Spring Data redis序列化的比较

redis虽然提供了对list set hash等数据类型的支持，但是没有提供对POJO对象的支持，底层都是把对象序列化后再以字符串的方式存储的。因此，Spring data提供了若干个Serializer，主要包括：

• JacksonJsonRedisSerializer
• JdkSerializationRedisSerializer
• OxmSerializer

本文主要对比了对象的JacksonJsonRedisSerializer与对象的JdkSerializationSerializer、字符串的StringRedisSerializer与字符串的JdkSerializationSerializer

一、测试代码如下

1. package com.dream.yuxiaor.utils;
3. import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
4. import org.springframework.data.redis.core.RedisTemplate;
5. import org.springframework.data.redis.serializer.JacksonJsonRedisSerializer;
6. import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;
7. import org.springframework.data.redis.serializer.StringRedisSerializer;
8. import redis.clients.jedis.JedisPoolConfig;
10. import java.io.Serializable;
12. /**
13. * Created by dev on 17-10-14.
14. */
15. public class RedisTest {
16. private static RedisTemplate redisTemplate;
17. static {
18. JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
19. jedisPoolConfig.setMaxIdle(300);
20. jedisPoolConfig.setMaxTotal(600);
21. jedisPoolConfig.setMaxWaitMillis(1000);
22. jedisPoolConfig.setTestOnBorrow(true);
24. JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory();
25. jedisConnectionFactory.setPoolConfig(jedisPoolConfig);
26. jedisConnectionFactory.setHostName(“192.168.3.36”);
27. jedisConnectionFactory.setPassword(null);
28. jedisConnectionFactory.setPort(6379);
29. jedisConnectionFactory.setTimeout(2000);
30. jedisConnectionFactory.setDatabase(0);
31. jedisConnectionFactory.afterPropertiesSet();
32. redisTemplate = new RedisTemplate();
33. redisTemplate.setConnectionFactory(jedisConnectionFactory);
34. StringRedisSerializer stringSerializer = new StringRedisSerializer();
35. redisTemplate.setKeySerializer(stringSerializer);
36. redisTemplate.setHashKeySerializer(stringSerializer);
37. }
39. public static void main(String[] args) {
40. writeObjectJdkSerializationRedisSerializer();
41. writeObjectJacksonJsonRedisSerializer();
42. writeStringJdkSerializationRedisSerializer();
43. writeStringStringRedisSerializer();
44. }
46. public static void writeObjectJdkSerializationRedisSerializer(){
47. JdkSerializationRedisSerializer jdkSerializationRedisSerializer = new JdkSerializationRedisSerializer();
49. redisTemplate.setValueSerializer(jdkSerializationRedisSerializer);
50. redisTemplate.setHashValueSerializer(jdkSerializationRedisSerializer);
51. redisTemplate.afterPropertiesSet();
53. String key = “test1:”;
54. long start = System.currentTimeMillis();
55. UserObject userObject;
56. for(int i=0;i<100000;i++){
57. userObject = new UserObject();
58. userObject.setAge(i);
59. userObject.setUserName(“name”+i);
60. redisTemplate.opsForValue().set(key+i,userObject);
61. redisTemplate.opsForValue().get(key+i);
62. }
63. System.out.println(“100000次读写 writeObjectJdkSerializationRedisSerializer test times(毫秒):”+(System.currentTimeMillis()-start));
64. }
66. public static void writeObjectJacksonJsonRedisSerializer(){
68. JacksonJsonRedisSerializer jacksonJsonRedisSerializer = new JacksonJsonRedisSerializer(UserObject.class);
70. redisTemplate.setValueSerializer(jacksonJsonRedisSerializer);
71. redisTemplate.setHashValueSerializer(jacksonJsonRedisSerializer);
72. redisTemplate.afterPropertiesSet();
75. String key = “test2:”;
76. long start = System.currentTimeMillis();
77. UserObject userObject;
78. for(int i=0;i<100000;i++){
79. userObject = new UserObject();
80. userObject.setAge(i);
81. userObject.setUserName(“name”+i);
82. redisTemplate.opsForValue().set(key+i,userObject);
83. redisTemplate.opsForValue().get(key+i);
84. }
85. System.out.println(“100000次读写 writeObjectJacksonJsonRedisSerializer test times(毫秒):”+(System.currentTimeMillis()-start));
86. }
88. public static void writeStringJdkSerializationRedisSerializer(){
89. JdkSerializationRedisSerializer jdkSerializationRedisSerializer = new JdkSerializationRedisSerializer();
91. redisTemplate.setValueSerializer(jdkSerializationRedisSerializer);
92. redisTemplate.setHashValueSerializer(jdkSerializationRedisSerializer);
93. redisTemplate.afterPropertiesSet();
95. String key = “test3:”;
96. long start = System.currentTimeMillis();
97. for(int i=0;i<100000;i++){
98. redisTemplate.opsForValue().set(key+i,“{\”userName\”:\”name”+i+“\”,\”age\”:”+i+“}”);
99. redisTemplate.opsForValue().get(key+i);
100. }
101. System.out.println(“100000次读写 writeStringJdkSerializationRedisSerializer test times(毫秒):”+(System.currentTimeMillis()-start));
102. }
104. public static void writeStringStringRedisSerializer(){
106. StringRedisSerializer stringSerializer = new StringRedisSerializer();
108. redisTemplate.setValueSerializer(stringSerializer);
109. redisTemplate.setHashValueSerializer(stringSerializer);
110. redisTemplate.afterPropertiesSet();
113. String key = “test4:”;
114. long start = System.currentTimeMillis();
115. for(int i=0;i<100000;i++){
116. redisTemplate.opsForValue().set(key+i,“{\”userName\”:\”name”+i+“\”,\”age\”:”+i+“}”);
117. redisTemplate.opsForValue().get(key+i);
118. }
119. System.out.println(“100000次读写 writeStringStringRedisSerializer test times(毫秒):”+(System.currentTimeMillis()-start));
120. }
122. public static class UserObject implements Serializable {
123. private String userName;
125. private int age;
127. public String getUserName() {
128. return userName;
129. }
131. public void setUserName(String userName) {
132. this.userName = userName;
133. }
135. public int getAge() {
136. return age;
137. }
139. public void setAge(int age) {
140. this.age = age;
141. }
142. }
143. }

二、执行结果比较

1、存储长度比较

1. 127.0.0.1:6379> strlen test1:1
2. (integer) 115
3. 127.0.0.1:6379> get test1:1
4. “\xac\xed\x00\x05sr\x00,com.dream.yuxiaor.utils.RedisTest$UserObject*\xf0\xb8\x84\xf3\r{\xc3\x02\x00\x02I\x00\x03ageL\x00\buserNamet\x00\x12Ljava/lang/String;xp\x00\x00\x00\x01t\x00\x05name1”
6. 127.0.0.1:6379> strlen test2:1
7. (integer) 28
8. 127.0.0.1:6379> get test2:1
9. “{\”userName\“:\”name1\“,\”age\“:1}”
11. 127.0.0.1:6379> strlen test3:1
12. (integer) 35
13. 127.0.0.1:6379> get test3:1
14. “\xac\xed\x00\x05t\x00\x1c{\”userName\“:\”name1\“,\”age\“:1}”
16. 127.0.0.1:6379> strlen test4:1
17. (integer) 28
18. 127.0.0.1:6379> get test4:1
19. “{\”userName\“:\”name1\“,\”age\“:1}”

2、执行时间比较，跑了三次

第一次：

100000次读写 writeObjectJdkSerializationRedisSerializer test times(毫秒):40441

100000次读写 writeObjectJacksonJsonRedisSerializer test times(毫秒):35915

100000次读写 writeStringJdkSerializationRedisSerializer test times(毫秒):35576

100000次读写 writeStringStringRedisSerializer test times(毫秒):35715

第二次：

100000次读写 writeObjectJdkSerializationRedisSerializer test times(毫秒):39137
100000次读写 writeObjectJacksonJsonRedisSerializer test times(毫秒):34792
100000次读写 writeStringJdkSerializationRedisSerializer test times(毫秒):34543
100000次读写 writeStringStringRedisSerializer test times(毫秒):33807

第三次：

100000次读写 writeObjectJdkSerializationRedisSerializer test times(毫秒):38700
100000次读写 writeObjectJacksonJsonRedisSerializer test times(毫秒):34555
100000次读写 writeStringJdkSerializationRedisSerializer test times(毫秒):34583
100000次读写 writeStringStringRedisSerializer test times(毫秒):34739