2

app.js

@@ -1,6 +1,6 @@
 const Koa = require("koa");
 const requter = require("./bin/router.js");
-dbs = require("./bin/mongodb.js")('mongodb://localhost:27017/ceshikaoshi',"ceshikaoshi")
+dbs = require("./bin/mongodb.js")('mongodb://localhost:27017/',"ceshikaoshi")
 // console.log(requter)
 // import requter from "./bin/router"
 const app = new Koa();
@@ -41,8 +41,13 @@ app.use(async (ctx, next) => {
     // getResponseHeader('myData')可以返回我们所需的值
     //https://www.rails365.net/articles/cors-jin-jie-expose-headers-wu
     ctx.set("Access-Control-Expose-Headers", "myData");
+    if(ctx.method == "OPTIONS"){
+    ctx.body = ""
 
+    }else{
     await next();
+
+    }
 })
 app.use(async (ctx,next)=>{
     // await next();

bin/router.js

@@ -6,11 +6,11 @@ function addMapping(router, mapping) {
         if (url.startsWith('GET ')) {
             var path = url.substring(4);
             router.get(path, mapping[url]);
-            // console.log(`register URL mapping: GET ${path}`);
+            console.log(`register URL mapping: GET ${path}`);
         } else if (url.startsWith('POST ')) {
             var path = url.substring(5);
             router.post(path, mapping[url]);
-            // console.log(`register URL mapping: POST ${path}`);
+            console.log(`register URL mapping: POST ${path}`);
         } else {
             console.log(`invalid URL: ${url}`);
         }

controllers/index.js

@@ -76,8 +76,35 @@ let findshop = async (ctx, next) => {
     ctx.body = await dbs.find("shop")
 }
 
+let logins = async(ctx,next)=>{
+    let {user , pwd} = ctx.request.body
+    console.log(123)
+    if(user == "admin" && pwd == "123"){
+        ctx.body = JSON.stringify({
+            code: 200,
+            msg:"登录成功",
+            data:{
+                name:"admin",
+                age:18,
+                quxain: "admin"
+            }
+        })
+    }else{
+        ctx.body = JSON.stringify({
+            code: 200,
+            msg:"登录成功",
+            data:{
+                name:"user",
+                age:18,
+                quxain: "user"
+            }
+        })
+    }
+}
+
 module.exports = {
     "GET /":index,
     "POST /addshop": addshop,
-    "GET /findshop": findshop
+    "GET /findshop": findshop,
+    "POST /login": logins
 }