java中redis增删查以及清理缓存的案例

@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);

  }

/**

  * 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;

}

< dependency >

   < groupId >redis.clients</ groupId >

   < artifactId >jedis</ artifactId >

   < version >2.5.0</ version >

</ dependency >

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" );

  }

}