Oracle 通过UTL_HTTP 发送http请求并处理发送内容中包含空格和特殊字符的问题

Oracle中可以通过UTL_HTTP发送http请求，例子如下：

CREATE OR REPLACE PROCEDURE test(v_userid in varchar2,v_content in varchar2 ) IS
req  UTL_HTTP.REQ;
resp UTL_HTTP.RESP;
v_message  varchar2(10000);
xmlstr  varchar2(30000);
begin
begin
req  := UTL_HTTP.BEGIN_REQUEST('http://ip:port/weixin?userid='||v_userid||'&'||'content='||v_content);
utl_http.set_header(req, 'Content-Type', 'text/html; charset=utf-8');
utl_http.write_text(req,xmlstr); --通过body发送消息
xmlstr:=v_content;
utl_http.set_header(req, 'Content-Length',lengthb(xmlstr));
utl_http.write_text(req,xmlstr);
resp := UTL_HTTP.GET_RESPONSE(req);
LOOP
UTL_HTTP.read_line(resp,v_message, TRUE);
dbms_output.put_line(v_message);
END LOOP;

utl_http.end_request(req);
utl_http.end_response(resp);
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;
END test;

调用的时候，如果v_content中包含空格或者其他特殊字符的时候请求就会失败，要想解决这个问题的话，就需要对内容进行编码，我们可以通过url encode来对相应的内容编码，web应用接收到相应的数据做相应的解码即可，修改后的代码如下：

CREATE OR REPLACE PROCEDURE test(v_userid in varchar2,v_content in varchar2 ) IS
req  UTL_HTTP.REQ;
resp UTL_HTTP.RESP;
v_message  varchar2(10000);
xmlstr  varchar2(30000);
begin
begin
req  := UTL_HTTP.BEGIN_REQUEST('http://ip:port/weixin?userid='||v_userid||'&'||'content='||utl_url.escape(v_content,true,'UTF8'));
utl_http.set_header(req, 'Content-Type', 'text/html; charset=utf-8');
utl_http.write_text(req,xmlstr); --通过body发送消息
xmlstr:=utl_url.escape(v_content,true,'UTF8');
utl_http.set_header(req, 'Content-Length',lengthb(xmlstr));
utl_http.write_text(req,xmlstr);
resp := UTL_HTTP.GET_RESPONSE(req);
LOOP
UTL_HTTP.read_line(resp,v_message, TRUE);
dbms_output.put_line(v_message);
END LOOP;

utl_http.end_request(req);
utl_http.end_response(resp);
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;
END test;