一、報(bào)錯內(nèi)容如下：

Failed to load http://192.168.1.111:8888/console/good/front/classList: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘http://localhost:8081’ is therefore not allowed access. If an opaque response serves your needs

二、在后臺添加如下文件

@Configuration

public class MvcConfigimplements WebMvcConfigurer {

@Override

? ? public void addCorsMappings(CorsRegistry registry) {

// 這里匹配了所有的URL，允許所有的外域發(fā)起跨域請求，允許外域發(fā)起請求任意HTTP Method，允許跨域請求包含任意的頭信息。

? ? ? ? registry.addMapping("/**")

.allowedHeaders("*")

.allowedMethods("*")

.allowedOrigins("*")

.allowCredentials(true);

}

}

即可解決，當(dāng)然也可以在nginx設(shè)置