java url get和post提交

java url post提交
public static String sendPost(String url, String param) {
		String result = "";
		try {
			URL httpurl = new URL(url);
			HttpURLConnection httpConn = (HttpURLConnection) httpurl
					.openConnection();
			httpConn.setDoOutput(true);
			httpConn.setDoInput(true);
			PrintWriter out = new PrintWriter(httpConn.getOutputStream());
			out.print(param);
			out.flush();
			out.close();
			BufferedReader in = new BufferedReader(new InputStreamReader(
					httpConn.getInputStream()));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
			in.close();
		} catch (Exception e) {
			System.out.println("没有结果!" + e);
		}
		return result;
	}
java url get提交
public static String sendGet(String url, String param) {
		String result = "";
		try {
			String urlName = url + "?" + param;//

			URL U = new URL(urlName);
			URLConnection connection = U.openConnection();
			connection.connect();

			BufferedReader in = new BufferedReader(new InputStreamReader(
					connection.getInputStream()));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
			in.close();
		} catch (Exception e) {
			System.out.println("没有结果!" + e);
		}
		return result;
	}

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