SpringBoot整合EhCache的步骤详解

<&＃63;xml version="1.0" encoding="UTF-8"&＃63;>

 4.0.0
 com.yiidian
 ch03_10_springboot_ehcache
 1.0-SNAPSHOT
 
 
 
  org.springframework.boot
  spring-boot-starter-parent
  2.1.11.RELEASE
 
 
  
  
   org.springframework.boot
   spring-boot-starter-web
  
  
  
   org.springframework.boot
   spring-boot-starter-test
   2.1.6.RELEASE
   test
  
  
  
  
   org.springframework.boot
   spring-boot-starter-cache
   2.1.11.RELEASE
  
  
  
   net.sf.ehcache
   ehcache
   2.10.6
  

 

#配置EhCache的配置
spring:
 cache:
 ehcache:
  config: ehcache.xml # 读取ehcache.xml配置

package com.yiidian;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletListenerRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
/**
 * Spring Boot引导类
 * 一点教程网 - www.yiidian.com
 */
@SpringBootApplication
@EnableCaching // 开启缓存
public class MyBootApplication {
 public static void main(String[] args) {
  SpringApplication.run(MyBootApplication.class,args);
 }
}

package com.yiidian.service;
import com.yiidian.domain.Customer;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.stereotype.Service;
/**
 * 业务层
 *一点教程网 - www.yiidian.com
 */
@Service
public class CustomerService {
  @Cacheable(value = "customer",key = "#id")
  public Customer findById(Integer id){
    System.out.println("执行了UserService获取User");
    Customer customer = new Customer();
    customer.setId(1);
    customer.setName("小明");
    customer.setGender("男");
    customer.setTelephone("13244445555");
    return customer;
  }
}

package com.yiidian.test;

import com.yiidian.MyBootApplication;
import com.yiidian.service.CustomerService;
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.test.context.junit4.SpringJUnit4ClassRunner;

/**
 * SpringBoot整合EhCache
 * 一点教程网 - www.yiidian.com
 */
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = MyBootApplication.class)
public class EhCacheDemo {
  @Autowired
  private CustomerService customerService;

  @Test
  public void test1(){
    //查询第一次
    System.out.println(customerService.findById(1));
    //查询第二次
    System.out.println(customerService.findById(1));
  }
}

@Cacheable(value = "customer" ,key = "targetClass + methodName +#p0")
public List queryAll(Customer cust) {
  return customerDao.findAllByUid(cust);
}

@CacheConfig(cacheNames = {"myCache"})
public class UserServiceImpl implements UserService {
  @Override
  @Cacheable(key = "targetClass + methodName +#p0")//此处没写value
  public List findUsers(int num) {
    return userDao.findUsers(num);
  }
  .....
}

@CachePut(value = "customer", key = "targetClass + #p0")
public Customer updata(Customer cust) {
  Customer customer = customerDao.findAllById(cust.getId());
  customer.updata(cust);
  return customer ;
}

@Cacheable(value = "customer", key = "targetClass +#p0")//清空缓存
public Customer save(Customer cust) {
  customerDao.save(cust);
  return cust;
}

@Cacheable(value = "customer",key = "#p0.id")
public Customer save(Customer cust) {
  customerDao.save(cust);
  return job;
}

//清除一条缓存，key为要清空的数据
@CacheEvict(value="customer",key="#id")
public void delect(int id) {
  customerDao.deleteAllById(id);
}

//方法调用后清空所有缓存
@CacheEvict(value="customerCache",allEntries=true)
public void delectAll() {
  customerDao.deleteAll();
}

//方法调用前清空所有缓存
@CacheEvict(value="customerCache",beforeInvocation=true)
public void delectAll() {
  customerDao.deleteAll();
}