java spring microservices

and implementation of interface Autowirecapablebeanfactory Configurablelistablebeanfactory:beanfactory configuration checklist, specifying the green type and interface Defaultlistablebeanfactory: Combines all of the above functional groups to be processed after the bean is registered 2.XmlBeanDefinitionReader From this diagram we can see how this class is packaged in a step-by-step way.

class:Package Cn.outofmemory.helloannotation;import Org.springframework.context.applicationcontext;import Org.springframework.context.annotation.annotationconfigapplicationcontext;import Org.springframework.context.support.classpathxmlapplicationcontext;public class App {public static void main ( String[] args) { //applicationcontext appContext = new Annotationconfigapplicationcontext (" Cn.outofmemory.helloannotation "); Note: Spring fetch

principle-chain call notification method. avi36. Declarative transaction-Environment construction. avi38. [Source code]-Declarative transaction-source code analysis. avi40. Extension principle-beandefinitionregistrypostprocessor.avi42.-applicationlistener principle of extension principle. avi44, [Source]-spring container Creation-beanfactory pre-preparation. avi46, [Source]-spring container Creation-regist

Build a multi-modular spring MVC + Spring boot project using MAVEN, completely based on Java Config First, create a new MAVEN project, the template uses QuickStart, the project name multiboot pom.xml configuration: This adds dependency management for all of the sub modules and changes the package mode to POM Second, in Eclipse, remove everything except pom.xm

Talking about security, such as now on the market some OAuth2 \ Oidc-openid Connect, identity authentication, authorization, and so on, the following first Java SecurityThis piece of stuff is a lot more complicated than spring Security or. Netcore Security, 1.1-point comparison noteSpring SecurityPart:Securitycontextholder provides several ways to access the SecurityContext. SecurityContext, save authentica

If you find garbled characters in the content returned by spring's @responsbody, you need to solve them in the following ways. 1. Ensure that spring character Encoding Filter is configured in Web.xml: XML Code 2. If the return value type under the @responsebody annotation method is String, the Class for the output of the content. Why would there be garbled? Workaround 1: View the source code of the Stringhttpmessageconverter, the default enco

;Try{Connection con = Template.getdatasource (). getconnection (); PS = Con.preparestatement ("SELECT Name, price from items where name =?"); Ps.setstring (1, name); rs = Ps.executequery ();if(Rs.next ()) {return NewItem (Rs.getstring (1), Rs.getbigdecimal (2)); }return NULL; }Catch(SQLException e) {Throw NewIOException (e); }finally{if(rs! =NULL) {Try{Rs.close (); }Catch(SQLException e) {Logger.warn (E.getmessage (), E); } }if(PS! =NULL) {Try{Ps.close (); }Catch(SQLException e) {Lo

Spring integrates log4j in Java Web Engineering You may see this article in [Spring] Spring3.0.5 download, configuration, and Helloworld (click to open the link. If Spring does not integrate log4j directly, the following warning is displayed about Spring integrated log4j. Th

= "Org.springframework.scheduling.quartz.SchedulerFactoryBean"> Propertyname= "Triggers"> List> refBean= "Crontrigger" /> List> Property> Bean> Scheduled Tasks end -Pom.xml Add quartz jar package in maven (note that spring does not support Quartz version 2.0 or more)Properties> quartz.version>1.8.5quartz.version> Properties> Dependencies> Dependency> groupId>Org.

Java Spring boot uses spring reflection and bootspring Spring reflection 1. You can instantiate this class by class name. ApplicationContext. getBean (name)2. Get classes by type applicationContext.getBeansOfType(clazz); First, you must obtain the spring container. The Appli

Analysis of the problem that the java timer cannot be automatically injected (the original Spring timer can be injected into the service in this way), the timer spring In recent days, we have been working on a project and need to use spring timing tasks in the project. However, when operating on the database, we find t

1. Listener with spring container when service is started (method to inherit Contextloaderlistener listener) Public classListenerspringcontextextendsContextloaderlistener {Private FinalLogger log = Loggerfactory.getlogger (listenerspringcontext.class); Public voidcontextinitialized (Servletcontextevent event) {Log.info ("Init listenerspringcontext ..."); Super. contextinitialized (event); ApplicationContext ApplicationContext=Webapplicationcontextuti

Configure static resources under the Spring MVC framework:1. Create a static resource folder, such as Main.css in2. In the dispatcherservlet corresponding beans configuration file, add the MVC namespace and the following configurationXmlns:mvc= "Http://www.springframework.org/schema/mvc"location= "/resources/" mapping= "/static/**"/>Location is the resource folder, and mapping is the path to the Web request. That is, Web requests under the/static hie

Recently encountered in the project when the Pring transaction does not work, and later resolved, here I summarize:1, first use the following code to confirm that your bean is the proxy object?A transaction must be a bean that is defined by the spring (either through XML or annotation definitions).Adding transactions directly to new objects is not working.You can determine whether a proxy object is in the following ways:Aoputils.isaopproxy (Object obj

Spring is an open source, lightweight, one-stop framework.Spring Core two main parts AOP: Aspect-oriented programming, extended functionality is not a modification of source code implementation IOC: Control inversion, such as a class, there is a method in the class (not a static method), want to invoke the method inside the class, the general method is to create the object (new one), through the new object called method. When using the

The Spring framework is now almost a standard framework for Java WEB development. So, as a Java programmer, how much do you know about Spring's main technical points? You may want to use the questions in this article to check.1. General questions1.1. What are the main features of different versions of the Spring Framew

1. General Questions1.1. What are the main features of different versions of the Spring Framework ? Version Feature Spring 2.5 was released on 2007. This is the first version that supports annotations. Spring 3.0 was released on 2009. It takes full advantage of the improvements in JAVA5 and provides support for JEE6.

Jar package used: Ojdbc14.jar spring-2.5.jar commons-dbcp-1.4.jar Directory structure RESS (source folder)-> conff (Package) contains app. xml and SYS. Properties SYS. properties: jdbc.driverClassName=oracle.jdbc.driver.OracleDriverjdbc.url=jdbc:oracle:thin:@localhost:1521:orcljdbc.username=scottjdbc.password=tiger App. xml: Oratest. Java Package oracletest; import Ja