Java HttpServletRequest.getInputStream方法代碼示例

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * @param @param request
 * @param @throws Exception
 * @Description: 解析微信發來的請求（XML）
 */
@SuppressWarnings("unchecked")
public static Map<String, String> parseXml(HttpServletRequest request) throws Exception {
  // 將解析結果存儲在 HashMap 中
  Map<String, String> map = new HashMap<String, String>();

  // 從 request 中取得輸入流
  InputStream inputStream = request.getInputStream();
  // 讀取輸入流
  SAXReader reader = new SAXReader();
  Document document = reader.read(inputStream);
  // 得到 xml 根元素
  Element root = document.getRootElement();
  // 得到根元素的所有子節點
  List<Element> elementList = root.elements();

  // 遍曆所有子節點
  for (Element e : elementList) {
    map.put(e.getName(), e.getText());
  }

  // 釋放資源
  inputStream.close();
  inputStream = null;

  return map;
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/***
 * 需提供外部訪問地址
 * 此處可以是SpringMVC、Struts2、Servlet 請根據項目前端框架編寫如下代碼.
 * 調用微信統一下單時，傳入 UnifiedOrderInput.notify_url,應為該放方法的訪問路徑
 */
public void notify_wechat_pay(HttpServletRequest request, HttpServletResponse response){

    String status="SUCCESS",msg = "處理成功";
    PrintWriter writer = null;
    try {
        writer = response.getWriter();
        StringBuffer xmlResult = new StringBuffer();
        InputStream is = request.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
        String buffer = null;
        while ((buffer = br.readLine()) != null){
            xmlResult.append(buffer);
        }
        log.info("微信異步返回信息："+ ThlwsBeanUtil.formatXml(xmlResult.toString()));
        NotifyOutput notifyOutput = WechatUtil.parseNotifyMsg(xmlResult.toString());
        //notifyOutput 是微信推送數據轉換為Java對象，直接從該對象取值並進行相關業務操作
        //TODO 業務邏輯
    } catch (IOException e) {
        e.printStackTrace();
    }finally {
        writer.println("<xml><return_code><![CDATA["+status+"]]></return_code><return_msg><![CDATA["+msg+"]]></return_msg></xml>");
    }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@Override
public Object getValue(HttpServletRequest request) throws Exception {
  Object body = request.getAttribute(RestConst.BODY_PARAMETER);
  if (body != null) {
    return convertValue(body, targetType);
  }

  // for standard HttpServletRequest, getInputStream will never return null
  // but for mocked HttpServletRequest, maybe get a null
  //  like org.apache.servicecomb.provider.springmvc.reference.ClientToHttpServletRequest
  InputStream inputStream = request.getInputStream();
  if (inputStream == null) {
    return null;
  }

  String contentType = request.getContentType();
  if (contentType != null && !contentType.toLowerCase(Locale.US).startsWith(MediaType.APPLICATION_JSON)) {
    // TODO: we should consider body encoding
    return IOUtils.toString(inputStream, "UTF-8");
  }
  return RestObjectMapper.INSTANCE.readValue(inputStream, targetType);
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * Adds an object to a bucket.
 *
 * http://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUT.html
 *
 * @param bucketName the Bucket in which to store the file in.
 * @param request http servlet request
 * @return ResponseEntity with Status Code and ETag
 */
@RequestMapping(value = "/{bucketName:.+}/**", method = RequestMethod.PUT)
public ResponseEntity<String> putObject(@PathVariable final String bucketName,
    final HttpServletRequest request) {
  final String filename = filenameFrom(bucketName, request);
  try (ServletInputStream inputStream = request.getInputStream()) {
    final S3Object s3Object = fileStore.putS3Object(bucketName,
        filename,
        request.getContentType(),
        inputStream,
        isV4SigningEnabled(request));

    final HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.setETag("\"" + s3Object.getMd5() + "\"");
    responseHeaders.setLastModified(s3Object.getLastModified());
    return new ResponseEntity<>(responseHeaders, HttpStatus.CREATED);
  } catch (final IOException e) {
    LOG.error("Object could not be saved!", e);
    return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
  }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * Returns a resource object as a result of a get request.
 **/
protected void doPost( HttpServletRequest req, HttpServletResponse resp ) throws ServletException, IOException {
    int length = req.getIntHeader( "Content-length" );
    String contentType = req.getHeader( "Content-type" );
    resp.setContentType( contentType );

    InputStreamReader isr = new InputStreamReader( req.getInputStream() );
    BufferedReader br = new BufferedReader( isr );
    resp.getWriter().print( length );

    String line = br.readLine();
    while (line != null) {
        resp.getWriter().print( "\n" );
        resp.getWriter().print( line );
        line = br.readLine();
    }
    resp.getWriter().flush();
    resp.getWriter().close();
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {
    // Swallow any request body
    int read = 0;
    int len = 0;
    byte[] buffer = new byte[4096];
    InputStream is = req.getInputStream();
    boolean contentOK = true;
    while (len > -1) {
        len = is.read(buffer);
        read = read + len;
        for (int i=0; i<len && contentOK; i++) {
            contentOK = (buffer[i] == DATA);
        }
    }
    // len will have been -1 on last iteration
    read++;

    // Report the number of bytes read
    resp.setContentType("text/plain");
    if (contentOK)
        resp.getWriter().print("OK-" + read);
    else
        resp.getWriter().print("CONTENT-MISMATCH-" + read);
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
protected void read(CometEvent event, HttpServletRequest request, HttpServletResponse response)
    throws IOException {
    InputStream is = request.getInputStream();
    byte[] buf = new byte[512];
    while (is.available() > 0) {
        log("Available: " + is.available());
        int n = is.read(buf);
        if (n > 0) {
            log("Read " + n + " bytes: " + new String(buf, 0, n)
                    + " for session: " + request.getSession(true).getId());
        } else if (n < 0) {
            log("End of file: " + n);
            end(event, request, response);
            return;
        }
    }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@Override
protected Object readInternal(Class<? extends Object> clazz, HttpServletRequest request)
        throws IOException, HttpMessageNotReadableException {
    
    InputStream in = request.getInputStream();
    return gson.fromJson(new InputStreamReader(in), clazz);
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
public BufferedRequestWrapper(HttpServletRequest req) throws IOException {
    super(req);
    // Read InputStream and store its content in a buffer.
    InputStream is = req.getInputStream();
    this.baos = new ByteArrayOutputStream();
    byte buf[] = new byte[1024];
    int letti;
    while ((letti = is.read(buf)) > 0) {
        this.baos.write(buf, 0, letti);
    }
    this.buffer = this.baos.toByteArray();
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
private GerritProjectEvent getBody(HttpServletRequest req) throws IOException {
  char[] body = new char[req.getContentLength()];
  try (InputStreamReader is = new InputStreamReader(req.getInputStream())) {
    IOUtils.readFully(is, body);
    String bodyString = new String(body);
    log.info("Received body: " + bodyString);
    return gson.fromJson(bodyString, GerritProjectEvent.class);
  }
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * Converts the input given in the request to a properties object.
 * 
 * @param request
 *            The received request.
 * @return The properties contained in the request.
 * @throws IOException
 *             Thrown in case the request information could not be
 *             evaluated.
 */
private boolean determinePSPParams(HttpServletRequest request, Properties p) {
    

    try {
        ServletInputStream inputStream = request.getInputStream();
        if (inputStream == null) {
            return false;
        }
        BufferedReader br = new BufferedReader(new InputStreamReader(
                inputStream, "UTF-8"));
        String line = br.readLine();
        StringBuffer sb = new StringBuffer();
        while (line != null) {
            sb.append(line);
            line = br.readLine();
        }
        String params = sb.toString();
        StringTokenizer st = new StringTokenizer(params, "&");
        while (st.hasMoreTokens()) {
            String nextToken = st.nextToken();
            String[] splitResult = nextToken.split("=");
            String key = splitResult[0];
            String value = "";
            if (splitResult.length > 1) {
                value = URLDecoder.decode(splitResult[1], "UTF-8");
            }
            p.setProperty(key, value);
        }
        return validateResponse(p);
    } catch (IOException e) {
        // if the request information cannot be read, we cannot determine
        // whether the registration worked or not. Hence we assume it
        // failed, log a warning and return the failure-URL to the PSP.
        logger.logWarn(Log4jLogger.SYSTEM_LOG, e,
                LogMessageIdentifier.WARN_HEIDELPAY_INPUT_PROCESS_FAILED);
    }
    
    return false;
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
@Override
public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
	if (!"POST".equals(request.getMethod())) {
		throw new HttpRequestMethodNotSupportedException(request.getMethod(), new String[]{"POST"}, "ThriftServiceExporter only supports POST requests");
	}

	InputStream in = request.getInputStream();
	OutputStream out = response.getOutputStream();
	try {
		ThriftContextHolder.init();
		response.setContentType("application/x-thrift");
		TTransport transport = new TIOStreamTransport(in, out);

		TProtocol protocol = getProtocolFactory().getProtocol(transport);
		TProcessor processor = ThriftUtil.buildProcessor(getServiceInterface(), getProxyForService());
		processor.process(protocol, protocol);
	} catch (Throwable e) {
		response.setContentType("text/plain; charset=UTF-8");
		response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
		e.printStackTrace(new PrintWriter(out, true));
		if (LOGGER.isErrorEnabled()) {
			LOGGER.error("Thrift server direct error", e);
		}
	} finally {
		ThriftContextHolder.reset();
	}
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * 讀取post請求原始xml內容
 * 
 * @param request
 * @return
 * @throws IOException
 */
private String getRequestOriginalXml(HttpServletRequest request) throws IOException {
	BufferedReader in = new BufferedReader(
			new InputStreamReader(request.getInputStream(), Charset.forName("UTF-8")));
	StringBuilder sb = new StringBuilder();
	String line = null;
	while ((line = in.readLine()) != null) {
		sb.append(line);

	}
	return sb.toString();
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
/**
 * Handles the PUT method, which uploads a file to the server.
 * 
 * @param req HTTP Request from client
 * @param resp HTTP Response to client
 */
public void putMethod(HttpServletRequest req, HttpServletResponse resp, StagingFile staging, String filename)
	throws IOException
{
	try( InputStream in = req.getInputStream() )
	{
		fileSystemService.write(staging, filename, in, false);
		resp.setStatus(HttpServletResponse.SC_CREATED);
	}
}
 

import javax.servlet.http.HttpServletRequest; //導入方法依賴的package包/類
private Object readJavaType(JavaType javaType, HttpServletRequest request) {
    try {
        InputStream in = request.getInputStream();
        return this.objectMapper.readValue(in, javaType);
    } catch (IOException ex) {
        throw new HttpMessageNotReadableException("Could not read JSON: " + ex.getMessage(), ex);
    }
}