markdown [根据当前请求域名创建url]使用UriComponentsBuilder根据当前请求的域名来创建新的url #java

Posted 2021-05-06

UriComponentsBuilder是org.springframework.web.util中的类

还可以根据情况配置path、query等

```java
String baseUrl = UriComponentsBuilder.newInstance()
                .scheme(request.getScheme())
                .port(request.getServerPort())
                .host(request.getServerName()).toUriString();
```