Spring: 后端状态码如何与http状态码保持一致

一、背景

今天使用postman在做接口测试的时候发现了一个有趣的问题：响应体的status和http的status一样，出于好奇对该现象进行了总结。

二、解决方案

通过拦截器ResponseBodyAdvice，做到统一拦截

@ControllerAdvice(basePackages = "*.*.*")
@RestControllerAdvice(basePackages = "*.*.*")
public class GlobalBizResponseBodyAdvice implements ResponseBodyAdvice {

    @Override
    public boolean supports(MethodParameter methodParameter, Class aClass) {
        return true;
    }

    @Override
    public Object beforeBodyWrite(Object obj, MethodParameter methodParameter, MediaType mediaType, Class aClass, ServerHttpRequest serverHttpRequest, ServerHttpResponse serverHttpResponse) {
       if (obj instanceof BizResponse) {
       		int code = (int) ((BizResponse) body).getCode();
            response.setStatusCode(HttpStatus.valueOf(code));
			return obj;
       }
       response.setStatusCode(HttpStatus.valueOf(200));
        return BizResponse.success(obj);
    }