如何在Angular2中将JSON转换为查询字符串? [英] How to convert JSON to query string in angular2?

问题描述

我是Angular2的新手.我有一个JSON对象，如下所示:

I'm new to Angular2. I have a JSON object, as below:

var options = {
  param1: "parama1",
  param2: "parama2",
  param3: "parama3"
};

应转换为查询字符串并附加到外部URL以重定向页面，如下所示:

which should convert to query string and append to an external URL to redirect the page like below:

ngOnInit(){
     window.location.href = someurl?param1=param1&param2=param2&param3=param3;
}

我正在寻找一种将其转换为查询字符串的方法.在JQuery中，$.param()和AngularJS $httpParamSerializerJQLike()都可以用于此目的.我已经搜索过，但一无所获.我想知道在angular2中有什么方法可以做到这一点.

I'm looking for a way to convert it to query string. In JQuery, $.param() and in AngularJS $httpParamSerializerJQLike() are there for this. I'd searched, but I got nothing. I want to know is there any way to do it in angular2.

推荐答案

没有字符串concats的更官方"方法:

A more 'official' method without the string concats:

import {URLSearchParams} from '@angular/http'
let options = {
  param1: "param1",
  param2: "param2",
  param3: "param3"
};

let params = new URLSearchParams();
for(let key in options){
    params.set(key, options[key]) 
}

console.log("http://someUrl?" + params.toString());

这会自动编码.

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