Textbooks that cover most of the course content:

• D. Ince: Developing Distributed and E-commerce Applications. Addison-Wesley. ISBN 0-201-73046-4. 2002
  covers a variety of e-Commerce topics from a technical perspective
• H. Chen, R. Lee, T. Dillon, E. Chang: E-Commerce - Fundamentals and Applications. John Wiley & Sons. ISBN 0-471-49303-1. 2001
  Extensive Java material

Books that I used for this course are:

• G.W. Treese and L.C. Stewart: Designing Systems for Internet Commerce, 0-201-57167-6, Addison-Wesley, 1998.
  Most of the business elements are based on this book
• A.S. Tanenbaum: Computer Networks (4th Edition), Prentice Hall.
  
• D. Gollmann: Computer Security, 0-471-97844-2, Wiley & Sons, 1999.
  

Other programming textbooks:

• Deitel, Deitel, Nieto : e-Business & e-Commerce - how to program, Prentice Hall, ISBN 0-13-028419-X, 2001

I have used the following two books for the Java-part:

• Y.D. Liang: An Introduction To Java Programming,QUE E&T Series, Macmillan Computer Publishing, ISBN: 1-57576-548-9
  this is the book you have used in the first semester
• M. Campione, K. Walrath: The Java Tutorial, Addison-Wesley, The Java Series, 1996, ISBN 0-201-6345406
  There is an online version of the book (better parts of it).