cors

Springboot跨域

倾然丶 夕夏残阳落幕 提交于 2020-01-31 05:17:49
这一次让咋们搞定跨域!(第一节) 技术栈 java端: springboot springmvc h2(这个是数据库,为了显得有仪式感哈哈,不想弄这个可以在Controller直接返回Stirng就行) web端 vue axios (在vue中如何用axios) 那么就让我们现在开始吧 可以看到浏览器的控制台已经报错了,根据第一节跨域常见的错误可以知道是因为服务器端后台没有允许OPTIONS请求 那么服务器后端如何允许options请求呢 sprng官方已经给大家作了指导,建议大家还是应该静下心来去看看官方的文档 地址点击这里 ,如何时间不多或者英文不好直接看这篇文章也行 启用CORS (Controller Method CORS Configuration)控制器方法CORS配置 (Global CORS configuration)全局CORS配置 我的controller是这么写的 注意现在是不能进行跨域请求的 @RestController public class TestController { @Autowired private TestService testService; @RequestMapping("/test") private List quertCoffee(){ return testService.showDate(); } }

CORS Error: “requests are only supported for protocol schemes: http…” etc

懵懂的女人 提交于 2020-01-30 13:10:28
问题 I am trying to a simple application. I have an Express backend which, returns a JSON string when visited at localhost:4201/ticker . When I run the server and, make a request to this link from my Angular Service over http , I get the following error: XMLHttpRequest cannot load localhost:4201/ticker. Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, https. I read the following article: Understanding and Using CORS and, as stated, used the cors

Request header field Access-Control-Allow-Methods is not allowed by Access-Control-Allow-Headers in preflight response

最后都变了- 提交于 2020-01-30 08:57:06
问题 I'm using Angular in the frontend and Jersey for backend. I am getting an exception when I execute my PUT request. This is the Angular code: const header=new Headers({'Content-Type':'application/x-www-form-urlencoded'}); header.append("Access-Control-Allow-Methods", "POST"); header.append("Access-Control-Allow-Headers","Access-Control-Allow-Origin"); return this.http.post('http://localhost:8080',home,{headers: header}) .pipe(map((response: Response)=>{return response.json();})); This is my

Request header field Access-Control-Allow-Methods is not allowed by Access-Control-Allow-Headers in preflight response

蹲街弑〆低调 提交于 2020-01-30 08:56:26
问题 I'm using Angular in the frontend and Jersey for backend. I am getting an exception when I execute my PUT request. This is the Angular code: const header=new Headers({'Content-Type':'application/x-www-form-urlencoded'}); header.append("Access-Control-Allow-Methods", "POST"); header.append("Access-Control-Allow-Headers","Access-Control-Allow-Origin"); return this.http.post('http://localhost:8080',home,{headers: header}) .pipe(map((response: Response)=>{return response.json();})); This is my

Response header not showing

我怕爱的太早我们不能终老 提交于 2020-01-29 20:37:13
问题 I am building a simple web app using ReactJS and create-react-app . I have a backend API set up on Heroku where I can make POST requests. Everything works fine, except: When I make a POST request using fetch API, the response is 100% correct but it only gives me 2 standard headers. I want to get my custom header. I have added expose header in my response and here's the plot twist: When I view the headers from Chrome Inspection Tool or Postman (API tool), it shows all the headers, including my

SpringBoot后端跨域-配置cors

蓝咒 提交于 2020-01-29 12:35:57
cors CORS,全称Cross-Origin Resource Sharing ,是一种允许当前域(domain)的资源被其他域(domain)的脚本请求访问的机制,通常由于同域安全策略(the same-origin security policy)浏览器会禁止这种跨域请求。 配置类CorsConfig package com . base . config ; import org . springframework . context . annotation . Bean ; import org . springframework . context . annotation . Configuration ; import org . springframework . web . cors . CorsConfiguration ; import org . springframework . web . cors . UrlBasedCorsConfigurationSource ; import org . springframework . web . filter . CorsFilter ; /** * @ClassName CorsConfig * @Decription * @Author Kalinda * @Date 2020/1/29 8:57

WebApi 跨域解决方案 --CORS

好久不见. 提交于 2020-01-27 22:18:52
跨站HTTP请求(Cross-site HTTP request)是指发起请求的资源所在域不同于请求指向的资源所在域的HTTP请求。 比如说,我在Web网站A(www.a.com)中通过<img>标签引入了B站的资源(www.b.com/images/1.jpg),那么A站会向B站发起一个跨站请求。 这种图片资源的跨站请求是被允许的,类似的跨站请求还有CSS文件,JavaScript文件等。 但是如果是在脚本中发起HTTP请求,出于安全考虑,会被浏览器限制。比如,使用 XMLHttpRequest 对象发起 HTTP 请求就必须遵守 同源策略 。 所谓“同源策略”是指Web应用程序只能使用 XMLHttpRequest 对象向发起源所在域内发起HTTP请求,这个请求源和请求对象必须在一个域内。 举例来说,http://www.a.com,这个网址的协议是http,域名是www.a.com,端口默认是80。那么以下是它的同源情况: http://www.a.com/index.html 同源 https://www.a.com/a.html 不同源(协议不同) http://service.a.com/testService/test 不同源(域名不同) http://www.b.com/index.html 不同源(域名不同) http://www.a.com:8080/index

跨域资源共享 CORS 详解

馋奶兔 提交于 2020-01-26 10:16:11
一、简介 CORS需要浏览器和服务器同时支持。目前,所有浏览器都支持该功能,IE浏览器不能低于IE10。 整个CORS通信过程,都是浏览器自动完成,不需要用户参与。对于开发者来说,CORS通信与同源的AJAX通信没有差别,代码完全一样。浏览器一旦发现AJAX请求跨源,就会自动添加一些附加的头信息,有时还会多出一次附加的请求,但用户不会有感觉。 因此,实现CORS通信的关键是服务器。只要服务器实现了CORS接口,就可以跨源通信。 二、两种请求 浏览器将CORS请求分成两类:简单请求(simple request)和非简单请求(not-so-simple request)。 只要同时满足以下两大条件,就属于简单请求。 (1) 请求方法是以下三种方法之一: HEAD GET POST (2)HTTP的头信息不超出以下几种字段: Accept Accept-Language Content-Language Last-Event-ID Content-Type:只限于三个值application/x-www-form-urlencoded、multipart/form-data、text/plain 凡是不同时满足上面两个条件,就属于非简单请求。 浏览器对这两种请求的处理,是不一样的。 三、简单请求 3.1 基本流程 对于简单请求,浏览器直接发出CORS请求。具体来说,就是在头信息之中

$_POST is empty when axios send POST request CORS

纵然是瞬间 提交于 2020-01-26 03:57:06
问题 When I send POST request with json data in React app to PHP server, $_POST is empty. And also php://input doesn't work. I tried with following code. PHP server side: if($_SERVER['REQUEST_METHOD'] == "OPTIONS") { header('Access-Control-Allow-Origin: *'); header('Access-Control-Allow-Methods: POST, GET, OPTIONS'); header('Access-Control-Allow-Headers: Accept, Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization'); header('Access-Control-Max-Age: 1000'); header("Content

getting CORS error when redirecting with express server [duplicate]

a 夏天 提交于 2020-01-26 03:55:06
问题 This question already has answers here : “No 'Access-Control-Allow-Origin' header present on requested origin” error for res.redirect(“http://www.google.com”) (1 answer) “No 'Access-Control-Allow-Origin' header is present on the requested resource” error for response from http://www.google.com/ (1 answer) Closed 10 days ago . I've enabled cors on my node backend with one endpoint that doesn't return data but redirect to an external url. I'm getting Access to fetch at 'https://google.com/'