What are the knowledge points of Spring source code

This article mainly introduces "what are the knowledge points of Spring source code". In the daily operation, I believe that many people have doubts about the knowledge points of Spring source code. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubts of "what are the knowledge points of Spring source code?" Next, please follow the editor to study!

1.Spring introduction

Spring is to solve the complexity of enterprise application development. It provides a comprehensive basic framework for Java developers to pay more attention to their own business implementation. The non-intrusive implementation of JavaBean makes it simple, testable and loosely coupled, so that any Java application can benefit from Spring.

The overall framework of 2.Spring is as follows

The following brain map shows the core functions of the overall framework:

3. First experience the use of Spring container

a. Introducing maven dependencies of spring

Org.springframework spring-context 3.2.1.RELEASE runtime

b. Create a test entity Bean

Public class MyTestBean {private String testStr = "testStr"; public String getTestStr () {return testStr;} public void setTestStr (String testStr) {this.testStr = testStr;}}

c. Use the xml file in the spring container to create a bean

d. Test the entity Bean

@ SuppressWarnings ("deprecation") public class BeanFactoryTest {@ Test public void testSimpleLoad () {BeanFactory bf = new XmlBeanFactory (new ClassPathResource ("spring.xml")); MyTestBean myTestBean = (MyTestBean) bf.getBean ("myTestBean"); Assert.assertEquals ("testStr", myTestBean.getTestStr ());}}

4. Briefly combing the Spring workflow

Load the xml file corresponding to the declaration spring bean-> convert xml to Document objects-> instantiate the class objects contained in Document through reflection and successfully load them into the spring container

At this point, the study of "what are the knowledge points of Spring source code" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!