多个参数在 NodeJS Express 中不起作用

Question

我有网址：

POST http:/host/core/api/v1/endpoints/create/:name/:description/:address

我正在使用 Express NodeJS。此 url 将创建一个带有参数属性的端点。但是......当我尝试使用参数请求时，我收到了错误：

Error: Not Implemented
   at router.use (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\controllers\api.js:517:14)
   at Layer.handle [as handle_request] (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\layer.js:95:5)
   at trim_prefix (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\index.js:312:13)
   at D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\index.js:280:7
   at Function.process_params (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\index.js:330:12)
   at next (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\index.js:271:10)
   at Function.handle (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\index.js:176:3)
   at router (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\index.js:46:12)
   at Layer.handle [as handle_request] (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\layer.js:95:5)
   at trim_prefix (D:\Study\NodeJS\ProjectEnviromentMonitoring\EnvironmentMonitoring\node_modules\express\lib\router\index.js:312:13)

如果成功，这是 JSON 将返回：

{
   "message": "success",
   "statuscode": 200
}

这是我的测试：

POST http://localhost:8082/core/api/v1/endpoints/create/endpoint3/abc/def

更新：我获取参数的代码是：

router.route('/endpoints/create/:name/:description/:address').post((req, res) => {
var name = req.params.name;
var description = req.params.description;
var address = req.params.address;
 }

Answer 1

您描述的错误很可能与您如何将路由器连接到 express 应用程序有关。您在上面发布的代码 sn-p 工作正常。

下面是一个工作示例。

var express = require('express')
var app = express();
var router = express.Router();

router.route('/endpoints/create/:name/:description/:address').post((req, res) => {
    var name = req.params.name;
    var description = req.params.description;
    var address = req.params.address;
    console.log({ name: name, desc: description, address: address });
    res.json({
        "message": "success",
        "statuscode": 200
    });
});

app.use(router);
app.listen(3000, function () {
    console.log('Example app listening on port 3000!')
});

测试：curl -X POST http://localhost:3000/endpoints/create/test/hello/world

Answer 2

为什么不直接使用 req.parameter 以便您可以使用常用字符（'?' 和 '&'）获得完整的上下文？例如，您可以简单地这样做：

var host = req.param('host');
var name = req.param('name');
var description = req.param('description');

并像http://localhost:8082/something?host=$VAR_HOST&name=$VAR_NAME&description=$VAR_DESCRIPTION 一样访问它