1、如果只是一個簡單的springboot demo，用以下設定就行
新建config類別
```
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
/**
* @author yk
* @date 2021/7/19 14:36
*/
@Configuration
public class WebConfig implements WebMvcConfigurer {
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**")
.allowedOriginPatterns("*")
.allowedMethods("*")
.maxAge(3600)
.allowCredentials(true);
}
}
```2、但是實際開發中我們需要結合，spring-security、oauth2等等，就會發現上面的配置失效了，那是因為前面的Filter優先權太高了，那我們可以採取如下配置
```
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
/**
* @author yk
* @date 2021/7/19 16:21
*/
@Configuration
public class CrosConfig {
@Bean
public FilterRegistrationBean corsFilter() {
CorsConfiguration config = new CorsConfiguration();
config.setAllowCredentials(true);
config.addAllowedOriginPattern("*");
config.addAllowedHeader("*");
config.addAllowedMethod("*");
UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
source.registerCorsConfiguration("/**", config);
FilterRegistrationBean bean = new FilterRegistrationBean(new CorsFilter(source));
//这里设置优先级最高
bean.setOrder(Ordered.HIGHEST_PRECEDENCE);
return bean;
}
}以上是springboot2.4跨域配置問題怎麼解決的詳細內容。更多資訊請關注PHP中文網其他相關文章！
