Problem in Tomcat

Tomcat4.1 is very different from Tomcat5.0, running under 4.1, and some 5.0 cannot be run. (1) <% incduDE%> The Chinese included in the InLuCDE file will be displayed in 5.0, 4.1 can be displayed normally. 5.0 can be replaced by . (2) Under 5.0, if Bean has no default initialization (no input parameters), the JSP file cannot be compiled normally. There is no such problem under 4.1.

Recently found issues

(1) When Form is submitted, the GET method is correct, and the post method invalid will appear 500 internal server errors. There is no problem in XP, and this problem will appear under 2003. I don't know whether it is a Tomcat issue, or the server itself sets the problem.

(2) Tomcat6 itself does not have common-logging.jar, using Ehcache, there is a problem, so it should be placed in the lib directory. Tomcat5.5 does not have this problem, there will be a common-logging.jar package after installation.

(3) Tomcat6 and Tomcat5 cannot be installed on a system at the same time, and the installation will be wrong (using the Windows Installer installation, using the ZIP mode).

(4) Coding suggestions The same use UTF-8, there is a lot of problems