使用CL_JAVA_SCRIPT从ABAP执行jQuery文件 [英] Execute jQuery file from ABAP using CL_JAVA_SCRIPT

问题描述

我想在abap中使用CL_JAVA_SCRIPT执行一个javascript文件:jQuery.js，该文件是我从url获得的. 这是我的代码:

I want to use CL_JAVA_SCRIPT in abap to execute a javascript file : jQuery.js which i get from url. And this is my code :

REPORT ZCLIENT.  
DATA: LV_CLIENT TYPE REF TO IF_HTTP_CLIENT.  
DATA:lv_URL TYPE STRING .  
lv_URL  = 'https://resources/jquery.js'.  
* Create client  
   CALL METHOD CL_HTTP_CLIENT=>CREATE_BY_URL  
     EXPORTING  
       URL                = lv_URL  
     IMPORTING  
       CLIENT             = LV_CLIENT  
     EXCEPTIONS  
       ARGUMENT_NOT_FOUND = 1  
       PLUGIN_NOT_ACTIVE  = 2  
       INTERNAL_ERROR     = 3  
       OTHERS             = 4.  
   IF SY-SUBRC NE 0.  
     MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO  
       WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.  
   ENDIF.  
*   LV_CLIENT->REQUEST->SET_CONTENT_TYPE(  
*       EXPORTING  
*         CONTENT_TYPE = 'application/javascript; charset=UTF-8'  
*         ).  
   CALL METHOD LV_CLIENT->REQUEST->SET_FORMFIELD_ENCODING  
     EXPORTING  
       FORMFIELD_ENCODING = LV_CLIENT->REQUEST->CO_ENCODING_URL.  
* Get request:  
   CALL METHOD LV_CLIENT->SEND  
     EXCEPTIONS  
       HTTP_COMMUNICATION_FAILURE = 1  
       HTTP_INVALID_STATE         = 2  
       HTTP_PROCESSING_FAILED     = 3  
       OTHERS                     = 4.  
   IF SY-SUBRC NE 0.  
     MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO  
       WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.  
   ENDIF.  
* Prepare client-receive:  
   CALL METHOD LV_CLIENT->RECEIVE  
     EXCEPTIONS  
       HTTP_COMMUNICATION_FAILURE = 1  
       HTTP_INVALID_STATE         = 2  
       HTTP_PROCESSING_FAILED     = 3  
       OTHERS                     = 4.  
* Get HTML:  
DATA EV_DATA TYPE STRING.  
CONSTANTS co_line_size TYPE i VALUE 150.  
TYPES: t_line TYPE c LENGTH co_line_size.  
DATA: l_string TYPE string,  
      lt_lines TYPE TABLE OF t_line.  
FIELD-SYMBOLS: <l_line> TYPE t_line.  
   EV_DATA = LV_CLIENT->RESPONSE->GET_CDATA( ).  
"   compile js  
data GET_VALUE type STRING.  
data JS_PROCESSOR type ref to CL_JAVA_SCRIPT.  
data SOURCE type STRING.  
concatenate  EV_DATA SOURCE into SOURCE SEPARATED BY cl_abap_char_utilities=>cr_lf.  
JS_PROCESSOR = CL_JAVA_SCRIPT=>CREATE( ).  
JS_PROCESSOR->COMPILE( SCRIPT_NAME = 'TEST_GET.JS'  
  SCRIPT =  EV_DATA ).  
if JS_PROCESSOR->LAST_CONDITION_CODE <> 0.  
write: / 'Error in COMPILE',  
  JS_PROCESSOR->LAST_ERROR_MESSAGE.  
else.  
write / 'JavaScript was compiled'.  
endif.  
skip.  
JS_PROCESSOR->EXECUTE(  
exporting SCRIPT_NAME = 'TEST_GET.JS' ).  
if JS_PROCESSOR->LAST_CONDITION_CODE <> 0.  
write: / 'Error in EXECUTE',  
  JS_PROCESSOR->LAST_ERROR_MESSAGE.  
else.  
write / 'JavaScript was executed'.  
endif.  
skip.  

我的文件已经很好地编译，但是在执行我的代码时，出现诸如未定义窗口"之类的错误.

my file is well compiled but When executing my code i'm getting some errors like "window is not defined" .

应如何解决问题

推荐答案

jQuery是一个JavaScript库，旨在与浏览器的文档对象模型(DOM)一起使用，并用于UI，动画，客户端逻辑等.它是建立在DOM之上的，所有功能都依赖于DOM，尝试在ABAP系统上执行jQuery.js文件将不起作用，因为没有浏览器，并且没有jQuery可以与之交互的DOM.

jQuery is a JavaScript library designed to work with the browser's document object model (DOM) and it used for the UI, animations, client side logic, etc. It is built on top of the DOM and all functionality depends on that, trying to execute the jQuery.js file on an ABAP system will not work as there is no browser and there is no DOM for jQuery to interact with.

您可以在ABAP服务器上找到更多信息以及它在SAP网站上的作用和不作用

You can find further information on the ABAP server and what it does and does not do at the SAP website ABAP Application Server page.

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