springboot解决跨域问题
![](https://img2023.cnblogs.com/blog/1914163/202301/1914163-20230110151513195-74810422.png)
package com.xxxx.demo.config; 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; /** * @ClassName CorsConfig * @Description springboot解决跨域问题 * @Author Lishipu * @Date 2023/1/9 21:16 * Version 1.0 **/ @Configuration public class CorsConfig { // 当前跨域请求最大有效时长。这里默认1天 private static final long MAX_AGE = 24 * 60 * 60; @Bean public CorsFilter corsFilter() { UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource(); CorsConfiguration corsConfiguration = new CorsConfiguration(); corsConfiguration.addAllowedOrigin("http://localhost:8080"); // 1 设置访问源地址 corsConfiguration.addAllowedHeader("*"); // 2 设置访问源请求头 corsConfiguration.addAllowedMethod("*"); // 3 设置访问源请求方法 corsConfiguration.setMaxAge(MAX_AGE); source.registerCorsConfiguration("/**", corsConfiguration); // 4 对接口配置跨域设置 return new CorsFilter(source); } }
如果发布到服务器中地址可能不是http://localhosst:8080,为了防止麻烦可以改成
corsConfiguration.addAllowedOrigin("*"); // 1 设置访问源地址