In Rest API, need to construct ZIP and download to client system
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0
I have a REST API, which need to :
1. Create a few Json files from objects
2. Zip all of them
3. Download to client system - whoever is accessing the URL.
I am able to do step 1 and 2, but on doing step 3, it is downloading to my server, but not to client.
Currently i am trying in my local, Later this code moves to AWS, not sure there also it will download into the server or client local:
Code for step 3:
public void downloadZip(String zipFileName)
{
File file = new File(zipFileName);
if(!file.exists()){
System.out.println("file not found");
}
OutputStream out = null;
try
{
out = new FileOutputStream("test_"+zipFileName);
FileInputStream in = new FileInputStream(file);
byte buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) > 0){
out.write(buffer, 0, length);
}
in.close();
out.flush();
}
catch (IOException e)
{
e.printStackTrace();
}
}
java rest file download zip
asked Nov 22 '18 at 1:56
vasuvasu
416
add a comment |
0
I have a REST API, which need to :
1. Create a few Json files from objects
2. Zip all of them
3. Download to client system - whoever is accessing the URL.
I am able to do step 1 and 2, but on doing step 3, it is downloading to my server, but not to client.
Currently i am trying in my local, Later this code moves to AWS, not sure there also it will download into the server or client local:
Code for step 3:
public void downloadZip(String zipFileName)
{
File file = new File(zipFileName);
if(!file.exists()){
System.out.println("file not found");
}
OutputStream out = null;
try
{
out = new FileOutputStream("test_"+zipFileName);
FileInputStream in = new FileInputStream(file);
byte buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) > 0){
out.write(buffer, 0, length);
}
in.close();
out.flush();
}
catch (IOException e)
{
e.printStackTrace();
}
}
java rest file download zip
asked Nov 22 '18 at 1:56
vasuvasu
416
You code is just reading a file and writing it to another file
– Scary Wombat
Nov 22 '18 at 2:01
Have a look at codejava.net/java-ee/servlet/java-servlet-download-file-example
– Scary Wombat
Nov 22 '18 at 2:02
Possible duplicate of Download a zip file using Restful services
– htpvl
Nov 22 '18 at 2:07
add a comment |
0
0
0
I have a REST API, which need to :
1. Create a few Json files from objects
2. Zip all of them
3. Download to client system - whoever is accessing the URL.
I am able to do step 1 and 2, but on doing step 3, it is downloading to my server, but not to client.
Currently i am trying in my local, Later this code moves to AWS, not sure there also it will download into the server or client local:
Code for step 3:
public void downloadZip(String zipFileName)
{
File file = new File(zipFileName);
if(!file.exists()){
System.out.println("file not found");
}
OutputStream out = null;
try
{
out = new FileOutputStream("test_"+zipFileName);
FileInputStream in = new FileInputStream(file);
byte buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) > 0){
out.write(buffer, 0, length);
}
in.close();
out.flush();
}
catch (IOException e)
{
e.printStackTrace();
}
}
java rest file download zip
asked Nov 22 '18 at 1:56
vasuvasu
416
I have a REST API, which need to :
1. Create a few Json files from objects
2. Zip all of them
3. Download to client system - whoever is accessing the URL.
I am able to do step 1 and 2, but on doing step 3, it is downloading to my server, but not to client.
Currently i am trying in my local, Later this code moves to AWS, not sure there also it will download into the server or client local:
Code for step 3:
public void downloadZip(String zipFileName)
{
File file = new File(zipFileName);
if(!file.exists()){
System.out.println("file not found");
}
OutputStream out = null;
try
{
out = new FileOutputStream("test_"+zipFileName);
FileInputStream in = new FileInputStream(file);
byte buffer = new byte[4096];
int length;
while ((length = in.read(buffer)) > 0){
out.write(buffer, 0, length);
}
in.close();
out.flush();
}
catch (IOException e)
{
e.printStackTrace();
}
}
java rest file download zip
java rest file download zip
asked Nov 22 '18 at 1:56
vasuvasu
416
asked Nov 22 '18 at 1:56
vasuvasu
416
asked Nov 22 '18 at 1:56
vasuvasu
416
asked Nov 22 '18 at 1:56
vasuvasu
416
asked Nov 22 '18 at 1:56
vasuvasu
416
416
You code is just reading a file and writing it to another file
– Scary Wombat
Nov 22 '18 at 2:01
Have a look at codejava.net/java-ee/servlet/java-servlet-download-file-example
– Scary Wombat
Nov 22 '18 at 2:02
Possible duplicate of Download a zip file using Restful services
– htpvl
Nov 22 '18 at 2:07
add a comment |
You code is just reading a file and writing it to another file
– Scary Wombat
Nov 22 '18 at 2:01
Have a look at codejava.net/java-ee/servlet/java-servlet-download-file-example
– Scary Wombat
Nov 22 '18 at 2:02
Possible duplicate of Download a zip file using Restful services
– htpvl
Nov 22 '18 at 2:07
You code is just reading a file and writing it to another file
– Scary Wombat
Nov 22 '18 at 2:01
You code is just reading a file and writing it to another file
– Scary Wombat
Nov 22 '18 at 2:01
Have a look at codejava.net/java-ee/servlet/java-servlet-download-file-example
– Scary Wombat
Nov 22 '18 at 2:02
Have a look at codejava.net/java-ee/servlet/java-servlet-download-file-example
– Scary Wombat
Nov 22 '18 at 2:02
Possible duplicate of Download a zip file using Restful services
– htpvl
Nov 22 '18 at 2:07
Possible duplicate of Download a zip file using Restful services
– htpvl
Nov 22 '18 at 2:07
add a comment |
1 Answer
1
active
oldest
votes
0
Try this, using content type application/zip.
if(file.exists()){
byte arr = FileUtils.readFileToByteArray(file);
return ResponseEntity.ok().contentLength(arr.length)
.header(HttpHeaders.CONTENT_TYPE, "application/zip")
.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + file.getName())
.body(arr);
} else {
return ResponseEntity.notFound().build();
}
answered Nov 22 '18 at 2:02
htpvlhtpvl
647310
Is this aSpringsolution?
– Scary Wombat
Nov 22 '18 at 2:05
@Scary, yes, it is :-)
– htpvl
Nov 22 '18 at 2:06
I wonder if the OP is usingSpring- maybe eh.
– Scary Wombat
Nov 22 '18 at 2:07
@Scary, I just found it is duplicated question. Flagged it already ;-)
– htpvl
Nov 22 '18 at 2:08
1
Yeah, but I prefer your answer, but wish it had pointers for using withoutSpring
– Scary Wombat
Nov 22 '18 at 2:13
|
show 5 more comments
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
Try this, using content type application/zip.
if(file.exists()){
byte arr = FileUtils.readFileToByteArray(file);
return ResponseEntity.ok().contentLength(arr.length)
.header(HttpHeaders.CONTENT_TYPE, "application/zip")
.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + file.getName())
.body(arr);
} else {
return ResponseEntity.notFound().build();
}
answered Nov 22 '18 at 2:02
htpvlhtpvl
647310
Is this aSpringsolution?
– Scary Wombat
Nov 22 '18 at 2:05
@Scary, yes, it is :-)
– htpvl
Nov 22 '18 at 2:06
I wonder if the OP is usingSpring- maybe eh.
– Scary Wombat
Nov 22 '18 at 2:07
@Scary, I just found it is duplicated question. Flagged it already ;-)
– htpvl
Nov 22 '18 at 2:08
1
Yeah, but I prefer your answer, but wish it had pointers for using withoutSpring
– Scary Wombat
Nov 22 '18 at 2:13
|
show 5 more comments
0
Try this, using content type application/zip.
if(file.exists()){
byte arr = FileUtils.readFileToByteArray(file);
return ResponseEntity.ok().contentLength(arr.length)
.header(HttpHeaders.CONTENT_TYPE, "application/zip")
.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + file.getName())
.body(arr);
} else {
return ResponseEntity.notFound().build();
}
answered Nov 22 '18 at 2:02
htpvlhtpvl
647310
Is this aSpringsolution?
– Scary Wombat
Nov 22 '18 at 2:05
@Scary, yes, it is :-)
– htpvl
Nov 22 '18 at 2:06
I wonder if the OP is usingSpring- maybe eh.
– Scary Wombat
Nov 22 '18 at 2:07
@Scary, I just found it is duplicated question. Flagged it already ;-)
– htpvl
Nov 22 '18 at 2:08
1
Yeah, but I prefer your answer, but wish it had pointers for using withoutSpring
– Scary Wombat
Nov 22 '18 at 2:13
|
show 5 more comments
0
0
0
Try this, using content type application/zip.
if(file.exists()){
byte arr = FileUtils.readFileToByteArray(file);
return ResponseEntity.ok().contentLength(arr.length)
.header(HttpHeaders.CONTENT_TYPE, "application/zip")
.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + file.getName())
.body(arr);
} else {
return ResponseEntity.notFound().build();
}
answered Nov 22 '18 at 2:02
htpvlhtpvl
647310
Try this, using content type application/zip.
if(file.exists()){
byte arr = FileUtils.readFileToByteArray(file);
return ResponseEntity.ok().contentLength(arr.length)
.header(HttpHeaders.CONTENT_TYPE, "application/zip")
.header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + file.getName())
.body(arr);
} else {
return ResponseEntity.notFound().build();
}
answered Nov 22 '18 at 2:02
htpvlhtpvl
647310
answered Nov 22 '18 at 2:02
htpvlhtpvl
647310
answered Nov 22 '18 at 2:02
htpvlhtpvl
647310
answered Nov 22 '18 at 2:02
htpvlhtpvl
647310
647310
Is this aSpringsolution?
– Scary Wombat
Nov 22 '18 at 2:05
@Scary, yes, it is :-)
– htpvl
Nov 22 '18 at 2:06
I wonder if the OP is usingSpring- maybe eh.
– Scary Wombat
Nov 22 '18 at 2:07
@Scary, I just found it is duplicated question. Flagged it already ;-)
– htpvl
Nov 22 '18 at 2:08
1
Yeah, but I prefer your answer, but wish it had pointers for using withoutSpring
– Scary Wombat
Nov 22 '18 at 2:13
|
show 5 more comments
Is this aSpringsolution?
– Scary Wombat
Nov 22 '18 at 2:05
@Scary, yes, it is :-)
– htpvl
Nov 22 '18 at 2:06
I wonder if the OP is usingSpring- maybe eh.
– Scary Wombat
Nov 22 '18 at 2:07
@Scary, I just found it is duplicated question. Flagged it already ;-)
– htpvl
Nov 22 '18 at 2:08
1
Yeah, but I prefer your answer, but wish it had pointers for using withoutSpring
– Scary Wombat
Nov 22 '18 at 2:13
Is this a
Spring solution?– Scary Wombat
Nov 22 '18 at 2:05
Is this a
Spring solution?– Scary Wombat
Nov 22 '18 at 2:05
@Scary, yes, it is :-)
– htpvl
Nov 22 '18 at 2:06
@Scary, yes, it is :-)
– htpvl
Nov 22 '18 at 2:06
I wonder if the OP is using
Spring - maybe eh.– Scary Wombat
Nov 22 '18 at 2:07
I wonder if the OP is using
Spring - maybe eh.– Scary Wombat
Nov 22 '18 at 2:07
@Scary, I just found it is duplicated question. Flagged it already ;-)
– htpvl
Nov 22 '18 at 2:08
@Scary, I just found it is duplicated question. Flagged it already ;-)
– htpvl
Nov 22 '18 at 2:08
1
1
Yeah, but I prefer your answer, but wish it had pointers for using without
Spring– Scary Wombat
Nov 22 '18 at 2:13
Yeah, but I prefer your answer, but wish it had pointers for using without
Spring– Scary Wombat
Nov 22 '18 at 2:13
|
show 5 more comments
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You code is just reading a file and writing it to another file
– Scary Wombat
Nov 22 '18 at 2:01
Have a look at codejava.net/java-ee/servlet/java-servlet-download-file-example
– Scary Wombat
Nov 22 '18 at 2:02
Possible duplicate of Download a zip file using Restful services
– htpvl
Nov 22 '18 at 2:07