Java EE Learning route map __java

First Stage	Technical name	Technical Content
J2se (Java Base section)	The Prelude to Java development	Computer Fundamentals, A Concise History of Java language development and the development of the environment, experience the development of Java programs, environment variables settings, program execution process, Introduction to related decompile Tools, Java Development tools Eclipse installation and use, Javadoc description.
Java Basic syntax	Java syntax format, constants and variables, scope of variables, methods and methods of overloading, operators, program flow control, arrays and operations array classes, Log-group loop traversal and the common search and sorting algorithm for arrays, and finally use Java program to implement the function.
Object Oriented Programming	Understand the nature of objects, and the relationship between object-oriented, class and object, and how to analyze and solve the problem of displaying life with object-oriented thinking, and Java program to write out the means. How to design classes, design the basic principles of classes, the instantiation process of classes, class elements: constructors, this keyword, method and method of parameter passing process, Static keyword, inner class, Java garbage object recycling mechanism. The three characteristics of an object: encapsulation, inheritance, and polymorphism. Instantiation of subclass objects, overrides and overloads of methods, final keywords, abstract classes, interfaces, Advantages and disadvantages of inheritance. Object polymorphism: Transitions between subclasses and parent classes, references to Parent-class paper box classes, abstract classes, and interfaces in polymorphism Use, polymorphism advantages. Common design patterns such as simple, templates and other modes. What is the principle of catching and throwing exception captures in exception-catching is finally used, package application of the Import keyword.
Multithreading applications	The concept of multithreading, how to create multithreading in the program (thread, Runnable), thread safety issues, thread synchronization, communication between threads, Analysis of the deadlock problem.
Javaapi detailed	Javaapi Introduction, String and StringBuffer, various basic data type wrapper classes, System and runtime classes, date and Datefomat classes, and so on. Common collection classes are used as follows: Java collections Framework:collection, set, List, ArrayList, Vector, LinkedList, HashSet, TreeSet, Map, HashMap, TreeMap, iterator, enumeration and other common collection class APIs.
IO technology	What are io,file and related classes, Word throttling InputStream and outputstream, character streams reader and writer, and corresponding buffer and pipeline flows, byte and character conversion flows, wrapper flows, and common wrapper classes used to analyze Java IO performance.
Network programming	Java Network programming, network communication low-level protocol Tcp/udp/ip,socket programming. Introduction to the common application layer protocols for network communications: HTTP, FTP, and so on, and how the Web server works.
Java Advanced Features	Recursive programs, Advanced Java Features: Reflection, Proxy and generics, enumerations, Java regular Expression API details and its applications.

Second Stage	Technical name	Technical Content
Database technology	Oracle Foundation Management	Oracle background profile, database installation, database username and password, client login database service Sqlplus, Database Basic Overview.
SQL statement	Database creation, table creation, modification, deletion, query, indexing, creation of master-slave tables, data Control authorization and recycling, transaction control, query statements, and operator details, functions in SQL use.
Multiple table joins and subqueries	Equivalent and non-equivalent connections, outer joins, self connections, cross joins, natural connections, using clause connections, full outer joins and left and right outer joins, subquery usage, and considerations.
triggers, stored procedures	Triggers and stored procedures use the occasion, through an example of the detailed.
Database design Optimization	The order of joins in the WHERE clause, select the most efficient table name order, avoid using ' * ' to calculate the number of record bars, and so on in the SELECT clause.
Data backup and Migration	Porting techniques, backup scenarios, import exports, and more.

Phase III	Technical name	Technical Content
JDBC Technology	JDBC Basics	JDBC Connection, Statement, PreparedStatement, CallableStatement, resultset, and other different classes of use.
Connection Pooling Technology	Understand the concept of connection pooling, and master the Establishment, governance, shutdown and configuration of connection pooling.
ORM and DAO Encapsulation	Object-relational mapping idea, JDBC DAO encapsulation, to implement its own JDBC.

Phase fourth	Technical name	Technical content
Web Base Technology (Project Combat)	XML technology	using Jdom and dom4j to parse and build XML documents ,xml  the role and use of the occasion.
Html/css	java master the basic HTML tag format and use, CSS cascading style sheet to the DIV definition, realize the basic implementation of the site layout 。
Javascript	Understanding the basic syntax of Javascript and the use of related functions, and combining HTML pages to implement Process control and page effect exhibition Shown What is the principle of catching and throwing exception captures in exception-catching is finally used, package application  import keyword.