7、redis之使用spring集成commons-pool来操作常见数据类型

时间:2021-07-11 00:40:08

环境的搭建参见:http://www.cnblogs.com/yangzhilong/p/4729857.html

下面直接贴具体的测试代码:

 package com.yzl;

 import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map; import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.util.SerializationUtils; import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool; /**
* RedisApp的测试类
*
* @author yangzhilong
* @see [相关类/方法](可选)
* @since [产品/模块版本] (可选)
*/
public class RedisApp4Test {
private JedisPool pool;
private ApplicationContext app;
private Jedis jedis; @Before
public void before(){
app = new ClassPathXmlApplicationContext("spring-config.xml");
pool = app.getBean(JedisPool.class);
jedis = pool.getResource();
} @Test
public void test(){
//string
operationString(); //map
operationMap(); //list
operationList(); //自定义对象
operationMyObject();
} /**
*
* 功能描述: <br>
* 操作String
*
* @see [相关类/方法](可选)
* @since [产品/模块版本](可选)
*/
private void operationString(){
jedis.set("name", "hello");
jedis.append("name", " redis");
String value = jedis.get("name");
System.out.println("get value :" + value);
} /**
*
* 功能描述: <br>
* 操作Map
*
* @see [相关类/方法](可选)
* @since [产品/模块版本](可选)
*/
private void operationMap(){
Map<String, String> map = new HashMap<String, String>();
map.put("key1", "value1");
map.put("key2", "value2");
jedis.hmset("map", map);
//这里可以一次读取多个key
List<String> result = jedis.hmget("map", "key1" , "key2");
for(String str : result){
System.out.println("get value from map : " + str);
}
} /**
*
* 功能描述: <br>
* 操作List
*
* @see [相关类/方法](可选)
* @since [产品/模块版本](可选)
*/
private void operationList(){
List<String> result = Arrays.asList("item1","item2");
for(String str : result){
jedis.lpush("list", str);
}
jedis.lpush("list", "value3");
result = jedis.lrange("list", 0, -1);
for(String str : result){
System.out.println("get value from list : " + str);
}
jedis.lpop("list");
for(String str : result){
System.out.println("get value from list again : " + str);
}
} /**
*
* 功能描述: <br>
* 操作自定义对象
*
* @see [相关类/方法](可选)
* @since [产品/模块版本](可选)
*/
private void operationMyObject(){
Entity entity = new Entity();
entity.setName("test");
entity.setAge(20);
//保存
jedis.set("obj".getBytes(), SerializationUtils.serialize(entity));
//读取
byte[] bytes = jedis.get("obj".getBytes());
Entity ret = (Entity)SerializationUtils.deserialize(bytes);
System.out.println("读取到自定义的类的属性name的值为:" + ret.getName());
} @After
public void after(){
//释放连接
pool.returnResourceObject(jedis);
System.out.println("end~~~");
}
}

运行的结果:

 get value :hello redis
get value from map : value1
get value from map : value2
get value from list : value3
get value from list : item2
get value from list : item1
get value from list again : value3
get value from list again : item2
get value from list again : item1
读取到自定义的类的属性name的值为:test
end~~~

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