node.js - axios PUT 不更新数据

Question

我有一个VueJS应用程序，它使用Axios将一个对象PUT到服务器。目标是更新数据库中的该对象。该对象已存在于数据库中，但使用 PUT 发回的对象有一些已更改的数据。这些更改就是我想要更新到数据库的内容。应用程序运行时不会出现错误消息，但数据库中的数据永远不会更新。

Client side

onUpload(): void {
    this.chosenRoute.name = this.routeName;
    this.chosenRoute.text.paragraphs[0] = this.routeDescription;
    this.chosenRoute.text.preamble = this.preamble;
    if(this.activity != "") this.chosenRoute.activity = this.activity;

    axios.put('http://localhost:8080/route/' + this.selectedRoute, JSON.stringify(this.chosenRoute), {
      onUploadProgress: uploadEvent => {
        console.log('Upload Progress' + Math.round(uploadEvent.loaded / uploadEvent.total) * 100 + " %");
      }
    }).then(res => {
      console.log(res);
    });
  }

Server side

app.put('/route/:id', function(req, res, next) {
    const routeId = req.params.id;
    res.set("Access-Control-Allow-Origin", "*");
    Route.update({'_id':routeId}, req.body, function(result) {
        return res.send(result);
    });
});

Answer 1

我认为你不应该使用 JSON.stringify 所以你的代码应该如下所示:

axios.put(`http://localhost:8080/route/${this.selectedRoute}`, this.chosenRoute, {
  onUploadProgress: uploadEvent => {
    console.log('Upload Progress' + Math.round(uploadEvent.loaded / uploadEvent.total) * 100 + " %");
  }
}).then(res => {
  console.log(res);
});

希望对您有帮助!