Spring配置Java Style

子容器的配置：创建SpringMVCConfig类

父容器的配置：创建RootConfig、SpringDAOConfig、SpringServiceConfig

web.xml: 改为定义了一个WebConfig

SpringMVCConfig: 

package com.wgc.persons.spring;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.EnableAspectJAutoProxy;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ViewResolverRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration  //表示配置文件
@EnableWebMvc //表示这是一个子容器
@ComponentScan("com.wgc.persons.controller") //扫描controller层
@EnableAspectJAutoProxy //扫描@Aspect注解
public class SpringMVCConfig implements WebMvcConfigurer {

    
    @Override
    public void configureViewResolvers(ViewResolverRegistry registry) {
        registry.jsp("/WEB-IFN/jsp/", ".jsp");
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

SpringDAOConfig：

package com.wgc.persons.spring.root;

import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.mapper.MapperScannerConfigurer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.EnvironmentAware;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;

import javax.sql.DataSource;
import java.beans.PropertyVetoException;
import java.io.IOException;

@Configuration
/*@ComponentScan(basePackages = "dynamicProxy.instanceJDBC7")*/ //测试AOP
//@ComponentScan(basePackages = "transaction.instance1")
//@EnableAspectJAutoProxy /*启用@Aspect类*/
//@EnableTransactionManagement/*启用事务*/
public class SpringDAOConfig implements EnvironmentAware {

    @Value("${jdbc.driver}")
    private String driver;

    @Value("${jdbc.url}")
    private String url;

    @Value("${jdbc.user}")
    private String user;

    @Value("${jdbc.password}")
    private String password;

    @Autowired
    private Environment env;

    @Bean
    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
        return new PropertySourcesPlaceholderConfigurer();
    }

    @Bean
    public DataSource dataSource() throws PropertyVetoException {
        ComboPooledDataSource dataSource = new ComboPooledDataSource();
        dataSource.setDriverClass(env.getProperty("jdbc.driver"));
        dataSource.setJdbcUrl(env.getProperty("jdbc.url"));
        dataSource.setUser("root");
        dataSource.setPassword("123456");
        return  dataSource;
    }

    @Bean
    public SqlSessionFactoryBean sqlSessionFactoryBean() throws IOException, PropertyVetoException {
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        factoryBean.setTypeAliasesPackage("com.wgc.persons.entity");
        factoryBean.setMapperLocations(resolver.getResources("classpath:mapper/*.xml"));
        factoryBean.setConfigLocation(new ClassPathResource("mybatis-config.xml"));
        factoryBean.setDataSource(dataSource());
        return factoryBean;
    }

    @Bean
    public MapperScannerConfigurer mapperScannerConfigurer() {
        MapperScannerConfigurer configurer = new MapperScannerConfigurer();
        configurer.setBasePackage("com.wgc.persons.dao");
        configurer.setSqlSessionFactoryBeanName("sqlSessionFactoryBean");
        return configurer;
    }

    /*事务*/
    @Bean
    public PlatformTransactionManager platformTransactionManager() throws PropertyVetoException {
        DataSourceTransactionManager manager = new DataSourceTransactionManager();
        manager.setDataSource(dataSource());
        return manager;
    }
    @Override
    public void setEnvironment(Environment environment) {
        this.env = environment;
    }
}

SpringServiceConfig：

package com.wgc.persons.spring.root;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

@Configuration  //配置文件
@ComponentScan("com.wgc.persons.service")   //扫描service层
public class SpringServiceConfig {

}

RootConfig：

package com.wgc.persons.spring.root;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.context.annotation.PropertySource;

@Configuration
@ComponentScan(basePackages = "com.wgc.persons.spring.root")
@PropertySource(value = "classpath:jdbc.properties")　　//获取resources包的下的jdbc连接方式
@Import({SpringDAOConfig.class, SpringServiceConfig.class})
public class RootConfig {

}

WebConfig

package com.wgc.persons.spring.web;

import com.wgc.persons.spring.SpringMVCConfig;
import com.wgc.persons.spring.root.RootConfig;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class WebConfig extends AbstractAnnotationConfigDispatcherServletInitializer {

    /*父容器*/
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[]{RootConfig.class};
    }


    /*子容器   */
    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{SpringMVCConfig.class};
    }

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

github上有直接去下载就可以了