[ This request has no response data available问题 ]

偏执的太偏执、 2023-09-30 17:04 13阅读 0赞

**目录**

前言:

提示背景:

问题导致情况:

跨域设置:

Canceled

--------------------

## 前言: ##

摸鱼来了

### 提示背景: ###

接口响应200

response返回提示:This request has no response data available

### 问题导致情况: ###

1: 确定是否是跨域引起, 一般情如果有跨域会报跨域错误。报无响应的比较少。

2: 浏览器端的代码问题了，然后发现问题请求的代码执行后，紧接着是页面刷新---立即刷新导致请求的response没有来得及加载造成的

3: 注意请求参数格式, 是否有异样

### 跨域设置: ###

import org.springframework.context.annotation.Configuration;
    import org.springframework.web.servlet.config.annotation.CorsRegistry;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
    
     
    @Configuration
    public class CorsEnableConfig implements WebMvcConfigurer {
        @Override
        public void addCorsMappings(CorsRegistry registry) {
            registry.addMapping("/**")
                    .allowedOriginPatterns("*")
                    .allowCredentials(true)
                    .allowedMethods("*");
        }
    }

比如发起一个异步请求且没有返回体，响应回复后直接刷新页面，发现问题完美复现，但是比如刻意增加延迟2秒，则显示为`This request has no response data available`.

#### Canceled ####

我们平时谈到的请求状态是围绕着请求回复成功握手，进而返回的哥哥状态。但初次之外还有些其它情况，比如上述这种，还有canceled状态，该状态一般是因为JS脚本中人工中断了请求，或者请求还在处理中，而页面刷新所造成的。

参考文档

[Failed to load response data | Attack on Life ⚔️][Failed to load response data _ Attack on Life]

*  [Chrome dev tools fails to show response even the content returned has header Content-Type:text/html; charset=UTF-8][Chrome dev tools fails to show response even the content returned has header Content-Type_text_html_ charset_UTF-8]

[Failed to load response data _ Attack on Life]: https://www.1991421.cn/2020/06/30/e4eb807a/
[Chrome dev tools fails to show response even the content returned has header Content-Type_text_html_ charset_UTF-8]: https://stackoverflow.com/questions/38924798/chrome-dev-tools-fails-to-show-response-even-the-content-returned-has-header-con/38925237#38925237