java中redis增删查以及清理缓存的案例

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这篇文章主要介绍了java中redis增删查以及清理缓存的案例，具有很好的参考价值，希望对大家有所帮助。一起跟随小编过来看看吧
我就废话不多说了，大家还是直接看代码吧~
Controller

@ApiOperation(value = "获取信息放入Redis中")
 @RequestMapping(value = "/getPropertyTakeLookShoppingDetailRedis",method = RequestMethod.POST)
 public JsonResult getPropertyTakeLookShoppingDetailRedis(@RequestBody PropertyTakeLookRedisParam param) throws Exception {
  log.info("PropertyTakeLookController.getPropertyTakeLookShoppingDetailRedis:" + param);
  JSONObject jsonObject = propertyTakeLookWriteService.getPropertyTakeLookShoppingDetailRedis(param);
  log.info("PropertyTakeLookController.getPropertyTakeLookSysInfo:" + jsonObject);
  return JsonResult.getResult(jsonObject);
 }

Service
增删查区分 读缓存 = 0; 添加 =1;删除 = 2 ; 清除相应经纪人清单缓存 = 3 ")

/**
 * 获取信息放入Redis中 
 * @return
 * @throws Exception
 */
public JSONObject getPropertyTakeLookShoppingDetailRedis(PropertyTakeLookRedisParam param) throws Exception {
 String takeLookStr = "DKQD";
 checkArgument(StringUtils.isNotBlank(param.getTakeLookUserEmpNo()), "工号不能为空！");
 checkArgument(param.getSelOrAddOrRemove() != null, "增删查区分不能为空！");
 String takeLookUserEmpNo = param.getTakeLookUserEmpNo();
 JSONObject jsonObject;
 if(redisHandle.exists(takeLookUserEmpNo+takeLookStr) && param.getSelOrAddOrRemove() == 0){
  jsonObject = JSONObject.parseObject(redisHandle.get(takeLookUserEmpNo+takeLookStr).toString());
 } else if(param.getSelOrAddOrRemove() == 1 || param.getSelOrAddOrRemove() == 2){
  Long[] effectiveIds = param.getPropertyEffectiveId();
  PropertyTakeLookShoppingCartParam propertyTakeLookShoppingCartParam = new PropertyTakeLookShoppingCartParam();
  BeanUtils.copyProperties(param,propertyTakeLookShoppingCartParam);
  propertyTakeLookShoppingCartParam.setPropertyEffectiveId(effectiveIds);
  //获取信息
  PageInfo<?> takeLookDetail = propertytakelookService.getPropertyTakeLookShoppingCartDetail(propertyTakeLookShoppingCartParam);
  System.out.print("参数查看" + JsonResult.getResult(takeLookDetail).toJson());
  jsonObject = JSONObject.parseObject(JsonResult.getResult(takeLookDetail).toJson());
  Object jsonArray = jsonObject.get("data");
  redisHandle.set(takeLookUserEmpNo+takeLookStr,jsonArray);
 }else if (redisHandle.exists(takeLookUserEmpNo+takeLookStr) && param.getSelOrAddOrRemove() == 3){
  //物理清除缓存
  redisHandle.remove(takeLookUserEmpNo+takeLookStr);
  jsonObject = new JSONObject();
  jsonObject.put("code",ErrorCode.SUCCESS.getCode());
  jsonObject.put("msg",ErrorCode.SUCCESS.getMsg());
 }else {
  jsonObject = new JSONObject();
  jsonObject.put("code",ErrorCode.SUCCESS.getCode());
  jsonObject.put("msg",ErrorCode.SUCCESS.getMsg());
 }
 return jsonObject;
}

补充：java按照关键字指定的key删除redis(支持模糊删除)
pom依赖：

<dependency>
  <groupId>redis.clients</groupId>
  <artifactId>jedis</artifactId>
  <version>2.5.0</version>
</dependency>

代码直接可用：

import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import redis.clients.jedis.Jedis;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
public class TestRedis {
 private Jedis jedis;
 @BeforeClass
 public void setup() {
  //连接redis服务器，ip
  jedis = new Jedis("ip", 6379);
  //权限认证
  jedis.auth("123456");
 }
 /**
  * 删除数据
  * 
  *
  * @param key：要删除数据的key
  * @return：返回boolean值，表示是否删除成功
  */
 public boolean delete(String key) {
  if (jedis.exists(key)) {
   if (jedis.del(key) == 1) {
  System.out.println("删除数据成功");
  return true;
   } else {
  System.out.println("删除数据失败");
  return false;
   }
  } else {
   System.out.println(key + "不存在");
   return false;
  }
 }
 @Test
 public void test() {
  delete("age");
 }
}

以上为个人经验，希望能给大家一个参考，也希望大家多多支持CodeAE代码之家。如有错误或未考虑完全的地方，望不吝赐教。
原文链接：https://blog.csdn.net/qq_40110781/article/details/88600984