Redis进阶之二：StringRedisTemplate的opsForValue Api梳理和应用_stringredistemplate opsforvalue

/*
 * Copyright 2011-2018 the original author or authors.
 *
 * 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 org.springframework.data.redis.core;

import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

import org.springframework.lang.Nullable;

/**
 * Redis operations for simple (or in Redis terminology 'string') values.
 *
 * @author Costin Leau
 * @author Christoph Strobl
 * @author Mark Paluch
 */
public interface ValueOperations<K, V> {
   

	/**
	 * Set {@code value} for {@code key}.
	 * 新增一个字符串类型的值,key是键，value是值。
	 * @param key must not be {@literal null}.
	 * @param value
	 * @see <a href="http://redis.io/commands/set">Redis Documentation: SET</a>
	 */
	void set(K key, V value
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