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 
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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 {