Example usage for java.net HttpURLConnection setUseCaches

Introduction

In this page you can find the example usage for java.net HttpURLConnection setUseCaches.

Prototype

public void setUseCaches(boolean usecaches) 

Source Link

Document

Sets the value of the useCaches field of this URLConnection to the specified value.

Usage

From source file:com.zf.util.Post_NetNew.java

public static String pn(Map<String, String> pams) throws Exception {
    if (null == pams) {
        return "";
    }//from  ww  w  .  j  a v  a2s.c o m
    String strtmp = "url";
    URL url = new URL(pams.get(strtmp));
    pams.remove(strtmp);
    strtmp = "body";
    String body = pams.get(strtmp);
    pams.remove(strtmp);
    strtmp = "POST";
    if (StringUtils.isEmpty(body))
        strtmp = "GET";
    HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
    httpConn.setUseCaches(false);
    httpConn.setRequestMethod(strtmp);
    for (String pam : pams.keySet()) {
        httpConn.setRequestProperty(pam, pams.get(pam));
    }
    if ("POST".equals(strtmp)) {
        httpConn.setDoOutput(true);
        httpConn.setDoInput(true);
        DataOutputStream dos = new DataOutputStream(httpConn.getOutputStream());
        dos.writeBytes(body);
        dos.flush();
    }
    int resultCode = httpConn.getResponseCode();
    StringBuilder sb = new StringBuilder();
    sb.append(resultCode).append("\n");
    String readLine;
    InputStream stream;
    try {
        stream = httpConn.getInputStream();
    } catch (Exception ignored) {
        stream = httpConn.getErrorStream();
    }
    try {
        BufferedReader responseReader = new BufferedReader(new InputStreamReader(stream, "UTF-8"));
        while ((readLine = responseReader.readLine()) != null) {
            sb.append(readLine).append("\n");
        }
    } catch (Exception ignored) {
    }

    return sb.toString();
}

---

From source file:Main.java

static String validGet(URL url) throws IOException {
    String html = "";
    HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.STRICT_HOSTNAME_VERIFIER;
    HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);
    // TODO ensure HttpsURLConnection.setDefaultSSLSocketFactory isn't
    // required to be reset like hostnames are
    HttpURLConnection conn = null;
    try {/*from  w w  w.  j  ava2s  . c o m*/
        conn = (HttpURLConnection) url.openConnection();
        conn.setUseCaches(false);
        conn.setRequestMethod("GET");
        setBasicAuthentication(conn, url);
        int status = conn.getResponseCode();
        if (status != 200) {
            Logd(TAG, "Failed to get from server, returned code: " + status);
            throw new IOException("Get failed with error code " + status);
        } else {
            InputStreamReader in = new InputStreamReader(conn.getInputStream());
            BufferedReader br = new BufferedReader(in);
            String decodedString;
            while ((decodedString = br.readLine()) != null) {
                html += decodedString;
            }
            in.close();
        }
    } catch (IOException e) {
        Logd(TAG, "Failed to get from server: " + e.getMessage());
    }
    if (conn != null) {
        conn.disconnect();
    }
    return html;
}

---

From source file:ca.xecure.easychip.CommonUtilities.java

public static void http_post(String endpoint, Map<String, String> params) throws IOException {
    URL url;/*from  w w w  .j  av  a 2 s . c o m*/
    try {
        url = new URL(endpoint);
    } catch (MalformedURLException e) {
        throw new IllegalArgumentException("invalid url: " + endpoint);
    }

    String body = JSONValue.toJSONString(params);
    Log.v(LOG_TAG, "Posting '" + body + "' to " + url);

    byte[] bytes = body.getBytes();
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setFixedLengthStreamingMode(bytes.length);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/json");

        OutputStream out = conn.getOutputStream();
        out.write(bytes);
        out.close();

        int status = conn.getResponseCode();
        if (status != 200) {
            throw new IOException("Post failed with error code " + status);
        }
    } finally {
        if (conn != null) {
            conn.disconnect();
        }
    }
}

---

From source file:com.arthurpitman.common.HttpUtils.java

/**
 * Connects to an HTTP resource using the get method.
 * @param url the URL to connect to.//from  w  ww . ja  v  a  2 s .  co  m
 * @param requestProperties optional request properties, <code>null</code> if not required.
 * @return the resulting {@link HttpURLConnection}.
 * @throws IOException
 */
public static HttpURLConnection connectGet(final String url, final RequestProperty[] requestProperties)
        throws IOException {
    // setup connection
    HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
    connection.setUseCaches(false);
    connection.setRequestMethod(GET_METHOD);
    addRequestProperties(connection, requestProperties);
    return connection;
}

---

From source file:Main.java

/**
 * Issue a POST request to the server.//from   ww w .j  av  a2  s. c  o m
 *
 * @param endpoint
 *            POST address.
 * @param params
 *            request parameters.
 *
 * @throws java.io.IOException
 *             propagated from POST.
 */
public static String post(String endpoint, Map<String, String> params) throws IOException {
    URL url;
    try {
        url = new URL(endpoint);
    } catch (MalformedURLException e) {
        throw new IllegalArgumentException("invalid url: " + endpoint);
    }
    StringBuilder bodyBuilder = new StringBuilder();
    Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
    // constructs the POST body using the parameters
    while (iterator.hasNext()) {
        Entry<String, String> param = iterator.next();
        bodyBuilder.append(param.getKey()).append('=').append(param.getValue());
        if (iterator.hasNext()) {
            bodyBuilder.append('&');
        }
    }
    String body = bodyBuilder.toString();
    byte[] bytes = body.getBytes();
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setFixedLengthStreamingMode(bytes.length);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
        // post the request
        OutputStream out = conn.getOutputStream();
        out.write(bytes);
        out.close();
        // handle the response
        int status = conn.getResponseCode();
        if (status != 200) {
            throw new IOException("Post failed with error code " + status);
        }

        // Get Response
        InputStream is = conn.getInputStream();
        BufferedReader rd = new BufferedReader(new InputStreamReader(is));
        String line;
        StringBuffer response = new StringBuffer();
        while ((line = rd.readLine()) != null) {
            response.append(line);
            response.append('\n');
        }
        rd.close();
        return response.toString();

    } finally {
        if (conn != null) {
            conn.disconnect();
        }
    }
}

---

From source file:Main.java

/**
 * Issue a POST request to the server.//from   w w w .jav  a  2 s . c o  m
 *
 * @param endpoint
 *            POST address.
 * @param params
 *            request parameters.
 *
 * @throws IOException
 *             propagated from POST.
 */
public static String post_t(String endpoint, Map<String, Object> params, String contentType)
        throws IOException {
    URL url;
    try {
        url = new URL(endpoint);
    } catch (MalformedURLException e) {
        throw new IllegalArgumentException("invalid url: " + endpoint);
    }
    StringBuilder bodyBuilder = new StringBuilder();
    Iterator<Entry<String, Object>> iterator = params.entrySet().iterator();
    // constructs the POST body using the parameters
    while (iterator.hasNext()) {
        Entry<String, Object> param = iterator.next();
        bodyBuilder.append(param.getKey()).append('=').append(param.getValue());
        if (iterator.hasNext()) {
            bodyBuilder.append('&');
        }
    }
    String body = bodyBuilder.toString();
    byte[] bytes = body.getBytes();
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setFixedLengthStreamingMode(bytes.length);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", contentType);
        // post the request
        OutputStream out = conn.getOutputStream();
        out.write(bytes);
        out.close();
        // handle the response
        int status = conn.getResponseCode();
        if (status != 200) {
            throw new IOException("Post failed with error code " + status);
        }

        // Get Response
        InputStream is = conn.getInputStream();
        BufferedReader rd = new BufferedReader(new InputStreamReader(is));
        String line;
        StringBuffer response = new StringBuffer();
        while ((line = rd.readLine()) != null) {
            response.append(line);
            response.append('\n');
        }
        rd.close();
        return response.toString();

    } finally {
        if (conn != null) {
            conn.disconnect();
        }
    }
}

---

From source file:me.prokopyl.commandtools.migration.UUIDFetcher.java

private static HttpURLConnection createConnection() throws IOException {
    URL url = new URL(PROFILE_URL);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", "application/json");
    connection.setUseCaches(false);
    connection.setDoInput(true);/*from w w w  .j a  v a2  s  .  com*/
    connection.setDoOutput(true);
    return connection;
}

---

From source file:com.flexdesktop.connections.restfulConnection.java

public static String postRESTful(String RESTfull_URL, String data) {
    String state = "";
    try {//  www. ja  v a2  s  .  c o  m
        URL url = new URL(RESTfull_URL);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestMethod("POST");
        connection.setUseCaches(false);
        connection.setDoInput(true);
        connection.setDoOutput(true);

        //Send request
        postRequest(connection, data);
        //Get Response
        state = postResponse(connection);

        if (connection != null) {
            connection.disconnect();
        }
    } catch (Exception ex) {
        Logger.getLogger(com.flexdesktop.connections.restfulConnection.class.getName()).log(Level.SEVERE, null,
                ex);
    }
    System.out.println(state);
    return state;
}

---

From source file:me.sonarbeserk.lockup.utils.UUIDFetcher.java

private static HttpURLConnection createConnection(int page) throws Exception {
    URL url = new URL(PROFILE_URL + page);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", "application/json");
    connection.setUseCaches(false);
    connection.setDoInput(true);//from ww  w.  ja  v a 2s . co  m
    connection.setDoOutput(true);
    return connection;
}

---

From source file:connector.ISConnector.java

public static JSONObject processRequest(String servlet, byte[] query) {
    JSONObject response = null;//from  www  .  j  a v  a2s  . c o m
    if (servlet != null && !servlet.startsWith("/"))
        servlet = "/" + servlet;
    try {
        // Establish HTTP connection with Identity Service
        URL url = new URL(CONTEXT_PATH + servlet);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setUseCaches(false);
        conn.setAllowUserInteraction(false);
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        //Create the form content
        try (OutputStream out = conn.getOutputStream()) {
            out.write(query);
            out.close();
        }

        // Buffer the result into a string
        BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        StringBuilder sb = new StringBuilder();
        String line;
        while ((line = rd.readLine()) != null) {
            sb.append(line);
        }

        rd.close();
        conn.disconnect();
        response = (JSONObject) new JSONParser().parse(sb.toString());

    } catch (Exception e) {
        e.printStackTrace();
    }

    return response;
}

---

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