Java Community | Help. Code. Learn.•6mo ago

using String to represent date

hey guys. i want to have a method that accepts fromDate and toDate args. and then later in this method i will concat the args to the string:

"<FrDt>"+fromDate+"</FrDt>\n" +
"<ToDt>"+toDate+"</ToDt>\n"

"<FrDt>"+fromDate+"</FrDt>\n" +
"<ToDt>"+toDate+"</ToDt>\n"

can i just use String datatype on the parameters? bc using any date datatype doesnt make sense. thx

61 Replies

JavaBot•6mo ago

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Unknown User•6mo ago

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bambyzasOP•6mo ago

but why cant i just use strings?

Unknown User•6mo ago

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bambyzasOP•6mo ago

ok, now its clear but where do i start then? bc theres too much things going on. LocalDate, Date, DateFormatter, and so on

Unknown User•6mo ago

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bambyzasOP•6mo ago

but i have another question

public void method1(){
  //some stuff
  getTransactionsByIbanAndDate(iban,???,???);
  //other stuff
}

public void getTransactionsByIbanAndDate(String iban, ???, ???){
  //concat args to string
}

public void method1(){
  //some stuff
  getTransactionsByIbanAndDate(iban,???,???);
  //other stuff
}

public void getTransactionsByIbanAndDate(String iban, ???, ???){
  //concat args to string
}

i just my dates to be in 2020-12-12 format. i dont need time, GMT appended, etc can i use smth like this?: LocalDate date = LocalDate.of(2020, 1, 8);

tjoener•6mo ago

yes https://docs.oracle.com/javase/8/docs/api/java/time/package-summary.html This page has a good overview on all the "new" date and time types

bambyzasOP•6mo ago

and then i can do date.toString() and append it to other Strings?

tjoener•6mo ago

sure, but then you will use the default formatting But if that's ok, that's ok And also don't write out your xml by doing string concatenations, but use the actual XML DOMDocument etc java provides

bambyzasOP•6mo ago

you mean this formatting? 2020-01-08? bc thats what i need

tjoener•6mo ago

Or even better, spring can automatically generate those for you just like it does json Yes Just remember, if they ever decide to change the formatting, your application will break

bambyzasOP•6mo ago

can you elaborate? rn i have this

tjoener•6mo ago

https://www.baeldung.com/spring-xml-requestbody

Baeldung

Using XML in @RequestBody in Spring REST | Baeldung

Learn how to leverage Jackson XML to use XML within Spring REST.

bambyzasOP•6mo ago

sorry, i dont know what to do with this article. it doesnt provide me any info

Unknown User•6mo ago

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bambyzasOP•6mo ago

so again what is the problem with my method?

Unknown User•6mo ago

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bambyzasOP•6mo ago

and what are the alternatives?

tjoener•6mo ago

requestbody xml, and have jackson write the xml for you

Unknown User•6mo ago

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tjoener•6mo ago

Based on objects google json doesn't support xml

Unknown User•6mo ago

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tjoener•6mo ago

The baeldung article is fairly complete though you need jackson-dataformat-xml You make an object containing what you want your xml to look like With the same annotations as used for json basically

Unknown User•6mo ago

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tjoener•6mo ago

yeah fine, but that's not spring boot related He's working in a spring boot app where you don't need to do any of this manual stuff

Unknown User•6mo ago

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bambyzasOP•6mo ago

i have two methods in my service. one getCurrentTransactions accepts String requestBody that comes from the controller (controller accepts xml body). but i need to have another method in my service getCurrentTransactionsByIbanAndDate and i need to append dates and iban to the xml body. and idk how to do it. thats why i have xml as a string

tjoener•6mo ago

"getCurrentTransactions accepts String requestBody" An actual string? or json or xml?

bambyzasOP•6mo ago

@GetMapping(value = "/transactions", consumes = "application/xml", produces = "application/xml")
    public String getCurrentTransactions(@RequestBody String requestBody) throws JAXBException, IOException {
        return bgwService.getCurrentSwedbankTransactions(requestBody);
    }

@GetMapping(value = "/transactions", consumes = "application/xml", produces = "application/xml")
    public String getCurrentTransactions(@RequestBody String requestBody) throws JAXBException, IOException {
        return bgwService.getCurrentSwedbankTransactions(requestBody);
    }

and service method looks like this:

public String getCurrentTransactions(String requestBody) {
        log.info("BGWService.getCurrentTransactions");
        sendAccountStatementRequest(requestBody);
        //other stuff

public String getCurrentTransactions(String requestBody) {
        log.info("BGWService.getCurrentTransactions");
        sendAccountStatementRequest(requestBody);
        //other stuff

tjoener•6mo ago

sendAccountStatementRequest is an external api?

bambyzasOP•6mo ago

yes

tjoener•6mo ago

that's just passing it through, which is... not the best solution but fine for now I guess And the other method you have to modify the xml for?

bambyzasOP•6mo ago

thats not what i asked for can smb help me with this?

tjoener•6mo ago

well, if you only need to append those items parse the requestbody in an xml document And append those two fields

tjoener•6mo ago

https://mkyong.com/java/how-to-read-xml-file-in-java-dom-parser/

Mkyong.com

How to read XML file in Java - (DOM Parser) - Mkyong.com

This tutorial will show you how to use the Java built-in DOM parser to read an XML file.

bambyzasOP•6mo ago

cant parse bc i dont have xml body

tjoener•6mo ago

but you have the requestbody what else are you appending to?

bambyzasOP•6mo ago

i dont ffs

tjoener•6mo ago

what are you APPENDING to then?

bambyzasOP•6mo ago

give me a second ill show u brb

bambyzasOP•6mo ago

when using 2nd controller i cant use getAllTransactions, bc it needs to accept request body, and i dont have it. so i need to create it somewhere. so i created another method in the service, and in its body i have String with xml

Unknown User•6mo ago

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bambyzasOP•6mo ago

yeah, but i dont have the xml request body when using 2nd controller :/

Unknown User•6mo ago

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bambyzasOP•6mo ago

what? i dont understand ur sentence what is it?

Unknown User•6mo ago

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bambyzasOP•6mo ago

both service methods should have request bodies in them idk what u asked tbh

Unknown User•6mo ago

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bambyzasOP•6mo ago

correct. getAllTransacationsByIbanAndDate method doesnt have the xml request body. thats why i have this

bambyzasOP•6mo ago

i was thinking that maybe i can extract this xml req body, and just use it everywhere i need. in this method id insert needed values for needed tags

Unknown User•6mo ago

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bambyzasOP•6mo ago

no u didnt

Unknown User•6mo ago

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bambyzasOP•6mo ago

second controller cant accept xml body. can it still magically generate xml?

Unknown User•6mo ago

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bambyzasOP•6mo ago

thats not what i need i dont need my contrller to return xml

Unknown User•6mo ago

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bambyzasOP•6mo ago

what bc ill be sending that xml to an external api?

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using String to represent date