<!-- 解决前后端接口交互跨域问题 --><dependency><groupId>com.thetransactioncompany</groupId><artifactId>cors-filter</artifactId><version>1.7</version></dependency><dependency><groupId>com.thetransactioncompany</groupId><artifactId>java-property-utils</artifactId><version>1.9</version></dependency>

package com.sinosoft.config;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;import java.util.ArrayList;
import java.util.List;@Configuration
public class WebMvcConfigurer extends WebMvcConfigurerAdapter {private static final Logger LOGGER = LoggerFactory.getLogger(WebMvcConfigurer.class);/*** 添加拦截器 目的是拦截前端过来的请求** @param registry*/public void addInterceptors(InterceptorRegistry registry) {registry.addInterceptor(new RequestLog()).addPathPatterns("/**");super.addInterceptors(registry);}/*** 初始化过滤器*/@Beanpublic FilterRegistrationBean filterRegistrationBean() {FilterRegistrationBean registrationBean = new FilterRegistrationBean();MyFilter httpBasicFilter = new MyFilter();registrationBean.setFilter(httpBasicFilter);List<String> urlPatterns = new ArrayList<String>();urlPatterns.add("*");registrationBean.setUrlPatterns(urlPatterns);return registrationBean;}/*** 解决前端跨域请求* <p>* 简单跨域就是GET，HEAD和POST请求，但是POST请求的"Content-Type"只能是application/x-www-form-urlencoded, multipart/form-data 或 text/plain* <p>* 反之，就是非简单跨域，此跨域有一个预检机制，说直白点，就是会发两次请求，一次OPTIONS请求，一次真正的请求** @return*/@Beanpublic CorsFilter corsFilter() {LOGGER.info("开启CorsFilter，解决前后端分离模式接口交互跨域问题");final UrlBasedCorsConfigurationSource urlBasedCorsConfigurationSource = new UrlBasedCorsConfigurationSource();final CorsConfiguration corsConfiguration = new CorsConfiguration();corsConfiguration.setAllowCredentials(true);// 允许cookies跨域corsConfiguration.addAllowedOrigin("*");// #允许向该服务器提交请求的URI，*表示全部允许，在SpringMVC中，如果设成*，会自动转成当前请求头中的OrigincorsConfiguration.addAllowedHeader("*");// #允许访问的头信息,*表示全部corsConfiguration.setMaxAge(18000L);// 预检请求的缓存时间（秒），即在这个时间段里，对于相同的跨域请求不会再预检了corsConfiguration.addAllowedMethod("*");//允许所有的请求方式urlBasedCorsConfigurationSource.registerCorsConfiguration("/**", corsConfiguration);return new CorsFilter(urlBasedCorsConfigurationSource);}
}