @RequestMapping("/findAll")
    public String findAll(){
        System.out.println("表现层--查询所有用户");
        return "user_list";
    }
}

index.jsp：

<%--
  Created by IntelliJ IDEA.
  User: lenovo
  Date: 2021/4/19
  Time: 9:52
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <a href="user/findAll">查询所有用户</a>
</body>
</html>

user_list.jsp：

<%--
  Created by IntelliJ IDEA.
  User: lenovo
  Date: 2021/4/19
  Time: 9:55
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <h1>查询所有用户</h1>
</body>
</html>

第四步：部署tomcat服务器

-Dfile.encoding=utf-8

第五步：启动服务器，进行测试

点击后的效果：

Spring 整合 SpringMVC 的框架

第一步：配置监听器实现启动服务创建容器

<!-- 配置 spring 提供的监听器，用于启动服务时加载容器 。
  该监听器只能加载 WEB-INF 目录中名称为 applicationContext.xml 的配置文件 -->
<listener>
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 手动指定 spring 配置文件位置 -->
<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:applicationContext.xml</param-value>
</context-param>

完整的web.xml：

<!DOCTYPE web-app PUBLIC
        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
        "http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
  <display-name>Archetype Created Web Application</display-name>
  <!-- 配置前端控制器：服务器启动必须加载，需要加载springmvc.xml配置文件 -->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 配置初始化参数，加载springmvc.xml配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!-- 启动服务器，创建该servlet -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!-- 配置 spring 提供的监听器，用于启动服务时加载容器 。
   该监听器只能加载 WEB-INF 目录中名称为 applicationContext.xml 的配置文件 -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 手动指定 spring 配置文件位置 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <!--解决中文乱码的过滤器-->
  <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>
</web-app>

第二步：在controller中注入service对象，调用service对象的方法进行测试

UserController ：

package com.keafmd.controller;
import com.keafmd.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
/**
 * Keafmd
 *
 * @ClassName: UserController
 * @Description: user控制层
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:28
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private IUserService userService;
    @RequestMapping("/findAll")
    public String findAll(){
        System.out.println("表现层--查询所有用户");
        //调用service的方法
        userService.findAll();
        return "user_list";
    }
}

重启Tomcat点击查询所有用户，控制台输出效果如下：

保证 MyBatis 框架在 web 工程中独立运行

第一步：在web项目中编写SqlMapConfig.xml的配置文件，编写核心配置文件

SqlMapConfig.xml：

<?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>
    <!-- 配置连接数据库的信息 -->
    <properties resource="jdbcConfig.properties"></properties>
    <!-- 配置mybatis的环境 -->
    <environments default="mysql">
        <environment id="mysql">
            <!-- 配置事务管理 -->
            <transactionManager type="JDBC"></transactionManager>
            <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>
    <!-- 指定映射文件位置 -->
    <mappers>
        <!--<mapper class="com.keafmd.dao.IAccountDao"/>
        <mapper class="com.keafmd.dao.IUserDao"/>-->
        <package name="com.keafmd.dao"/>
    </mappers>
</configuration>

jdbcConfig.properties：

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssmtest
jdbc.username=root
jdbc.password=18044229

第二步：在IUserDao接口的方法上添加注解，编写SQL语句

IUserDao ：

package com.keafmd.dao;
import com.keafmd.entity.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: IUserDao
 * @Description: 用户dao接口
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:20
 * @Blog: https://keafmd.blog.csdn.net/
 */
public interface IUserDao {
    //查询所有
    @Select("select * from user")
    public List<User> findAll();
    //保存用户
    @Insert("insert into user(username,password) values(#{userName},#{password})")
    public void saveUser(User user);
}

第三步：编写测试的方法

TestMybatis ：

package com.keafmd;
import com.keafmd.dao.IUserDao;
import com.keafmd.entity.User;
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.After;
import org.junit.Before;
import org.junit.Test;
import java.io.InputStream;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: TestMybatis
 * @Description:
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 10:20
 * @Blog: https://keafmd.blog.csdn.net/
 */
public class TestMybatis {
    private InputStream in;
    private SqlSessionFactory factory;
    private SqlSession session;
    private IUserDao userDao;
    @Before
    public void init() throws Exception{
        //加载配置文件
        in = Resources.getResourceAsStream("SqlMapConfig.xml");
        //创建SqlSessionFactory对象
        factory = new SqlSessionFactoryBuilder().build(in);
        //创建SqlSession对象
        session = factory.openSession();
        //获取到代理对象
        userDao = session.getMapper(IUserDao.class);
    }
    @After
    public void destory() throws Exception{
        session.commit();
        session.close();
        in.close();
    }
    /**
     * 查询所有
     */
    @Test
    public void run1(){
        List<User> users = userDao.findAll();
        for (User user : users) {
            System.out.println(user);
        }
    }
    /**
     * 测试保存
     */
    @Test
    public void saveUser(){
        User user = new User();
        user.setUserName("毛利小五郎");
        user.setPassword("999");
        userDao.saveUser(user);
    }
}

测试效果：

Spring 整合 MyBatis 框架

把 mybatis 配置文件（SqlMapConfig.xml）中内容配置到 spring 配置文件中同时，把 mybatis 配置文件的内容清掉。

第一步：把SqlMapConfig.xml配置文件中的内容配置到applicationContext.xml配置文件中

把以下内容添加到applicationContext.xml配置文件中：

<!--Spring整合Mybatisl框架-->
<!-- 配置C3P0的连接池对象 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
    <property name="driverClass" value="com.mysql.jdbc.Driver"/>
    <property name="jdbcUrl" value="jdbc:mysql:///ssmtest"/>
    <property name="user" value="root"/>
    <property name="password" value="18044229"/>
</bean>
<!-- 配置SqlSession的工厂 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置扫描dao的包 -->
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.keafmd.dao"/>
</bean>
<!--SqlMapConfig.xml和jdbcConfig.properties可以删除了-->

再添加上配置Spring框架声明式事务管理：

<!--配置Spring框架声明式事务管理-->
<!--配置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 配置事务的通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes>
        <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
        <tx:method name="*" isolation="DEFAULT"/>
    </tx:attributes>
</tx:advice>
<!-- 配置AOP增强 -->
<aop:config>
    <!--<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.keafmd.service.impl.*.*(..))"/>-->
    <!-- 配置切入点表达式 -->
    <aop:pointcut expression="execution(* com.keafmd.service.impl.*.*(..))" id="pt1"/>
    <!-- 建立通知和切入点表达式的关系 -->
    <aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>
</aop:config>

applicationContext.xml：

<?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和dao层的注解，要忽略web层注解，因为web层让SpringMVC框架去管理 -->
    <context:component-scan base-package="com.keafmd">
        <!-- 配置要忽略的注解 -->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!--Spring整合Mybatisl框架-->
    <!-- 配置C3P0的连接池对象 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="com.mysql.jdbc.Driver"/>
        <property name="jdbcUrl" value="jdbc:mysql:///ssmtest?characterEncoding=utf8"/>
        <property name="user" value="root"/>
        <property name="password" value="root"/>
    </bean>
    <!-- 配置SqlSession的工厂 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    <!-- 配置扫描dao的包 -->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.keafmd.dao"/>
    </bean>
    <!--SqlMapConfig.xml和jdbcConfig.properties可以删除了-->
    <!--配置Spring框架声明式事务管理-->
    <!--配置事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 配置事务的通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="*" isolation="DEFAULT"/>
        </tx:attributes>
    </tx:advice>
    <!-- 配置AOP增强 -->
    <aop:config>
        <!--<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.keafmd.service.impl.*.*(..))"/>-->
        <!-- 配置切入点表达式 -->
        <aop:pointcut expression="execution(* com.keafmd.service.impl.*.*(..))" id="pt1"/>
        <!-- 建立通知和切入点表达式的关系 -->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>
    </aop:config>
</beans>

第三步：在IUserDao接口中添加@Repository注解

package com.keafmd.dao;
import com.keafmd.entity.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: IUserDao
 * @Description: 用户dao接口
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:20
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Repository
public interface IUserDao {
    //查询所有
    @Select("select * from user")
    public List<User> findAll();
    //保存用户
    @Insert("insert into user(username,password) values(#{userName},#{password})")
    public void saveUser(User user);
}

第四步：在UserServiceImpl中注入dao对象

package com.keafmd.service.impl;
import com.keafmd.dao.IUserDao;
import com.keafmd.entity.User;
import com.keafmd.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: UserService
 * @Description: user业务层实现类
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:25
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Service("userService")
public class UserServiceImpl implements IUserService {
    @Autowired
    IUserDao userDao;
    @Override
    public List<User> findAll() {
        System.out.println("user业务层实现类--findAll");
        return userDao.findAll();
    }
    @Override
    public void saveUser(User user) {
        System.out.println("user业务层实现类--saveUser");
        userDao.saveUser(user);
    }
}

第五步：修改 UserController 代码

package com.keafmd.controller;
import com.keafmd.entity.User;
import com.keafmd.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpRequest;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: UserController
 * @Description: user控制层
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:28
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private IUserService userService;
    @RequestMapping("/findAll")
    public String findAll(Model model){
        System.out.println("表现层--查询所有用户");
        //调用service的方法
        List<User> userList = userService.findAll();
        model.addAttribute("userList",userList);
        return "user_list";
    }
    @RequestMapping("/save")
    public void save(User user , HttpServletRequest request, HttpServletResponse response) throws IOException {
        userService.saveUser(user);
        response.sendRedirect(request.getContextPath()+"/user/findAll");
        return;
    }
}

第五步：修改 user_list.jsp 代码，实现显示账户信息

<%--
  Created by IntelliJ IDEA.
  User: lenovo
  Date: 2021/4/19
  Time: 9:55
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <h1>查询所有用户</h1>
<%--    ${userList}--%>
    <c:forEach items="${userList}" var="user">
        ${user.userName}
        ${user.password}
    </c:forEach>
</body>
</html>

第六步：测试查询

效果：

第七步：测试保存

修改index.jsp代码，添加测试保存的代码：

<%--
  Created by IntelliJ IDEA.
  User: lenovo
  Date: 2021/4/19
  Time: 9:52
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <a href="user/findAll">查询所有用户</a>
    <h1>测试保存</h1>
    <form action="user/save" method="post">
        账户名：<input type="text" name="userName" /><br/>
        密码：<input type="text" name="password" /><br/>
        <input type="submit" value="保存">
    </form>
</body>
</html>

修改 UserController 代码，添加save方法：

package com.keafmd.controller;
import com.keafmd.entity.User;
import com.keafmd.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpRequest;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: UserController
 * @Description: user控制层
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:28
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private IUserService userService;
    @RequestMapping("/findAll")
    public String findAll(Model model){
        System.out.println("表现层--查询所有用户");
        //调用service的方法
        List<User> userList = userService.findAll();
        model.addAttribute("userList",userList);
        return "user_list";
    }
    @RequestMapping("/save")
    public void save(User user , HttpServletRequest request, HttpServletResponse response) throws IOException {
        userService.saveUser(user);
        response.sendRedirect(request.getContextPath()+"/user/findAll");
        return;
    }
}

测试效果：

增删改查（前后端分离）

查找

实际开发中，多为前后端分离，所以我们需要修改我们的表现层代码，同时需要添加上jackson的依赖。

<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-core</artifactId>
  <version>2.11.0</version>
</dependency>
<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-databind</artifactId>
  <version>2.11.0</version>
</dependency>
<dependency>
  <groupId>com.fasterxml.jackson.core</groupId>
  <artifactId>jackson-annotations</artifactId>
  <version>2.11.0</version>
</dependency>

UserController：

package com.keafmd.controller;
import com.keafmd.common.CommonResult;
import com.keafmd.entity.User;
import com.keafmd.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpRequest;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
 * Keafmd
 *
 * @ClassName: UserController
 * @Description: user控制层
 * @author: 牛哄哄的柯南
 * @Date: 2021-04-19 9:28
 * @Blog: https://keafmd.blog.csdn.net/
 */
@Controller
@RequestMapping("/user")
public class UserController {
    @Autowired
    private IUserService userService;
    // http://127.0.0.1:8080/ssmtest/user/findAll
    @RequestMapping("/findAll")
    @ResponseBody
    public List<User> findAll(){
        System.out.println("表现层--查询所有用户");
        //调用service的方法
        List<User> userList = userService.findAll();
//        model.addAttribute("userList",userList);
//        return "user_list";
        return userList;
    }
    @RequestMapping("/save")
    public void save(User user , HttpServletRequest request, HttpServletResponse response) throws IOException {
        userService.saveUser(user);
        response.sendRedirect(request.getContextPath()+"/user/findAll");
        return;
    }
}

访问： http://127.0.0.1:8080/ssmtest/user/findAll

前端vue项目

这里我们需要有相关的环境，这里不细说了。

创建个空的vue项目

找个文件夹进入命令行，输入：vue create ssmtest

关闭代码格式化校验工具

在项目的根目录（与package.json同级）中，添加名称为vue.config.js的文件，就能自动被vue-cli加载。

module.exports = {
    lintOnSave:false, //关闭代码格式化校验工具
    devServer:{
        port: 80 //修改启动端口
    }
}

安装相关的工具

1、安装vue-router

npm install vue-router

2、安装 element-ui插件

npm i element-ui -S

3、安装axios

npm install axios

目录结构

编写main.js

在这里引入各种组件，写上router。

import Vue from 'vue'
import App from './App.vue'
import router from '@/router'
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';
Vue.use(ElementUI);
Vue.config.productionTip = false
new Vue({
  render: h => h(App),
  router
}).$mount('#app')

编写App.vue

在div中写入<router-view></router-view>，用路由控制界面。

<template>
  <div id="app">
  <router-view></router-view>
  </div>
</template>
<script>
// import First from './components/First.vue'
export default {
  name: 'App',
  components: {
  // First
  }
}
</script>
<style>
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

编写router文件夹下的index.js

在这里使用router配置各种路径

import Vue from 'vue'
import Router from 'vue-router'
Vue.use(Router)
// import A from '@/components/A'
// import B from '@/components/B'
export default new Router({
  mode: 'history',
  routes: [{
      path: '/',
      name: 'Index',
      component: () => import('@/views'),
      children: [{
          path: '/user',
          name: 'User',
          component: () => import('@/views/user')
        }
      ]
    }
    // ,
    // {
    //  path: '/user',
    //  name: 'User',
    //  component: () => import('@/views/user')
    // }
    // {
    //   path: '/aaa',
    //   name: 'A',
    //   component: A
    // },
    // {
    //   path: '/bbb',
    //   name: 'B',
    //   component: B
    // }
  ]
})

编写公共部分的menu.vue

注意：在 el-menu 标签里注入router。

<template>
    <el-menu router >
        <el-submenu index="1">
            <template slot="title">
                <span>管理</span>
            </template>
            <el-menu-item-group>
                <el-menu-item index="/user"> <i class="el-icon-location"></i>用户管理</el-menu-item>
                <!-- <el-menu-item index="/menu"> <i class="el-icon-location"></i>菜单管理</el-menu-item> -->
            </el-menu-item-group>
        </el-submenu>
       <!-- <el-submenu index="2">
            <template slot="title">
                <span>ElementUI组件</span>
            </template>
            <el-menu-item-group>
                <el-menu-item index="/table"> <i class="el-icon-location"></i>表格组件</el-menu-item>
            </el-menu-item-group>
        </el-submenu> -->
    </el-menu>
</template>
<script>
    export default {
        name: 'Menu'
    }
</script>
<style>
</style>

编写views下的index.vue

<template>
  <el-container class="wrap">
    <el-header class="header">
      <el-row>
        <el-col :span="20">信息系统</el-col>
        <el-col :span="4">
          <el-dropdown>
            <span class="el-dropdown-link">
              keafmd<i class="el-icon-arrow-down el-icon--right"></i>
            </span>
            <el-dropdown-menu slot="dropdown">
              <el-dropdown-item command="Personal">个人设置</el-dropdown-item>
              <el-dropdown-item command="Logout">退出</el-dropdown-item>
            </el-dropdown-menu>
          </el-dropdown>
        </el-col>
      </el-row>
    </el-header>
    <el-container>
      <el-aside width="200px" class="aside">
        <Menu></Menu>
      </el-aside>
      <el-main>
        <!-- <User></User> -->
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>
<script>
  // import User from './user/index.vue'
  import Menu from '@/components/menu'
  export default {
    name: 'Index',
    components: {
      Menu
      // User
    },
    data() {
      return {}
    },
    methods: {
    },
    created() {}
  }
</script>
<style scoped>
  .wrap {
    height: 100vh;
  }
  .header {
    border-bottom: 1px solid aqua;
  }
  .aside {
    border-right: 1px solid aqua;
  }
</style>

编写views下的user下的index.vue

<template>
  <div>
    <el-table :data="tableData.filter(data => !search || data.name.toLowerCase().includes(search.toLowerCase()))"
      style="width: 100%">
      <el-table-column label="userName" prop="userName">
      </el-table-column>
      <el-table-column label="Password" prop="password">
      </el-table-column>
      <el-table-column align="right">
        <template slot="header" slot-scope="scope">
          <el-input v-model="search" size="mini" placeholder="输入关键字搜索" />
        </template>
        <template slot-scope="scope">
          <el-button size="mini" @click="handleEdit(scope.$index, scope.row)">Edit</el-button>
          <el-button size="mini" type="danger" @click="handleDelete(scope.$index, scope.row)">Delete
          </el-button>
        </template>
      </el-table-column>
    </el-table>
  </div>
</template>
<script>
  import axios from 'axios';
  axios.defaults.baseURL = 'http://127.0.0.1:8080/ssmtest';
  export default {
    name: 'User',
    components: {
    },
    data() {
      return {
        tableData: [],
        search: ''
      }
    },
    methods: {
      getData() {
        axios.get('/user/findAll')
          .then((res) => {
            this.tableData = res.data
          })
          .catch(function(error) {
            console.log(error);
          });
      },
      handleEdit(index, row) {
        console.log(index, row);
      },
      handleDelete(index, row) {
        console.log(index, row);
      }
    },
    created() {
      this.getData();
    }
  }
</script>
<style>
</style>

效果展示

查询效果：

SSM整合实现增删改查操作【保姆式教学】

准备工作

环境准备

数据库准备

开始干活

新建个Maven项目ssmtest，加上Web支持

添加依赖

完整的pom.xml

创建entity、dao、service、controller包

实体类编写

添加lombook

持久层接口编写

业务层接口编写

业务层实现类编写

表现层编写

整合步骤

保证 Spring 框架在 web 工程中独立运行

保证 SpringMVC 在 web 工程中独立运行

Spring 整合 SpringMVC 的框架

保证 MyBatis 框架在 web 工程中独立运行

Spring 整合 MyBatis 框架

增删改查（前后端分离）

前端vue项目

创建个空的vue项目

关闭代码格式化校验工具

目录结构

编写main.js

编写App.vue

编写router文件夹下的index.js

编写公共部分的menu.vue

编写views下的index.vue

编写views下的user下的index.vue

效果展示

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SSM整合实现增删改查操作【保姆式教学】

准备工作

环境准备

数据库准备

开始干活

新建个Maven项目ssmtest，加上Web支持

添加依赖

完整的pom.xml

创建entity、dao、service、controller包

实体类编写

添加lombook

持久层接口编写

业务层接口编写

业务层实现类编写

表现层编写

整合步骤

保证 Spring 框架在 web 工程中独立运行

保证 SpringMVC 在 web 工程中独立运行

Spring 整合 SpringMVC 的框架

保证 MyBatis 框架在 web 工程中独立运行

Spring 整合 MyBatis 框架

增删改查（前后端分离）

前端vue项目

创建个空的vue项目

关闭代码格式化校验工具

目录结构

编写main.js

编写App.vue

编写router文件夹下的index.js

编写公共部分的menu.vue

编写views下的index.vue

编写views下的user下的index.vue

效果展示

热门文章

最新文章

相关课程

相关电子书

相关实验场景