Spring React 和 Sessions .. 如何保持会话 [英] Spring React and Sessions.. how to keep session

问题描述

我已经设置了我的 spring 来维护一个对象上的 HTTP 会话，如下所示:

I have set up my spring to maintain a HTTP session on an object like so:

@Component
@SessionScope
public class Basket { .. }

控制器:

@PostMapping(path="/basket/addItem/{user}", consumes = "application/json", produces = "application/json")
public Basket createBasket(@PathVariable String user, @RequestBody Item item) {
    System.out.println("POSTING..................................");
    return basketService.addItem(user, item);       
}

现在，当我使用 REST 客户端时，在 firefox 中我可以看到会话 bean 是在持续时间内创建和维护的 - 多次调用.我可以附加到对象.如果我尝试另一个客户端，它会使用自己的 bean 获得自己的会话.太好了..

now when i use a REST client, in firefox i can see that the session bean is created and maintained for the duration - multiple calls. I can append to the object. If i try another client, it gets its own session with its own bean. great..

spring 记录以下内容:

spring logs the following:

 Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [269] milliseconds.

然而，我试图在 React 中创建一个基本的前端，当 React 使用 axios 发出请求时，它每次都会获得一个新的 bean，这意味着会话必须在每次调用后结束.那是正确的吗?或者我没有将它绑定到反应应用程序...

However im trying to create a basic front end in react, when react makes a request using axios it gets a new bean every time, which means that the session must be ending after each call. IS that correct? or im not tying it to the react application...

也许我采取的方法不正确，也许我应该使用不同的方法，我正在尝试了解 spring boot，所以它是一个基本项目......现在我想维护购物车的用户会话.所以后续调用我可以附加到对象...

Maybe the approach im taking is not correct, maybe i should use a a different approach, Im trying to learn about spring boot, so its a basic project... and right now i want to maintain user session for a cart. so subsequent calls i can append to the object...

推荐答案

通过将以下内容添加到我的控制器中，一切都开始工作了.

by adding the following to my controller it all began to work.

@CrossOrigin(origins = { "http://localhost:3000" }, allowedHeaders = "*", allowCredentials = "true")

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