On Fri, Sep 8, 2017 at 5:13 AM, chetan choulwar <[email protected]> wrote: > Thanks a lot for your input. I tried it and it worked as expected. But I'm > stuck at a situation where I want to retrieve a value from nested block, so > can you help me out? > For example, > By calling REST API "https://xyz.com/resources/resource"; gives me { > > "value"={"name":"abc.txt"} > > } > and calling "https://abc.com/resources/resource"; gives me > {"title":"idontknow.txt"} > now how can I take name out from the first json response? > > Once again thanks a lot for your answer..!:)
I am not sure why my first answer wouldn't work here. All you are doing is specifying that property name in json is an alias that can be used for property in POJO, so you would access it with field name (or getter) you have. But at the same time if these are effectively different objects it is unclear why same Java class should be used anyway -- perhaps they should use different POJOs. -+ Tatu +- > > On Friday, September 8, 2017 at 9:19:49 AM UTC+5:30, Tatu Saloranta wrote: >> >> On Thu, Sep 7, 2017 at 5:24 AM, chetan choulwar <[email protected]> >> wrote: >> > Hi All, >> > >> > I'm calling different REST APIs and getting different kinda JSON >> > responses; >> > is there any way to pick particular attribute from different JSON >> > responses >> > and map it to a one common property of defined POJO (Resource for my >> > API) >> > that can then be sent as a response from the REST API that I've exposed? >> > >> > For Example: >> > By calling REST API "https://xyz.com/resources/resource"; gives me >> > {"name":"abc.txt"} >> > and calling "https://abc.com/resources/resource"; gives me >> > {"title":"idontknow.txt"} >> > >> > And I have one resource class defined for my APIs to return i.e. >> > MyResource >> > { >> > String fileName; >> > } >> > >> > So is there any way that I can map "name"/"title" to fileName i.e. how >> > can I >> > use jackson to deserialize these jsons to MyResource type? >> > >> > Please let me know if this is valid? and if yes, how? >> >> If you have many different names to use, it may be simpler to just >> bind JSON to `Map` or `JsonNode`, and extract value explicitly. >> >> But if there are just couple of values, you can use `@JsonAlias` like: >> >> public class POJO { >> @JsonAlias({ "name", "title" }) >> public String fileName; >> } >> >> which would then accept alternate names "name" and "title", but >> serialize as "fileName" (which it also accepts). >> This annotations was added in Jackson 2.9 >> >> -+ Tatu +- > > -- > You received this message because you are subscribed to the Google Groups > "jackson-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "jackson-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
