Spring Boot 集成 RedisTemplate

原创转载请注明出处：https://www.cnblogs.com/agilestyle/p/13199558.html

 

前置条件

Spring Boot 集成 TkMyBatis  整合完毕

 

Project Directory

 

Maven Dependency

...    
    <!--redis-->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>
...

 

application.properties

...    
spring.redis.host=localhost
spring.redis.port=6379
spring.redis.database=0
spring.redis.password=
spring.redis.timeout=2000
spring.redis.pool.max-active=10
spring.redis.pool.max-wait=1000
spring.redis.pool.max-idle=10
spring.redis.pool.min-idle=5
spring.redis.pool.num-tests-per-eviction-run=1024
spring.redis.pool.time-between-eviction-runs-millis=30000
spring.redis.pool.min-evictable-idle-time-millis=60000
spring.redis.pool.soft-min-evictable-idle-time-millis=10000
spring.redis.pool.test-on-borrow=true
spring.redis.pool.test-while-idle=true
spring.redis.pool.block-when-exhausted=false
...

 

RedisTemplate CRUD

RedisConfiguration.java

 1 package org.fool.redis.config;
 2 
 3 import org.springframework.context.annotation.Bean;
 4 import org.springframework.context.annotation.Configuration;
 5 import org.springframework.data.redis.connection.RedisConnectionFactory;
 6 import org.springframework.data.redis.core.RedisTemplate;
 7 import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
 8 import org.springframework.data.redis.serializer.StringRedisSerializer;
 9 
10 @Configuration
11 public class RedisConfiguration {
12     @Bean
13     public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
14         RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
15         redisTemplate.setConnectionFactory(redisConnectionFactory);
16         GenericJackson2JsonRedisSerializer jackson2JsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
17         redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
18         redisTemplate.setKeySerializer(new StringRedisSerializer());
19         redisTemplate.setHashKeySerializer(new StringRedisSerializer());
20         redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
21         redisTemplate.afterPropertiesSet();
22         return redisTemplate;
23     }
24 }

 

UserService.java

  1 package org.fool.redis.service;
  2 
  3 import com.github.pagehelper.PageHelper;
  4 import com.github.pagehelper.PageInfo;
  5 import lombok.extern.slf4j.Slf4j;
  6 import org.fool.redis.mapper.UserMapper;
  7 import org.fool.redis.model.User;
  8 import org.springframework.beans.factory.annotation.Autowired;
  9 import org.springframework.data.redis.core.RedisTemplate;
 10 import org.springframework.data.redis.core.ValueOperations;
 11 import org.springframework.stereotype.Service;
 12 import tk.mybatis.mapper.entity.Example;
 13 
 14 import java.util.Arrays;
 15 import java.util.List;
 16 
 17 @Service
 18 @Slf4j
 19 public class UserService {
 20     public static final String CACHE_KEY_USER = "user:";
 21 
 22     @Autowired
 23     private UserMapper userMapper;
 24 
 25     @Autowired
 26     private RedisTemplate redisTemplate;
 27 
 28     public void createUser(User user) {
 29         userMapper.insertSelective(user);
 30 
 31         String key = CACHE_KEY_USER + user.getId();
 32         user = this.userMapper.selectByPrimaryKey(user.getId());
 33         redisTemplate.opsForValue().set(key, user);
 34     }
 35 
 36     public void updateUser(User user) {
 37         userMapper.updateByPrimaryKeySelective(user);
 38 
 39         String key = CACHE_KEY_USER + user.getId();
 40         user = this.userMapper.selectByPrimaryKey(user.getId());
 41         redisTemplate.opsForValue().set(key, user);
 42     }
 43 
 44     public User findUserById(Integer id) {
 45         ValueOperations<String, User> operations = redisTemplate.opsForValue();
 46         String key = CACHE_KEY_USER + id;
 47         User user = operations.get(key);
 48 
 49         if (user == null) {
 50             user = userMapper.selectByPrimaryKey(id);
 51             operations.set(key, user);
 52         }
 53 
 54         return user;
 55     }
 56 
 57     public void deleteUser(int id) {
 58         userMapper.deleteByPrimaryKey(id);
 59         String key = CACHE_KEY_USER + id;
 60         redisTemplate.delete(key);
 61     }
 62 
 63     public void findUser() {
 64         log.info("select by primary key: where id = 100");
 65         User result = userMapper.selectByPrimaryKey(100);
 66         log.info(result.toString());
 67 
 68         log.info("select by: where sex = 1");
 69         User user1 = new User();
 70         user1.setSex((byte) 1);
 71         List<User> resultList = userMapper.select(user1);
 72         log.info("sex=1 nums: {}", resultList.size());
 73 
 74         log.info("select by: where username = ? and password = ?");
 75         User user2 = new User();
 76         user2.setUsername("update100");
 77         user2.setPassword("update100");
 78         User user = userMapper.selectOne(user2);
 79         log.info("user: {}", user);
 80     }
 81 
 82     public void selectByExample() {
 83         log.info("select by example: where username = ? and password = ?");
 84         Example example = new Example(User.class);
 85         Example.Criteria criteria = example.createCriteria();
 86         criteria.andEqualTo("username", "update100");
 87         criteria.andEqualTo("password", "update100");
 88         List<User> resultList = userMapper.selectByExample(example);
 89         log.info("result list: {}", resultList);
 90     }
 91 
 92     public void selectByExampleAndLike() {
 93         log.info("select by example with andLike: where username like = ?");
 94         Example example = new Example(User.class);
 95         Example.Criteria criteria = example.createCriteria();
 96         criteria.andLike("username", "%update%");
 97         List<User> resultList = userMapper.selectByExample(example);
 98         log.info("result list: {}", resultList);
 99     }
100 
101     public void selectByExampleOrderBy() {
102         log.info("select by example with order by: where username like = ? order by id desc");
103         Example example = new Example(User.class);
104         example.setOrderByClause("username desc");
105         Example.Criteria criteria = example.createCriteria();
106         criteria.andLike("username", "%user%");
107         List<User> resultList = userMapper.selectByExample(example);
108         log.info("result list: {}", resultList);
109     }
110 
111     public void selectByExampleIn() {
112         log.info("select by example with in: where id in (100, 101)");
113         Example example = new Example(User.class);
114         Example.Criteria criteria = example.createCriteria();
115         criteria.andIn("id", Arrays.asList(100, 101));
116         List<User> resultList = userMapper.selectByExample(example);
117         log.info("result list: {}", resultList);
118     }
119 
120     public void selectByPageInfo(int pageNo, int pageSize) {
121         log.info("select by PageInfo: limit ?, ?");
122         PageHelper.startPage(pageNo, pageSize);
123         List<User> userList = userMapper.selectAll();
124         PageInfo<User> pageInfo = new PageInfo<>(userList);
125         long totalPage = pageInfo.getPages();
126         long totalSize = pageInfo.getTotal();
127         log.info("total page: {}, total size: {}, result list: {}", totalPage, totalSize, userList);
128     }
129 }

 

Test

 1 package org.fool.redis.test;
 2 
 3 import org.fool.redis.Application;
 4 import org.fool.redis.model.User;
 5 import org.fool.redis.service.UserService;
 6 import org.junit.Assert;
 7 import org.junit.jupiter.api.Test;
 8 import org.springframework.beans.factory.annotation.Autowired;
 9 import org.springframework.boot.test.context.SpringBootTest;
10 
11 import java.util.Random;
12 
13 @SpringBootTest(classes = Application.class)
14 public class RedisTemplateTest {
15     @Autowired
16     private UserService userService;
17 
18     @Test
19     public void testCreate() {
20         User user = new User();
21         user.setId(1001);
22         user.setUsername("hello");
23         user.setPassword("world");
24         user.setSex((byte) new Random().nextInt(2));
25         userService.createUser(user);
26     }
27 
28     @Test
29     public void testUpdate() {
30         User user = new User();
31         user.setId(1001);
32         user.setPassword("helloworld");
33         userService.updateUser(user);
34     }
35 
36     @Test
37     public void testSelect() {
38         User result = userService.findUserById(1001);
39         Assert.assertEquals("hello", result.getUsername());
40     }
41 
42     @Test
43     public void testDelete() {
44         userService.deleteUser(1001);
45     }
46 }

 

posted @ 2020-06-27 19:46  李白与酒  阅读(499)  评论(0)  编辑  收藏  举报