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嗨，我用一个例子来缩短网址。但不能能够做到这一点，这是我的代码使用谷歌api缩短网址
package com.tinyurl;
import java.io.IOException;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import com.google.api.client.googleapis.GoogleHeaders;
import com.google.api.client.googleapis.GoogleTransport;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.GenericJson;
import com.google.api.client.json.JsonHttpContent;
import com.google.api.client.json.JsonHttpParser;
import com.google.api.client.util.GenericData;
public class tinyurl extends Activity implements OnClickListener {
EditText original;
TextView txt;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn = (Button) findViewById(R.id.Button01);
original = (EditText) findViewById(R.id.edittext);
txt = (TextView) findViewById(R.id.TextView03);
btn.setOnClickListener(this);
}
@Override
public void onClick(View v) {
final String GOOGL_URL = "https://www.googleapis.com/urlshortener/v1/url?key=AIzaSyAau1E_WrYwMiTNqhK5hgH0tyWudyahbOI";
String tinyUrl = null;
String original = "http://www.google.com/";
HttpTransport transport = GoogleTransport.create();
GoogleHeaders defaultHeaders = new GoogleHeaders();
transport.defaultHeaders = defaultHeaders;
transport.defaultHeaders.put("Content-Type", "application/json");
transport.addParser(new JsonHttpParser());
HttpRequest request = transport.buildPostRequest();
request.setUrl(GOOGL_URL);
GenericData data = new GenericData();
// data.put("longUrl", "http://www.google.com/");
data.put("longUrl", original);
JsonHttpContent content = new JsonHttpContent();
content.data = data;
request.content = content;
HttpResponse response = null;
try {
response = request.execute();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
Log.d("eception occured", e.toString());
}
Result result = null;
try {
result = response.parseAs(Result.class);
Log.d("TinyUrl", result.shortUrl.toString());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public class Result extends GenericJson {
public String shortUrl;
}
}
但事情是我在日志得到的是的java.net.UnknownHostException：www.googleapis.com