添加cors

package-lock.json

@@ -9,12 +9,14 @@
          "version": "0.0.1",
          "dependencies": {
             "body-parser": "^1.19.1",
+            "cors": "^2.8.5",
             "express": "^4.17.2",
             "mysql": "^2.14.1",
             "reflect-metadata": "^0.1.13",
             "typeorm": "0.3.17"
          },
          "devDependencies": {
+            "@types/cors": "^2.8.13",
             "@types/express": "^4.17.17",
             "@types/node": "^16.11.10",
             "ts-node": "10.7.0",
@@ -101,6 +103,15 @@
             "@types/node": "*"
          }
       },
+      "node_modules/@types/cors": {
+         "version": "2.8.13",
+         "resolved": "https://registry.npmmirror.com/@types/cors/-/cors-2.8.13.tgz",
+         "integrity": "sha512-RG8AStHlUiV5ysZQKq97copd2UmVYw3/pRMLefISZ3S1hK104Cwm7iLQ3fTKx+lsUH2CE8FlLaYeEA2LSeqYUA==",
+         "dev": true,
+         "dependencies": {
+            "@types/node": "*"
+         }
+      },
       "node_modules/@types/express": {
          "version": "4.17.17",
          "resolved": "https://registry.npmmirror.com/@types/express/-/express-4.17.17.tgz",
@@ -460,6 +471,18 @@
          "resolved": "https://registry.npmmirror.com/core-util-is/-/core-util-is-1.0.3.tgz",
          "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ=="
       },
+      "node_modules/cors": {
+         "version": "2.8.5",
+         "resolved": "https://registry.npmmirror.com/cors/-/cors-2.8.5.tgz",
+         "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+         "dependencies": {
+            "object-assign": "^4",
+            "vary": "^1"
+         },
+         "engines": {
+            "node": ">= 0.10"
+         }
+      },
       "node_modules/create-require": {
          "version": "1.1.1",
          "resolved": "https://registry.npmmirror.com/create-require/-/create-require-1.1.1.tgz",

package.json

@@ -4,6 +4,7 @@
    "description": "Awesome project developed with TypeORM.",
    "type": "commonjs",
    "devDependencies": {
+      "@types/cors": "^2.8.13",
       "@types/express": "^4.17.17",
       "@types/node": "^16.11.10",
       "ts-node": "10.7.0",
@@ -11,6 +12,7 @@
    },
    "dependencies": {
       "body-parser": "^1.19.1",
+      "cors": "^2.8.5",
       "express": "^4.17.2",
       "mysql": "^2.14.1",
       "reflect-metadata": "^0.1.13",

src/index.ts

@@ -3,12 +3,20 @@ import * as bodyParser from "body-parser"
 import { Request, Response } from "express"
 import { AppDataSource } from "./data-source"
 import { Routes } from "./routes"
+import * as cors  from "cors"
 
 AppDataSource.initialize().then(async () => {
 
     // create express app
     const app = express()
     app.use(bodyParser.json())
+    app.use(cors({
+        origin:[
+            "https://www.zziyu.cn",
+            "http://localhost:3000"
+        ],
+        credentials:true   //每次登陆都验证跨域请求,要不会每次报跨域错误
+    }));
 
     // register express routes from defined application routes
     Routes.forEach(route => {
@@ -48,3 +56,4 @@ AppDataSource.initialize().then(async () => {
     console.log("Express server has started on port 3501. Open http://localhost:3501/ to see results")
 
 }).catch(error => console.log(error))
+