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基于spring的ssm整合

article 2024/11/13 16:53:37

目录

基于spring的ssm整合

Spring 框架

SpringMVC 框架

MyBatis 框架

1.创建项目

2.导入依赖

3.导入sql

4.创建jdbc.propries文件

1）mysql8以下

2）mysql8以上的

5.创建mybatis-config.xml配置文件

6.创建spring-Config.xml文件

7.创建项目所需包和类

1）创建mapper包，并且创建UserMapper接口文件

UserMapper

2）在resources文件下创建mapper,并且创建UserMapper.xml文件

3)创建service包，创建MyService接口，并且创建impl包实现MyService

MyService

​编辑

MyServiceImpl

4）创建controller包，并且创建MyController

5）创建enty包，并且创建User实体类

User实体类

8.为项目添加web.xml文件

1）找到项目的pom.xml文件，修改为war包

2）添加web.xml文件

1-按ctrl+Shift+alt+s 弹出界面

2-操作如下

9.配置web.xml文件

10.为项目配置tomcat

11.启动测试

附录

1.sql

usersql  

下载地址 

2.springConfig配置文件

3.mybatis-config配置文件

4.web.xml配置文件

5.jdbc.properies文件

基于spring的ssm整合

        SSM框架指的是Spring、SpringMVC和MyBatis三个Java框架的整合。这三个框架可以一起使用来构建一个功能完整的企业级应用。

  1. Spring 框架

    1. Spring是一个开源的轻量级Java EE框架，主要用来解决企业应用开发中的复杂性问题。Spring的核心特性可以将应用的各种组件进行解耦，它提供了依赖注入（Dependency Injection, DI）和面向切面编程（AOP）等功能。Spring还提供了一系列模块如Spring MVC用于Web层的支持。

  2. SpringMVC 框架

    1. SpringMVC是Spring框架的一个模块，它是一个基于MVC设计模式的轻量级Web框架。SpringMVC负责处理HTTP请求和响应，并且可以与Spring框架无缝集成。它定义了请求-响应模型，简化了Web应用的开发流程。

  3. MyBatis 框架

    1. MyBatis是一个优秀的持久层框架，它内部封装了JDBC API的操作，简化了数据访问层（DAL）的编程。它支持SQL查询、更新、事务管理等操作，同时也支持存储过程。

1.创建项目

2.导入依赖

<dependencies>
    <!--web依赖-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>6.1.12</version>
    </dependency>
    <!--spring-context-->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>6.1.12</version>
    </dependency>
    <!--mybatis-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.16</version>
    </dependency>
    <!--分页插件-->
    <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper</artifactId>
        <version>6.1.0</version>
    </dependency>
    <!--servlet-api-->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>servlet-api</artifactId>
        <version>2.5</version>
    </dependency>
    <dependency>
        <groupId>jakarta.servlet</groupId>
        <artifactId>jakarta.servlet-api</artifactId>
        <version>6.1.0</version>
    </dependency>
    <!--druid连接池-->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.2.7</version>
    </dependency>
    <!--mysql驱动-->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.33</version>
    </dependency>

    <!--mybatis-Spring-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>3.0.4</version>
    </dependency>

    <!--jackson-->
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.17.2</version>
    </dependency>


</dependencies>

3.导入sql

4.创建jdbc.propries文件

1）mysql8以下

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=root

2）mysql8以上的

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=root

5.创建mybatis-config.xml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>
    <settings>
        <setting name="cacheEnabled" value="true"/>
        <setting name="lazyLoadingEnabled" value="true"/>
        <setting name="multipleResultSetsEnabled" value="true"/>
    </settings>


    <!--配置分页插件-->
    <plugins>
        <plugin interceptor="www.github.pagehelper.PageInterceptor"></plugin>
    </plugins>
</configuration>

6.创建spring-Config.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns: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
               http://www.springframework.org/schema/context/spring-context.xsd

               http://www.springframework.org/schema/mvc
               http://www.springframework.org/schema/mvc/spring-mvc.xsd

">
    <!--开启包扫描-->
    <context:component-scan base-package="org.xiji"/>
    <!--开启springmvc注解驱动-->
    <mvc:annotation-driven/>

    <!--导入外部配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--配置druid数据源-->
    <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>
    <!--配置mybatis-->
    <bean id="sessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="datasource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!--配置xml文件的位置-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>
    <!--配置mapper扫描位置-->
    <bean  class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="org.xiji.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sessionFactoryBean"/>
    </bean>

</beans>

7.创建项目所需包和类

1）创建mapper包，并且创建UserMapper接口文件

UserMapper
package org.xiji.mapper;

import org.apache.ibatis.annotations.Mapper;
import org.xiji.enty.User;

import java.util.List;

@Mapper
public interface UserMapper {

    public List<User> test() ;
}

2）在resources文件下创建mapper,并且创建UserMapper.xml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="org.xiji.mapper.UserMapper">


    <select id="test" resultType="org.xiji.enty.User">
        select * from user
    </select>
</mapper>

注：红色位置为你的mapper接口文件位置

3)创建service包，创建MyService接口，并且创建impl包实现MyService

MyService
package org.xiji.serive;

import org.xiji.enty.User;

import java.util.List;

public interface MyService {
    List<User> test();
}

MyServiceImpl
package org.xiji.serive.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInterceptor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.xiji.enty.User;
import org.xiji.mapper.UserMapper;
import org.xiji.serive.MyService;

import java.util.List;

@Service
public class MyServiceImpl implements MyService {
    @Autowired
    private UserMapper userMapper;


    @Override
    public List<User> test() {
        //返回数据
        //设置分页插件
        Page<User> user = PageHelper.startPage(1, 2);

         userMapper.test();

        List<User> result = user.getResult();

        return  result;
    }
}

4）创建controller包，并且创建MyController

package org.xiji.controller;

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 org.xiji.enty.User;
import org.xiji.mapper.UserMapper;
import org.xiji.serive.MyService;

import java.util.List;

@Controller
public class MyController {
    @Autowired
    MyService myService;


    @RequestMapping(value = "/",produces = {})
    @ResponseBody
    public List<User> test()
    {
        List<User> test = myService.test();
        return test;

    }


}

5）创建enty包，并且创建User实体类

User实体类
package org.xiji.enty;

public class User {
    private int id;
    private String username;
    private String password;
    private String userInfo;

    public User() {
    }

    public User(int id, String username, String password, String userInfo) {
        this.id = id;
        this.username = username;
        this.password = password;
        this.userInfo = userInfo;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", username='" + username + '\'' +
                ", password='" + password + '\'' +
                ", userInfo='" + userInfo + '\'' +
                '}';
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getUserInfo() {
        return userInfo;
    }

    public void setUserInfo(String userInfo) {
        this.userInfo = userInfo;
    }
}

8.为项目添加web.xml文件

1）找到项目的pom.xml文件，修改为war包

<?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>org.xiji</groupId>
    <artifactId>spring-ssm</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>war</packaging>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <!--web依赖-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>6.1.12</version>
        </dependency>
        <!--spring-context-->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>6.1.12</version>
        </dependency>
        <!--mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.16</version>
        </dependency>
        <!--分页插件-->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</artifactId>
            <version>6.1.0</version>
        </dependency>
        <!--servlet-api-->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>
        
        <dependency>
            <groupId>jakarta.servlet</groupId>
            <artifactId>jakarta.servlet-api</artifactId>
            <version>6.1.0</version>
        </dependency>
        <!--druid连接池-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.7</version>
        </dependency>
        <!--mysql驱动-->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.33</version>
        </dependency>

        <!--mybatis-Spring-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>3.0.4</version>
        </dependency>
        
        <!--jackson-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.17.2</version>
        </dependency>
    </dependencies>

</project>

2）添加web.xml文件

1-按ctrl+Shift+alt+s 弹出界面

2-操作如下

9.配置web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

    <servlet>
        <servlet-name>MyPro</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--配置spring配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springConfig.xml</param-value>
        </init-param>
        <!--初始化提前-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>MyPro</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>
</web-app>

10.为项目配置tomcat

add ==>tomcat ===>local

configure===>fix===>任选一个

application contenx 修改为 /

11.启动测试

访问成功 http://localhost:8080/

附录

1.sql

usersql  

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for user
-- ----------------------------
DROP TABLE IF EXISTS `user`;
CREATE TABLE `user`  (
  `id` int NOT NULL AUTO_INCREMENT COMMENT '用户id',
  `username` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '用户名字',
  `password` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '用户密码',
  `userInfo` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NULL DEFAULT NULL COMMENT '用户信息',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = DYNAMIC;

-- ----------------------------
-- Records of user
-- ----------------------------
INSERT INTO `user` VALUES (1, 'xiji', '123456', 'helloword');
INSERT INTO `user` VALUES (2, 'xiaojiu', '123456', 'helloword');
INSERT INTO `user` VALUES (3, 'as', '123456', 'helloword');
INSERT INTO `user` VALUES (4, 'zs', '123456', 'helloword');

SET FOREIGN_KEY_CHECKS = 1;

下载地址 

 user.sql官方版下载丨最新版下载丨绿色版下载丨APP下载-123云盘

2.springConfig配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns: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
               http://www.springframework.org/schema/context/spring-context.xsd

               http://www.springframework.org/schema/mvc
               http://www.springframework.org/schema/mvc/spring-mvc.xsd

">
    <!--开启包扫描-->
    <context:component-scan base-package="org.xiji"/>
    <!--开启springmvc注解驱动-->
    <mvc:annotation-driven/>

    <!--导入外部配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--配置druid数据源-->
    <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>
    <!--配置mybatis-->
    <bean id="sessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="datasource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!--配置xml文件的位置-->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>
    <!--配置mapper扫描位置-->
    <bean  class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="org.xiji.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sessionFactoryBean"/>
    </bean>

</beans>

3.mybatis-config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>
    <settings>
        <setting name="cacheEnabled" value="true"/>
        <setting name="lazyLoadingEnabled" value="true"/>
        <setting name="multipleResultSetsEnabled" value="true"/>
    </settings>


    <plugins>
        <plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin>
    </plugins>

</configuration>

4.web.xml配置文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

    <servlet>
        <servlet-name>MyPro</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--配置spring配置文件-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springConfig.xml</param-value>
        </init-param>
        <!--初始化提前-->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>MyPro</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>
</web-app>

5.jdbc.properies文件

jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf8
jdbc.username=root
jdbc.password=root


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