Spring Boot整合SSM

曾经终败给现在 2022-04-15 02:10 159阅读 0赞

Spring Boot可以帮助我们快速的搭建一个SSM框架，那建立spring boot项目之后怎样和SSM整合呢？  
1.新建Model时，选择项目需要的核心依赖包  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3plYWw5cw_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3plYWw5cw_size_16_color_FFFFFF_t_70 1]  
2.新建项目，建立相关对应的核心包，下图是成功之后的项目结构图  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3plYWw5cw_size_16_color_FFFFFF_t_70 2]  
Students.java

package com.ssm.springboot02.model;
    
    /** * @author 小思 * @PackageName:com.ssm.springboot02.model * @ClassName: Students * @Description: * @date 2018/11/20 12:01 */
    public class Students { 
        private Integer sid;
        private String sname;
    
        public Integer getSid() { 
            return sid;
        }
    
        public void setSid(Integer sid) { 
            this.sid = sid;
        }
    
        public String getSname() { 
            return sname;
        }
    
        public void setSname(String sname) { 
            this.sname = sname;
        }
    
        public Students(Integer sid, String sname) { 
            this.sid = sid;
            this.sname = sname;
        }
    
        public Students() { 
        }
    }

StudentsServicesImpl.java

package com.ssm.springboot02.services.Impl;
    
    import com.ssm.springboot02.mapper.StudentsMapper;
    import com.ssm.springboot02.model.Students;
    import com.ssm.springboot02.services.StudentsServices;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import java.util.List;
    
    /** * @author 小思 * @PackageName:com.ssm.springboot02.services.Impl * @ClassName: StudentsServicesImpl * @Description: * @date 2018/11/20 12:00 */
    @Service
    public class StudentsServicesImpl implements StudentsServices { 
        @Autowired
        private StudentsMapper studentsMapper;
    
        @Override
        public List<Students> getAllStudents() { 
            return studentsMapper.getAllStudents();
        }
    }

StudentsServices.java

package com.ssm.springboot02.services;
    
    import com.ssm.springboot02.model.Students;
    
    import java.util.List;
    
    /** * @author 小思 * @PackageName:com.ssm.springboot02.services * @ClassName: StudentsServices * @Description: * @date 2018/11/20 12:00 */
    public interface StudentsServices { 
        public List<Students> getAllStudents();
    }

3.如果此时启动Springboot02Application文件，因为没有配置application.properties，所以会报错  
此时需要配置项目启动的基本信息

### 第一种方式：xml方式 ###

application.properties

#服务配置
    server.port=8090
    server.servlet.context-path=/ssm
    
    #数据源配置
    spring.datasource.username=root
    spring.datasource.password=
    spring.datasource.url=jdbc:mysql://localhost:3306/zs?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
    spring.datasource.driver-class-name=com.mysql.jdbc.Driver
    
    
    #mybatis配置
    mybatis.type-aliases-package=com.ssm.springboot02.model
    mybatis.mapper-locations=classpath:com/ssm/springboot02/model/*.xml

StudentsMapper.java

package com.ssm.springboot02.mapper;
    
    import com.ssm.springboot02.model.Students;
    
    import java.util.List;
    
    /** * @author 小思 * @PackageName:com.ssm.springboot02.mapper * @ClassName: StudentsMapper * @Description:对应Students.xml的接口 * @date 2018/11/20 12:07 */
    public interface StudentsMapper { 
        public List<Students> getAllStudents();
    }

Students.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.ssm.springboot02.mapper.StudentsMapper">
        <select id="getAllStudents" resultType="Students">
            select * from students
        </select>
    </mapper>

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.ssm</groupId>
        <artifactId>springboot02</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>springboot02</name>
        <description>Demo project for Spring Boot</description>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.1.0.RELEASE</version>
            <relativePath/> 
        </parent>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-jdbc</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>1.3.2</version>
            </dependency>
    
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <scope>runtime</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <build>
            <resources>
                <resource>
                    <directory>src/main/java</directory>
                    <includes>
                        <include>**/*.xml</include>
                    </includes>
                </resource>
            </resources>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    
    </project>

xml方式pom.xml需要下面的编码，注解方式不需要  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3plYWw5cw_size_16_color_FFFFFF_t_70 3]

### 第二种方式：注解方式 ###

①删除Students.xml  
②pom.xml文件的允许Java文件的xml可编译

StudentsMapper.java(开启注解)  
application.properties

##服务配置
    server.port=8090
    server.servlet.context-path=/ssm
    
    ##数据源配置
    spring.datasource.username=root
    spring.datasource.password=1234
    spring.datasource.url=jdbc:mysql://localhost:3306/t203?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
    spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
    
    
    ##mybatis配置
    mybatis.type-aliases-package=com.ssm.springboot02.model

package com.ssm.springboot02.mapper;
    
    import com.ssm.springboot02.model.Students;
    import org.apache.ibatis.annotations.Select;
    
    import java.util.List;
    
    /** * @author 小思 * @PackageName:com.ssm.springboot02.mapper * @ClassName: StudentsMapper * @Description:对应Students.xml的接口 * @date 2018/11/20 12:07 */
    public interface StudentsMapper { 
        @Select("select * from students")
        public List<Students> getAllStudents();
    }

selectStudentController.java

package com.ssm.springboot02.controller;
    
    import com.ssm.springboot02.model.Students;
    import com.ssm.springboot02.services.StudentsServices;
    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.RestController;
    
    import java.util.List;
    
    /** * @author 小思 * @PackageName:com.ssm.springboot02.controller * @ClassName: selectStudentController * @Description: * @date 2018/11/20 12:15 */
    @RestController
    public class selectStudentController { 
    
        @Autowired
        private StudentsServices studentsServices;
    
        @RequestMapping("/getStudents")
        public List<Students> getAllStudents(){ 
            System.out.println("学生集合长度："+studentsServices.getAllStudents().size());
            return studentsServices.getAllStudents();
        }
    
    
    }

Springboot02Application.java(一定要注意加入MapperScan)

package com.ssm.springboot02;
    
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    @MapperScan("com.ssm.springboot02.mapper")
    @SpringBootApplication
    public class Springboot02Application { 
    
        public static void main(String[] args) { 
            SpringApplication.run(Springboot02Application.class, args);
        }
    }

注意：测试的时候在浏览器的地址栏输入

> [http://localhost:8090/ssm/getStudents][http_localhost_8090_ssm_getStudents]

注意配置服务器的端口号和项目的全路径

项目application.properties也可以将此文件改为application.yml  
application.yml

#服务配置
    server:
      port: 8090
      servlet:
        context-path: /ssm
    #数据源配置
    spring:
      datasource:
        username: root
        password:
        url: jdbc:mysql://localhost:3306/zs?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8&useSSL=false
        driver-class-name: com.mysql.cj.jdbc.Driver
    #mybatis配置s
    mybatis:
      type-aliases-package: com.ssm.springboot02.model

**说在最后的话：编写实属不易，若喜欢或者对你有帮助记得点赞+关注或者收藏哦~**

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[http_localhost_8090_ssm_getStudents]: http://localhost:8090/ssm/getStudents