使用UTL_HTTP进行文件上传和下载需要以下步骤:
- 导入UTL_HTTP包:
DECLARE req UTL_HTTP.req; resp UTL_HTTP.resp; BEGIN NULL; END;
- 创建HTTP请求:
req := UTL_HTTP.begin_request('http://example.com/upload_file', 'POST', 'HTTP/1.1'); UTL_HTTP.set_header(req, 'Content-Type', 'multipart/form-data');
- 添加文件数据到请求:
UTL_HTTP.set_body_charset(req, 'UTF-8'); UTL_HTTP.set_multipart_boundary(req, 'boundary'); UTL_HTTP.write_text(req, '--boundary'); UTL_HTTP.write_text(req, 'Content-Disposition: form-data; name="file"; filename="file.txt"'); UTL_HTTP.write_text(req, 'Content-Type: text/plain'); UTL_HTTP.write_text(req, 'Content-Transfer-Encoding: binary'); UTL_HTTP.write_text(req, ''); UTL_HTTP.write_text(req, 'file content'); UTL_HTTP.write_text(req, '--boundary--');
- 发送请求并获取响应:
resp := UTL_HTTP.get_response(req);
- 处理响应:
IF resp.status_code = 200 THEN UTL_HTTP.read_text(resp, 'response.txt'); END IF;
通过以上步骤,您可以使用UTL_HTTP进行文件上传和下载操作。请注意,您需要有相应的权限来执行这些操作,并且需要确保网络连接正常。