Generate a POJO dynamically according to a JSON?












-1















Is it possible to generate a POJO dynamically according to a JSON ,which coming from request body ?
I guess maybe there is a way to convert this JSON to Object, so I can call getters and setters method in my code.
I need this POJO in Drools.






java drools







share|improve this question























  • use JSONObject and JSONArray classes.. or JsonNode if using jackson

    – Kartik
    Nov 27 '18 at 3:21


















-1















Is it possible to generate a POJO dynamically according to a JSON ,which coming from request body ?
I guess maybe there is a way to convert this JSON to Object, so I can call getters and setters method in my code.
I need this POJO in Drools.






java drools







share|improve this question























  • use JSONObject and JSONArray classes.. or JsonNode if using jackson

    – Kartik
    Nov 27 '18 at 3:21
















-1












-1








-1








Is it possible to generate a POJO dynamically according to a JSON ,which coming from request body ?
I guess maybe there is a way to convert this JSON to Object, so I can call getters and setters method in my code.
I need this POJO in Drools.






java drools







share|improve this question














Is it possible to generate a POJO dynamically according to a JSON ,which coming from request body ?
I guess maybe there is a way to convert this JSON to Object, so I can call getters and setters method in my code.
I need this POJO in Drools.






java drools




java drools






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 27 '18 at 3:20









epicGeekepicGeek

276




276













  • use JSONObject and JSONArray classes.. or JsonNode if using jackson

    – Kartik
    Nov 27 '18 at 3:21





















  • use JSONObject and JSONArray classes.. or JsonNode if using jackson

    – Kartik
    Nov 27 '18 at 3:21



















use JSONObject and JSONArray classes.. or JsonNode if using jackson

– Kartik
Nov 27 '18 at 3:21







use JSONObject and JSONArray classes.. or JsonNode if using jackson

– Kartik
Nov 27 '18 at 3:21














1 Answer
1






active

oldest

votes


















0














You can use Gson for the above scenario. Suppose PojoClass is the class
containing the getters and setters of the JSON fields. Then you can use the
following lines of code:-



Gson gson = new Gson();

Reader reader = new FileReader("C:\example.json")

PojoClass pclass = gson.fromJson(reader, PojoClass.class);





share|improve this answer

























    Your Answer






    StackExchange.ifUsing("editor", function () {
    StackExchange.using("externalEditor", function () {
    StackExchange.using("snippets", function () {
    StackExchange.snippets.init();
    });
    });
    }, "code-snippets");

    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "1"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53492245%2fgenerate-a-pojo-dynamically-according-to-a-json%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    You can use Gson for the above scenario. Suppose PojoClass is the class
    containing the getters and setters of the JSON fields. Then you can use the
    following lines of code:-



    Gson gson = new Gson();
    
Reader reader = new FileReader("C:\example.json")
    
PojoClass pclass = gson.fromJson(reader, PojoClass.class);





    share|improve this answer






























      0














      You can use Gson for the above scenario. Suppose PojoClass is the class
      containing the getters and setters of the JSON fields. Then you can use the
      following lines of code:-



      Gson gson = new Gson();
      
Reader reader = new FileReader("C:\example.json")
      
PojoClass pclass = gson.fromJson(reader, PojoClass.class);





      share|improve this answer




























        0












        0








        0







        You can use Gson for the above scenario. Suppose PojoClass is the class
        containing the getters and setters of the JSON fields. Then you can use the
        following lines of code:-



        Gson gson = new Gson();
        
Reader reader = new FileReader("C:\example.json")
        
PojoClass pclass = gson.fromJson(reader, PojoClass.class);





        share|improve this answer















        You can use Gson for the above scenario. Suppose PojoClass is the class
        containing the getters and setters of the JSON fields. Then you can use the
        following lines of code:-



        Gson gson = new Gson();
        
Reader reader = new FileReader("C:\example.json")
        
PojoClass pclass = gson.fromJson(reader, PojoClass.class);






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Nov 27 '18 at 5:36









        Kartik

        3,75731435




        3,75731435










        answered Nov 27 '18 at 3:47









        Priyadeep DattaPriyadeep Datta

        192




        192
































            draft saved

            draft discarded




















































            Thanks for contributing an answer to Stack Overflow!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid …



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53492245%2fgenerate-a-pojo-dynamically-according-to-a-json%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            -

            Popular posts from this blog

            A CLEAN and SIMPLE way to add appendices to Table of Contents and bookmarks

            Image
            0 I found a lot of questions abount appendices and ToC. Many users want appendices to be grouped in an Appendix part, however some problems arise with ToC, hyperref, PDF viewer bookmarks, and so on. There are different solutions which require extra packages, command patching and other extra code, however none of them satisfies me. I almost found an easy way to accomplish a good result, where appendices are added to bookmarks in the right way and hyperref links point to the right page. However, the number of the "Appendix" part page is wrong (it's the number of appendix A). Is there any EASY way to fix that? This is a MWE: documentclass{book} usepackage[nottoc,notlot,notlof]{tocbibind} usepackage{hyperref} begin{document} frontmatter tableofcontents mainmatter part{First} chapter{...
            Read more

            Calculate evaluation metrics using cross_val_predict sklearn

            Image
            1 In the sklearn.model_selection.cross_val_predict page it is stated: Generate cross-validated estimates for each input data point. It is not appropriate to pass these predictions into an evaluation metric. Can someone explain what does it mean? If this gives estimate of Y (y prediction) for every Y (true Y), why can't I calculate metrics such as RMSE or coefficient of determination using these results? python scikit-learn cross-validation share | improve this question edited Nov 28 '18 at 17:52 desertnaut 20.3k 7 43 79 ...
            Read more

            Insert data from modal to MySQL (multiple modal on website)

            Image
            0 I have problem with inserting data to MySQL from modal. My modal: <a href="#" class="badge badge-pill badge-success">6 komentarzy</a> <a href="#" class="badge badge-pill badge-danger">brak komentarzy</a> <a data-toggle="modal" href="#add_desk_comm_{$desk_['desk_id']}" data-target="#add_desk_comm_{$desk_['desk_id']}" class="ediiit">(dodaj)</a> <div class="modal fade" id="add_desk_comm_{$desk_['desk_id']}" tabindex="-1" role="dialog" aria-labelledby="edit_printer" aria-hidden="true"> <div class="modal-dialog" role="document"> ...
            Read more