Java Code Examples for javax.servlet.http.Part

http://www.programcreek.com/java-api-examples/index.php?api=javax.servlet.http.Part

The following are 20 Jave code examples that show how to use the javax.servlet.http.Part class. These examples are extracted from open source projects. You can click  to vote up the examples you like. Your votes will be used in an intelligent system to get more and better code examples. Thanks!

Example 1

8

From project spring-framework, under directory /spring-web/src/main/java/org/springframework/web/multipart/support/, in source file StandardMultipartHttpServletRequest.java

public String getMultipartContentType(String paramOrFileName){
  try {
    Part part=getPart(paramOrFileName);
    return (part != null ? part.getContentType() : null);
  }
 catch (  Exception ex) {
    throw new MultipartException("Could not access multipart servlet request",ex);
  }
}

Example 2

8

From project spring-framework, under directory /spring-web/src/main/java/org/springframework/web/multipart/support/, in source file StandardMultipartHttpServletRequest.java

public HttpHeaders getMultipartHeaders(String paramOrFileName){
  try {
    Part part=getPart(paramOrFileName);
    if (part != null) {
      HttpHeaders headers=new HttpHeaders();
      for (      String headerName : part.getHeaderNames()) {
        headers.put(headerName,new ArrayList<String>(part.getHeaders(headerName)));
      }
      return headers;
    }
 else {
      return null;
    }
  }
 catch (  Exception ex) {
    throw new MultipartException("Could not access multipart servlet request",ex);
  }
}

Example 3

7

From project ohmageServer, under directory /src/org/ohmage/request/, in source file Request.java

/**
 * Reads the HttpServletRequest for a key-value pair and returns the value where the key is equal to the given key.
 * @param httpRequest A "multipart/form-data" request that contains the parameter that has a key value ‘key‘.
 * @param key The key for the value we are after in the ‘httpRequest‘.
 * @return Returns null if there is no such key in the request or if, after reading the object, it has a length of 0. Otherwise, it returns the value associated with the key as a byte array.
 * @throws ServletException Thrown if the ‘httpRequest‘ is not a "multipart/form-data" request.
 * @throws IOException Thrown if there is an error reading the value fromthe request‘s input stream.
 * @throws IllegalStateException Thrown if the entire request is largerthan the maximum allowed size for a  request or if the value of the requested key is larger than the maximum allowed  size for a single value.
 */
protected byte[] getMultipartValue(HttpServletRequest httpRequest,String key) throws ValidationException {
  try {
    Part part=httpRequest.getPart(key);
    if (part == null) {
      return null;
    }
    InputStream partInputStream=part.getInputStream();
    ByteArrayOutputStream outputStream=new ByteArrayOutputStream();
    byte[] chunk=new byte[4096];
    int amountRead;
    while ((amountRead=partInputStream.read(chunk)) != -1) {
      outputStream.write(chunk,0,amountRead);
    }
    if (outputStream.size() == 0) {
      return null;
    }
 else {
      return outputStream.toByteArray();
    }
  }
 catch (  ServletException e) {
    LOGGER.error("This is not a multipart/form-data POST.",e);
    setFailed(ErrorCode.SYSTEM_GENERAL_ERROR,"This is not a multipart/form-data POST which is what we expect for the current API call.");
    throw new ValidationException(e);
  }
catch (  IOException e) {
    LOGGER.error("There was an error reading the message from the input stream.",e);
    setFailed();
    throw new ValidationException(e);
  }
}

Example 4

7

From project Ohmage_Server_2, under directory /src/org/ohmage/request/, in source file Request.java

/**
 * Reads the HttpServletRequest for a key-value pair and returns the value where the key is equal to the given key.
 * @param httpRequest A "multipart/form-data" request that contains the parameter that has a key value ‘key‘.
 * @param key The key for the value we are after in the ‘httpRequest‘.
 * @return Returns null if there is no such key in the request or if, after reading the object, it has a length of 0. Otherwise, it returns the value associated with the key as a byte array.
 * @throws ServletException Thrown if the ‘httpRequest‘ is not a "multipart/form-data" request.
 * @throws IOException Thrown if there is an error reading the value fromthe request‘s input stream.
 * @throws IllegalStateException Thrown if the entire request is largerthan the maximum allowed size for a  request or if the value of the requested key is larger than the maximum allowed  size for a single value.
 */
protected byte[] getMultipartValue(HttpServletRequest httpRequest,String key) throws ValidationException {
  try {
    Part part=httpRequest.getPart(key);
    if (part == null) {
      return null;
    }
    InputStream partInputStream=part.getInputStream();
    ByteArrayOutputStream outputStream=new ByteArrayOutputStream();
    byte[] chunk=new byte[4096];
    int amountRead;
    while ((amountRead=partInputStream.read(chunk)) != -1) {
      outputStream.write(chunk,0,amountRead);
    }
    if (outputStream.size() == 0) {
      return null;
    }
 else {
      return outputStream.toByteArray();
    }
  }
 catch (  ServletException e) {
    LOGGER.error("This is not a multipart/form-data POST.",e);
    setFailed(ErrorCodes.SYSTEM_GENERAL_ERROR,"This is not a multipart/form-data POST which is what we expect for the current API call.");
    throw new ValidationException(e);
  }
catch (  IOException e) {
    LOGGER.error("There was an error reading the message from the input stream.",e);
    setFailed();
    throw new ValidationException(e);
  }
}

Example 5

6

From project Coffee-Framework, under directory /coffeeframework-core/src/main/java/coffee/, in source fileCoffeeRequestContext.java

/**
 * @param part
 * @return
 */
public String getParameterFilename(Part part){
  for (  String cd : part.getHeader("content-disposition").split(";")) {
    if (cd.trim().startsWith("filename")) {
      String fileName=cd.substring(cd.indexOf(‘=‘) + 1).trim().replace("\"","");
      fileName=fileName.substring(fileName.lastIndexOf(‘/‘) + 1).substring(fileName.lastIndexOf(‘\\‘) + 1);
      return fileName;
    }
  }
  return null;
}

Example 6

5

From project capedwarf-blue, under directory /blobstore/src/main/java/org/jboss/capedwarf/blobstore/, in source fileJBossBlobstoreService.java

public void storeUploadedBlobs(HttpServletRequest request) throws IOException, ServletException {
  Map<String,BlobKey> map=new HashMap<String,BlobKey>();
  Map<String,List<BlobKey>> map2=new HashMap<String,List<BlobKey>>();
  for (  Part part : request.getParts()) {
    if (ServletUtils.isFile(part)) {
      BlobKey blobKey=storeUploadedBlob(part);
      String name=part.getName();
      map.put(name,blobKey);
      List<BlobKey> list=map2.get(name);
      if (list == null) {
        list=new LinkedList<BlobKey>();
        map2.put(name,list);
      }
      list.add(blobKey);
    }
  }
  request.setAttribute(UPLOADED_BLOBKEY_ATTR,map);
  request.setAttribute(UPLOADED_BLOBKEY_LIST_ATTR,map2);
}

Example 7

5

From project capedwarf-blue, under directory /blobstore/src/main/java/org/jboss/capedwarf/blobstore/, in source fileJBossBlobstoreService.java

private BlobKey storeUploadedBlob(Part part) throws IOException {
  JBossFileService fileService=getFileService();
  AppEngineFile file=fileService.createNewBlobFile(part.getContentType(),ServletUtils.getFileName(part));
  ReadableByteChannel in=Channels.newChannel(part.getInputStream());
  try {
    FileWriteChannel out=fileService.openWriteChannel(file,true);
    try {
      IOUtils.copy(in,out);
    }
  finally {
      out.closeFinally();
    }
  }
  finally {
    in.close();
  }
  return fileService.getBlobKey(file);
}

Example 8

5

From project capedwarf-blue, under directory /common/src/main/java/org/jboss/capedwarf/common/servlet/, in source fileServletUtils.java

public static String getFileName(Part part){
  String contentDisposition=part.getHeader("content-disposition");
  for (  String token : contentDisposition.split(";")) {
    if (token.trim().startsWith("filename")) {
      return token.substring(token.indexOf(‘=‘) + 1).trim().replace("\"","");
    }
  }
  return null;
}

Example 9

5

From project Coffee-Framework, under directory /coffeeframework-core/src/main/java/coffee/, in source fileCoffeeRequestContext.java

/**
 * @throws ServletException
 * @throws IOException
 * @throws FileUploadException
 */
public void parseMultiPartRequest() throws ServletException, IOException {
  params=new HashMap<String,Object>();
  for (  Part part : request.getParts()) {
    String filename=getParameterFilename(part);
    String fieldname=part.getName();
    if (filename == null) {
      String fieldvalue=getValue(part);
      params.put(fieldname,fieldvalue);
    }
 else     if (!filename.isEmpty()) {
      if (reachedMaxFileSize(part))       throw new IOException("MAX_FILE_SIZE_REACHED");
      params.put(fieldname,part);
    }
  }
}

Example 10

5

From project Coffee-Framework, under directory /coffeeframework-core/src/main/java/coffee/, in source fileCoffeeRequestContext.java

/**
 * @param part
 * @return
 * @throws IOException
 */
public String getValue(Part part) throws IOException {
  BufferedReader reader=new BufferedReader(new InputStreamReader(part.getInputStream(),"UTF-8"));
  StringBuilder value=new StringBuilder();
  char[] buffer=new char[1024];
  for (int length=0; (length=reader.read(buffer)) > 0; ) {
    value.append(buffer,0,length);
  }
  return value.toString();
}

Example 11

5

From project Coffee-Framework, under directory /coffeeframework-core/src/main/java/coffee/servlet/, in source fileJsonUploadServlet.java

public void doUpload(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {
  Collection<Part> parts=request.getParts();
  ArrayList<E> createdObjects=new ArrayList<E>();
  for (  Part part : parts) {
    String fileName=getFileName(part);
    writeFile(part,fileName);
    try {
      createdObjects.add(saveFile(fileName,part));
    }
 catch (    Exception e) {
      throw new ServletException("Can‘t save the file.",e);
    }
  }
  PrintWriter writer=response.getWriter();
  writer.write(new Gson().toJson(createdObjects));
}

Example 12

5

From project fileUploadServlet3JSF2, under directory /src/main/java/net/balusc/http/multipart/, in source fileMultipartMap.java

/**
 * Global constructor.
 */
private MultipartMap(HttpServletRequest multipartRequest,String location,boolean multipartConfigured) throws ServletException, IOException {
  multipartRequest.setAttribute(ATTRIBUTE_NAME,this);
  this.encoding=multipartRequest.getCharacterEncoding();
  if (this.encoding == null) {
    multipartRequest.setCharacterEncoding(this.encoding=DEFAULT_ENCODING);
  }
  this.location=location;
  this.multipartConfigured=multipartConfigured;
  for (  Part part : multipartRequest.getParts()) {
    String filename=getFilename(part);
    if (filename == null) {
      processTextPart(part);
    }
 else     if (!filename.isEmpty()) {
      processFilePart(part,filename);
    }
  }
}

Example 13

5

From project fileUploadServlet3JSF2, under directory /src/main/java/net/balusc/http/multipart/, in source fileMultipartMap.java

/**
 * Returns the filename from the content-disposition header of the given part.
 */
private String getFilename(Part part){
  for (  String cd : part.getHeader(CONTENT_DISPOSITION).split(";")) {
    if (cd.trim().startsWith(CONTENT_DISPOSITION_FILENAME)) {
      return cd.substring(cd.indexOf(‘=‘) + 1).trim().replace("\"","");
    }
  }
  return null;
}

Example 14

5

From project fileUploadServlet3JSF2, under directory /src/main/java/net/balusc/http/multipart/, in source fileMultipartMap.java

/**
 * Process given part as Text part.
 */
private void processTextPart(Part part) throws IOException {
  String name=part.getName();
  String[] values=(String[])super.get(name);
  if (values == null) {
    put(name,new String[]{getValue(part)});
  }
 else {
    int length=values.length;
    String[] newValues=new String[length + 1];
    System.arraycopy(values,0,newValues,0,length);
    newValues[length]=getValue(part);
    put(name,newValues);
  }
}

Example 15

5

From project fileUploadServlet3JSF2, under directory /src/main/java/net/balusc/http/multipart/, in source fileMultipartMap.java

/**
 * Process given part as File part which is to be saved in temp dir with the given filename.
 */
private void processFilePart(Part part,String filename) throws IOException {
  filename=filename.substring(filename.lastIndexOf(‘/‘) + 1).substring(filename.lastIndexOf(‘\\‘) + 1);
  String prefix=filename;
  String suffix="";
  if (filename.contains(".")) {
    prefix=filename.substring(0,filename.lastIndexOf(‘.‘));
    suffix=filename.substring(filename.lastIndexOf(‘.‘));
  }
  File file=File.createTempFile(prefix + "_",suffix,new File(location));
  if (multipartConfigured) {
    part.write(file.getName());
  }
 else {
    InputStream input=null;
    OutputStream output=null;
    try {
      input=new BufferedInputStream(part.getInputStream(),DEFAULT_BUFFER_SIZE);
      output=new BufferedOutputStream(new FileOutputStream(file),DEFAULT_BUFFER_SIZE);
      byte[] buffer=new byte[DEFAULT_BUFFER_SIZE];
      for (int length=0; ((length=input.read(buffer)) > 0); ) {
        output.write(buffer,0,length);
      }
    }
  finally {
      if (output != null)       try {
        output.close();
      }
 catch (      IOException logOrIgnore) {
      }
      if (input != null)       try {
        input.close();
      }
 catch (      IOException logOrIgnore) {
      }
    }
  }
  put(part.getName(),file);
  part.delete();
}

Example 16

5

From project jboss-as-quickstart, under directory /xml-dom4j/src/main/java/org/jboss/as/quickstart/xml/upload/, in source file FileUploadServlet.java

@Override protected void doPost(HttpServletRequest req,HttpServletResponse resp) throws ServletException, IOException {
  final String reqContentType=req.getContentType();
  if (!reqContentType.contains("multipart/form-data")) {
    logger.severe("Received request which is not mulipart: " + reqContentType);
    resp.sendError(406,"Received request which is not mulipart: " + reqContentType);
    return;
  }
  Collection<Part> fileParts=req.getParts();
  if (fileParts != null && fileParts.size() > 0) {
    for (    Part p : fileParts) {
      String partContentType=p.getContentType();
      String partName=p.getName();
      if (partContentType != null && partContentType.equals("text/xml") && partName != null && partName.equals(INPUT_NAME)) {
        InputStream is=p.getInputStream();
        fileUploadBean.parseUpload(is);
        break;
      }
    }
  }
  RequestDispatcher rd=getServletContext().getRequestDispatcher("/");
  if (rd != null) {
    rd.forward(req,resp);
    return;
  }
 else {
    throw new IllegalStateException("Container is not well!");
  }
}

Example 17

5

From project jboss-as-quickstart, under directory /xml-jaxp/src/main/java/org/jboss/as/quickstart/xml/upload/, in source fileFileUploadServlet.java

@Override protected void doPost(HttpServletRequest req,HttpServletResponse resp) throws ServletException, IOException {
  final String reqContentType=req.getContentType();
  if (!reqContentType.contains("multipart/form-data")) {
    logger.severe("Received request which is not mulipart: " + reqContentType);
    resp.sendError(406,"Received request which is not mulipart: " + reqContentType);
    return;
  }
  Collection<Part> fileParts=req.getParts();
  if (fileParts != null && fileParts.size() > 0) {
    for (    Part p : fileParts) {
      String partContentType=p.getContentType();
      String partName=p.getName();
      if (partContentType != null && partContentType.equals("text/xml") && partName != null && partName.equals(INPUT_NAME)) {
        InputStream is=p.getInputStream();
        fileUploadBean.parseUpload(is);
        break;
      }
    }
  }
  RequestDispatcher rd=getServletContext().getRequestDispatcher("/");
  if (rd != null) {
    rd.forward(req,resp);
    return;
  }
 else {
    throw new IllegalStateException("Container is not well!");
  }
}

Example 18

5

From project MiddlewareMagicDemos, under directory /EE6_FileUpload_Servlet/src/, in source file FileUploadServlet.java

public void service(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {
  PrintWriter out=response.getWriter();
  out.println("<html><head><body>");
  for (  Part part : request.getParts()) {
    String fileName="";
    String partHeader=part.getHeader("content-disposition");
    long partSize=part.getSize();
    out.println("<BR>Part Name = " + part.getName());
    out.println("<BR>Part Header = " + partHeader);
    out.println("<BR>Part Size = " + partSize);
    System.out.println("part.getHeader(\"content-disposition\") = " + part.getHeader("content-disposition"));
  }
  out.println("<center><h1>File Upload Completed Successfully</h1></center></body></html>");
  System.out.println("Custom Way To Upload File with Actual FileName.");
  fileUploadWithDesiredFilePathAndName(request);
  System.out.println("File Uploaded using custom Way.");
}

Example 19

5

From project spring-framework, under directory /spring-web/src/main/java/org/springframework/web/multipart/support/, in source file StandardMultipartHttpServletRequest.java

/**
 * Create a new StandardMultipartHttpServletRequest wrapper for the given request.
 * @param request the servlet request to wrap
 * @throws MultipartException if parsing failed
 */
public StandardMultipartHttpServletRequest(HttpServletRequest request) throws MultipartException {
  super(request);
  try {
    Collection<Part> parts=request.getParts();
    MultiValueMap<String,MultipartFile> files=new LinkedMultiValueMap<String,MultipartFile>(parts.size());
    for (    Part part : parts) {
      String filename=extractFilename(part.getHeader(CONTENT_DISPOSITION));
      if (filename != null) {
        files.add(part.getName(),new StandardMultipartFile(part,filename));
      }
    }
    setMultipartFiles(files);
  }
 catch (  Exception ex) {
    throw new MultipartException("Could not parse multipart servlet request",ex);
  }
}

Example 20

5

From project spring-framework, under directory /spring-web/src/main/java/org/springframework/web/multipart/support/, in source file StandardServletMultipartResolver.java

public void cleanupMultipart(MultipartHttpServletRequest request){
  try {
    for (    Part part : request.getParts()) {
      if (request.getFile(part.getName()) != null) {
        part.delete();
      }
    }
  }
 catch (  Exception ex) {
    LogFactory.getLog(getClass()).warn("Failed to perform cleanup of multipart items",ex);
  }
}

The examples above are mined from open source projects. Each example has a reference to 
its resource, but the http link may not be provided due to the evoluation of the project.

时间： 2024-10-11 06:27:03

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