spring boot 缓存之@CacheConfig公共抽取配置

一个个定义缓存组件名称

package com.laoxu.cache.service.impl;

import com.laoxu.cache.bean.Employee;
import com.laoxu.cache.mapper.EmployeeMapper;
import com.laoxu.cache.service.EmployeeService;
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.cache.annotation.Caching;
import org.springframework.stereotype.Service;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    @Override
    @Cacheable(cacheNames = "emp")
    public Employee getEmployee(Integer id) {
        System.out.println("查询" + id + "号员工");
        return employeeMapper.getEmployee(id);
    }

    @Override
    @CachePut(cacheNames = "emp", key = "#result.id")
    public Employee updateEmployee(Employee employee) {
        System.out.println("更新" + employee);
        employeeMapper.updateEmployee(employee);
        return employee;
    }

    @Override
    @CacheEvict(cacheNames = "emp", key = "#id")
    public void deleteEmployee(Integer id) {
        System.out.println("删除" + id);
    }

    @Override
    @CacheEvict(cacheNames = "emp", allEntries = true)
    public void deleteAllEmployee() {
        System.out.println("删除所有");
    }

    @Override
    @CacheEvict(cacheNames = "emp", beforeInvocation = true)
    public void deleteEmployeeById(Integer id) {
        System.out.println("删除" + id);
    }


    @Override
    @Caching(
            cacheable = {
                    @Cacheable(value = "emp", key = "#lastName")
            },
            put = {
                    @CachePut(value = "emp", key = "#result.id"),
                    @CachePut(value = "emp", key = "#result.email")
            }
    )
    public Employee getEmployeeByLastName(String lastName) {
        return employeeMapper.getEmployeeByLastName(lastName);
    }
}

公共定义缓存组件名称

package com.laoxu.cache.service.impl;

import com.laoxu.cache.bean.Employee;
import com.laoxu.cache.mapper.EmployeeMapper;
import com.laoxu.cache.service.EmployeeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.*;
import org.springframework.stereotype.Service;

@CacheConfig(cacheNames = "emp")
@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    @Override
    @Cacheable()
    public Employee getEmployee(Integer id) {
        System.out.println("查询" + id + "号员工");
        return employeeMapper.getEmployee(id);
    }

    @Override
    @CachePut(key = "#result.id")
    public Employee updateEmployee(Employee employee) {
        System.out.println("更新" + employee);
        employeeMapper.updateEmployee(employee);
        return employee;
    }

    @Override
    @CacheEvict(key = "#id")
    public void deleteEmployee(Integer id) {
        System.out.println("删除" + id);
    }

    @Override
    @CacheEvict(allEntries = true)
    public void deleteAllEmployee() {
        System.out.println("删除所有");
    }

    @Override
    @CacheEvict(beforeInvocation = true)
    public void deleteEmployeeById(Integer id) {
        System.out.println("删除" + id);
    }


    @Override
    @Caching(
            cacheable = {
                    @Cacheable(key = "#lastName")
            },
            put = {
                    @CachePut(key = "#result.id"),
                    @CachePut(key = "#result.email")
            }
    )
    public Employee getEmployeeByLastName(String lastName) {
        return employeeMapper.getEmployeeByLastName(lastName);
    }
}

两者等价。