修改为前后端分离模式

router/index.js

@@ -0,0 +1,58 @@
+const Router = require("koa-router")
+const { getQqListData } = require("../util/getList/qq")
+const KoaSSEStream = require('koa-sse-stream');
+const { dowload } = require("../util/download");
+
+const router = new Router()
+const dowloadlist = []
+
+router.get("/getQqList",async (ctx)=>{
+    let url = ctx.query.url
+    let list = await getQqListData(url)
+    ctx.body = list
+})
+
+router.get("/startDown",async (ctx)=>{
+    let title = ctx.query.title
+    let url = ctx.query.url
+    dowloadlist.push({
+        title,url
+    })
+    // startDown()
+    ctx.body={
+        code:0,
+        msg:"添加成功"
+    }
+})
+// 连接池
+const clientList = [];
+// koa-sse-stream 配置
+const SSE_CONF = {
+    maxClients: 5, // 最大连接数
+    pingInterval: 40000 // 重连时间
+}
+router.get('/msg', KoaSSEStream(SSE_CONF), ctx => {
+    // 每次连接会进行一个 push
+    clientList.push(ctx.sse);
+})
+let start = false
+function startDown(){
+    
+    dowload(dowloadlist[0],(data,isok)=>{
+        clientList.forEach((i)=>{
+            i.send(isok ? `${dowloadlist[0]}下载完成` : data )
+            if(isok){
+                dowloadlist.shift()
+            }
+        })
+    })
+}
+setInterval(()=>{
+    if(dowloadlist.length != 0 && !start){
+        start = true
+        startDown()
+    }else if(dowloadlist.length == 0){
+        start = false
+    }
+},1000)
+module.exports = router