Secretary Java interview a summary of a Han

- grieved wrote, hope in the future to pay more of their own efforts! Knock the code, look at the source code, and more understanding of the principles of knowledge

frame

• The difference between the Struts and Struts2
• Hibernate is how the implementation of
• Servlet execution
• Springmvc execution
• What things have used Spring

Java foundation

• What are the categories below Java.Lang
• What are the Object class method
• HashCode know how much
• equal()
• Displacement
• How to get session
• Basic data types, String

MySQl

• MySQL FOR UPDATE Lock level
  https://blog.csdn.net/proc_871113/article/details/87359932 (this is more telling )
• MySQL ACID
• Group summary statement

Data Structures and Algorithms

Binary tree, recursion is the key

front end

• application, pageContext, session, request scoped size
• jQuery selector level
  ancestor descendant match all descendant elements according ancestor
  parent> child matches all sub-elements according to the parent element
  prev + next match with all the neighbors prev elements behind
  all siblings after the match prev prev ~ siblings element
• Form jQuery selector
  : input, text,: password, : radio,: checkbox,: submit,: image,: reset,: button,: file
• In short various selectors to know!