Oracle 通过UTL_HTTP发送http请求

HTTP_GET：

CREATE OR REPLACE FUNCTION FN_HTTP_GET (v_url  VARCHAR2)
RETURN VARCHAR2
AS
BEGIN
  DECLARE
  req UTL_HTTP.REQ;
  resp UTL_HTTP.RESP;
  v_line VARCHAR2 ( 4000 );
  v_text VARCHAR2 ( 4000 );
  BEGIN
    v_text := '';
    BEGIN
      req := UTL_HTTP.BEGIN_REQUEST ( url => v_url, method => 'GET' );
      UTL_HTTP.SET_BODY_CHARSET('UTF-8');
      UTL_HTTP.SET_HEADER(req, 'Content-Type', 'application/x-www-form-urlencoded');
      resp := UTL_HTTP.GET_RESPONSE ( req );
      LOOP
      UTL_HTTP.READ_LINE ( resp, v_line, TRUE );
      v_text := v_text || v_line;
      END LOOP;
      UTL_HTTP.END_RESPONSE( resp );
      UTL_HTTP.END_REQUEST( req );
      EXCEPTION
        WHEN UTL_HTTP.END_OF_BODY THEN
        UTL_HTTP.END_RESPONSE ( resp );
        WHEN OTHERS THEN
        UTL_HTTP.END_RESPONSE(resp);
        UTL_HTTP.END_REQUEST(req);
    END;
    return v_text;
  END;
END;