Question

http_req := utl_http.begin_request(t_url,'POST', 

utl_http.http_version_1_1);
utl_http.set_header(http_req, 'Content-Type', t_content_type);
utl_http.set_header(http_req, 'Content-Length', length(soap_request));
utl_http.set_header(http_req, 'SOAPAction', 'http://tempuri.org/IService/GetActive');
utl_http.write_text(http_req, soap_request);http_resp := utl_http.get_response(http_req);
Utl_Http.read_text(http_resp, response_env,32767);dbms_lob.createtemporary(x_clob, false );
bms_lob.OPEN( x_clob, dbms_lob.lob_readwrite );
BEGIN
  loop utl_http.read_text(http_resp, l_buffer); 
    dbms_lob.writeappend(x_clob, length(l_buffer) , l_buffer); 
  end LOOP;
EXCEPTION 
WHEN others THEN
  IF sqlcode <> -29266 then 
     raise;
  ENDIF;
END;
IF(http_resp.status_code = 200) then 
L_RESP_XML:= xmltype(response_env);

L_RESULTCODE:= l_resp_xml.extract('/s:Envelope/s:Body/GetResponse/GetResult/a:ResultHeader/b:ResultCode/text()', 'xmlns="http://tempuri.org/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/ xmlns:a="http://schemas.datacontract.org/2004/07/" xmlns:b="http://schemas.datacontract.org/2004/07/"').getstringval();
L_RESULTDESCRIPTION:= l_resp_xml.extract('/s:Envelope/s:Body/GetResponse/GetResult/a:ResultHeader/b:ResultDescription/text()', 'xmlns="http://tempuri.org/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/ xmlns:a="http://schemas.datacontract.org/2004/07/" xmlns:b="http://schemas.datacontract.org/2004/07/.CRM"').getstringval()

IF (l_resultcode = '0' AND l_resultdescription = 'Successful') then 
    siebel.idc_ir_xml_processing(response_env, err_code , err_mesg);
    IF (err_code <> '00') then 
        error_code := err_code;error_desc := err_mesg;raise error_out;
    ELSE
      error_code := '00T';
      error_desc := l_resultdescription;raise error_out
    ENDIF;
 ENDIF;

utl_http.end_response(http_resp);
error_code := '00';
error_desc := 'SUCCESS';
EXCEPTION
   WHEN error_out THEN 
      error_code := error_code;error_desc := error_desc; ---SQLERRM||' Unhandled Exception';
    WHEN others THEN 
      error_code := '91';error_desc := sqlerrm || ' Unhandled Exception';
    dbms_output.put_line('Error desc:' || error_desc );
END;

当我们进行测试时，我们在上面的多个时间调用过程，它将调用HTTP请求并获得响应。但是当我们触发大部分时间时，我们会低于错误

Error desc:ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1130
ORA-29270: too many open HTTP requests

让我们知道上述过程中的问题是什么，以及如何处理所有请求连接应该关闭。你如何确保我们不会发生这种问题

Answer 1

在发生任何异常时，始终使用utl_http.end_response来关闭打开的连接。

http_req := utl_http.begin_request(t_url,'POST', utl_http.http_version_1_1);
utl_http.set_header(http_req, 'Content-Type', t_content_type);
utl_http.set_header(http_req, 'Content-Length', length(soap_request));
utl_http.set_header(http_req, 'SOAPAction', 'http://tempuri.org/IService/GetActive');
utl_http.write_text(http_req, soap_request);
http_resp := utl_http.get_response(http_req);
Utl_Http.read_text(http_resp, response_env,32767);
dbms_lob.createtemporary(x_clob, false );
bms_lob.OPEN( x_clob, dbms_lob.lob_readwrite );
BEGIN
  loop utl_http.read_text(http_resp, l_buffer); 
    dbms_lob.writeappend(x_clob, length(l_buffer) , l_buffer); 
  end LOOP;
EXCEPTION 
WHEN others THEN
  IF sqlcode <> -29266 then 
     raise;
  ENDIF;
END;
IF(http_resp.status_code = 200) then 
L_RESP_XML:= xmltype(response_env);

L_RESULTCODE:= l_resp_xml.extract('/s:Envelope/s:Body/GetResponse/GetResult/a:ResultHeader/b:ResultCode/text()', 'xmlns="http://tempuri.org/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/ xmlns:a="http://schemas.datacontract.org/2004/07/" xmlns:b="http://schemas.datacontract.org/2004/07/"').getstringval();
L_RESULTDESCRIPTION:= l_resp_xml.extract('/s:Envelope/s:Body/GetResponse/GetResult/a:ResultHeader/b:ResultDescription/text()', 'xmlns="http://tempuri.org/" xmlns:s="http://schemas.xmlsoap.org/soap/envelope/ xmlns:a="http://schemas.datacontract.org/2004/07/" xmlns:b="http://schemas.datacontract.org/2004/07/.CRM"').getstringval()

IF (l_resultcode = '0' AND l_resultdescription = 'Successful') then 
    siebel.idc_ir_xml_processing(response_env, err_code , err_mesg);
    IF (err_code <> '00') then 
        error_code := err_code;error_desc := err_mesg;raise error_out;
    ELSE
      error_code := '00T';
      error_desc := l_resultdescription;raise error_out
    ENDIF;
 ENDIF;

utl_http.end_response(http_resp);
error_code := '00';
error_desc := 'SUCCESS';
EXCEPTION
   WHEN error_out THEN
      utl_http.end_response(http_resp); 
      error_code := error_code;error_desc := error_desc; ---SQLERRM||' Unhandled Exception';
    WHEN others THEN 
      utl_http.end_response(http_resp); 
      error_code := '91';error_desc := sqlerrm || ' Unhandled Exception';
     dbms_output.put_line('Error desc:' || error_desc );

END;

ORA-29273：HTTP请求失败，ORA-29270：打开的HTTP请求太多

1 个答案: