spring boot 跨域请求

 

1. GlobalCorsConfig

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

/**
 * @author yaoyuan2
 * @date 2021-01-13
 */
@Configuration
public class GlobalCorsConfig {
    @Bean
    public WebMvcConfigurer corsConfigurer() {
        return new WebMvcConfigurer() {
            @Override
            public void addCorsMappings(CorsRegistry registry) {
                registry.addMapping("/**")    //添加映射路径，“/**”表示对所有的路径实行全局跨域访问权限的设置
                        .allowedOrigins("*")    //开放哪些ip、端口、域名的访问权限
                        .allowCredentials(true)  //是否允许发送Cookie信息
                        .allowedMethods("GET","POST", "PUT", "DELETE")     //开放哪些Http方法，允许跨域访问
                        .allowedHeaders("*")     //允许HTTP请求中的携带哪些Header信息
                        .exposedHeaders("Accept","Cache-Control", "Content-Language", "Content-Type", "Expires", "Last-Modified");   //暴露哪些头部信息（因为跨域访问默认不能获取全部头部信息）
            }
        };
    }
}

2. index.html，别放到项目里，直接本地电脑打开

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://unpkg.com/axios/dist/axios.min.js"></script>
</head>
<body>
<input type="button" value="跨域测试" onclick="btn();" />
<script >
function btn() {
  axios.get('http://localhost:8080/?name=遥远4').then(function(response) {
    alert(response);
  });
}
</script>
</body>
</html>

 

posted @ 2021-01-13 21:44  遥远2  阅读(95)  评论(0)  编辑  收藏  举报