Method do_json

lib_acl_cpp/samples/http_response/main.cpp:144–182

���� text/json ����

	// ���� text/json ����
	bool do_json(http_response& res, const char* req_charset, string& err) {
		json body;
		if (res.get_body(body, local_charset_) == false) {
			err += "get_body error";
			return false;
		}

		json_node* node = body.first_node();
		while (node) {
			if (node->tag_name()) {
				printf("tag: %s", node->tag_name());
				if (node->get_text()) {
					printf(", value: %s\r\n", node->get_text());
				} else {
					printf("\r\n");
				}
			}
			node = body.next_node();
		}

		// ������Ӧͷ�ֶ�
		http_header& header = res.response_header();
		string ctype("text/json");
		if (req_charset) {
			ctype << "; charset=" << req_charset;
			header.set_content_type(ctype);
		} else {
			header.set_content_type(ctype);
		}

		printf(">>ctype: %s\r\n", ctype.c_str());

		// ������Ӧ�����ݣ���������Ӧ������
		string buf;
		body.build_json(buf);

		// ������Ӧ������
		return response_body(res, buf, req_charset);
	}

	bool response_body(http_response& res, const string& body,
		const char* req_charset) {