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集成redis & task

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This commit is contained in:
limqhz
2022-05-04 02:45:31 +08:00
parent cf985bd44f
commit f701baaf04
10 changed files with 802 additions and 6 deletions
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2
src/main/java/com/quinn/common/QuinnConstant.java
View File

@@ -6,4 +6,6 @@ public interface QuinnConstant {
String GUN = "The emperor's new clothes";
String SOURCE_KEY = "SOURCE_KEY_";
}

2
src/main/java/com/quinn/controller/BlogController.java
View File

@@ -117,11 +117,9 @@ public class BlogController {
@GetMapping("/blog/read/{bid}")
public String read(@PathVariable("bid") String bid,Model model){
Blog blog = blogService.getOne(new QueryWrapper<Blog>().eq("bid", bid));
// todo: redis缓存. 防止阅读重复
blog.setViews(blog.getViews()+1);
blogService.updateById(blog);
model.addAttribute("blog",blog);
// todo： 查询评论
List<Comment> commentList = commentService.list(new QueryWrapper<Comment>().eq("topic_id", bid).orderByDesc("gmt_create"));
model.addAttribute("commentList",commentList);
return "blog/read";

2
src/main/java/com/quinn/controller/QuestionController.java
View File

@@ -127,11 +127,9 @@ public class QuestionController {
@GetMapping("/question/read/{qid}")
public String read(@PathVariable("qid") String qid,Model model){
Question question = questionService.getOne(new QueryWrapper<Question>().eq("qid", qid));
// todo: redis缓存. 防止阅读重复
question.setViews(question.getViews()+1);
questionService.updateById(question);
model.addAttribute("question",question);
// todo： 查询评论.
List<Comment> commentList = commentService.list(new QueryWrapper<Comment>().eq("topic_id", qid).orderByDesc("gmt_create"));
model.addAttribute("commentList",commentList);
return "question/read";

3
src/main/java/com/quinn/controller/SourceController.java
View File

@@ -10,6 +10,7 @@ import com.quinn.service.SourceCategoryService;
import com.quinn.service.SourceCommentService;
import com.quinn.service.SourceService;
import org.springframework.stereotype.Controller;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.ui.Model;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;
@@ -129,7 +130,7 @@ public class SourceController {
* @throws IOException
*/
@GetMapping("/source/download/{sid}")
public void read(HttpServletResponse response, @PathVariable("sid") String sid) throws IOException {
public void download(HttpServletResponse response, @PathVariable("sid") String sid) throws IOException {
Source source = sourceService.getOne(new QueryWrapper<Source>().eq("id", sid));
//通知浏览器以附件形式下载
response.setHeader("Content-Disposition",

21
src/main/java/com/quinn/service/impl/SourceServiceImpl.java
View File

@@ -5,6 +5,7 @@ import com.quinn.mapper.SourceMapper;
import com.quinn.service.SourceService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.quinn.utils.OSSClientUtil;
import com.quinn.utils.RedisUtils;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
@@ -26,10 +27,13 @@ public class SourceServiceImpl extends ServiceImpl<SourceMapper, Source> impleme
@Resource
OSSClientUtil ossClientUtil;
@Resource
RedisUtils redisUtils;
@Override
public void downloadSource(ServletOutputStream outputStream, Source source) throws IOException {
String sourceLink = source.getSourceLink();
addDownLoadRecord(source);
// 读取文件内容。
BufferedInputStream in = new BufferedInputStream(ossClientUtil.downloadFile(sourceLink));
BufferedOutputStream out = new BufferedOutputStream(outputStream);
@@ -46,4 +50,21 @@ public class SourceServiceImpl extends ServiceImpl<SourceMapper, Source> impleme
in.close();
}
}
/**
* 更新页码
* @param source
*/
private void addDownLoadRecord(Source source) {
// Integer downLoadTime = (Integer) redisUtils.get(QuinnConstant.SOURCE_KEY + source.getId());
// int downTimes = 0;
// if (StringUtils.isEmpty(downLoadTime)){
// downTimes = source.getDownRecord() + 1;
// }else {
// downTimes = downLoadTime + 1;
// }
// redisUtils.set(QuinnConstant.SOURCE_KEY + source.getId(),downTimes);
source.setDownRecord(source.getDownRecord() + 1);
updateById(source);
}
}

45
src/main/java/com/quinn/task/UpdateViewTask.java Normal file
View File

@@ -0,0 +1,45 @@
package com.quinn.task;
import com.quinn.common.QuinnConstant;
import com.quinn.pojo.Source;
import com.quinn.service.SourceService;
import com.quinn.utils.RedisUtils;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;
import javax.annotation.Resource;
import java.util.List;
/**
*
* @author limqsh
*/
//@Component
public class UpdateViewTask {
@Resource
SourceService sourceService;
@Resource
RedisUtils redisUtils;
/**
* 每小时执行一次
*/
// @Scheduled(cron = "0 0 */1 * * ?")
public void execute(){
List<Source> list = sourceService.list(null);
if (!CollectionUtils.isEmpty(list)){
list.forEach(x->{
String downTimes = (String) redisUtils.get(QuinnConstant.SOURCE_KEY + x.getId());
if (!StringUtils.isEmpty(downTimes)){
x.setDownRecord(Integer.parseInt(downTimes));
sourceService.updateById(x);
}
});
}
}
}

705
src/main/java/com/quinn/utils/RedisUtils.java Normal file
View File

@@ -0,0 +1,705 @@
/*
* Copyright 2019-2020 Zheng Jie
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.quinn.utils;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.*;
import org.springframework.stereotype.Component;
import java.util.*;
import java.util.concurrent.TimeUnit;
/**
* @author /
*/
@Component
public class RedisUtils {
private static final Logger log = LoggerFactory.getLogger(RedisUtils.class);
private RedisTemplate<Object, Object> redisTemplate;
public RedisUtils(RedisTemplate<Object, Object> redisTemplate) {
this.redisTemplate = redisTemplate;
}
/**
* 指定缓存失效时间
*
* @param key 键
* @param time 时间(秒)
*/
public boolean expire(String key, long time) {
try {
if (time > 0) {
redisTemplate.expire(key, time, TimeUnit.SECONDS);
}
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
return true;
}
/**
* 指定缓存失效时间
*
* @param key 键
* @param time 时间(秒)
* @param timeUnit 单位
*/
public boolean expire(String key, long time, TimeUnit timeUnit) {
try {
if (time > 0) {
redisTemplate.expire(key, time, timeUnit);
}
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
return true;
}
/**
* 根据 key 获取过期时间
*
* @param key 键 不能为null
* @return 时间(秒) 返回0代表为永久有效
*/
public long getExpire(Object key) {
return redisTemplate.getExpire(key, TimeUnit.SECONDS);
}
/**
* 查找匹配key
*
* @param pattern key
* @return /
*/
public List<String> scan(String pattern) {
ScanOptions options = ScanOptions.scanOptions().match(pattern).build();
RedisConnectionFactory factory = redisTemplate.getConnectionFactory();
RedisConnection rc = Objects.requireNonNull(factory).getConnection();
Cursor<byte[]> cursor = rc.scan(options);
List<String> result = new ArrayList<>();
while (cursor.hasNext()) {
result.add(new String(cursor.next()));
}
try {
RedisConnectionUtils.releaseConnection(rc, factory);
} catch (Exception e) {
log.error(e.getMessage(), e);
}
return result;
}
/**
* 分页查询 key
*
* @param patternKey key
* @param page 页码
* @param size 每页数目
* @return /
*/
public List<String> findKeysForPage(String patternKey, int page, int size) {
ScanOptions options = ScanOptions.scanOptions().match(patternKey).build();
RedisConnectionFactory factory = redisTemplate.getConnectionFactory();
RedisConnection rc = Objects.requireNonNull(factory).getConnection();
Cursor<byte[]> cursor = rc.scan(options);
List<String> result = new ArrayList<>(size);
int tmpIndex = 0;
int fromIndex = page * size;
int toIndex = page * size + size;
while (cursor.hasNext()) {
if (tmpIndex >= fromIndex && tmpIndex < toIndex) {
result.add(new String(cursor.next()));
tmpIndex++;
continue;
}
// 获取到满足条件的数据后,就可以退出了
if (tmpIndex >= toIndex) {
break;
}
tmpIndex++;
cursor.next();
}
try {
RedisConnectionUtils.releaseConnection(rc, factory);
} catch (Exception e) {
log.error(e.getMessage(), e);
}
return result;
}
/**
* 判断key是否存在
*
* @param key 键
* @return true 存在 false不存在
*/
public boolean hasKey(String key) {
try {
return redisTemplate.hasKey(key);
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 删除缓存
*
* @param keys 可以传一个值 或多个
*/
public void del(String... keys) {
if (keys != null && keys.length > 0) {
if (keys.length == 1) {
boolean result = redisTemplate.delete(keys[0]);
log.debug("--------------------------------------------");
log.debug(new StringBuilder("删除缓存：").append(keys[0]).append("，结果：").append(result).toString());
log.debug("--------------------------------------------");
} else {
Set<Object> keySet = new HashSet<>();
for (String key : keys) {
keySet.addAll(redisTemplate.keys(key));
}
long count = redisTemplate.delete(keySet);
log.debug("--------------------------------------------");
log.debug("成功删除缓存：" + keySet.toString());
log.debug("缓存删除数量：" + count + "个");
log.debug("--------------------------------------------");
}
}
}
// ============================String=============================
/**
* 普通缓存获取
*
* @param key 键
* @return 值
*/
public Object get(String key) {
return key == null ? null : redisTemplate.opsForValue().get(key);
}
/**
* 批量获取
*
* @param keys
* @return
*/
public List<Object> multiGet(List<String> keys) {
List list = redisTemplate.opsForValue().multiGet(Sets.newHashSet(keys));
List resultList = Lists.newArrayList();
Optional.ofNullable(list).ifPresent(e-> list.forEach(ele-> Optional.ofNullable(ele).ifPresent(resultList::add)));
return resultList;
}
/**
* 普通缓存放入
*
* @param key 键
* @param value 值
* @return true成功 false失败
*/
public boolean set(String key, Object value) {
try {
redisTemplate.opsForValue().set(key, value);
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 普通缓存放入并设置时间
*
* @param key 键
* @param value 值
* @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期
* @return true成功 false 失败
*/
public boolean set(String key, Object value, long time) {
try {
if (time > 0) {
redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);
} else {
set(key, value);
}
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 普通缓存放入并设置时间
*
* @param key 键
* @param value 值
* @param time 时间
* @param timeUnit 类型
* @return true成功 false 失败
*/
public boolean set(String key, Object value, long time, TimeUnit timeUnit) {
try {
if (time > 0) {
redisTemplate.opsForValue().set(key, value, time, timeUnit);
} else {
set(key, value);
}
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
// ================================Map=================================
/**
* HashGet
*
* @param key 键 不能为null
* @param item 项 不能为null
* @return 值
*/
public Object hget(String key, String item) {
return redisTemplate.opsForHash().get(key, item);
}
/**
* 获取hashKey对应的所有键值
*
* @param key 键
* @return 对应的多个键值
*/
public Map<Object, Object> hmget(String key) {
return redisTemplate.opsForHash().entries(key);
}
/**
* HashSet
*
* @param key 键
* @param map 对应多个键值
* @return true 成功 false 失败
*/
public boolean hmset(String key, Map<String, Object> map) {
try {
redisTemplate.opsForHash().putAll(key, map);
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* HashSet 并设置时间
*
* @param key 键
* @param map 对应多个键值
* @param time 时间(秒)
* @return true成功 false失败
*/
public boolean hmset(String key, Map<String, Object> map, long time) {
try {
redisTemplate.opsForHash().putAll(key, map);
if (time > 0) {
expire(key, time);
}
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
*
* @param key 键
* @param item 项
* @param value 值
* @return true 成功 false失败
*/
public boolean hset(String key, String item, Object value) {
try {
redisTemplate.opsForHash().put(key, item, value);
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
*
* @param key 键
* @param item 项
* @param value 值
* @param time 时间(秒) 注意:如果已存在的hash表有时间,这里将会替换原有的时间
* @return true 成功 false失败
*/
public boolean hset(String key, String item, Object value, long time) {
try {
redisTemplate.opsForHash().put(key, item, value);
if (time > 0) {
expire(key, time);
}
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 删除hash表中的值
*
* @param key 键 不能为null
* @param item 项 可以使多个 不能为null
*/
public void hdel(String key, Object... item) {
redisTemplate.opsForHash().delete(key, item);
}
/**
* 判断hash表中是否有该项的值
*
* @param key 键 不能为null
* @param item 项 不能为null
* @return true 存在 false不存在
*/
public boolean hHasKey(String key, String item) {
return redisTemplate.opsForHash().hasKey(key, item);
}
/**
* hash递增 如果不存在,就会创建一个 并把新增后的值返回
*
* @param key 键
* @param item 项
* @param by 要增加几(大于0)
* @return
*/
public double hincr(String key, String item, double by) {
return redisTemplate.opsForHash().increment(key, item, by);
}
/**
* hash递减
*
* @param key 键
* @param item 项
* @param by 要减少记(小于0)
* @return
*/
public double hdecr(String key, String item, double by) {
return redisTemplate.opsForHash().increment(key, item, -by);
}
// ============================set=============================
/**
* 根据key获取Set中的所有值
*
* @param key 键
* @return
*/
public Set<Object> sGet(String key) {
try {
return redisTemplate.opsForSet().members(key);
} catch (Exception e) {
log.error(e.getMessage(), e);
return null;
}
}
/**
* 根据value从一个set中查询,是否存在
*
* @param key 键
* @param value 值
* @return true 存在 false不存在
*/
public boolean sHasKey(String key, Object value) {
try {
return redisTemplate.opsForSet().isMember(key, value);
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 将数据放入set缓存
*
* @param key 键
* @param values 值 可以是多个
* @return 成功个数
*/
public long sSet(String key, Object... values) {
try {
return redisTemplate.opsForSet().add(key, values);
} catch (Exception e) {
log.error(e.getMessage(), e);
return 0;
}
}
/**
* 将set数据放入缓存
*
* @param key 键
* @param time 时间(秒)
* @param values 值 可以是多个
* @return 成功个数
*/
public long sSetAndTime(String key, long time, Object... values) {
try {
Long count = redisTemplate.opsForSet().add(key, values);
if (time > 0) {
expire(key, time);
}
return count;
} catch (Exception e) {
log.error(e.getMessage(), e);
return 0;
}
}
/**
* 获取set缓存的长度
*
* @param key 键
* @return
*/
public long sGetSetSize(String key) {
try {
return redisTemplate.opsForSet().size(key);
} catch (Exception e) {
log.error(e.getMessage(), e);
return 0;
}
}
/**
* 移除值为value的
*
* @param key 键
* @param values 值 可以是多个
* @return 移除的个数
*/
public long setRemove(String key, Object... values) {
try {
Long count = redisTemplate.opsForSet().remove(key, values);
return count;
} catch (Exception e) {
log.error(e.getMessage(), e);
return 0;
}
}
// ===============================list=================================
/**
* 获取list缓存的内容
*
* @param key 键
* @param start 开始
* @param end 结束 0 到 -1代表所有值
* @return
*/
public List<Object> lGet(String key, long start, long end) {
try {
return redisTemplate.opsForList().range(key, start, end);
} catch (Exception e) {
log.error(e.getMessage(), e);
return null;
}
}
/**
* 获取list缓存的长度
*
* @param key 键
* @return
*/
public long lGetListSize(String key) {
try {
return redisTemplate.opsForList().size(key);
} catch (Exception e) {
log.error(e.getMessage(), e);
return 0;
}
}
/**
* 通过索引 获取list中的值
*
* @param key 键
* @param index 索引 index>=0时， 0 表头，1 第二个元素，依次类推；index<0时，-1，表尾，-2倒数第二个元素，依次类推
* @return
*/
public Object lGetIndex(String key, long index) {
try {
return redisTemplate.opsForList().index(key, index);
} catch (Exception e) {
log.error(e.getMessage(), e);
return null;
}
}
/**
* 将list放入缓存
*
* @param key 键
* @param value 值
* @return
*/
public boolean lSet(String key, Object value) {
try {
redisTemplate.opsForList().rightPush(key, value);
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 将list放入缓存
*
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public boolean lSet(String key, Object value, long time) {
try {
redisTemplate.opsForList().rightPush(key, value);
if (time > 0) {
expire(key, time);
}
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 将list放入缓存
*
* @param key 键
* @param value 值
* @return
*/
public boolean lSet(String key, List<Object> value) {
try {
redisTemplate.opsForList().rightPushAll(key, value);
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 将list放入缓存
*
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public boolean lSet(String key, List<Object> value, long time) {
try {
redisTemplate.opsForList().rightPushAll(key, value);
if (time > 0) {
expire(key, time);
}
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 根据索引修改list中的某条数据
*
* @param key 键
* @param index 索引
* @param value 值
* @return /
*/
public boolean lUpdateIndex(String key, long index, Object value) {
try {
redisTemplate.opsForList().set(key, index, value);
return true;
} catch (Exception e) {
log.error(e.getMessage(), e);
return false;
}
}
/**
* 移除N个值为value
*
* @param key 键
* @param count 移除多少个
* @param value 值
* @return 移除的个数
*/
public long lRemove(String key, long count, Object value) {
try {
return redisTemplate.opsForList().remove(key, count, value);
} catch (Exception e) {
log.error(e.getMessage(), e);
return 0;
}
}
/**
* @param prefix 前缀
* @param ids id
*/
public void delByKeys(String prefix, Set<Long> ids) {
Set<Object> keys = new HashSet<>();
for (Long id : ids) {
keys.addAll(redisTemplate.keys(new StringBuffer(prefix).append(id).toString()));
}
long count = redisTemplate.delete(keys);
// 此处提示可自行删除
log.debug("--------------------------------------------");
log.debug("成功删除缓存：" + keys.toString());
log.debug("缓存删除数量：" + count + "个");
log.debug("--------------------------------------------");
}
}

20
src/main/resources/application.properties
View File

@@ -6,3 +6,23 @@ oss.protocol=http
oss.name=smartvenue
oss.endPoint=http://oss-cn-beijing.aliyuncs.com
oss.url=https://smartvenue.oss-cn-beijing.aliyuncs.com/
#redis配置
#Redis服务器地址
spring.redis.host=127.0.0.1
#Redis服务器连接端口
spring.redis.port=6379
#Redis数据库索引（默认为0）
spring.redis.database=0
#Redis数据库密码
spring.redis.password=
#连接池最大连接数（使用负值表示没有限制）
spring.redis.jedis.pool.max-active=50
#连接池最大阻塞等待时间（使用负值表示没有限制）
spring.redis.jedis.pool.max-wait=3000
#连接池中的最大空闲连接
spring.redis.jedis.pool.max-idle=20
#连接池中的最小空闲连接
spring.redis.jedis.pool.min-idle=2
#连接超时时间（毫秒）
spring.redis.timeout=5000

2
src/main/resources/templates/source/list.html
View File

@@ -99,7 +99,7 @@
<script th:src="@{/live/js/addlive2d.js}"></script>
<script type="text/javascript">
function navChange(page){
var name = $('#name').attr("value");
var name = $('#name').val();
var category = $('#category').val();
var current = $('#current').text();
var pageNum = parseInt(current) + page;