package com.yy.mp.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import com.baomidou.mybatisplus.annotation.DbType;
import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.PropertySource;

@Configuration
@MapperScan(basePackages = "com.yy.mp.mapper")
public class Config implements WebMvcConfigurer {
    @Autowired
    private CheckLoginInterceptor checkLoginInterceptor;

    /**
     * 拦截器配置
     * 具体拦截器配置在我博客搜索——拦截器
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(checkLoginInterceptor)
                .addPathPatterns("/**")
                .excludePathPatterns("/users/checkPhone")
                .excludePathPatterns("/users/sendVerifyCode")
                .excludePathPatterns("/users/regist")
                .excludePathPatterns("/users/login");
    }

	/**
     * 跨域访问
     * 具体跨域访问在我博客搜索——跨域
     */
    // 重写父类提供的跨域请求处理的接口
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        // 添加映射路径
        registry.addMapping("/**")
                // 放行哪些原始域
                // .allowedOrigins("*")
                .allowedOriginPatterns("*")
                // 是否发送 Cookie 信息
                .allowCredentials(true)
                // 放行哪些原始域（请求方式）
                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
                // 放行哪些原始域（头部信息）
                .allowedHeaders("*")
                // 暴露哪些头部信息（因为跨域访问默认不能获取全部头部信息）
                .exposedHeaders("Header1", "Header2");
    }

	/**
     * 配置分页插件
     */
    @Bean
    public MybatisPlusInterceptor mybatisPlusInterceptor() {
        MybatisPlusInterceptor interceptor = new MybatisPlusInterceptor();
        PaginationInnerInterceptor paginationInnerInterceptor = new PaginationInnerInterceptor(DbType.MYSQL);
        paginationInnerInterceptor.setOverflow(true); //合理化
        interceptor.addInnerInterceptor(paginationInnerInterceptor);
        return interceptor;
    }
}
``