Qui sto fornendo un esempio per inviare JSON e un file Zip a REST
servizio web che utilizza Oracle UTL_HTTP
post multipart/form-data.
Inizialmente, ho preso il codice di esempio dal blog di Nick Buytaert e poi l'ho modificato per incorporare il JSON
e il file zip.
Invia JSON e un file zip al servizio Web REST utilizzando UTL_HTTP
Il seguente codice PL/SQL eseguirà il REST
autenticazione del servizio Web tramite il token. E dopo, otterrà il JSON
e il BLOB dal tavolo. Comprimerà il BLOB
e poi combinalo con il JSON
convertendolo in base64
digitare i dati. Quindi preparerà l'intestazione e la invierà.
declare l_attachment blob; l_newline varchar2(50) := chr(13) || chr(10); lco_boundary constant varchar2(30) := 'gc0p4Jq0M2Yt08jU534c0p'; l_http_request utl_http.req; l_request_body clob; l_request_body_length number; l_req_body clob; l_http_response utl_http.resp; l_response_header_name varchar2(256); l_response_header_value varchar2(1024); l_response_body varchar2(32767); l_offset number := 1; l_amount number := 2000; l_buffer varchar2(2000); l_clob clob; l_token varchar2(32767); begin -- get the token l_clob := apex_web_service.make_rest_request( p_url => 'https://YourTokenURL', p_http_method => 'GET'); l_status := apex_web_service.g_status_code; APEX_JSON.parse(l_clob); l_token:=APEX_JSON.get_varchar2(p_path => 'token'); -- prepare or get the json l_req_body := '{name: "Scott", age: 33, city: "Huston"}'; l_request_body := l_newline || '--' || lco_boundary || l_newline || 'Content-Disposition: form-data; name="contact-info"' || l_newline || 'Content-Type: application/json' || l_newline || l_newline || l_req_body; --|| l_newline --|| '--' || lco_boundary || '--'; -- get the blob from the table and zip it FOR l_file IN ( SELECT file_name, my_file_blob FROM my_doc_table WHERE doc_id = '1234' ) LOOP apex_zip.add_file(p_zipped_blob => l_attachment, p_file_name => l_file.file_name, p_content => l_file.my_file_blob); END LOOP; apex_zip.finish(p_zipped_blob => l_attachment); -- concatenate zip file as base64 data to the above json l_request_body := l_request_body || l_newline || '--' || lco_boundary || l_newline || 'Content-Disposition: form-data; name="attachment"' || l_newline || 'Content-Type: application/zip' || l_newline || 'Content-Transfer-Encoding: base64' || l_newline || l_newline || apex_web_service.blob2clobbase64(l_attachment) || l_newline || '--' || lco_boundary || '--'; dbms_output.put_line('Request body>'); dbms_output.put_line(dbms_lob.substr(l_request_body, 4000, 1)); l_request_body_length := dbms_lob.getlength(l_request_body); -- authenticate wallet utl_http.set_wallet( path => 'file:/your/wallet/path', password => 'YourWalletPsw' ); -- start sending the data l_http_request := utl_http.begin_request( url => 'https://yourRESTservicePostURL', method => 'POST', http_version => 'HTTP/1.1' ); -- set header utl_http.set_header(l_http_request, 'Authorization', 'Bearer ' || l_token); utl_http.set_header(l_http_request, 'Content-Type', 'multipart/form-data; boundary="' || lco_boundary || '"'); utl_http.set_header(l_http_request, 'Content-Length', l_request_body_length); utl_http.set_header(l_http_request, 'Transfer-Encoding', 'Chunked'); utl_http.set_header(l_http_request, 'Connection', 'keep-alive'); -- send data in chunks while l_offset < l_request_body_length loop dbms_lob.read(l_request_body, l_amount, l_offset, l_buffer); utl_http.write_text(l_http_request, l_buffer); l_offset := l_offset + l_amount; end loop; -- print the response l_http_response := utl_http.get_response(l_http_request); dbms_output.put_line('Response> Status Code: ' || l_http_response.status_code); dbms_output.put_line('Response> Reason Phrase: ' || l_http_response.reason_phrase); dbms_output.put_line('Response> HTTP Version: ' || l_http_response.http_version); for i in 1 .. utl_http.get_header_count(l_http_response) loop utl_http.get_header(l_http_response, i, l_response_header_name, l_response_header_value); dbms_output.put_line('Response> ' || l_response_header_name || ': ' || l_response_header_value); end loop; utl_http.read_text(l_http_response, l_response_body, 32767); dbms_output.put_line('Response body>'); dbms_output.put_line(l_response_body); if l_http_request.private_hndl is not null then utl_http.end_request(l_http_request); end if; if l_http_response.private_hndl is not null then utl_http.end_response(l_http_response); end if; exception when others then if l_http_request.private_hndl is not null then utl_http.end_request(l_http_request); end if; if l_http_response.private_hndl is not null then utl_http.end_response(l_http_response); end if; raise; end;
Questo codice funziona come un incantesimo. Per favore fatemi sapere nella sezione commenti se avete problemi.