java後臺通過AOP註解方式可以輕鬆實現 用戶因網絡等原因,請求未結束,再次請求,有時候會造成數據錯亂的情況,通過AOP,可以很好的實現手速太快提示。
廢話不多說,直接上代碼。
1.切片類
注意:@Pointcut 切點對應的控制器一定要注意,否則會出現無法攔截的情況,具體用法相信大家隨便百度一下就可以知道,值得一提的是,如果你的控制器有子文件夾,你需要監聽的話,要加 ..* 兩個點 代表 該文件夾及子文件夾。
package com.xkygame.ssm.aspect;
import com.alibaba.fastjson.JSON;
import com.xkygame.ssm.enums.CodeEnums;
import com.xkygame.ssm.model.DataRes;
import com.xkygame.ssm.model.SessionUser;
import com.xkygame.ssm.utils.RedisTool;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.OutputStream;
/**
* Created by clarence on 2018/6/27.
* version : 1.0.
* desc : 請求訪問限制切點類
* 未響應結束不可重複訪問
* Author clarence.
*/
@Aspect //該標籤把LoggerAspect類聲明爲一個切面
@Component //該標籤把SystemLogAspect類放到IOC容器中
@Order(1)
public class RequestLimitAspect {
//本地異常日誌記錄對象
private static final Logger logger = LoggerFactory.getLogger(RequestLimitAspect.class);
/**
* 定義一個方法,用於聲明切入點表達式,方法中一般不需要添加其他代碼
* 使用@Pointcut聲明切入點表達式
* 後面的通知直接使用方法名來引用當前的切點表達式;如果是其他類使用,加上包名即可
*/
@Pointcut("execution(* com.xkygame.ssm.controller..*.*OrderTo(..))")
public void requestLimitPointCut() {
}
/**
* 前置通知 用於攔截Controller層 不可重複的操作
*
* @param joinPoint 切點
*/
@Before("requestLimitPointCut()")
public void doBefore(JoinPoint joinPoint) throws Exception {
HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
HttpServletResponse response = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getResponse();
SessionUser sessionUser = (SessionUser)request.getSession().getAttribute("sessionUser");
if(sessionUser != null){
String methodName = joinPoint.getSignature().getName();
logger.info("=============== 用戶請求了方法:" + methodName);
String requestKey = "maojiRequest:" + sessionUser.getId();
boolean isExist = RedisTool.sismember(requestKey,methodName);
if(isExist){
logger.info("請求尚未結束,用戶手速太快");
// 超過次數,權限拒絕訪問,訪問太頻繁!
render(response);
return;
}
RedisTool.sadd(requestKey,methodName);
RedisTool.setExpire(requestKey,300); //5分鐘
}else {
logger.info("=============== 用戶請求:未登錄");
}
}
/**
* 目標方法執行完 後 通知 用於攔截Controller層記錄用戶的操作
*
* @param joinPoint 切點
*/
@After("requestLimitPointCut()")
public void doAfter(JoinPoint joinPoint) throws Exception {
HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
SessionUser sessionUser = (SessionUser)request.getSession().getAttribute("sessionUser");
if(sessionUser != null){
String methodName = joinPoint.getSignature().getName();
logger.info("=============用戶請求結束:" + methodName);
String requestKey = "maojiRequest:" + sessionUser.getId();
boolean isExist = RedisTool.sismember(requestKey,methodName);
if(isExist){
logger.info("請求已經結束,去除限制");
long res = RedisTool.srem(requestKey,methodName);
if(res == 1){
logger.info("請求已經結束,移除接口:[" + methodName + "]限制成功!");
}
}
}else {
logger.info("=============用戶請求結束:未登錄");
}
}
private void render(HttpServletResponse response) throws Exception {
response.setContentType("application/json;charset=UTF-8");
OutputStream out = response.getOutputStream();
DataRes dataRes = new DataRes(CodeEnums.err3,"親,請不要手速太快哦!");
String str = JSON.toJSONString(dataRes);
out.write(str.getBytes("UTF-8"));
out.flush();
out.close();
}
}
2.註解類
package com.xkygame.ssm.annotation;
import java.lang.annotation.*;
/**
* @Author: Clarence
* @Description: 自定義註解 訪問限制 未響應結束不可手速太快
* @Date: 2018/8/3 13:13.
*/
@Target({ElementType.PARAMETER, ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface RequestLimit {
}
3.redis工具類(單機,如需集羣自行更改)
package com.xkygame.ssm.utils;
import com.google.common.collect.Sets;
import com.mysql.jdbc.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import redis.clients.jedis.BinaryClient;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;
import java.util.*;
/**
* Created by will on 2016/6/20.
*/
public class RedisTool {
private static JedisPool jedisPool = null;
private static Logger logger = LoggerFactory.getLogger(RedisTool.class);
/**
* 初始化jedis連接池
*
* @return
*/
public static JedisPool getPool() {
if (jedisPool == null) {
JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
Properties prop =PropertyUtil.getAll("redisConfig.properties");
int maxTotal=Integer.valueOf(prop.get("redis.maxTotal").toString());
int maxIdle=Integer.valueOf(prop.get("redis.maxIdle").toString());
int maxWaitMillis=Integer.valueOf(prop.get("redis.maxWaitMillis").toString());
boolean testOnBorrow=Boolean.valueOf(prop.get("redis.testOnBorrow").toString());
boolean testOnReturn=Boolean.valueOf(prop.get("redis.testOnReturn").toString());
String host=prop.get("redis.host").toString();
int port=Integer.valueOf(prop.get("redis.port").toString());
boolean testWhileIdle=Boolean.valueOf(prop.get("redis.testWhileIdle").toString());
int timeBetweenEvictionRunsMillis=Integer.valueOf(prop.get("redis.timeBetweenEvictionRunsMillis").toString());
int numTestsPerEvictionRun=Integer.valueOf(prop.get("redis.numTestsPerEvictionRun").toString());
int minEvictableIdleTimeMillis=Integer.valueOf(prop.get("redis.minEvictableIdleTimeMillis").toString());
int minIdle=Integer.valueOf(prop.get("redis.minIdle").toString());
// 控制一個pool最多有多少個可用的的jedis實例
jedisPoolConfig.setMaxTotal(maxTotal);
// 最大能夠保持空閒狀態的對象數
jedisPoolConfig.setMaxIdle(maxIdle);
// 超時時間
jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
// 在borrow一個jedis實例時,是否提前進行alidate操作;如果爲true,則得到的jedis實例均是可用的;
jedisPoolConfig.setTestOnBorrow(testOnBorrow);
// 在還會給pool時,是否提前進行validate操作
jedisPoolConfig.setTestOnReturn(testOnReturn);
jedisPoolConfig.setTestWhileIdle(testWhileIdle);
jedisPoolConfig.setNumTestsPerEvictionRun(numTestsPerEvictionRun);
jedisPoolConfig.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
jedisPoolConfig.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
jedisPoolConfig.setMinIdle(minIdle);
jedisPool = new JedisPool(jedisPoolConfig, host, port);
}
return jedisPool;
}
/**
* 返還到連接池
*
* @param pool
* @param redis
*/
public static void returnResource(JedisPool pool, Jedis redis) {
if (redis != null) {
pool.returnResource(redis);
}
}
/**
* <p>通過key獲取儲存在redis中的value</p>
* <p>並釋放連接</p>
* @param key
* @return 成功返回value 失敗返回null
*/
public static String get(String key){
String value = null;
JedisPool pool = null;
Jedis jedis = null;
try {
logger.info("建立連接中....");
pool = getPool();
jedis = pool.getResource();
logger.info("獲取"+key+"中....");
value = jedis.get(key);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error("建立連接失敗:"+e.getMessage());
} finally {
//返還到連接池
returnResource(pool, jedis);
}
return value;
}
/**
* <p>向redis存入key和value,並釋放連接資源</p>
* <p>如果key已經存在 則覆蓋</p>
* @param key
* @param value
* @return 成功 返回OK 失敗返回 0
*/
public static void set(String key, String value, int time) {
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
jedis.setex(key, time, value);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error(e.getMessage());
} finally {
//返還到連接池
returnResource(pool, jedis);
}
}
/**
* 對key值爲數值的增加 1
* @param key
*/
public static long Incre(String key) {
JedisPool pool = null;
Jedis jedis = null;
long count = 0;
try {
pool = getPool();
jedis = pool.getResource();
count = jedis.incr(key);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
e.printStackTrace();
} finally {
//返還到連接池
returnResource(pool, jedis);
}
return count;
}
/**
* 對key的值爲數值類型 減一
* @param key
*/
public static void Decr(String key) {
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
jedis.decr(key);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
e.printStackTrace();
} finally {
//返還到連接池
returnResource(pool, jedis);
}
}
/**
* 爲給定 key 設置生存時間,當 key 過期時(生存時間爲 0 ),它會被自動刪除。
* @param key
* @param time 指定的秒數時間戳
*/
public static void setExpire(String key, int time) {
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
jedis.expire(key,time);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error(e.getMessage());
} finally {
//返還到連接池
returnResource(pool, jedis);
}
}
/**
* 添加數據
*
* @param key
* @param value
*/
public static void set(String key, String value) {
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
jedis.set(key, value);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error(e.getMessage());
} finally {
//返還到連接池
returnResource(pool, jedis);
}
}
/**
* <p>刪除指定的key,也可以傳入一個包含key的數組</p>
* @param keys 一個key 也可以使 string 數組
* @return 返回刪除成功的個數
*/
public static Long del(String... keys){
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
return jedis.del(keys);
} catch (Exception e) {
e.printStackTrace();
return 0L;
} finally {
returnResource(pool, jedis);
}
}
/**
* 修改數據
*
* @param key:要修改數據的key
* @param value:要修改數據的值
* @return:返回boolean值,表示是否修改成功
*/
public static void update(String key, String value,int time) {
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
if (jedis.exists(key)) {
try {
jedis.setex(key,time, value);
if (value.equals(jedis.get(key))) {
logger.info("redis修改數據成功");
} else {
logger.error("redis修改數據失敗");
}
} catch (Exception e) {
logger.error("redis修改數據失敗:"+e.getMessage());
e.printStackTrace();
}
} else {
logger.error(key + "不存在");
logger.error("若要新增數據請使用set()方法");
}
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error(e.getMessage());
} finally {
//返還到連接池
returnResource(pool, jedis);
}
}
/**
* 修改數據
*
* @param key:要修改數據的key
* @param value:要修改數據的值
* @return:返回boolean值,表示是否修改成功
*/
public static void update(String key, String value) {
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
if (jedis.exists(key)) {
try {
jedis.set(key, value);
if (value.equals(jedis.get(key))) {
logger.info("redis修改數據成功");
} else {
logger.error("redis修改數據失敗");
}
} catch (Exception e) {
logger.error("redis修改數據失敗:"+e.getMessage());
e.printStackTrace();
}
} else {
logger.error(key + "不存在");
logger.error("若要新增數據請使用set()方法");
}
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error(e.getMessage());
} finally {
//返還到連接池
returnResource(pool, jedis);
}
}
/**
* 設置Set緩存
* @param key 鍵
* @param value 值
* @param cacheSeconds 超時時間,0爲不超時
* @return
*/
public static long setSet(String key, Set<String> value, int cacheSeconds) {
long result = 0;
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
if (jedis.exists(key)) {
jedis.del(key);
}
Object[] objects = value.toArray();
String[] setStr = new String[objects.length];
for (int i=0;i<objects.length;i++) {
setStr[i] = objects[i].toString();
}
result = jedis.sadd(key, setStr);
if (cacheSeconds > 0) {
jedis.expire(key, cacheSeconds);
}
logger.info("setSet {} = {}", key, value);
}catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error(e.getMessage());
} finally {
//返還到連接池
returnResource(pool, jedis);
}
return result;
}
/**
* 獲取緩存
* @param key 鍵
* @return 值
*/
public static Set<String> getSet(String key) {
Set<String> value = null;
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
if (jedis.exists(key)) {
value = jedis.smembers(key);
logger.debug("getSet {} = {}", key, value);
}
} catch (Exception e) {
logger.warn("getSet {} = {}", key+value, e);
} finally {
returnResource(pool, jedis);
}
return value;
}
/**
* <p>通過key向指定的value值追加值</p>
* @param key
* @param str
* @return 成功返回 添加後value的長度 失敗 返回 添加的 value 的長度 異常返回0L
*/
public Long append(String key ,String str){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.append(key, str);
} catch (Exception e) {
e.printStackTrace();
return 0L;
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>判斷key是否存在</p>
* @param key
* @return true OR false
*/
public Boolean exists(String key){
JedisPool pool =null;
Jedis jedis = null;
try {
jedis = pool.getResource();
return jedis.exists(key);
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
returnResource(pool, jedis);
}
}
/**
* <p>設置key value,如果key已經存在則返回0,nx==> not exist</p>
* @param key
* @param value
* @return 成功返回1 如果存在 和 發生異常 返回 0
*/
public Long setnx(String key ,String value){
JedisPool pool =null;
Jedis jedis = null;
try {
jedis = pool.getResource();
return jedis.setnx(key, value);
} catch (Exception e) {
e.printStackTrace();
return 0L;
} finally {
returnResource(pool, jedis);
}
}
/**
* <p>設置key value並制定這個鍵值的有效期</p>
* @param key
* @param value
* @param seconds 單位:秒
* @return 成功返回OK 失敗和異常返回null
*/
public String setex(String key,String value,int seconds){
JedisPool pool =null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.setex(key, seconds, value);
} catch (Exception e) {
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key 和offset 從指定的位置開始將原先value替換</p>
* <p>下標從0開始,offset表示從offset下標開始替換</p>
* <p>如果替換的字符串長度過小則會這樣</p>
* <p>example:</p>
* <p>value : [email protected]</p>
* <p>str : abc </p>
* <P>從下標7開始替換 則結果爲</p>
* <p>RES : bigsea.abc.cn</p>
* @param key
* @param str
* @param offset 下標位置
* @return 返回替換後 value 的長度
*/
public Long setrange(String key,String str,int offset){
JedisPool pool =null;
Jedis jedis = null;
try {
jedis = pool.getResource();
return jedis.setrange(key, offset, str);
} catch (Exception e) {
e.printStackTrace();
return 0L;
} finally {
returnResource(pool, jedis);
}
}
/**
* <p>通過批量的key獲取批量的value</p>
* @param keys string數組 也可以是一個key
* @return 成功返回value的集合, 失敗返回null的集合 ,異常返回空
*/
public List<String> mget(String...keys){
JedisPool pool =null;
Jedis jedis = null;
List<String> values = null;
try {
jedis = pool.getResource();
values = jedis.mget(keys);
} catch (Exception e) {
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return values;
}
/**
* <p>批量的設置key:value,可以一個</p>
* <p>example:</p>
* <p> obj.mset(new String[]{"key2","value1","key2","value2"})</p>
* @param keysvalues
* @return 成功返回OK 失敗 異常 返回 null
*
*/
public String mset(String...keysvalues){
JedisPool pool =null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.mset(keysvalues);
} catch (Exception e) {
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>批量的設置key:value,可以一個,如果key已經存在則會失敗,操作會回滾</p>
* <p>example:</p>
* <p> obj.msetnx(new String[]{"key2","value1","key2","value2"})</p>
* @param keysvalues
* @return 成功返回1 失敗返回0
*/
public Long msetnx(String...keysvalues){
JedisPool pool =null;
Jedis jedis = null;
Long res = 0L;
try {
jedis = pool.getResource();
res =jedis.msetnx(keysvalues);
} catch (Exception e) {
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* 設置Set緩存
* @param key 鍵
* @param value 值
* @param cacheSeconds 超時時間,0爲不超時
* @return
*/
public static long setObjectSet(String key, Set<Object> value, int cacheSeconds) {
long result = 0;
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
if (jedis.exists(key)) {
jedis.del(key);
}
Set<byte[]> set = Sets.newHashSet();
for (Object o : value){
set.add(toBytes(o));
}
result = jedis.sadd(getBytesKey(key), (byte[][])set.toArray());
if (cacheSeconds != 0) {
jedis.expire(key, cacheSeconds);
}
logger.debug("setObjectSet {} = {}", key, value);
} catch (Exception e) {
logger.error("setObjectSet {} = {}", key + value, e);
} finally {
returnResource(pool,jedis);
}
return result;
}
/**
* 獲取緩存
* @param key 鍵
* @return 值
*/
public static Set<Object> getObjectSet(String key) {
Set<Object> value = null;
JedisPool pool = null;
Jedis jedis = null;
try {
pool = getPool();
jedis = pool.getResource();
if (jedis.exists(getBytesKey(key))) {
value = Sets.newHashSet();
Set<byte[]> set = jedis.smembers(getBytesKey(key));
for (byte[] bs : set){
value.add(toObject(bs));
}
logger.debug("getObjectSet {} = {}", key, value);
}
} catch (Exception e) {
logger.warn("getObjectSet {} = {}", key+value, e);
} finally {
returnResource(pool, jedis);
}
return value;
}
/**
* Object轉換byte[]類型
* @param object
* @return
*/
public static byte[] toBytes(Object object){
return ObjectUtils.serialize(object);
}
/**
* 獲取byte[]類型Key
* @param object
* @return
*/
public static byte[] getBytesKey(Object object){
if(object instanceof String){
return StringUtils.getBytes((String) object);
}else{
return ObjectUtils.serialize(object);
}
}
/**
* byte[]型轉換Object
* @param bytes
* @return
*/
public static Object toObject(byte[] bytes){
return ObjectUtils.unserialize(bytes);
}
/**
* 存儲REDIS隊列 順序存儲
* <p>通過key向list頭部添加字符串</p>
* @param key
* @param strs 可以使一個string 也可以使string數組
* @return 返回list的value個數
*/
public static Long lpush(String key, String... strs){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
pool = getPool();
jedis = pool.getResource();
res = jedis.lpush(key, strs);
} catch (Exception e) {
logger.error("redis連接失敗:"+e.getMessage());
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* 存儲REDIS隊列 反向存儲
* <p>通過key向list尾部添加字符串</p>
* @param key
* @param strs 可以使一個string 也可以使string數組
* @return 返回list的value個數
*/
public Long rpush(String key ,String...strs){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.rpush(key, strs);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key在list指定的位置之前或者之後 添加字符串元素</p>
* @param key
* @param where LIST_POSITION枚舉類型
* @param pivot list裏面的value
* @param value 添加的value
* @return
*/
public Long linsert(String key, BinaryClient.LIST_POSITION where, String pivot, String value){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.linsert(key, where, pivot, value);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key設置list指定下標位置的value</p>
* <p>如果下標超過list裏面value的個數則報錯</p>
* @param key
* @param index 從0開始
* @param value
* @return 成功返回OK
*/
public String lset(String key ,Long index, String value){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.lset(key, index, value);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key從對應的list中刪除指定的count個 和 value相同的元素</p>
* @param key
* @param count 當count爲0時刪除全部
* @param value
* @return 返回被刪除的個數
*/
public Long lrem(String key,long count,String value){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.lrem(key, count, value);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key保留list中從strat下標開始到end下標結束的value值</p>
* @param key
* @param start
* @param end
* @return 成功返回OK
*/
public String ltrim(String key ,long start ,long end){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.ltrim(key, start, end);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key從list的頭部刪除一個value,並返回該value</p>
* @param key
* @return
*/
synchronized public String lpop(String key){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.lpop(key);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key從list尾部刪除一個value,並返回該元素</p>
* @param key
* @return
*/
static synchronized public String rpop(String key){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
logger.info("建立連接中....");
pool = getPool();
jedis = pool.getResource();
logger.info("連接成功,讀取中....");
res = jedis.rpop(key);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key從一個list的尾部刪除一個value並添加到另一個list的頭部,並返回該value</p>
* <p>如果第一個list爲空或者不存在則返回null</p>
* @param srckey
* @param dstkey
* @return
*/
public String rpoplpush(String srckey, String dstkey){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.rpoplpush(srckey, dstkey);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取list中指定下標位置的value</p>
* @param key
* @param index
* @return 如果沒有返回null
*/
public String lindex(String key,long index){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.lindex(key, index);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key返回list的長度</p>
* @param key
* @return
*/
public Long llen(String key){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.llen(key);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* 獲取隊列(list)數據
* <p>通過key獲取list指定下標位置的value</p>
* <p>如果start 爲 0 end 爲 -1 則返回全部的list中的value</p>
* @param key
* @param start
* @param end
* @return
*/
public static List lrange(String key, long start, long end){
JedisPool pool = null;
Jedis jedis = null;
List res = null;
try {
logger.info("建立連接中....");
pool = getPool();
jedis = pool.getResource();
logger.info("連接成功,讀取中....");
res = jedis.lrange(key, start, end);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key向指定的set中添加value</p>
* @param key
* @param members 可以是一個String 也可以是一個String數組
* @return 添加成功的個數
*/
public Long sadd(String key,String...members){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.sadd(key, members);
} catch (Exception e) {
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key刪除set中對應的value值</p>
* @param key
* @param members 可以是一個String 也可以是一個String數組
* @return 刪除的個數
*/
public Long srem(String key,String...members){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.srem(key, members);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key隨機刪除一個set中的value並返回該值</p>
* @param key
* @return
*/
public String spop(String key){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.spop(key);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取set中的差集</p>
* <p>以第一個set爲標準</p>
* @param keys 可以使一個string 則返回set中所有的value 也可以是string數組
* @return
*/
public Set<String> sdiff(String...keys){
JedisPool pool = null;
Jedis jedis = null;
Set<String> res = null;
try {
jedis = pool.getResource();
res = jedis.sdiff(keys);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取set中的差集並存入到另一個key中</p>
* <p>以第一個set爲標準</p>
* @param dstkey 差集存入的key
* @param keys 可以使一個string 則返回set中所有的value 也可以是string數組
* @return
*/
public Long sdiffstore(String dstkey,String... keys){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.sdiffstore(dstkey, keys);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取指定set中的交集</p>
* @param keys 可以使一個string 也可以是一個string數組
* @return
*/
public Set<String> sinter(String...keys){
JedisPool pool = null;
Jedis jedis = null;
Set<String> res = null;
try {
jedis = pool.getResource();
res = jedis.sinter(keys);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取指定set中的交集 並將結果存入新的set中</p>
* @param dstkey
* @param keys 可以使一個string 也可以是一個string數組
* @return
*/
public Long sinterstore(String dstkey,String...keys){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.sinterstore(dstkey, keys);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key返回所有set的並集</p>
* @param keys 可以使一個string 也可以是一個string數組
* @return
*/
public Set<String> sunion(String... keys){
JedisPool pool = null;
Jedis jedis = null;
Set<String> res = null;
try {
jedis = pool.getResource();
res = jedis.sunion(keys);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key返回所有set的並集,並存入到新的set中</p>
* @param dstkey
* @param keys 可以使一個string 也可以是一個string數組
* @return
*/
public Long sunionstore(String dstkey,String...keys){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.sunionstore(dstkey, keys);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key將set中的value移除並添加到第二個set中</p>
* @param srckey 需要移除的
* @param dstkey 添加的
* @param member set中的value
* @return
*/
public Long smove(String srckey, String dstkey, String member){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.smove(srckey, dstkey, member);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取set中value的個數</p>
* 獲取集合大小
* @param key
* @return
*/
public static Long scard(String key){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
logger.info("建立連接中....");
pool = getPool();
jedis = pool.getResource();
res = jedis.scard(key);
logger.info("Set集合中:"+key+" --> 個數: " + res);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error("建立連接失敗:"+e.getMessage());
} finally {
//返還到連接池
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key判斷value是否是set中的元素</p>
* 判斷key,value是否是集合中值
* @param key
* @param member
* @return
*/
public static Boolean sismember(String key, String member){
JedisPool pool = null;
Jedis jedis = null;
Boolean res = null;
try {
logger.info("建立連接中....");
pool = getPool();
jedis = pool.getResource();
res = jedis.sismember(key, member);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error("建立連接失敗:"+e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取set中隨機的value,不刪除元素</p>
* @param key
* @return
*/
public String srandmember(String key){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
jedis = pool.getResource();
res = jedis.srandmember(key);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取set中所有的value</p>
* @param key
* @return
*/
public static Set<String> smembers(String key){
JedisPool pool = null;
Jedis jedis = null;
Set<String> res = new HashSet<String>();
try {
pool = getPool();
jedis = pool.getResource();
res = jedis.smembers(key);
} catch (Exception e) {
pool.returnBrokenResource(jedis);
logger.error("建立連接失敗:"+e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key向zset中添加value,score,其中score就是用來排序的</p>
* <p>如果該value已經存在則根據score更新元素</p>
* @param key
* @param score
* @param member
* @return
*/
public Long zadd(String key,double score,String member){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.zadd(key, score, member);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key刪除在zset中指定的value</p>
* @param key
* @param members 可以使一個string 也可以是一個string數組
* @return
*/
public Long zrem(String key,String...members){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.zrem(key, members);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key增加該zset中value的score的值</p>
* @param key
* @param score
* @param member
* @return
*/
public Double zincrby(String key ,double score ,String member){
JedisPool pool = null;
Jedis jedis = null;
Double res = null;
try {
jedis = pool.getResource();
res = jedis.zincrby(key, score, member);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key返回zset中value的排名</p>
* <p>下標從小到大排序</p>
* @param key
* @param member
* @return
*/
public Long zrank(String key,String member){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.zrank(key, member);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key返回zset中value的排名</p>
* <p>下標從大到小排序</p>
* @param key
* @param member
* @return
*/
public Long zrevrank(String key,String member){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.zrevrank(key, member);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key將獲取score從start到end中zset的value</p>
* <p>socre從大到小排序</p>
* <p>當start爲0 end爲-1時返回全部</p>
* @param key
* @param start
* @param end
* @return
*/
public Set<String> zrevrange(String key ,long start ,long end){
JedisPool pool = null;
Jedis jedis = null;
Set<String> res = null;
try {
jedis = pool.getResource();
res = jedis.zrevrange(key, start, end);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key返回指定score內zset中的value</p>
* @param key
* @param max
* @param min
* @return
*/
public Set<String> zrangebyscore(String key,String max,String min){
JedisPool pool = null;
Jedis jedis = null;
Set<String> res = null;
try {
jedis = pool.getResource();
res = jedis.zrevrangeByScore(key, max, min);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key返回指定score內zset中的value</p>
* @param key
* @param max
* @param min
* @return
*/
public Set<String> zrangeByScore(String key ,double max,double min){
JedisPool pool = null;
Jedis jedis = null;
Set<String> res = null;
try {
jedis = pool.getResource();
res = jedis.zrevrangeByScore(key,max,min);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>返回指定區間內zset中value的數量</p>
* @param key
* @param min
* @param max
* @return
*/
public Long zcount(String key,String min,String max){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.zcount(key, min, max);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key返回zset中的value個數</p>
* @param key
* @return
*/
public Long zcard(String key){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.zcard(key);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key獲取zset中value的score值</p>
* @param key
* @param member
* @return
*/
public Double zscore(String key,String member){
JedisPool pool = null;
Jedis jedis = null;
Double res = null;
try {
jedis = pool.getResource();
res = jedis.zscore(key, member);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key刪除給定區間內的元素</p>
* @param key
* @param start
* @param end
* @return
*/
public Long zremrangeByRank(String key ,long start, long end){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.zremrangeByRank(key, start, end);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key刪除指定score內的元素</p>
* @param key
* @param start
* @param end
* @return
*/
public Long zremrangeByScore(String key,double start,double end){
JedisPool pool = null;
Jedis jedis = null;
Long res = null;
try {
jedis = pool.getResource();
res = jedis.zremrangeByScore(key, start, end);
} catch (Exception e) {
logger.error(e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>返回滿足pattern表達式的所有key</p>
* <p>keys(*)</p>
* <p>返回所有的key</p>
* @param pattern
* @return
*/
public Set queryKeys(String pattern){
JedisPool pool = null;
Jedis jedis = null;
Set res = null;
try {
pool = getPool();
jedis = pool.getResource();
res = jedis.keys(pattern);
} catch (Exception e) {
logger.error(e.getMessage());
e.printStackTrace();
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* <p>通過key判斷值得類型</p>
* @param key
* @return
*/
public String type(String key){
JedisPool pool = null;
Jedis jedis = null;
String res = null;
try {
logger.info("建立連接中....");
pool = getPool();
jedis = pool.getResource();
res = jedis.type(key);
logger.info("獲取"+key+"類型: " + res);
} catch (Exception e) {
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error("建立連接失敗:"+e.getMessage());
} finally {
returnResource(pool, jedis);
}
return res;
}
/**
* 向Redis中Set集合添加值
* @return
*/
public static long sadd(String key, String value){
JedisPool pool = null;
Jedis jedis = null;
long res = 0;
try{
logger.info("建立連接中....");
pool = getPool();
jedis = pool.getResource();
res = jedis.sadd(key, value);
logger.info("向Redis中Set集合添加值: --> "+key+" 結果: " + res);
}catch (Exception e){
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error("建立連接失敗:"+e.getMessage());
}finally {
//返還到連接池
returnResource(pool, jedis);
}
return res;
}
/**
* 移除:取消點贊
* @param key
* @param value
* @return
*/
public static long srem(String key, String value){
JedisPool pool = null;
Jedis jedis = null;
long res = 0;
try{
logger.info("建立連接中....");
pool = getPool();
jedis = pool.getResource();
res = jedis.srem(key, value);
logger.info("向Redis中Set集合移除值: --> "+ key +" 結果: " + res);
}catch (Exception e){
//釋放redis對象
pool.returnBrokenResource(jedis);
logger.error("建立連接失敗:"+e.getMessage());
}finally {
//返還到連接池
returnResource(pool, jedis);
}
return res;
}
public static void main(String[] arg0) {
// List<ProSalesDto> proSalesDtos = new ArrayList<ProSalesDto>();
//
// for (int i = 0; i < 10; i++) {
// ProSalesDto proSalesDto = new ProSalesDto();
// proSalesDto.setName("第"+i +"個");
// RedisTool.sadd("proSalesDtos2", JSONObject.toJSONString(proSalesDto));
// }
Set<String> sets = RedisTool.smembers("proSalesDtos333");
System.out.println("The members of myset are: " + sets.size());
Iterator<String> iterator = sets.iterator();
while(iterator.hasNext()){
String it = iterator.next();
System.out.println(it);
}
}
}
4.請求響應類
package com.xkygame.ssm.model;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.xkygame.ssm.enums.CodeEnums;
import java.io.Serializable;
/**
* Created by will on 2017/2/19.
* 描述 :由服務端響應數據返回體
*/
public class DataRes implements Serializable{
/**
* 請求響應結果碼
*/
private String status;
/**
* 對響應的結果碼進行具體描述
*/
private String errmsg;
/**
* 附加數據
*/
private String otherData;
/**
* 返回的請求數據
*/
private JSONObject result;
/**
* 返回的請求數據
*/
private JSONObject otherRes;
/**
* 返回的列表數據
*/
private JSONArray arrayresult;
private JSONArray list;
public DataRes(String status, String errmsg, JSONObject result) {
this.status = status;
this.errmsg = errmsg;
this.result = result;
}
public DataRes(CodeEnums codeEnums, String errmsg, JSONObject result) {
this.status = codeEnums.getErrCode();
this.errmsg = errmsg;
this.result = result;
}
public DataRes(CodeEnums codeEnums,JSONObject result,String otherData) {
this.status = codeEnums.getErrCode();
this.otherData = otherData;
this.errmsg = codeEnums.getErrMsg();
this.result = result;
}
public DataRes(CodeEnums codeEnums, JSONArray arrayresult) {
this.status = codeEnums.getErrCode();
this.errmsg = codeEnums.getErrMsg();
this.arrayresult = arrayresult;
}
public DataRes(CodeEnums codeEnums, JSONObject result, JSONArray arrayresult) {
this.status = codeEnums.getErrCode();
this.errmsg = codeEnums.getErrMsg();
this.result = result;
this.arrayresult = arrayresult;
}
public DataRes(CodeEnums codeEnums, String errmsg, JSONObject result, JSONArray arrayresult) {
this.status = codeEnums.getErrCode();
this.errmsg = errmsg;
this.result = result;
this.arrayresult = arrayresult;
}
public DataRes(CodeEnums codeEnums, JSONObject result) {
this.status = codeEnums.getErrCode();
this.errmsg = codeEnums.getErrMsg();
this.result = result;
}
public DataRes(CodeEnums codeEnums, String errmsg) {
this.status = codeEnums.getErrCode();
this.errmsg = errmsg;
}
public DataRes(CodeEnums codeEnums) {
this.status = codeEnums.getErrCode();
this.errmsg = codeEnums.getErrMsg();
}
public DataRes(CodeEnums codeEnums, String errmsg, JSONObject result, JSONArray arrayresult,JSONArray list) {
this.status = codeEnums.getErrCode();
this.errmsg = errmsg;
this.result = result;
this.arrayresult = arrayresult;
this.list = list;
}
public DataRes(CodeEnums codeEnums, JSONArray arrayresult, JSONArray list) {
this.status = codeEnums.getErrCode();
this.errmsg = codeEnums.getErrMsg();
this.arrayresult = arrayresult;
this.list = list;
}
public DataRes(CodeEnums codeEnums, String errmsg, JSONObject otherRes, JSONObject result) {
this.status = codeEnums.getErrCode();
this.errmsg = errmsg;
this.result = result;
this.otherRes = otherRes;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public String getErrmsg() {
return errmsg;
}
public void setErrmsg(String errmsg) {
this.errmsg = errmsg;
}
public JSONObject getResult() {
return result;
}
public void setResult(JSONObject result) {
this.result = result;
}
public JSONArray getArrayresult() {
return arrayresult;
}
public void setArrayresult(JSONArray arrayresult) {
this.arrayresult = arrayresult;
}
public String getOtherData() {
return otherData;
}
public void setOtherData(String otherData) {
this.otherData = otherData;
}
public JSONObject getOtherRes() {
return otherRes;
}
public void setOtherRes(JSONObject otherRes) {
this.otherRes = otherRes;
}
public JSONArray getList() {
return list;
}
public void setList(JSONArray list) {
this.list = list;
}
}
最後,只需要在需要請求限制的接口上添加註解@RequestLimit()
當然,這是根據我目前項目使用到的代碼,大家可以根據自己所需選取相應部分。因爲我比較懶~