Java J2EE Jersey文件上载-输入始终为空
我尝试创建一个可以上传文件的restful服务。我遵循以下步骤： 但是，当我上传一个文件（例如.pdf）时，输入FormDataMultiPart总是空的，我不明白为什么。我使用libs jersey多部分和jersey核心。我的代码： Restful服务：Java J2EE Jersey文件上载-输入始终为空,java,jakarta-ee,upload,jersey,multipart,Java,Jakarta Ee,Upload,Jersey,Multipart,我尝试创建一个可以上传文件的restful服务。我遵循以下步骤： 但是，当我上传一个文件（例如.pdf）时，输入FormDataMultiPart总是空的，我不明白为什么。我使用libs jersey多部分和jersey核心。我的代码： Restful服务： @Path("/reservation") public class ReservationWs { /** The Constant log. */ private static final L
@Path("/reservation")
public class ReservationWs {
/** The Constant log. */
private static final Logger LOGGER = LoggerFactory.getLogger(ReservationWs.class.getName());
private static final String SERVER_UPLOAD_LOCATION_FOLDER = "C://opt/share/reservation/";
@POST
@Path("/upload")
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response uploadFile(
@FormDataParam("file") InputStream uploadedInputStream,
@FormDataParam("file") FormDataContentDisposition fileDetail) {
String uploadedFileLocation = SERVER_UPLOAD_LOCATION_FOLDER
+ fileDetail.getFileName();
// save it
saveFile(uploadedInputStream, uploadedFileLocation);
String output = "File uploaded to : " + uploadedFileLocation;
return Response.status(200).entity(output).build();
}
@POST
@Path("/upload2")
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response uploadFile2(FormDataMultiPart form) {
FormDataBodyPart filePart = form.getField("file");
ContentDisposition headerOfFilePart = filePart.getContentDisposition();
InputStream fileInputStream = filePart.getValueAs(InputStream.class);
String filePath = SERVER_UPLOAD_LOCATION_FOLDER + headerOfFilePart.getFileName();
// save the file to the server
saveFile(fileInputStream, filePath);
String output = "File saved to server location using FormDataMultiPart : " + filePath;
System.out.println(output);
return Response.status(200).entity(output).build();
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Strict//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Form Page</title>
</head>
<body>
<h1>Upload a File</h1>
<form action="reservation/upload" method="post" enctype="multipart/form-data">
<p>
Select a file : <input type="file" name="file" size="55" />
</p>
<input type="submit" value="Upload It" />
</form>
</body>
</html>
有什么想法吗？我现在找到了一个不好的解决方案
@POST
@Path("/upload")
@Consumes(MediaType.MULTIPART_FORM_DATA)
public Response uploadFile(@FormDataParam("file") InputStream file, @FormDataParam("file") FormDataContentDisposition fileDetail, @QueryParam("fileName") String fileName){
...
...
String uploadedFileLocation = SERVER_UPLOAD_LOCATION_FOLDER+ fileName;//fileDetail.getFileName();
// save it
saveFile(file, uploadedFileLocation);
...
//Logic of the service.
...
//Delete file from local.
}
private void saveFile(InputStream uploadedInputStream, String serverLocation) throws IOException {
OutputStream outpuStream=null;
try {
outpuStream = new FileOutputStream(new File(serverLocation));
int read = 0;
byte[] bytes = new byte[1024];
outpuStream = new FileOutputStream(new File(serverLocation));
while ((read = uploadedInputStream.read(bytes)) != -1) {
outpuStream.write(bytes, 0, read);
}
outpuStream.flush();
outpuStream.close();
} catch( IOException e){
LOGGER.debug("[UploadWs - saveFile] - error: "+e);
} finally{
if(outpuStream!=null){
outpuStream.close();
}
}
}