HTML5 服务器发送事件(Server

 if (window.hasOwnProperty("EventSource")) {
    // url 接口
    let source = new EventSource(
      "https://api.baichuan-ai.com/v1/chat/completions"
    );
    // 当发生错误
    source.onerror = function () {
      console.log("error");
    };
    // 当通往服务器的连接被打开
    source.onopen = function () {
      console.log("连接成功");
    };
    // 当接收到消息
    source.onmessage = function (event) {
      console.log("服务器推送数据", event.data);
    };
  }

  import { EventSourcePolyfill } from "event-source-polyfill";
  // url 接口
  let source = new EventSourcePolyfill(
    "https://api.baichuan-ai.com/v1/chat/completions",
    {
      headers: {
        Authorization: "token",
      },
    }
  );
  // 当发生错误
  source.onerror = function () {
    console.log("error");
  };
  // 当通往服务器的连接被打开
  source.onopen = function () {
    console.log("连接成功");
  };
  // 当接收到消息
  source.onmessage = function (event) {
    console.log("服务器推送数据", event.data);
  };

import { fetchEventSource } from "@microsoft/fetch-event-source";
 let es = new fetchEventSource(
    "https://api.baichuan-ai.com/v1/chat/completions",
    {
      headers: {
        Authorization: "token值",
        withCredentials: true,
        "Content-Type": "application/json",
      },
      method: "post",
      // 参数
      body: JSON.stringify({
        username: "LIIIIII",
        password: "123456",
      }),
      onmessage(event) {
        console.log(event.data);
      },
      onerror() {
        console.log("erroe");
      },
    }
  );