Node.js 使用膝关节炎2的命名参数不在节点中路由

我回顾并遵循以下指南：

尝试使用命名参数时，我发现404未找到。我错过了什么

server.js

const Koa = require('koa');
const router = require('./routes');

const app = new Koa()

app.use(router);

app.listen(8080);

module.exports = app;

routes/index.js

const combineRouters = require('koa-combine-routers');
const paramRouter = require('./param');

const router = combineRouters([
  paramRouter
])

module.exports = router;

routes/param.js

const Router = require('koa-router');
const router = new Router()

router.get('/noParam/', async (ctx, next) => {
    ctx.body = ctx
});

router.get('/param/:jsonObj', async (ctx, next) => {
    ctx.body = ctx.params.jsonObj;
});

module.exports = router;

package.json

"dependencies": {
    "iorejson": "^0.1.1",
    "koa": "^2.2.0",
    "koa-combine-routers": "^1.0.0",
    "koa-router": "^7.1.1",
}

GEThttp://localhost:8080/noParam

->200

---

GEThttp://localhost:8080/param?jsonObj=foo

->404

我用来调用的方法是错误的

GEThttp://localhost:8080/param/foo

->200