Learn the java knowledge required for J2EE-general Linux technology-Linux programming and kernel information. The following is a detailed description. I have sorted out some of my learning experiences on j2ee, and I am about to look for a job. I also want to see what other aspects I have not mastered!
I. Basic java syntax! I am mainly talking about j2ee. j2se also has some frequently used packages to understand!
Ii. jsp, servlet, and j2ee performance Layer applications depend on them! There are also many presentation layer frameworks, such as struts, tapestry, and jsf.
I have read struts for a while and I don't know how to give up later. It seems that I have encountered a strange problem and cannot solve it! I have been learning tapestry all the time, and everyone praises him !! The study is still ongoing...
The unpleasant thing about servlet is that the java class has been modified. You must reload the program or restart the jsp server! Php does not have this problem, nor does django's python framework have this problem! However, this is the relationship between the java language and I can't help it either !!!!
3. jdbc must be used to manipulate databases in java! What is more advanced than jdbc is the O/R ing and there are also many frameworks! Hibernate and apache websites also have one! I am studying hibernate, because I can find books in the library!
4. dom in xml. You should also learn about the java processing method of sax.
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