如何在Java中解析或拆分URL地址?

时间:2013-07-19 01:25:19

标签: java android facebook-graph-api

如果我有网址。

https://graph.facebook.com/me/home?limit=25&since=1374196005

我可以获取(或拆分)参数(避免硬编码)吗?

喜欢这个

https /// graph.facebook.com /// me / home /// {limit = 25, sincse = 1374196005}

3 个答案:

答案 0 :(得分:43)

使用Android的Uri课程。 http://developer.android.com/reference/android/net/Uri.html

Uri uri = Uri.parse("https://graph.facebook.com/me/home?limit=25&since=1374196005");
String protocol = uri.getScheme();
String server = uri.getAuthority();
String path = uri.getPath();
Set<String> args = uri.getQueryParameterNames();
String limit = uri.getQueryParameter("limit");

答案 1 :(得分:7)

如上所述,您可以使用.split()。

像这样:

 String url = "http://stackoverflow.com/questions/thispost/";
 String[] separated = newurl.split("/");
 separated[0]; // = http:
 separated[1]; // = (nothing, i.e, empty string, `""`)
 separated[2]; // = stackoverflow.com
 separated[3]; // = questions
 separated[4]; // = thispost

答案 2 :(得分:1)

对于纯Java,我认为这段代码应该有效:

import java.net.URL;
import java.net.URLDecoder;
import java.util.HashMap;
import java.util.Map;

public class UrlTest {
    public static void main(String[] args) {
        try {
            String s = "https://graph.facebook.com/me/home?limit=25&since=1374196005";
            URL url = new URL(s);
            String query = url.getQuery();
            Map<String, String> data = new HashMap<String, String>();
            for (String q : query.split("&")) {
                String[] qa = q.split("=");
                String name = URLDecoder.decode(qa[0]);
                String value = "";
                if (qa.length == 2) {
                    value = URLDecoder.decode(qa[1]);
                }

                data.put(name, value);
            }
            System.out.println(data);
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

}