Java URLConnection.getOutputStream方法代码示例

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * Sends the request and returns the response.
 * 
 * @return String
 */
public String send() throws Exception {
    URLConnection con = this.url.openConnection();
    con.setDoOutput(true);

    OutputStreamWriter out = new OutputStreamWriter(con.getOutputStream());
    out.write(this.body);
    out.close();

    BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
    String response = "";
    String buffer;
    while ((buffer = in.readLine()) != null) {
        response += buffer;
    }
    in.close();
    return response;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
private String shareAndGetResponse(String selection, int languageDropdownId) throws IOException {
    URL url = new URL("http://pastie.org/pastes");
    URLConnection conn = url.openConnection();
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    conn.setDoOutput(true);
    OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());

    String data = "paste[parser_id]=" + languageDropdownId +
            "&paste[authorization]=burger&paste[restricted]=1&paste[body]=" + URLEncoder.encode(selection, "UTF-8");
    writer.write(data);
    writer.flush();
    writer.close();

    StringBuffer answer = loadResponse(conn);
    return answer.toString();
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * Performs an HTTP POST request.
 * @param url The request URL.
 * @param query The request payload, in string form.
 * @param auth The content of the Authorization header.
 * @return The response of the request in string form.
 */
public static String post(String url, String query, String auth) {
	try {
		
		URLConnection conn = open(url, auth);
		OutputStream output = conn.getOutputStream();
		output.write(query.getBytes(charset));
		output.close();
		
		InputStream response = conn.getInputStream();

		String outputStr = null;
		if (charset != null) {
			BufferedReader reader = new BufferedReader(new InputStreamReader(response, charset));
			for (String line; (line = reader.readLine()) != null;) {
				outputStr = line;
			}
			reader.close();
		}
		return outputStr;
		
	} catch (IOException e) {
		e.printStackTrace();
		return null;
	}
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public static String post(URLConnection connection,
                          String stringWriter,
                          Credentials credentials) throws Exception {

   connection.setDoInput(true);
   connection.setDoOutput(true);
   connection.setRequestProperty("Authorization",
                                 "Basic "
                                       + Base64.encode((credentials.getUserName() + ":" + new String(
                                             credentials.getPassword())).getBytes()));
   OutputStreamWriter postData = new OutputStreamWriter(connection.getOutputStream());
   postData.write(stringWriter);
   postData.flush();
   postData.close();

   BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
   String response = "";
   String line = "";
   while ((line = in.readLine()) != null)
      response = response + line;
   in.close();

   return response;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * Posts string data (i.e. JSON string) to the specified URL 
 * connection.
 *
 * @param con  The URL connection. Must be in HTTP POST mode. Must not 
 *             be {@code null}.
 * @param data The string data to post. Must not be {@code null}.
 *
 * @throws JSONRPC2SessionException If an I/O exception is encountered.
 */
private static void postString(final URLConnection con, final String data)
	throws JSONRPC2SessionException {
	
	try {
		OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream(), "UTF-8");
		wr.write(data);
		wr.flush();
		wr.close();

	} catch (IOException e) {

		throw new JSONRPC2SessionException(
				"Network exception: " + e.getMessage(),
				JSONRPC2SessionException.NETWORK_EXCEPTION,
				e);
	}
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public String postYbApi(String apiName,String query) throws IOException {
    String url = "https://openapi.yiban.cn/" + apiName;
    String charset = "UTF-8";
    URLConnection connection = new URL(url).openConnection();
    connection.setRequestProperty("Accept-Charset", charset);
    connection.setDoOutput(true);
    connection.setDoInput(true);

    PrintWriter out = new PrintWriter(connection.getOutputStream());
    out.print(query);
    out.flush();
    InputStream response = connection.getInputStream();
    StringBuilder sb=new StringBuilder();
    BufferedReader br = new BufferedReader(new InputStreamReader(response));
    String read;

    while((read=br.readLine()) != null) {
        sb.append(read);
    }
    br.close();
    return sb.toString();
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * Performs a raw private API query.
 * @param method the REST resource
 * @param postParam the JSON to send in the request body.
 * @return result JSON
 */
//Thanks to sampey from https://www.cryptopia.co.nz/Forum/Thread/262
private String privateApiQuery(String method, String postParam) {
    if (secretKey == null) {
        throw new CryptopiaClientException("Please set your secret key before attempting " +
                "to access any private API methods.");
    }
    if (key == null) {
        throw new CryptopiaClientException("Please set your key before attempting " +
                "to access any private API methods.");
    }
    BufferedReader in = null;
    try {
        final String urlMethod = String.format("%s/%s/%s", ROOT_URL, PRIVATE_PATH, method);
        final String nonce = String.valueOf(System.currentTimeMillis());
        final StringBuilder reqSignature = new StringBuilder();
        reqSignature
                .append(key)
                .append("POST")
                .append(URLEncoder.encode(urlMethod, StandardCharsets.UTF_8.toString()).toLowerCase())
                .append(nonce)
                .append(getMD5_B64(postParam));
        final StringBuilder auth = new StringBuilder();
        auth.append("amx ")
                .append(key)
                .append(":")
                .append(sha256_B64(reqSignature.toString()))
                .append(":")
                .append(nonce);
        final URLConnection con = new URL(urlMethod).openConnection();
        con.setDoOutput(true);
        final HttpsURLConnection httpsConn = (HttpsURLConnection) con;
        httpsConn.setRequestMethod("POST");
        httpsConn.setInstanceFollowRedirects(true);
        con.setRequestProperty("Authorization", auth.toString());
        con.setRequestProperty("Content-Type", "application/json");
        final DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(postParam);
        wr.flush();
        wr.close();
        in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        String inputLine;
        StringBuilder response = new StringBuilder();
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        return response.toString();
    }catch (Exception e) {
        throw new CryptopiaClientException("An error occurred communicating with Cryptopia.", e);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException ignored) {}
        }
    }
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
private void sendButtonActionPerformed(java.awt.event.ActionEvent evt)//GEN-FIRST:event_sendButtonActionPerformed
{//GEN-HEADEREND:event_sendButtonActionPerformed
    try
    {
        // Construct data
        String data = URLEncoder.encode("messages", "UTF-8") + "=" + URLEncoder.encode(logTextarea.getText(), "UTF-8");
        // Send data
        URL url = new URL("http://unimozer.fisch.lu/boot.php?who=moenagade");
        URLConnection conn = url.openConnection();
        conn.setDoOutput(true);
        OutputStreamWriter wr = new OutputStreamWriter(conn.getOutputStream());
        wr.write(data);
        wr.flush();
        // Get the response
        BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String line;
        while ((line = rd.readLine()) != null) {
            // Process line... --> do nothing
        }
        wr.close();
        rd.close();
    } 
    catch (Exception ex)
    {
        // ignore
    }
    this.dispose();
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * Performs any additional processing necessary to complete the request.
 **/
protected void completeRequest( URLConnection connection ) throws IOException {
    super.completeRequest( connection );
    connection.setDoInput( true );
    connection.setDoOutput( true );

    OutputStream stream = connection.getOutputStream();
    writeMessageBody( stream );
    stream.flush();
    stream.close();
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public static final byte[] post(String url, String data, Map<String, String> headers) {
	try {
		URLConnection conn = new URL(url).openConnection();
		conn.setDoOutput(true);

		if (headers != null) {
			for (Map.Entry<String, String> entry : headers.entrySet()) {
				conn.setRequestProperty(entry.getKey(), entry.getValue());
			}
		}
		OutputStream os = conn.getOutputStream();
		OutputStreamWriter wr = new OutputStreamWriter(os);
		wr.write(data);
		wr.flush();
		wr.close();
		os.close();
		System.out.println("HTTP Response headers: " + conn.getHeaderFields());
		List<String> header = conn.getHeaderFields().get("Content-Disposition");
		if (header != null && header.size() > 0) {
			headers.put("Content-Disposition", header.get(0));
		}
		header = conn.getHeaderFields().get("Content-Type");
		if (header != null && header.size() > 0) {
			headers.put("Content-Type", header.get(0));
		}
		InputStream is = conn.getInputStream();
		byte[] result = IOUtils.toByteArray(is);
		is.close();
		return result;
	} catch (Exception e) {
		throw new RuntimeException(e);
	}
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
private String doPlipPost() throws IOException {
    String boundary = Long.toHexString(System.currentTimeMillis());
    String crlf = "\r\n";

    String login = Base64.getEncoder().encodeToString(PLIP_REST_PROVIDER_CREDENTIALS.getBytes());
    URLConnection connection = new URL(plipUrl).openConnection();
    connection.setDoOutput(true);
    connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
    connection.setRequestProperty("Authorization", "Basic " + login);

    OutputStream output = connection.getOutputStream();
    PrintWriter writer = new PrintWriter(new OutputStreamWriter(output, CHARSET), true);
    writer.append("--").append(boundary).append(crlf);
    writer.append("Content-Disposition: form-data; name=\"file\"; filename=\"").append(pdbFilePath.getFileName().toString()).append("\"").append(crlf);
    writer.append("Content-Type: text/plain; charset=" + CHARSET).append(crlf); // Text file itself must be saved in this charset!
    writer.append(crlf).flush();
    Files.copy(pdbFilePath, output);
    output.flush();
    writer.append(crlf).flush();
    writer.append("--").append(boundary).append("--").append(crlf).flush();

    int responseCode = ((HttpURLConnection) connection).getResponseCode();
    logger.info("PLIP REST service response code is " + responseCode);

    BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    String outputContent;
    StringBuilder response = new StringBuilder();

    while ((outputContent = in.readLine()) != null) {
        response.append(outputContent);
    }
    in.close();

    return response.toString();
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
/**
 * Performs any additional processing necessary to complete the request.
 **/
protected void completeRequest( URLConnection connection ) throws IOException {
    ((HttpURLConnection) connection).setRequestMethod( getMethod() );
    connection.setDoInput( true );
    connection.setDoOutput( true );

    OutputStream stream = connection.getOutputStream();
    writeMessageBody( stream );
    stream.flush();
    stream.close();
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public static OutputStream createOutputStream(String uri) throws IOException {
    // URI was specified. Handle relative URIs.
    final String expanded = XMLEntityManager.expandSystemId(uri, null, true);
    final URL url = new URL(expanded != null ? expanded : uri);
    OutputStream out = null;
    String protocol = url.getProtocol();
    String host = url.getHost();
    // Use FileOutputStream if this URI is for a local file.
    if (protocol.equals("file")
            && (host == null || host.length() == 0 || host.equals("localhost"))) {
        File file = new File(getPathWithoutEscapes(url.getPath()));
        if (!file.exists()) {
            File parent = file.getParentFile();
            if (parent != null && !parent.exists()) {
                parent.mkdirs();
            }
        }
        out = new FileOutputStream(file);
    }
    // Try to write to some other kind of URI. Some protocols
    // won't support this, though HTTP should work.
    else {
        URLConnection urlCon = url.openConnection();
        urlCon.setDoInput(false);
        urlCon.setDoOutput(true);
        urlCon.setUseCaches(false); // Enable tunneling.
        if (urlCon instanceof HttpURLConnection) {
            // The DOM L3 REC says if we are writing to an HTTP URI
            // it is to be done with an HTTP PUT.
            HttpURLConnection httpCon = (HttpURLConnection) urlCon;
            httpCon.setRequestMethod("PUT");
        }
        out = urlCon.getOutputStream();
    }
    return out;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public String post(String url, String params) {
	String result = "";
	try {
		URL realUrl = new URL(url);
		// 打开和URL之间的连接
		URLConnection conn = realUrl.openConnection();
		// 设置通用的请求属性
		conn.setRequestProperty("accept", "*/*");
		conn.setRequestProperty("connection", "Keep-Alive");
		// conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible;
		// MSIE 6.0; Windows NT 5.1;SV1)");
		// 发送POST请求必须设置如下两行
		conn.setDoOutput(true);
		conn.setDoInput(true);

		// 获取URLConnection对象对应的输出流
		try (PrintWriter out = new PrintWriter(conn.getOutputStream())) {
			// 发送请求参数
			out.print(params);
			// flush输出流的缓冲
			out.flush();
		}

		// 定义BufferedReader输入流来读取URL的响应
		try (BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()))) {
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
		}
	} catch (Exception e) {
		throw new ZhhrUtilException("发送POST请求出现异常！原因：" + e.getMessage());
	}
	return result;
}
 

import java.net.URLConnection; //导入方法依赖的package包/类
public PropBagEx invoke(BlackBoardSessionData data, String servlet, String name, Collection<NameValue> parameters)
	throws IOException
{
	long startTime = System.currentTimeMillis();

	BlindSSLSocketFactory.register();

	// Setup URLConnection to appropriate servlet/jsp
	URLConnection con = new URL(this.url, servlet).openConnection();

	con.setConnectTimeout(TIMEOUT);
	con.setReadTimeout(TIMEOUT);

	con.setDoInput(true);
	con.setDoOutput(true);

	String token = data.getBlackBoardSession();
	// BB7 contains '@@'
	final int expectedTokenLength = PASS_LENGTH + (token.startsWith("@@") ? 2 : 0);
	if( token.length() == expectedTokenLength )
	{
		con.setRequestProperty("Cookie", "session_id=" /* @@" */+ token + ";");
	}

	// Open output stream and send username and password
	PrintWriter conout = new PrintWriter(con.getOutputStream());
	StringBuilder out = new StringBuilder();
	out.append("method=" + name + "&");

	if( parameters != null )
	{
		for( NameValue pair : parameters )
		{
			out.append(pair.getValue() + "=" + encode(pair.getName()) + "&");
		}
	}

	conout.print(out.toString());
	conout.close();

	InputStream in = con.getInputStream();

	PropBagEx xml = parseInputStream(in);
	String cookie = con.getHeaderField("Set-Cookie");
	if( cookie == null )
	{
		Map<String, List<String>> headerFields = con.getHeaderFields();
		if( headerFields != null && !Check.isEmpty(headerFields.get("Set-Cookie")) )
		{
			cookie = headerFields.get("Set-Cookie").get(0);
		}
	}

	xml.setNode("cookie", cookie);

	in.close();

	int buildingBlockDuration = xml.getIntNode("@invocationDuration", -1);
	int thisMethodDuration = (int) ((System.currentTimeMillis() - startTime) / 1000);

	StringBuilder sb = new StringBuilder("URL request from EQUELLA to Blackboard took ");
	sb.append(thisMethodDuration);
	sb.append(" second(s), where ");
	sb.append(buildingBlockDuration);
	sb.append(" second(s) where spent in the Building Block");

	LOGGER.info(sb.toString());

	return xml;
}