Example usage for javax.servlet.http HttpServletResponse setCharacterEncoding

List of usage examples for javax.servlet.http HttpServletResponse setCharacterEncoding

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Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse setCharacterEncoding.

Prototype

public void setCharacterEncoding(String charset);

Source Link

Document

Sets the character encoding (MIME charset) of the response being sent to the client, for example, to UTF-8.

Usage

From source file:edu.uci.ics.asterix.api.http.servlet.RESTAPIServlet.java

/**
 * Initialize the Content-Type of the response, and construct a
 * SessionConfig with the appropriate output writer and output-format
 * based on the Accept: header and other servlet parameters.
 *//*from  www.ja v a 2s  . c o m*/
static SessionConfig initResponse(HttpServletRequest request, HttpServletResponse response) throws IOException {
    response.setCharacterEncoding("utf-8");

    // JSON output is the default; most generally useful for a
    // programmatic HTTP API
    OutputFormat format = OutputFormat.JSON;

    // First check the "output" servlet parameter.
    String output = request.getParameter("output");
    String accept = request.getHeader("Accept");
    if (output != null) {
        if (output.equals("CSV")) {
            format = OutputFormat.CSV;
        } else if (output.equals("ADM")) {
            format = OutputFormat.ADM;
        }
    } else {
        // Second check the Accept: HTTP header.
        if (accept != null) {
            if (accept.contains("application/x-adm")) {
                format = OutputFormat.ADM;
            } else if (accept.contains("text/csv")) {
                format = OutputFormat.CSV;
            }
        }
    }

    SessionConfig sessionConfig = new SessionConfig(response.getWriter(), format);

    // Now that format is set, output the content-type
    switch (format) {
    case ADM:
        response.setContentType("application/x-adm");
        break;
    case JSON:
        response.setContentType("application/json");
        break;
    case CSV: {
        // Check for header parameter or in Accept:.
        if ("present".equals(request.getParameter("header"))
                || (accept != null && accept.contains("header=present"))) {
            response.setContentType("text/csv; header=present");
            sessionConfig.set(SessionConfig.FORMAT_CSV_HEADER, true);
        } else {
            response.setContentType("text/csv; header=absent");
        }
    }
    }
    ;

    return sessionConfig;
}

From source file:com.eryansky.common.web.utils.DownloadUtils.java

/**
 * //from   w  w  w .j a  v  a2s.  c  o  m
 * @param request
 * @param response
 * @param displayName ??
 * @param bytes 
 * @throws IOException
 */
public static void download(HttpServletRequest request, HttpServletResponse response, byte[] bytes,
        String displayName) throws IOException {
    if (ArrayUtils.isEmpty(bytes)) {
        response.setContentType("text/html;charset=utf-8");
        response.setCharacterEncoding("utf-8");
        response.getWriter().write("??");
        return;
    }
    download(request, response, new ByteArrayInputStream(bytes), displayName);
}

From source file:com.lushapp.common.web.utils.DownloadUtils.java

public static void download(HttpServletRequest request, HttpServletResponse response, String displayName,
        byte[] bytes) throws IOException {

    if (ArrayUtils.isEmpty(bytes)) {
        response.setContentType("text/html;charset=utf-8");
        response.setCharacterEncoding("utf-8");
        response.getWriter().write("??");
        return;//from www . java 2s .co m
    }

    response.reset();
    WebUtils.setNoCacheHeader(response);

    response.setContentType("application/x-download");
    response.setContentLength((int) bytes.length);

    String displayFilename = displayName.substring(displayName.lastIndexOf("_") + 1);
    displayFilename = displayFilename.replace(" ", "_");
    WebUtils.setDownloadableHeader(request, response, displayFilename);
    BufferedInputStream is = null;
    OutputStream os = null;
    try {

        os = response.getOutputStream();
        is = new BufferedInputStream(new ByteArrayInputStream(bytes));
        IOUtils.copy(is, os);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:cn.guoyukun.spring.web.utils.DownloadUtils.java

public static void download(HttpServletRequest request, HttpServletResponse response, String displayName,
        byte[] bytes) throws IOException {

    if (ArrayUtils.isEmpty(bytes)) {
        response.setContentType("text/html;charset=utf-8");
        response.setCharacterEncoding("utf-8");
        response.getWriter().write("??");
        return;//from  w ww.jav a  2  s  . c om
    }

    String userAgent = request.getHeader("User-Agent");
    boolean isIE = (userAgent != null) && (userAgent.toLowerCase().indexOf("msie") != -1);

    response.reset();
    response.setHeader("Pragma", "No-cache");
    response.setHeader("Cache-Control", "must-revalidate, no-transform");
    response.setDateHeader("Expires", 0L);

    response.setContentType("application/x-download");
    response.setContentLength((int) bytes.length);

    String displayFilename = displayName.substring(displayName.lastIndexOf("_") + 1);
    displayFilename = displayFilename.replace(" ", "_");
    if (isIE) {
        displayFilename = URLEncoder.encode(displayFilename, "UTF-8");
        response.setHeader("Content-Disposition", "attachment;filename=\"" + displayFilename + "\"");
    } else {
        displayFilename = new String(displayFilename.getBytes("UTF-8"), "ISO8859-1");
        response.setHeader("Content-Disposition", "attachment;filename=" + displayFilename);
    }
    BufferedInputStream is = null;
    OutputStream os = null;
    try {

        os = response.getOutputStream();
        is = new BufferedInputStream(new ByteArrayInputStream(bytes));
        IOUtils.copy(is, os);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:com.voa.weixin.utils.HttpUtils.java

public static void write(HttpServletResponse response, String message) throws IOException {
    PrintWriter writer = null;//from  www  .  j a  v a 2s. c  o m
    try {
        response.setHeader("Charset", "UTF-8");
        response.setCharacterEncoding("UTF-8");
        writer = response.getWriter();

        writer.write(message);
    } finally {
        if (writer != null)
            writer.close();
    }
}

From source file:com.sunway.cbm.util.web.ServletUtils.java

/**
 * ?xml?//from  w w  w  . ja va  2 s  . c  om
 * 
 * @param response
 * @param object
 */
public static void responseXml(HttpServletResponse response, String xml) {
    try {
        response.setContentType("text/xml");
        response.setCharacterEncoding("UTF-8");
        response.getWriter().write(xml);
        response.getWriter().flush();
        response.getWriter().close();
    } catch (IOException e) {
        logger.debug(e.toString());
    }
}

From source file:com.yiji.openapi.sdk.util.Servlets.java

public static void writeResponse(HttpServletResponse response, String data) {
    OutputStream output = null;/*w  ww .j av a  2 s .c  om*/
    InputStream input = null;
    try {
        response.setCharacterEncoding("UTF-8");
        response.setContentType(MediaType.APPLICATION_JSON_VALUE);
        output = response.getOutputStream();
        input = new ByteArrayInputStream(data.getBytes(Charset.forName("UTF-8")));
        IOUtils.copy(input, output);
        output.flush();
    } catch (Exception e) {
        throw new RuntimeException("?(flushResponse):" + e.getMessage());
    } finally {
        IOUtils.closeQuietly(output);
        IOUtils.closeQuietly(input);
    }
}

From source file:fiftyone.mobile.detection.webapp.JavascriptProvider.java

static void sendJavaScript(HttpServletRequest request, HttpServletResponse response, Dataset dataSet,
        StringBuilder javascript) throws IOException {

    response.reset();//w w w . j a  v  a  2  s.c  o m
    response.setContentType("application/x-javascript");
    response.setCharacterEncoding("UTF-8");
    response.setHeader("Vary", "User-Agent");
    response.setHeader("Cache-Control", "public");
    response.setHeader("Expires", dataSet.nextUpdate.toString());
    response.setHeader("Last-Modified", dataSet.published.toString());
    try {
        response.setHeader("ETag", eTagHash(dataSet, request));
    } catch (Exception ex) {
        // The response doesn't support eTags. Nothing we can do.
    }
    response.setBufferSize(DEFAULT_BUFFER_SIZE);
    response.setHeader("Content-Length", Integer.toString(javascript.length()));

    response.getOutputStream().println(javascript.toString());
    response.getOutputStream().flush();
    response.getOutputStream().close();
}

From source file:com.sunway.cbm.util.ServletUtils.java

/**
 * ?xml?// ww  w .j  av a  2  s. c  o  m
 * 
 * @param response
 * @param object
 */
public static void responseXml(HttpServletResponse response, String xml) {
    try {
        //         response.setContentType("text/xml");
        response.setCharacterEncoding("UTF-8");
        logger.debug(xml);
        //         response.getWriter().write(xml);
        //         response.getWriter().flush();
        //         response.getWriter().close();
        PrintWriter out = response.getWriter();
        out.print(xml);
        out.close();
    } catch (IOException e) {
        logger.debug(e.toString());
    }
}

From source file:net.mindengine.oculus.frontend.web.controllers.display.FileDisplayController.java

public static void showTextFile(HttpServletResponse response, String path, String fileName, String contentType)
        throws IOException {

    OutputStream os = response.getOutputStream();
    OutputStreamWriter w = new OutputStreamWriter(os);
    response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");
    response.setContentType(contentType);
    response.setCharacterEncoding("UTF-8");
    String content = readFileAsString(path);
    w.write(content);/* w  w w.j av a  2 s .  c o  m*/
    w.flush();
    os.flush();
    os.close();
}