package com.bookstore.config;

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.pool.DruidDataSourceFactory;
import org.springframework.context.annotation.*;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;
import java.util.Properties;

/**
 * @Author BaiYZ
 * @Program BookStoreFrameWork
 * @Description Spring 配置类
 * @Date 2022-01-02 23:00:13
 */
@Configuration
@ComponentScan(value = "com.bookstore", excludeFilters = {@ComponentScan.Filter(type = FilterType.ANNOTATION, classes = Controller.class)})
@EnableAspectJAutoProxy(proxyTargetClass = false)
@EnableTransactionManagement()
public class SpringConfig {
    //注册数据库连接池
    @Bean
    public DruidDataSource getDataSource() {
        Properties dataSourceProperties = new Properties();
        try {
            dataSourceProperties.load(SpringConfig.class.getClassLoader().getResourceAsStream("dataSource.properties"));
            return (DruidDataSource) DruidDataSourceFactory.createDataSource(dataSourceProperties);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    //创建JDBCTemplate
    @Bean
    public JdbcTemplate getJdbcTemplate(DataSource dataSource) {
        JdbcTemplate jdbcTemplate = new JdbcTemplate();
        jdbcTemplate.setDataSource(dataSource);
        return jdbcTemplate;

    }

    //注册事务管理器
    @Bean
    public DataSourceTransactionManager getDataSourceTransactionManager(DataSource dataSource) {
        DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager();
        dataSourceTransactionManager.setDataSource(dataSource);
        return dataSourceTransactionManager;
    }
}

package com.bookstore.config;

import org.springframework.web.filter.CharacterEncodingFilter;
import org.springframework.web.filter.HiddenHttpMethodFilter;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

import javax.servlet.Filter;
import javax.servlet.annotation.WebFilter;
/*
在Servlet3.0环境中，容器会在类路径中查找实现javax.servlet.ServletContainerInitializer接口的类
如果找到的话就用它来配置Servlet容器。Spring提供了这个接口的实现，名为SpringServletContainerInitializer
这个类反过来又会查找实现WebApplicationInitializer的类并将配置的任务交给它们来完成。
Spring3.2引入了一个便利的WebApplicationInitializer基础实现，名为AbstractAnnotationConfigDispatcherServletInitializer
当我们的类扩展了AbstractAnnotationConfigDispatcherServletInitializer并将其部署到Servlet3.0容器的时候
容器会自动发现它，并用它来配置Servlet上下文。
*/
/**
 * @Author BaiYZ
 * @Program BookStoreFrameWork
 * @Description web.xml注解配置
 * @Date 2022-01-04 22:25:21
 */

public class WebInitConfig extends AbstractAnnotationConfigDispatcherServletInitializer {
    /**
     * @Description: 根配置就是配置Spring配置类
     * @Author: BaiYZ
     * @Date: 2022/1/4 22:26
     * @return: java.lang.Class<?>[]
     */
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[]{SpringConfig.class};
    }

    /**
     * @Description: 配置SpringMVC映射配置（配置控制器）
     * @Author: BaiYZ
     * @Date: 2022/1/4 22:28
     * @return: java.lang.Class<?>[]
     */
    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{SpringMVCConfig.class};
    }

    /**
     * @Description: 配置DispatcherServlet Mapping（配置控制器映射）URL-Pattern
     * @Author: BaiYZ
     * @Date: 2022/1/4 22:28
     * @return: java.lang.String[]
     */
    @Override
    protected String[] getServletMappings() {
        return new String[]{"/"};
    }

    /**
     * @Description: 注册过滤器
     * @Author: BaiYZ
     * @Date: 2022/1/4 22:35
     * @return: javax.servlet.Filter[]
     */
    @Override
    protected Filter[] getServletFilters() {
        //先配置编码过滤器
        CharacterEncodingFilter characterEncodingFilter = new CharacterEncodingFilter();
        characterEncodingFilter.setEncoding("UTF-8");
        characterEncodingFilter.setForceResponseEncoding(true);
        //隐藏请求分发过滤器，使用put delete post get不同请求分发请求
        HiddenHttpMethodFilter hiddenHttpMethodFilter = new HiddenHttpMethodFilter();
        return new Filter[]{characterEncodingFilter,hiddenHttpMethodFilter};
    }

}