Java 将InputStream作为参数传递给web服务
我试图上传文件,但我不是通过html表单。无法使用QueryParam和PathParam。所以,谁都知道如何通过这条小溪 我的HttPClient看起来像:Java 将InputStream作为参数传递给web服务,java,file-upload,jersey,Java,File Upload,Jersey,我试图上传文件,但我不是通过html表单。无法使用QueryParam和PathParam。所以,谁都知道如何通过这条小溪 我的HttPClient看起来像: try { HttpClient httpclient = new DefaultHttpClient(); InputStream stream=new FileInputStream(new File("C:/localstore/ankita/Desert.jpg")); St
try
{
HttpClient httpclient = new DefaultHttpClient();
InputStream stream=new FileInputStream(new File("C:/localstore/ankita/Desert.jpg"));
String url="http://localhost:8080/Cloud/webresources/fileupload";
HttpPost httppost = new HttpPost(url);
HttpResponse response = httpclient.execute(httppost);
}
catch(Exception e){}
我的web服务类看起来有点像:
@Path("/fileupload")
public class UploadFileService {
@POST
@Consumes(MediaType.APPLICATION_OCTET_STREAM)
public Response uploadFile(InputStream in) throws IOException
{
String uploadedFileLocation = "c://filestore/Desert.jpg" ;
// save it
saveToFile(in, uploadedFileLocation);
String output = "File uploaded via Jersey based RESTFul Webservice to: " + uploadedFileLocation;
return Response.status(200).entity(output).build();
}
// save uploaded file to new location
private void saveToFile(InputStream uploadedInputStream,String uploadedFileLocation)
{
try {
OutputStream out = null;
int read = 0;
byte[] bytes = new byte[1024];
out = new FileOutputStream(new File(uploadedFileLocation));
while ((read = uploadedInputStream.read(bytes)) != -1)
{
out.write(bytes, 0, read);
}
out.flush();
out.close();
} catch (IOException e)
{
e.printStackTrace();
}
}
}
有人能帮忙吗
String url="http://localhost:8080/Cloud/webresources/fileupload";
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
InputStreamEntity reqEntity = new InputStreamEntity(new FileInputStream(new File("C:/localstore/ankita/Desert.jpg")), -1);
reqEntity.setContentType("binary/octet-stream");
reqEntity.setChunked(true); // Send in multiple parts if needed
httppost.setEntity(reqEntity);
HttpResponse response = httpclient.execute(httppost);
web服务将是什么样子?您不能这样做。您不能在HTTP请求中传递流,因为流是不可序列化的
方法是创建一个
HttpEntity
来包装流(例如InputStreamEntity
),然后使用setEntity
将其附加到HttpPOST
对象。然后发送POST,客户端将从您的流中读取并发送字节作为请求的“POST数据”。感谢您的回复。我会尽量这样做。我会告诉你们它是否有效。我得到了下面的东西,但web服务将如何称呼它?在上面的末尾添加了代码。