HttpGet 请求

 

 

import java.net.HttpURLConnection;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

import com.google.gson.Gson;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;
import com.google.gson.reflect.TypeToken;

public class Test {

    /**
     * @param args
     */
    public static void main(String[] args) {

        HttpClient httpClient = new DefaultHttpClient();
        String strResult = "";
        try {
            Date date = new Date();
            Calendar cal = Calendar.getInstance();
            cal.setTime(date);
            cal.add(Calendar.DATE, -1);
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
            String dateStr = sdf.format(cal.getTime());
            String url = "http://192.168.0.1:1234/test/getData?uid=12&date="
                    + dateStr;
            /* 建立HttpGet对象 */
            HttpGet httpget = new HttpGet(url);
            httpget.addHeader("request-key", "test-007"); // 请求访问key

            /* 发送请求并等待响应 */
            HttpResponse httpResponse = httpClient.execute(httpget);
            if (httpResponse.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {
                /* 读返回数据 */
                strResult = EntityUtils.toString(httpResponse.getEntity());

                /* json字符串转 list<T> */
                JsonParser jsonparer = new JsonParser();
                JsonElement je = null;
                je = jsonparer.parse(strResult);
                Object ob = je.getAsJsonObject().get("data");
                Gson gson = new Gson();
                List<TestPojo> picInfoList = gson.fromJson(ob.toString(),
                        new TypeToken<List<TestPojo>>() {
                        }.getType());

                for (TestPojo temp : picInfoList) {
                    System.out.println(temp.getTime());
                }

                System.out.println("--strResult:" + strResult);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 关闭连接 ,释放资源
            httpClient.getConnectionManager().shutdown();
        }
    }
}