Spring Boot Cache Combat EhCache

Spring boot uses simplecacheconfiguration by default, that is, using Concurrentmapcachemanager to implement caching. But it's easy to switch to another cache implementation. Pom File

Introducing the appropriate jar package in the POM

<dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactid >spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId> Org.springframework.boot</groupid> <artifactId>spring-boot-starter-data-jpa</artifactId> </ dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java< /artifactid> </dependency> <dependency> <groupId>org.apache.commons</groupId> <artif actid>commons-dbcp2</artifactid> </dependency> <dependency> <groupId> Org.springframework.boot</groupid> <artifactId>spring-boot-starter-cache</artifactId> </ dependency> <dependency> <groupId>net.sf.ehcache</groupId> <artifactid>ehcache</ Artifactid> </dependency> </dependencies>

configuration file

The configuration files required by Ehcache are simply placed under the classpath and Spring boot is automatically scanned.

<?xml version= "1.0" encoding= "UTF-8"?>
<ehcache> <cache name= "People" maxelementsinmemory= "
    1000 "/>
</ehcache>

You can also specify the location of the Ehcache configuration file by configuring it in the Application.properties file, such as:

spring.cache.ehcache.config= #  Ehcache configuration file Address

Spring boot automatically configures the Ehcachecachemannager bean for us. Key Service

Package Com.xiaolyuh.service.impl;
Import Com.xiaolyuh.entity.Person;
Import Com.xiaolyuh.repository.PersonRepository;
Import Com.xiaolyuh.service.PersonService;
Import org.springframework.beans.factory.annotation.Autowired;
Import org.springframework.cache.annotation.CacheEvict;
Import Org.springframework.cache.annotation.CachePut;
Import org.springframework.cache.annotation.Cacheable;

Import Org.springframework.stereotype.Service;

    @Service public class Personserviceimpl implements Personservice {@Autowired personrepository personrepository;  @Override @CachePut (value = "people", key = "#person. ID") Public person Save (person person) {person P
        = Personrepository.save (person);
        SYSTEM.OUT.PRINTLN ("For ID, key is:" + p.getid () + "data cache");
    return p; @Override @CacheEvict (value = "people")//2 public void remove (Long ID) {System.out.println ("Delete ID,
        Key is "+ ID +" "data cache"); This does not do the actual delete operation} @Override @CacheAble (value = "people", key = "#person. ID")//3 public person findone (person person) {Person P = Personreposito
        Ry.findone (Person.getid ());
        SYSTEM.OUT.PRINTLN ("For ID, key is:" + p.getid () + "data cache");
    return p; }
}

Controller

Package Com.xiaolyuh.controller;
Import Com.xiaolyuh.entity.Person;
Import Com.xiaolyuh.service.PersonService;
Import org.springframework.beans.factory.annotation.Autowired;
Import Org.springframework.cache.CacheManager;
Import Org.springframework.web.bind.annotation.RequestBody;
Import org.springframework.web.bind.annotation.RequestMapping;

Import Org.springframework.web.bind.annotation.RestController;

    @RestController public class Cachecontroller {@Autowired personservice personservice;

    @Autowired CacheManager CacheManager;
        @RequestMapping ("/put") public long put (@RequestBody person person) {Person P = personservice.save (person);
    return P.getid (); @RequestMapping ("/able") public person cacheable {System.out.println (cachemanager.tostr
        ing ());
    return Personservice.findone (person);
        @RequestMapping ("/evit") public String Evit (Long id) {personservice.remove (ID); RetUrn "OK"; }

}

Start class

@SpringBootApplication
@EnableCaching//Open cache, need to display the specified public
class Springbootstudentcacheapplication {

	public static void Main (string[] args) {
		springapplication.run (springbootstudentcacheapplication.class, args);
}

Test Class

Package com.xiaolyuh;
Import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
Import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;

Import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
Import Java.util.HashMap;

Import Java.util.Map;
Import Org.junit.Before;
Import Org.junit.Test;
Import Org.junit.runner.RunWith;
Import org.springframework.beans.factory.annotation.Autowired;
Import Org.springframework.boot.test.context.SpringBootTest;
Import Org.springframework.http.MediaType;
Import Org.springframework.test.context.junit4.SpringRunner;
Import ORG.SPRINGFRAMEWORK.TEST.WEB.SERVLET.MOCKMVC;
Import Org.springframework.test.web.servlet.MvcResult;
Import Org.springframework.test.web.servlet.setup.MockMvcBuilders;

Import Org.springframework.web.context.WebApplicationContext;

Import Net.minidev.json.JSONObject; @RunWith (Springrunner.class) @SpringBootTest public class SPRINGBOOTSTUDENTCACheapplicationtests {@Test public void Contextloads () {} private MOCKMVC MOCKMVC;//Simulate an MVC object, through MOCKMVCB

    Uilders.webappcontextsetup (THIS.WAC). Build () initialized. @Autowired private Webapplicationcontext WAC;    Inject Webapplicationcontext//@Autowired//Private mockhttpsession session;//inject simulated HTTP session//// @Autowired//Private mockhttpservletrequest request;//inject the simulated HTTP request\ @Before//Initialize the work pub before the test starts
    LIC void Setup () {This.mockmvc = Mockmvcbuilders.webappcontextsetup (THIS.WAC). build (); @Test public void testable () throws Exception {for (int i = 0; i < 2; i++) {Mvcresult result = Mockmvc.perform (post ("/able"). PARAM ("id", "2")). Andexpect (Status (). IsOk ())//simulate sending GE to Testrest
                    T request. Andexpect (Content (). ContentType (Mediatype.application_json_utf8))//Expected return value of the media type Text/plain; Charset=utf-8. Andreturn ();/Returns the results of the execution request System.out.println (Result.getresponse (). getcontentasstring ()); }
    }

}

Print Log

From the above you can see that the first walk is the database, the second walk is the cache

Source: https://github.com/wyh-spring-ecosystem-student/spring-boot-student/tree/releases

Spring-boot-student-cache-ehcache Engineering