How to convert json to html format

Method to convert json into html format: 1. Use [/ui2/cl_json=>serialize] to generate a JSON string; 2. Call [TRANSFORMATION sjson2html] to convert HTML.

The operating environment of this tutorial: windows10 system, html5 version, DELL G3 computer. This method is suitable for all brands of computers.

Method to convert json into html format:

JSON format is often used to transmit data in the development of ABAP interface programs. When monitoring the transmitted JSON string content , it will be very convenient to convert JSON to HTML format for display.

The following provides a simple example to implement the function of converting JSON to HTML and displaying it.

Among them:

1, use /ui2/cl_json=>serialize to generate JSON string,

2, call TRANSFORMATION sjson2html To convert HTML,

3, use cl_abap_browser=>show_html to display HTML.

Code:

REPORT ztest_display_json.
DATA:lv_json     TYPE string,
     lv_convert  TYPE string,
     lo_json_ser TYPE REF TO cl_trex_json_serializer,
     lv_err_text TYPE string,
     lt_ekpo     TYPE STANDARD TABLE OF ekpo.
SELECT *
  INTO CORRESPONDING FIELDS OF TABLE lt_ekpo
  FROM ekpo
  UP TO 10 ROWS.
* 将内表转化为JSON
lv_json = /ui2/cl_json=>serialize( data = lt_ekpo[] ).
TRY.
*   将JSON转换为HTML
    CALL TRANSFORMATION sjson2html SOURCE XML lv_json
                                   RESULT XML DATA(lv_html).
  CATCH cx_xslt_runtime_error INTO DATA(lo_err).
    lv_err_text = lo_err->get_text( ).
    WRITE: lv_err_text.
    RETURN.
ENDTRY.
* 显示HTML
lv_convert = cl_abap_codepage=>convert_from( lv_html ).
cl_abap_browser=>show_html( html_string = lv_convert ).
REPORT ztest_display_json.
 
DATA:lv_json     TYPE string,
     lv_convert  TYPE string,
     lo_json_ser TYPE REF TO cl_trex_json_serializer,
     lv_err_text TYPE string,
     lt_ekpo     TYPE STANDARD TABLE OF ekpo.
 
SELECT *
  INTO CORRESPONDING FIELDS OF TABLE lt_ekpo
  FROM ekpo
  UP TO 10 ROWS.
 
* 将内表转化为JSON
lv_json = /ui2/cl_json=>serialize( data = lt_ekpo[] ).
 
TRY.
*   将JSON转换为HTML
    CALL TRANSFORMATION sjson2html SOURCE XML lv_json
                                   RESULT XML DATA(lv_html).
  CATCH cx_xslt_runtime_error INTO DATA(lo_err).
    lv_err_text = lo_err->get_text( ).
    WRITE: lv_err_text.
    RETURN.
ENDTRY.
 
* 显示HTML
lv_convert = cl_abap_codepage=>convert_from( lv_html ).
cl_abap_browser=>show_html( html_string = lv_convert ).

After running, a window will pop up to display HTML. You can also collapse or expand JSON through ‘ ’ ‘—’, which is very convenient.

If you don’t want to display HTML in the window, you can use the parameter CONTAINER in show_html to display HTML in the screen you draw.

Others: TRANSFORMATION sjson2html can be viewed through Tcode STRANS.

Related learning recommendations: html tutorial

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