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Spring boot 遇到前端報錯Access-Control-Allow-Origin 跨域問題

前端報錯 Access-Control-Allow-Origin 的前端問題解決:

在spring boot 服務中心新增一個配置檔案:

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

@Configuration  
public class CorsConfig extends WebMvcConfigurerAdapter {  

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

}