Android的，Java的：HTTP POST请求 [英] Android, Java: HTTP POST Request

问题描述

我必须做一个HTTP POST请求的Web服务进行身份验证的用户名和密码的用户。在Web服务的家伙给了我下面的信息来构建HTTP POST请求。

I have to do a http post request to a web-service for authenticating the user with username and password. The Web-service guy gave me following information to construct HTTP Post request.

POST /login/dologin HTTP/1.1
Host: webservice.companyname.com
Content-Type: application/x-www-form-urlencoded
Content-Length: 48

id=username&num=password&remember=on&output=xml

XML响应，我会越来越为

The XML Response that i will be getting is

<?xml version="1.0" encoding="ISO-8859-1"?>
<login>
 <message><![CDATA[]]></message>
 <status><![CDATA[true]]></status>
 <Rlo><![CDATA[Username]]></Rlo>
 <Rsc><![CDATA[9L99PK1KGKSkfMbcsxvkF0S0UoldJ0SU]]></Rsc>
 <Rm><![CDATA[b59031b85bb127661105765722cd3531==AO1YjN5QDM5ITM]]></Rm>
 <Rl><![CDATA[[e-mail]]]></Rl>
 <uid><![CDATA[3539145]]></uid>
 <Rmu><![CDATA[f8e8917f7964d4cc7c4c4226f060e3ea]]></Rmu>
</login>

这是我在做什么HttpPost postRequest =新HttpPost（urlString）;我如何构造参数的休息吗？

This is what i am doing HttpPost postRequest = new HttpPost(urlString); How do i construct the rest of the parameters?

推荐答案

下面是一个例子$ P $在的 androidsnippets.com （该网站目前没有维护了）。

Here's an example previously found at androidsnippets.com (the site is currently not maintained anymore).

// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php");

try {
    // Add your data
    List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
    nameValuePairs.add(new BasicNameValuePair("id", "12345"));
    nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!"));
    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

    // Execute HTTP Post Request
    HttpResponse response = httpclient.execute(httppost);

} catch (ClientProtocolException e) {
    // TODO Auto-generated catch block
} catch (IOException e) {
    // TODO Auto-generated catch block
}

所以，你可以为 <$ C $添加参数C> BasicNameValuePair <​​/ code> 。

另一种方法是使用（HTTP）的URLConnection 。另请参见<一个href="http://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests">Using java.net.URLConnection中火和处理HTTP请求的。这实际上是在新的Andr​​oid版本（姜饼+）的preferred方法。另请参见这个博客，<一个href="http://developer.android.com/about/versions/marshmallow/android-6.0-changes.html#behavior-apache-http-client"相对=nofollow>此开发文档和Android的 的HttpURLConnection 的javadoc 。

An alternative is to use (Http)URLConnection. See also Using java.net.URLConnection to fire and handle HTTP requests. This is actually the preferred method in newer Android versions (Gingerbread+). See also this blog, this developer doc and Android's HttpURLConnection javadoc.

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