springMVC写法

最近再了解一些springMVC写法，我知道现在最新的注释写法，但是现在很多厂子都还在用些配置文件.xml来进行配置这种写法。

我最近熟悉的注释写法，但是还是要看看xml写法的。

SpringConfig代码：

package com.daitu.config;

import org.springframework.context.annotation.*;


@Configuration
@ComponentScan({"com.daitu.service"})
@PropertySource("classpath:/jdbc.properties")
@Import({JdbcConfig.class, MybatisConfig.class})
public class SpringConfig {
}

SpringMvconfig代码：

package com.daitu.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;

//创建springmvc的配置文件，加载controller对应的bean
@Configuration
@ComponentScan("com.daitu.controller")
@EnableWebMvc
public class SpringMvcConfig {
}

ServletConfig代码：

package com.daitu.config;


import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class ServletConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[]{SpringConfig.class};
    }

    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{SpringMvcConfig.class};
    }

    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }
}

JdbcConfig代码：

package com.daitu.config;

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;

import javax.sql.DataSource;

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 DataSource dataSource() {
        DruidDataSource dataSource = new DruidDataSource();

        dataSource.setDriverClassName(driver);
        dataSource.setUrl(url);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        return dataSource;
    }
}

MybatisConfig代码：

package com.daitu.config;


import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.context.annotation.Bean;

import javax.sql.DataSource;

public class MybatisConfig {
   @Bean
   public SqlSessionFactoryBean sessionFactoryBean(DataSource dataSource)
   {
      SqlSessionFactoryBean factoryBean =new SqlSessionFactoryBean();
      factoryBean.setDataSource(dataSource);
      factoryBean.setTypeAliasesPackage("com.daitu.domain");
      return factoryBean;
   }
   @Bean
   public MapperScannerConfigurer mapperScannerConfigurer()
   {
MapperScannerConfigurer msc =new MapperScannerConfigurer();
msc.setBasePackage("com.daitu.dao");
      return msc;
   }
}