背景
实际上，是集成缓存。基本上是傻瓜式操作。
以前，还要封装为一个jar包，还需要高级工程师才能封装这些基础架构的东西。现在不用了，完全傻瓜配置。因为性能的问题，springboot已经帮你解决了。
步骤
1.添加service类
2.开启缓存
3.使用
4.配置ip
添加service类
实现set get方法
package com.wz.bpm.cache;
import javax.annotation.Resource;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.stereotype.Service;
/**
* 缓存服务
* @author gongzhihao
*
*/
@Service
public class RedisService {
@Resource
private RedisTemplate<String,Object> redisTemplate;
public void set(String key, Object value) {
//更改在redis里面查看key编码问题
RedisSerializer redisSerializer =new StringRedisSerializer();
redisTemplate.setKeySerializer(redisSerializer);
ValueOperations<String,Object> vo = redisTemplate.opsForValue();
vo.set(key, value);
}
public Object get(String key) {
ValueOperations<String,Object> vo = redisTemplate.opsForValue();
return vo.get(key);
}
}
开启缓存
添加注解。在启动类添加注解即可。
package com.wz.bpm;
import org.mybatis.spring.annotation.MapperScan;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
@SpringBootApplication
@MapperScan("com.wz.bpm.mapper")
@EnableCaching //添加注解，启用缓存
public class BpmMainApplication {
private static Logger logger = LoggerFactory.getLogger(BpmMainApplication.class);
public static void main(String[] args) {
logger.info("服务器启动。。。");
SpringApplication.run(BpmMainApplication.class, args);
}
}
使用
set
get
1.注入数据
2.调用方法
package com.wz.bpm.controller;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import com.wz.bpm.bean.Customer;
import com.wz.bpm.bean.RespBean;
import com.wz.bpm.cache.RedisService;
import com.wz.bpm.service.CustomerService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import redis.clients.jedis.Jedis;
@Api(tags = "客户")
@RestController
@RequestMapping("/customer")
public class CustomerController {
@Autowired
CustomerService customerService;
@Autowired
private RedisService redisService;
@ApiOperation("插入单个数据")
@RequestMapping(method = RequestMethod.POST)
public RespBean insert(Customer record) {
int i = customerService.insert(record);
return RespBean.printResult(i);
}
@ApiOperation("获取分页")
@RequestMapping(value="getPage",method = RequestMethod.GET)
public RespBean getPage(HttpServletRequest request,
@RequestParam(defaultValue = "1") Integer page,
@RequestParam(defaultValue = "10") Integer pageSize) {
//获取token
String token = request.getHeader("token");
//获取user
// Jedis jedis = new Jedis("localhost");
// String userId = jedis.get(token);
String userId = (String) redisService.get(token);
Integer userId2 = Integer.valueOf(userId);
//获取分页
List<Customer> customers= customerService.getPage(userId2,page, pageSize);
//获取总数量
Integer count = customerService.getPageCount(userId2);
Map<String,Object> map = new HashMap<String,Object>();
map.put("data", customers);
map.put("count", count);
return RespBean.ok(map);
}
}
配置ip
配置文件配置ip port等信息
# redis
spring.redis.database=0
spring.redis.host=192.168.1.45
spring.redis.port=6379
spring.redis.password=
spring.redis.jedis.pool.max-active=8
spring.redis.jedis.pool.max-idle=8
spring.redis.jedis.pool.max-wait=-1ms
spring.redis.jedis.pool.min-idle=0
参考
江南一点雨的书
xiaogang.org.cn/articles/20… //单机
juejin.cn/post/684490… //单机和集群
