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refer :
https://angular.cn/docs/ts/latest/guide/server-communication.html
https://xgrommx.github.io/rx-book/index.html
概念上没什么太多的区别.
下面记入一些例子和小区别 :
不同的地方 :
1.不支持 upload file (游览器的 xhr 可以很容易的通过 send formData 实现 ajax upload), ng2 没有
2.不支持 ng1 的 interceptor 拦截和 transformations (要自己实现可以试着继承 http 服务来扩展)
3.默认结合rxjs (也可以很容易的转化回熟悉的 Promise)
提醒:
1.XSRF 和 ng1 一模一样
2.ng2 有一个内存 WebAPI 服务 ( in-memory web api service ),可以模拟后端的 Web API 服务器
例子 :
1.Headers and Params
let headers = new Headers({ "myHeader": "myValue" }); headers.append("yourHeader", "yourValue"); let params = new URLSearchParams(); params.set(‘myParam‘, ‘myValue‘); let options = new RequestOptions({ headers: headers, search: params }); this.http.get("/api/products", options).toPromise().then((response) => { console.log(response.json()); });
2.POST
let body = JSON.stringify({ code : "mk200" }); let headers = new Headers({ ‘Content-Type‘: ‘application/json‘ }); let options = new RequestOptions({ headers: headers }); this.http.post("/api/products", body, options).toPromise().then((response) => { //do something... });
3.get CSV
let options = new RequestOptions({ responseType: ResponseContentType.Text }); this.http.get("/demo.csv", options).toPromise().then((response) => { console.log(response.text()); });
4.by request
let options = new RequestOptions({ method: RequestMethod.Post, url: "/api/products", headers: new Headers({ ‘Content-Type‘: ‘application/json‘ }), body: JSON.stringify({ code: "mk200" }) }); this.http.request(new Request(options)).toPromise().then((response) => { //do something... });
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原文地址:http://www.cnblogs.com/keatkeat/p/5814708.html