跨域问题解决

解决方案1
SpringBoot 中添加跨域配置类 CorsConfig

package com.example.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

/** * 解决跨域问题 */
@Configuration
public class CorsConfig implements WebMvcConfigurer {
    

    @Override
    public void addCorsMappings(CorsRegistry registry) {
    
        registry.addMapping("/**")
                .allowedOriginPatterns("*")
                .allowedMethods("GET", "HEAD", "POST", "PUT", "DELETE", "OPTIONS")
                .allowCredentials(true)
                .maxAge(3600)
                .allowedHeaders("*");

    }
}