spring boot整合redis實現RedisTemplate三分鐘快速入門
阿新 • • 發佈：2020-12-30
引入依賴
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency>
RedisTemplate五種資料結構的操作
- redisTemplate.opsForValue(); //操作字串
- redisTemplate.opsForHash(); //操作hash
- redisTemplate.opsForList(); //操作list
- redisTemplate.opsForSet(); //操作set
- redisTemplate.opsForZSet(); //操作有序zset
RedisTemplate方法講解
判斷key是否存在
/**
* 判斷key是否存在
*/
@GetMapping("haskey")
public boolean hasKey(String key) {
return redisTemplate.hasKey(key);
}
獲取指定的key的失效時間
/**
* 指定key的失效時間
*/
@GetMapping("expire")
public void expire(String key,long time) {
//引數一：key
//引數二：睡眠時間
//引數三：睡眠時間單位 TimeUnit.DAYS 天 TimeUnit.HOURS 小時 。。。
redisTemplate.expire(key,time,TimeUnit.MINUTES);
}
根據key獲取過期時間
/**
* 根據key獲取過期時間
*/
@GetMapping("getexpire")
public long getExpire(String key) {
Long expire = redisTemplate.getExpire(key);
return expire;
}
根據key刪除reids中快取資料
/**
* 根據key刪除reids中快取資料
*/
@GetMapping("delredisbykey")
public void delete(String key) {
redisTemplate.delete(key);
}
儲存和讀取String
/**
* 儲存和讀取String
*/
@GetMapping("stringredisdemo")
public String stringredisdemo() {
//設定過期時間為1分鐘
redisTemplate.opsForValue().set("key1","value1",1,TimeUnit.MINUTES);
redisTemplate.opsForValue().set("key2","value2");
redisTemplate.opsForValue().set("key3","value3");
//讀取redis資料
String result1 = redisTemplate.opsForValue().get("key1").toString();
String result2 = redisTemplate.opsForValue().get("key2").toString();
String result3 = redisTemplate.opsForValue().get("key3").toString();
System.out.println("快取結果為：result：" + result1 + " " + result2 + " " + result3);
return "快取結果為：result：" + result1 + " " + result2 + " " + result3;
}
儲存和讀取list
/**
* 儲存和讀取list
*/
@GetMapping("listredisdemo")
public String listredisdemo() {
List<String> list1 = new ArrayList<>();
list1.add("a1");
list1.add("a2");
list1.add("a3");
List<String> list2 = new ArrayList<>();
list2.add("b1");
list2.add("b2");
list2.add("b3");
redisTemplate.opsForList().leftPush("listkey1",list1);
redisTemplate.opsForList().rightPush("listkey2",list2);
List<String> resultList1 = (List<String>) redisTemplate.opsForList().leftPop("listkey1");
List<String> resultList2 = (List<String>) redisTemplate.opsForList().rightPop("listkey2");
System.out.println("resultList1:" + resultList1);
System.out.println("resultList2:" + resultList2);
return "成功";
}
Hash結構，儲存和讀取map
/**
* Hash結構，儲存和讀取map
*/
@GetMapping("mapredisdemo")
public String mapredisdemo() {
Map<String,String> map = new HashMap<>();
map.put("key1","value1");
map.put("key2","value2");
map.put("key3","value3");
map.put("key4","value4");
map.put("key5","value5");
redisTemplate.opsForHash().putAll("map1",map);
Map<String,String> resultMap = redisTemplate.opsForHash().entries("map1");
List<String> reslutMapList = redisTemplate.opsForHash().values("map1");
Set<String> resultMapSet = redisTemplate.opsForHash().keys("map1");
String value = (String) redisTemplate.opsForHash().get("map1","key1");
System.out.println("value:" + value);
System.out.println("resultMapSet:" + resultMapSet);
System.out.println("resultMap:" + resultMap);
System.out.println("resulreslutMapListtMap:" + reslutMapList);
return "成功";
}
儲存和讀取Set
/**
* 儲存和讀取Set
*/
@GetMapping("setredisdemo")
public String getredisdemo() {
SetOperations<String,String> set = redisTemplate.opsForSet();
set.add("key1","value1");
set.add("key1","value2");
set.add("key1","value3");
Set<String> resultSet = redisTemplate.opsForSet().members("key1");
System.out.println("resultSet:" + resultSet);
return "resultSet:" + resultSet;
}
儲存和讀取zset
/**
* 儲存和讀取zset
*/
@GetMapping("zsetredisdemo")
public String zsetredisdemo() {
ZSetOperations.TypedTuple<Object> objectTypedTuple1 = new DefaultTypedTuple<>("zset-5",9.6);
ZSetOperations.TypedTuple<Object> objectTypedTuple2 = new DefaultTypedTuple<>("zset-6",9.9);
Set<ZSetOperations.TypedTuple<Object>> tuples = new HashSet<>();
tuples.add(objectTypedTuple1);
tuples.add(objectTypedTuple2);
System.out.println(redisTemplate.opsForZSet().add("zset1",tuples));
System.out.println(redisTemplate.opsForZSet().range("zset1",-1));
return "成功";
}
完整示例程式碼
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.DefaultTypedTuple;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.SetOperations;
import org.springframework.data.redis.core.ZSetOperations;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.*;
import java.util.concurrent.TimeUnit;
@RestController
public class ReidsDemo {
@Autowired
RedisTemplate redisTemplate;
/**
* 指定key的失效時間
*/
@GetMapping("expire")
public void expire(String key,TimeUnit.MINUTES);
}
/**
* 根據key獲取過期時間
*/
@GetMapping("getexpire")
public long getExpire(String key) {
Long expire = redisTemplate.getExpire(key);
return expire;
}
/**
* 判斷key是否存在
*/
@GetMapping("haskey")
public boolean hasKey(String key) {
return redisTemplate.hasKey(key);
}
/**
* 根據key刪除reids中快取資料
*/
@GetMapping("delredisbykey")
public void delete(String key) {
redisTemplate.delete(key);
}
/**
* 儲存和讀取String
*/
@GetMapping("stringredisdemo")
public String stringredisdemo() {
//設定過期時間為1分鐘
redisTemplate.opsForValue().set("key1","value3");
//讀取redis資料
String result1 = redisTemplate.opsForValue().get("key1").toString();
String result2 = redisTemplate.opsForValue().get("key2").toString();
String result3 = redisTemplate.opsForValue().get("key3").toString();
System.out.println("快取結果為：result：" + result1 + " " + result2 + " " + result3);
return "快取結果為：result：" + result1 + " " + result2 + " " + result3;
}
/**
* 儲存和讀取list
*/
@GetMapping("listredisdemo")
public String listredisdemo() {
List<String> list1 = new ArrayList<>();
list1.add("a1");
list1.add("a2");
list1.add("a3");
List<String> list2 = new ArrayList<>();
list2.add("b1");
list2.add("b2");
list2.add("b3");
redisTemplate.opsForList().leftPush("listkey1",list2);
List<String> resultList1 = (List<String>) redisTemplate.opsForList().leftPop("listkey1");
List<String> resultList2 = (List<String>) redisTemplate.opsForList().rightPop("listkey2");
System.out.println("resultList1:" + resultList1);
System.out.println("resultList2:" + resultList2);
return "成功";
}
/**
* Hash結構，儲存和讀取map
*/
@GetMapping("mapredisdemo")
public String mapredisdemo() {
Map<String,"value3");
redisTemplate.opsForHash().putAll("map1","key1");
System.out.println("value:" + value);
System.out.println("resultMapSet:" + resultMapSet);
System.out.println("resultMap:" + resultMap);
System.out.println("resulreslutMapListtMap:" + reslutMapList);
return "成功";
}
/**
* 儲存和讀取Set
*/
@GetMapping("setredisdemo")
public String getredisdemo() {
SetOperations<String,"value3");
Set<String> resultSet = redisTemplate.opsForSet().members("key1");
System.out.println("resultSet:" + resultSet);
return "resultSet:" + resultSet;
}
/**
* 儲存和讀取zset
*/
@GetMapping("zsetredisdemo")
public String zsetredisdemo() {
ZSetOperations.TypedTuple<Object> objectTypedTuple1 = new DefaultTypedTuple<>("zset-5",-1));
return "成功";
}
}
序列化
直接貼上在專案中即可
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
/*
*序列化
*/
@Configuration
public class MyRedisConfig {
@Bean(name = "redisTemplate")
public RedisTemplate<String,Object> redisTemplate(RedisConnectionFactory redisConnectionFactory){
RedisTemplate<String,Object> redisTemplate = new RedisTemplate<>();
//參照StringRedisTemplate內部實現指定序列化器
redisTemplate.setConnectionFactory(redisConnectionFactory);
redisTemplate.setKeySerializer(keySerializer());
redisTemplate.setHashKeySerializer(keySerializer());
redisTemplate.setValueSerializer(valueSerializer());
redisTemplate.setHashValueSerializer(valueSerializer());
return redisTemplate;
}
private RedisSerializer<String> keySerializer(){
return new StringRedisSerializer();
}
//使用Jackson序列化器
private RedisSerializer<Object> valueSerializer(){
return new GenericJackson2JsonRedisSerializer();
}
}
到此這篇關於spring boot整合redis實現RedisTemplate三分鐘快速入門的文章就介紹到這了,更多相關springboot RedisTemplate入門內容請搜尋我們以前的文章或繼續瀏覽下面的相關文章希望大家以後多多支援我們！