使用httpclient调用get方式的api

GetExample.java

package client;

import java.io.IOException;
import java.net.URLEncoder;
import java.nio.charset.Charset;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
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;

/**
 * 调用get类型的接口，获取参数
 * 
 * @author weizhankui
 * 
 */
public class GetExample {
	public static void visitGetUrl() throws ClientProtocolException,
			IOException {
		HttpClient client = new DefaultHttpClient();
		// 编码
		String str = URLEncoder.encode("啊啊啊", "utf-8");
		HttpGet get = new HttpGet("http://localhost:8080/msg/testget/" + str
				+ "?apikey=apikey");

		HttpResponse response = client.execute(get);

		HttpEntity resEntity = response.getEntity();
		// 返回状态码
		StatusLine statusLine = response.getStatusLine();
		if (statusLine.getStatusCode() >= 300) {
			System.out.println("出错了" + statusLine.getReasonPhrase());
		}
		// 返回值
		if (resEntity != null) {
			System.out.println(new String(EntityUtils.toByteArray(resEntity),
					Charset.forName("utf-8")));
		}

	}

	public static void main(String[] args) {
		try {
			visitGetUrl();
		} catch (ClientProtocolException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}