I'm trying to give user ability to download a file which is created after database backup.
this is my controller where I try to generate link for that file and than in Javascript I just make tag with the generated link. after clicking the link chrome says "not allowed to load content from local resource: file:///...". can anyone tell me how to allow to load this resource? I'd prefer not to change the directory which is now /tmp
#RequestMapping(value = "/backup-entire-database", method = RequestMethod.POST)
#ResponseBody
public Responce backupEntireDatabase(#RequestBody Map<String, String> databasePasswordMap) throws MalformedURLException {
String databaseUserPassword = databasePasswordMap.get("password");
ShellScript databaseBackupScript = new ShellScript();
SimpleDateFormat sdfDate = new SimpleDateFormat("yyyy*MM*dd_HH*mm*ss");
Date now = new Date();
String currentTime = sdfDate.format(now);
try {
databaseBackupScript.exec("database-backup", databaseUserPassword , "databaseBackup_"+currentTime, "", "");
} catch (IOException ex) {
java.util.logging.Logger.getLogger(DatabaseBackupController.class.getName()).log(Level.SEVERE, null, ex);
return new Responce(0, ex.getMessage());
} catch (ShellScriptExecutionExeption ex) {
java.util.logging.Logger.getLogger(DatabaseBackupController.class.getName()).log(Level.SEVERE, null, ex);
return new Responce(0, ex.getMessage());
}
File backupFile=new File("/tmp/PATH_TO_FILE/databaseBackup_"+currentTime);
return new Responce(0, backupFile.toURI().toURL().toString());
}
Related
I have an API that offers a file translation service. I have been able to generate a new the new translated file but I have not been able to get it to the client correctly, because the document downloaded it is not readable.
This is my controller code:
[HttpPost]
[Route("TranslateDocument/{inputLanguage}/{outputLanguage}")]
[ProducesResponseType(typeof(FileContentResult), StatusCodes.Status200OK)]
public async Task<ActionResult<FileInfo>> TranslateDocument(string inputLanguage, string outputLanguage, [FromForm] IFormFile file)
{
try
{
FileContentResult result = await _deeplService.TranslateFile(inputLanguage, outputLanguage, file);
return Ok(result);
}
catch (Exception ex)
{
return ManageExceptions(ex);
}
}
In my service I have the following function:
public async Task<FileContentResult> TranslateFile(string inputLang, string outputLang, IFormFile file){
//Code to translate the file into outputLang
...
//Get bytes from Document generated
byte[] bytes = System.IO.File.ReadAllBytes("localpath from doc");
//Send the File to Download.
return new FileContentResult(bytes, "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
}
And this is the response I am getting on the client site:
{
"fileContents": "UEsDBBQAAA...AAyCUAAAAA",
"contentType": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
"fileDownloadName": "",
"lastModified": null,
"entityTag": null,
"enableRangeProcessing": false
}
And when I do the const url = window.URL.createObjectURL(new Blob([response.fileContents], {type: "application/vnd.openxmlformats-officedocument.wordprocessingml.document"}));, the file downloaded is not readable in word
I am trying to call a service from angularjs that produces a docx document.
Angularjs is supposed to display the save prompt of the web browser, and then save the document.
When I open the saved document, what I get in the docx file is :
Undefined
Api rest :
#RequestMapping(value = "/create-avenant",
method = RequestMethod.POST,
produces = MediaType.APPLICATION_JSON_VALUE)
#Timed
public void getAvenant(#RequestBody AvenantDTO avenant, HttpServletResponse response) {
contratService.createAvenant(response, avenant);
}
service produces a XWPFDocument and send to browser :
private void sendDocToBrowser(HttpServletResponse response, XWPFDocument doc) throws IOException {
try
{
byte[] buffer = new byte[8192];
ByteArrayOutputStream baos = new ByteArrayOutputStream();
doc.write(baos);
response.setHeader("Content-Disposition", "attachment;filename=myDoc.docx");
response.setContentType("application/docx");
ServletOutputStream outputStream = response.getOutputStream();
baos.writeTo(outputStream);
outputStream.flush();
}
finally
{
outputStream.close();
}
}
Angularjs :
Avenant.create(avenant,function(result){
var blob = new Blob([result.body], { type: 'application/docx' });
var link = document.createElement('a');
link.href = window.URL.createObjectURL(blob);
link.download = 'file.docx';
link.click();
})
Pls How can I access sqlite database on the webserver in codename one? I can only use database API to access database on the device. In order to access this on the webserver I think is quite different thing. Pls I need a snippet code on this. Thanks
Use the code below, not tested and you may have to adjust it to suite your need. Leave a comment if there's an issue:
ConnectionRequest req = new ConnectionRequest() {
#Override
protected void handleException(Exception ex) {
//handle error
}
};
req.setUrl(YourURL);
req.setPost(true);
req.setHttpMethod("POST"); //Change to GET if necessary
req.setDuplicateSupported(true);
req.addArgument("argumentToSendThroughPostOrGet1", "value1");
req.addArgument("argumentToSendThroughPostOrGet2", "value2");
NetworkManager.getInstance().addToQueueAndWait(req);
if (req.getResponseCode() == 200) {
Map<String, Object> out = new HashMap<>();
Display.getInstance().invokeAndBlock(() -> {
JSONParser p = new JSONParser();
try (InputStreamReader r = new InputStreamReader(new ByteArrayInputStream(req.getResponseData()))) {
out.putAll(p.parseJSON(r));
} catch (IOException ex) {
//handle error
}
});
if (!out.isEmpty()) {
List<Map<String, Object>> responses = (List<Map<String, Object>>) out.get("response");
for (Object response : responses) {
Map res = (Map) response;
System.out.println(res.get("key"));
}
} else {
//handle error
}
} else {
//handle error
}
TEST JSON RESPONSE:
{
"response": [
{
"key": "I was returned",
}
]
}
EDIT:
To pass data from TextField:
req.addArgument("argumentToSendThroughPostOrGet1", myTextField.getText());
Based on your comment, you can read those arguments in PHP as simple as below:
$var1 = $_POST["argumentToSendThroughPostOrGet1"];
$var1 = $_GET["argumentToSendThroughPostOrGet1"]; // if GET method is used in Codename One
//Or use $_REQUEST which supports both methods but not advisable to be used for production
...
And you can use those variables in your php code normally.
Example of Usage with MySql Query:
class Connection {
function connect() {
$mysqli = mysqli_init();
$mysqli->real_connect("localhost", "username", "password", "databaseName") or die('Could not connect to database!');
$mysqli->query("SET NAMES 'UTF8'");
return $mysqli;
}
function close() {
mysqli_close($this->connect);
}
}
$connection = new Connection();
$mysqli = $connection->connect();
$mysqli->query("SELECT * FROM MyTable WHERE ColumnName LIKE '%$var1%' ORDER BY PrimaryKeyId ASC LIMIT 100");
My file resides on some location on my machine say C://users//abc.txt and i want to write a java program to transfer this file using REST API over HTTP. I used MockHttpServelet Request to create the request, but somehow i am unable to transfer the file
Use HttpClient:
String url = "http://localhost:8080/upload"; // Replace with your target 'REST API' url
String filePath = "C://users//abc.txt";
CloseableHttpClient httpClient = HttpClients.createDefault();
try {
HttpPost httpPost = new HttpPost(url);
FileEntity entity = new FileEntity(new File(filePath), ContentType.TEXT_PLAIN);
httpPost.setEntity(entity);
HttpResponse httpResponse = httpClient.execute(httpPost);
System.out.println(httpResponse.getStatusLine().getStatusCode()); // Check HTTP code
} finally {
httpClient.close();
}
With Authentication:
String url = "http://localhost:8080/upload"; // Replace with your target 'REST API' url
String filePath = "C://users//abc.txt";
String username = "username"; // Replace with your username
String password = "password"; // Replace with your password
RequestConfig requestConfig =
RequestConfig.custom().
setAuthenticationEnable(true).
build();
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(
AuthScope.ANY,
new UsernamePasswordCredential(username, password));
CloseableHttpClient httpClient =
HttpClients.custom().
setDefaultRequestConfig(requestConfig).
setDefaultCredentialsProvider(credentialsProvider).
build();
try {
HttpPost httpPost = new HttpPost(url);
FileEntity entity = new FileEntity(new File(filePath), ContentType.TEXT_PLAIN);
httpPost.setEntity(entity);
HttpResponse httpResponse = httpClient.execute(httpPost);
System.out.println(httpResponse.getStatusLine().getStatusCode()); // Check HTTP code
} finally {
httpClient.close();
}
String location="C:\\Usersabc.img";
Path path = Paths.get(location);
String name=location.substring(location.lastIndexOf("\\")+1);
MultipartEntity multipart= new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
try {
multipart.addPart("image", new ByteArrayBody(Files.readAllBytes(path), ContentType.APPLICATION_OCTET_STREAM.getMimeType(),name));
}
catch (IOException ex) {
// TODO Auto-generated catch block
ex.printStackTrace();
}
This is my write to excel method which returns javax.ws.rs.core.Response
public Response writeToExcel(UserDeatilsVOWrapper listBook) {
XSSFWorkbook workbook = new XSSFWorkbook();
XSSFSheet spreadsheet = workbook.createSheet("Resource Information");
int rowCount = 0;
createHeaderRow(spreadsheet);
for (UserDetailsVO detailsVO : listBook.getUserDetailsList()) {
Row row = spreadsheet.createRow(++rowCount);
writeBook(detailsVO, row);
}
Response response = null;
try (FileOutputStream outputStream = new FileOutputStream(new File("ResourceInformation.xlsx"))) {
workbook.write(outputStream);
// header required to enable download pop-up and set file name
Response.ok().header("Content-Disposition", "attachment; filename=" + "ResourceInformation.xlsx").build();
}
catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return response;
}
This is my web service:
#POST
#Path(WebServiceConstants.DOWNLOAD_EXCEL)
#Consumes(MediaType.APPLICATION_JSON)
public Response getFile(UserDeatilsVOWrapper wrapper) {
Response respose=new ExportToExcel().writeToExcel(wrapper);
return respose;}
I get a HTTP204 error. I'm using postman. I know, I'm doing a big mistake in write to excel method and when trying to send file along with response.
Also is there any possible way to write a file object on REST response without saving file on server? I'm doing terrible in here. any help is appreciated.
I do not see where you set your file to the response. Normally you would do something like this
File file = new File("ResourceInformation.xlsx"))
// Do your excel-writing here...
ResponseBuilder response = Response.ok((Object) file);
response.header("Content-Disposition", "attachment; filename=" + "ResourceInformation.xlsx");
return response.build();