Angular 2的JQuery .param（）方法？ [英] JQuery .param() method for Angular 2?

问题描述

JQuery for Angular2是否有类似 $ .param（）的功能？

Is there anything like this $.param() function from JQuery for Angular2?

我知道Angular 1具有类似的服务， Angular1等效

I know Angular 1 specifically has a service like it, Angular1 Equivalent

我检查了Angular 2网站这里他们有一个POST的演示，但他们发送一个JSON的身体请求。

I have checked the Angular 2 site here and they have a demo of a POST but they send a JSON in the body of the request.

我当前的，不工作的，尝试

My current, non working, attempt

saveEdits() {
    let headers = new Headers({ 'Content-Type': 'application/x-www-form-urlencoded' });
    let options = new RequestOptions({ headers: headers });
    this._http.post("ajax/update-thingy", JSON.stringify(this.dataJson), options)
        .map(this.extractData)
        .toPromise()
        .catch(this.handleError);
    // update in Angular 1 using JQuery function
    // $http({
    //     method : 'POST',
    //     url  : 'ajax/update-thingy',
    //     data : $.param($scope.formData),
    //     headers: {'Content-Type': 'application/x-www-form-urlencoded'}
    // }); 
}

extractData(res: Response) {
    let body = res.json();
    if (body === 'failed') {
        body = [];
    }
    return body || [];
}
private handleError(error: any) {
    // In a real world app, we might use a remote logging infrastructure
    // We'd also dig deeper into the error to get a better message
    let errMsg = (error.message) ? error.message :
      error.status ? `${error.status} - ${error.statusText}` : 'Server error';
    console.error(errMsg); // log to console instead

    return Promise.reject(errMsg);
}

或者如果在Angular2中更容易获得JQuery，也许这是一种方式去吧。

Or if it is easier to get JQuery in my Angular2 maybe that is a way to go.

更新

我确实解决了自己的问题。请参阅我的答案下面！

I did solve my own issue. Please see my answer below!

推荐答案

我解决了自己的问题。

这是我做的，我用过 URLSearchParams 。它运作得非常好。一点都不复杂且易于使用。

Here is what I did, I used URLSearchParams from Angular 2. It has worked out pretty well. Not at all complicated and easy to use.

import { Headers, RequestOptions, Http, URLSearchParams } from '@angular/http';

saveEdits() {
    let headers = new Headers({ 'Content-Type': 'application/x-www-form-urlencoded' });
    let options = new RequestOptions({ headers: headers });
    let params: URLSearchParams = this.serialize(this.myObj);
    this._http.post("ajax/update-thingy", params, options)
        .map(this.extractData)
        .toPromise()
        .catch(this.handleError);
    this.selectedBill = null;
}

serialize(obj: any) {
    let params: URLSearchParams = new URLSearchParams();


    for (var key in obj) {
        if (obj.hasOwnProperty(key)) {
            var element = obj[key];

            params.set(key, element);
        }
    }

    return params;
}

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