SSM achieve rapid integration

1. Project integration of resources to achieve

Preface:

   笔者是基于注解方式实现的SSM整合

Required for the project depend on:

the required jar package can go https://mvnrepository.com/ download.

1.1 Configuration Architecture Analysis

FIG architecture configuration:

● SpringRepositoryConfig layer is responsible for data configuration
● SpringServiceConfig layer is responsible for service configuration
● SpringWevConfig layer is responsible for handling the request (control and view layers) disposed
● WebInitializer is responsible for initiating the initialization (corresponding web.xml file)
created configuration class :

//数据层配置类
package com.wtl.common.config;
@Configuration
@MapperScan("com.wtl.goods.dao")//扫描dao
public class SpringRepositoryConfig {
}

//业务层配置类
package com.wtl.common.config;
@Configuration
@ComponentScan("com.wtl.goods.service")
public class SpringServiceConfig {
	
}

//控制层配置类
package com.wtl.common.config;
@Configuration
@EnableWebMvc
@ComponentScan("com.wtl.goods.controller")
public class SpringWebConfig implements WebMvcConfigurer{

}

//启动类配置->web.xml
package com.wtl.common.config;
public class WebInitializer extends 
AbstractAnnotationConfigDispatcherServletInitializer {
	//Service,Repository
	@Override
	protected Class<?>[] getRootConfigClasses() {
		System.out.println("getRootConfigClasses()");
		return new Class[] {SpringRepositoryConfig.class,
SpringServiceConfig.class};
	}
	//View,Controller
	@Override
	protected Class<?>[] getServletConfigClasses() {
		System.out.println("getServletConfigClasses()");
		return new Class[] {SpringWebConfig.class};
	}
	//过滤
	@Override
	protected String[] getServletMappings() {
		System.out.println("getServletMappings()");
		return new String[] {"/"};
	}

}

1.2 Integration object connection pool

ps: I used this connection pool is DruidDataSource

Add dataSource in SpringRepositoryConfig class () method, create DruidDataSource objects in the method, and the object is to manage this spring.

@Bean(value="druid",initMethod="initing",destroyMethod="closed")
	public DruidDataSource dataSource() {
		DruidDataSource ds=new DruidDataSource();
		ds.setUrl("jdbc:mysql:///dbgoods?serverTimezone=GMT%2B8");
		ds.setUsername("root");
		ds.setPassword("root");
		return ds;
	}

1.3 integration framework mybatis

Add to create a method SqlSessionFactory objects created in SpringRepositoryConfig class.

@Bean("sqlSessionFactory")
	public SqlSessionFactory sqlSessionFactory(
			DataSource dataSource) 
			throws Exception {
	  //创建SqlSessionFactoryBean对象
	  SqlSessionFactoryBean factoryBean =
	  new SqlSessionFactoryBean();
	  factoryBean.setDataSource(dataSource);
	  //调用FactoryBean的getObject方法创建SqlSessionFactory
	  //底层会使用SqlSessionFactoryBuilder创建
	  return factoryBean.getObject();
	}

1.4 Spring MVC integration module

Add disposed SpringWebConfig view resolution configuration class, the default configuration servlet processing.

package com.wtl.common.config;

@Configuration 
@ComponentScan("com.wtl.goods.controller")
@EnableWebMvc //<mvc:annotation-driven/>
public class SpringWebConfig implements WebMvcConfigurer{
	//<mvc:default-servlet-handler/>
	@Override
	public void configureDefaultServletHandling(
			DefaultServletHandlerConfigurer configurer) {
		configurer.enable();
	}
	@Override
	public void configureViewResolvers(
		ViewResolverRegistry registry) {
		registry.jsp("/WEB-INF/pages/",".html");
	}
}

SSM integration is complete, the next small business partners since you can write a module, I wish you would become a great God.