SSM（SpringMVC+spring+mybatis）整合的步骤以及相关依赖 - IT评测·应用市场-qidao123.com技术社区

<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.3.14</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.3.14</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.6</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.3.14</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.8</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.6</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.28</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.0</version>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.2.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.28</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.1</version>
<configuration>
<port>80</port>
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>

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import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.PropertySource;
/**
* Spring配置类，用于定义Spring应用上下文的配置
* 该类使用多个注解来实现不同的配置功能
*/
@Configuration
// 指定Spring在启动时自动扫描的包路径，以便进行组件扫描和自动装配
@ComponentScan("com.xxx.service")
// 指定配置文件的位置，此处为JDBC的属性配置文件
@PropertySource("classpath:jdbc.properties")
// 导入其他配置类，以便将MyBatis和JDBC的配置整合到当前配置中
@Import({MybatisConfig.class, JdbcConfig.class})
public class SpringConfig {
}

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jdbc.url=jdbc:mysql://localhost:3306/mysql?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC
jdbc.driver=com.mysql.jdbc.Driver
jdbc.username=root
jdbc.password=123456

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import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
public class JdbcConfig {
@Value("${jdbc.driver}")
private String driver;
@Value("${jdbc.url}")
private String url;
@Value("${jdbc.username}")
private String username;
@Value("${jdbc.password}")
private String password;
@Bean
public DruidDataSource dataSource(){
DruidDataSource druidDataSource = new DruidDataSource();
druidDataSource.setDriverClassName(driver);
druidDataSource.setUrl(url);
druidDataSource.setUsername(username);
druidDataSource.setPassword(password);
return druidDataSource;
}
}

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import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.context.annotation.Bean;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import javax.sql.DataSource;
public class MybatisConfig {
@Bean
public SqlSessionFactoryBean sqlSessionFactory(DataSource dataSource) throws Exception {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource);
//扫描mapper映射文件
sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml"));
// 开启驼峰命名和下划线命名的自动转换
sqlSessionFactoryBean.getObject().getConfiguration().setMapUnderscoreToCamelCase(true);
sqlSessionFactoryBean.setTypeAliasesPackage("com.xxx.pojo");
return sqlSessionFactoryBean;
}
@Bean
public MapperScannerConfigurer mapperScannerConfigurer(){
MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
mapperScannerConfigurer.setBasePackage("com.xxx.mapper");
return mapperScannerConfigurer;
}
}

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import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
/**
* ServletReplaceConfig 类继承自 AbstractAnnotationConfigDispatcherServletInitializer，
* 用于配置 Spring 的 DispatcherServlet 初始化参数.
* 该类主要用于定义根配置类和Servlet配置类，以及映射Servlet到特定的请求路径.
*/
public class ServletReplaceConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
/**
* 获取根配置类.
* 这些配置类通常包含全局的配置信息，比如数据库连接池配置、服务配置等.
*
* @return Class<?>[] 返回一个包含根配置类的数组.
*/
@Override
protected Class<?>[] getRootConfigClasses() {
// 返回包含SpringConfig配置类的数组
return new Class[]{SpringConfig.class};
}
/**
* 获取Servlet配置类.
* 这些配置类通常包含Web相关的配置信息，比如视图解析器配置、静态资源处理等.
*
* @return Class<?>[] 返回一个包含Servlet配置类的数组.
*/
@Override
protected Class<?>[] getServletConfigClasses() {
// 返回包含SpringMvcConfig配置类的数组
return new Class[]{SpringMvcConfig.class};
}
/**
* 获取Servlet的映射路径.
* 这里定义了DispatcherServlet处理的请求路径，"/"表示处理所有路径的请求.
*
* @return String[] 返回一个包含Servlet映射路径的数组.
*/
@Override
protected String[] getServletMappings() {
// 返回包含根路径映射的数组，意味着拦截所有请求
return new String[]{"/"};
}
}

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import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
/**
* Spring MVC配置类
* 该类使用@Configuration注解标记为一个配置类，替代XML配置文件
* 通过@ComponentScan注解指定Spring组件扫描的包路径，自动检测并注册为Bean
* 使用@EnableWebMvc注解启用Spring MVC的配置支持
*/
@Configuration
@ComponentScan({"com.minyudie.controller", "com.minyudie.config"})
@EnableWebMvc
public class SpringMvcConfig {
// 类定义结束
}

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