spring boot kafka

hard code, if the switch cache client also need to modify the code, high coupling, not easy to maintain Public string Get (String key) { = Usermapper.selectbyid (key); if NULL ) { cache.put (key,value); } return value;}After use:Based on spring cache annotations, the cache is configured by the developer itself, but does not involve a specific encoding@Cacheable (value = "User", key = "#key") public String get (string key) {

Note Development for spring boot under Restful styleThe restful style often used by e-commerce websites is just a development idea, not a development framework, and today's technology does not fully implement restful styles. RESTful style is an architectural concept that perfectly interprets the HTTP protocol restful way requires a restful style of front controller to be configured with /to identify the url

In my last blog, I chose http://start.spring.io/to create a project Next, use IntelliJ idea 2017.2.5 x64 to create the Spring Boot/cloud project The newly installed IntelliJ idea 2017.2.5 x64 has no spring initializr this plugin; Next, install the spring INITIALIZR plug-in; In the settings-> Plugins search

Public voidenvironmentprepared (configurableenvironment environment) {Object O= Environment.getsystemproperties ().Get("Os.name"); System. out. println ("springapplicationrunlistener...environmentprepared ."+o); } @Override Public voidcontextprepared (Configurableapplicationcontext context) {System. out. println ("springapplicationrunlistener...contextprepared ..."); } @Override Public voidcontextloaded (Configurableapplicationcontext context) {System. out. println ("springapplicationrunlistene

Spring boot starts on the first day, see the example of @restcontroller ....The same point: both are used to indicate whether a class in spring can receive HTTP requestsDifferent points: @Controller identify a spring class that is a spring MVC controller processor@RestContro

Objective: Two years ago did Spring+activemq+stomp WS Push, that is easy to do, but now the company uses MQ middleware is RABBITMQ, so need to do WS communication through RABBITMQ. Search carefully search Baidu/Google, online through the spring Boot+rabbitmq+stomp Tutorial article is a lot of, unfortunately, the current project is not

Set spring-boot logging and spring-bootlogging By default, spring-boot uses logback to record logger and spring-boot packages.org.springframework.boot.logging.logbackThere are some con

Source Address: Https://github.com/roncoo/spring-boot-demo1. Tools:Eclipse:http://www.eclipse.org/downloads/packages/eclipse-ide-java-ee-developers/neonrSpring Tool Suite:https://spring.io/tools/sts/all2. Use the version as:Eclipse:eclipse-jee-neon-r-win32-x86_64.zipSpring Tool Suite:springsource-tool-suite-3.8.0.release-e4.5.2-updatesite.zip3. Installation steps:3.1 Unzip eclipse, open Help---> Install New

();Usefunctionservice.setfunctionservice (Functionservice ());return Usefunctionservice;}}5. OperationThe main code is as follows:/***Run the Portal */public class Main { public static void main (string[] args) { Annotationconfigapplicationcontext context = new Annotationconfigapplicationcontext (Javaconfig. Class) Usefunctionservice Usefunctionservice = Context.getbean (Usefunctionservice. Class) System. out.println (Usefunctionservice.sayhello ( "java config")) ; Context.close ()

Spring boot Spring Cache implementation of multi-level cache, just according to their own ideas to achieve, if the reader has a better solution to the idea, welcome guidance The spring cache implements multilevel caching in the following ways: Add custom CacheManager, custom cache, implement multi-level cache operation

Preparatory workFirst, build a simple Web project that you can use to add security controls later, or use the Chapter3-1-2 as a foundation project. If you are building a web app using spring boot, you can first read the article "Spring Boot Development web App".Web tier Implementation Request mapping@Controllerpublic c

The first type:Need to add @EnableAutoConfiguration to the main class headerThe second type:Is the pom file added?If Tomcat is added to the above dependency, it needs to be commented out, otherwise it cannot be started by the Mian method.Resolve Spring-boot Boot Exception Unable to start embeddedwebapplicationcontext due to missing embeddedservletcontainerfactory

In the version of Spring security3.xHasanyrole This method does not add a prefix to the identity that we need to authenticate role_, in the 3.x version hasrole the source code is as follows Public Final Boolean hasanyrole (String ... roles) { Set getauthorityset (); for (String role:roles) { if (roleset.contains (role)) { return true ; } } return false ; }And the 4.x version w

The Spring-boot version and the Spring-cloud version correspond to one by one, and many errors are due to version inconsistencies. Many Baidu things are too old, the version of an upgrade will be wrong.Spring's jar-pack dependencies are the hardest, but smart people are skillful, thanks to Brother Bo!Official has a dedicated website to configure, the address is:H

disabled Set it to true otherwise the login will be reported There are also implementations of a Userdetailsservice class as follows 1 @Service 2 public class Authuserservice implements userdetailsservice{ 3 4 @Autowired 5 Mstusersmapper Mstusersmapper; 6 7 @Override 8 public userdetails Loaduserbyusername (String username) throws usernamenotfoundexception { 9 users Users =mstusersmapper.selectbyprimarykey (username); The if (users = = null) {One

Preparatory workFirst, build a simple Web project that you can use to add security controls later, or use the Chapter3-1-2 as a foundation project. If you are building a web app using spring boot, you can first read the article "Spring Boot Development web App".Web tier Implementation Request mapping[Java] View plain c

Spring Boot Launcher starter detailed Chszs, not allowed to reprint without the Bo master. Permission to reprint should be marked by the author and blog home: Http://blog.csdn.net/chszsThe Spring Boot app launcher has a total of 44 basic types, specifically as follows:1) Spring