SSM 基于注解的整合实现

一、pom.xml

<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>org.example</groupId><artifactId>spring_annotation</artifactId><packaging>war</packaging><version>1.0-SNAPSHOT</version><name>spring_annotation Maven Webapp</name><url>http://maven.apache.org</url><properties><maven.compiler.source>17</maven.compiler.source><maven.compiler.target>17</maven.compiler.target><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><springframework.version>6.0.9</springframework.version><jackson.version>2.15.1</jackson.version></properties><dependencies><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper</artifactId><version>5.3.2</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.2.16</version></dependency><dependency><groupId>jakarta.servlet</groupId><artifactId>jakarta.servlet-api</artifactId><version>6.0.0</version><scope>provided</scope></dependency><!-- spring core container --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>${springframework.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>${springframework.version}</version></dependency><!--    <dependency>--><!--      <groupId>org.springframework</groupId>--><!--      <artifactId>spring-context</artifactId>--><!--      <version>${springframework.version}</version>--><!--    </dependency>--><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>${springframework.version}</version><scope>test</scope></dependency><!-- spring-web --><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>${springframework.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>${springframework.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>${springframework.version}</version></dependency><!-- aspectj --><dependency><groupId>org.aspectj</groupId><artifactId>aspectjrt</artifactId><version>1.9.19</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.9.19</version></dependency><!-- bean-validator --><dependency><groupId>org.hibernate</groupId><artifactId>hibernate-validator</artifactId><version>8.0.0.Final</version></dependency><!-- mybatis --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.5.13</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>3.0.2</version></dependency><!-- mysql-connector-java --><dependency><groupId>com.mysql</groupId><artifactId>mysql-connector-j</artifactId><version>8.1.0</version><scope>runtime</scope></dependency><!--Thymeleaf--><dependency><groupId>org.thymeleaf</groupId><artifactId>thymeleaf-spring6</artifactId><version>3.1.1.RELEASE</version></dependency><dependency><groupId>org.thymeleaf.extras</groupId><artifactId>thymeleaf-extras-java8time</artifactId><version>3.0.4.RELEASE</version></dependency><!-- spring-jdbc --><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${springframework.version}</version></dependency><dependency><groupId>org.webjars</groupId><artifactId>bootstrap</artifactId><version>5.2.3</version></dependency><dependency><groupId>org.webjars</groupId><artifactId>jquery</artifactId><version>3.6.4</version></dependency><!--日志 start--><dependency><groupId>ch.qos.logback</groupId><artifactId>logback-classic</artifactId><version>1.4.8</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.13.2</version><scope>test</scope></dependency><!-- jackson --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>${jackson.version}</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version>1.18.26</version><optional>true</optional></dependency></dependencies><build><finalName>ssm-spring6</finalName><resources><resource><directory>src/main/java</directory><includes><include>**/*.xml</include></includes><filtering>false</filtering></resource></resources></build>
</project>

二、配置文件

jdbc.driverClassName=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql:///ssm
jdbc.username=root
jdbc.password=root
#初始连接数量
initialSize=5
#最大连接数量
maxActive=10
#最大等待时间
maxWait=2000

三、实体类

package com.song.ssm.pojo;import lombok.Data;import java.io.Serializable;
import java.util.Date;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
@Data
public class Person implements Serializable {private long id;private String username;private String password;private Date birthday;private String mobile;private Integer sex;private String address;}

四、配置类

   4.1 数据源

package com.song.ssm.config;import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.PropertySource;import javax.sql.DataSource;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
@PropertySource("classpath:db.properties")
public class JdbcConfig {@Value("${jdbc.url}")private String url;@Value("${jdbc.driverClassName}")private String driver;@Value("${jdbc.username}")private String username;@Value("${jdbc.password}")private String password;@Value("${maxActive}")private Integer maxActive;@Value("${maxWait}")private long maxWait;@Value("${initialSize}")private Integer initSize;@Beanpublic DataSource dataSource(){DruidDataSource ds = new DruidDataSource();ds.setUsername(username);ds.setPassword(password);ds.setDriverClassName(driver);ds.setUrl(url);ds.setMaxActive(this.maxActive);ds.setInitialSize(this.initSize);ds.setMaxWait(this.maxWait);return ds;}
}

4.2 mybatis配置

package com.song.ssm.config;import com.github.pagehelper.PageHelper;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;import javax.sql.DataSource;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
public class MyBatisConfig {@Beanpublic SqlSessionFactoryBean getSessionFactoryBean(@Autowired DataSource ds) {SqlSessionFactoryBean sessionFactoryBean = new SqlSessionFactoryBean();sessionFactoryBean.setDataSource(ds);return sessionFactoryBean;}@Beanpublic MapperScannerConfigurer mapperScannerConfigurer(){MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();mapperScannerConfigurer.setBasePackage("com.song.ssm.mapper");return  mapperScannerConfigurer;}}

4.3 mvc

package com.song.ssm.config;import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
@Configuration
@EnableWebMvc
@ComponentScan("com.song.ssm.controller")
public class MvcConfig {
}

4.4 Spring容器

package com.song.ssm.config;import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
@Configuration
@Import({JdbcConfig.class, MyBatisConfig.class})
@ComponentScan("com.song.ssm.service")
public class SpringConfig {
}

4.5 Servlet初始化

package com.song.ssm.config;import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/public class ServletInitConfig extends AbstractAnnotationConfigDispatcherServletInitializer {@Overrideprotected Class<?>[] getRootConfigClasses() {return new Class[]{SpringConfig.class};}@Overrideprotected Class<?>[] getServletConfigClasses() {return new Class[]{MvcConfig.class};}@Overrideprotected String[] getServletMappings() {return new String[]{"/"};}
}

五、Mapper

package com.song.ssm.mapper;import com.song.ssm.pojo.Person;
import org.apache.ibatis.annotations.Select;import java.util.List;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
public interface PersonMapper {@Select("select * from t_person")List<Person> findAll();
}

六、业务层

package com.song.ssm.service;import com.song.ssm.pojo.Person;
import org.springframework.transaction.annotation.Transactional;import java.util.List;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
@Transactional
public interface PersonService {List<Person> findAll();
}
package com.song.ssm.service.impl;import com.song.ssm.mapper.PersonMapper;
import com.song.ssm.pojo.Person;
import com.song.ssm.service.PersonService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
@Service
public class PersonServiceImpl implements PersonService {@Autowiredprivate PersonMapper personMapper;@Overridepublic List<Person> findAll() {return this.personMapper.findAll();}
}

七、控制器

package com.song.ssm.controller;import com.song.ssm.pojo.Person;
import com.song.ssm.service.PersonService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;import java.util.List;/*** @Author 宋伟宁* @Date 2023/9/1* @Version 1.0**/
@RestController
public class HelloController {@Autowiredprivate PersonService personService;@GetMapping("/list")public List<Person> findAll() {return this.personService.findAll();}
}

页面效果：