GET方式从服务器获取数据

来源：互联网发布：java科学计算框架编辑：程序博客网时间：2024/05/14 14:15

<span style="font-size:18px;">import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import org.apache.http.client.ClientProtocolException;//从服务器获取数据public class HttpUtils1{public static void main(String[] args) throws ClientProtocolException, IOException{String path = "http://localhost:8080/day01";InputStream in = HttpUtils2.getInputStream(path);System.out.println(HttpUtils2.getResult(in, "utf-8"));}//得到能获取服务器数据的读取流public static InputStream getInputStream(String path) throws IOException{URL url = new URL(path);HttpURLConnection con = (HttpURLConnection) url.openConnection();con.setRequestMethod("GET");con.setConnectTimeout(5000);con.setDoInput(true);InputStream in =null;if(con.getResponseCode()==200){in = con.getInputStream();}return in;}//通过读取流把服务器数据读到本地内存public static String getResult(InputStream in,String code) throws IOException{ByteArrayOutputStream baos = new ByteArrayOutputStream();byte[] b = new byte[1024];int len=0;while((len=in.read(b))!=-1){baos.write(b,0,len);}return new String(baos.toByteArray(),code);}}</span>

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