andycom · andycom · Sep 18, 2022 · Sep 4, 2022 · Sep 18, 2022 · Sep 18, 2022
diff --git a/SpringBoot-MyBatis-Advances/pom.xml b/SpringBoot-MyBatis-Advances/pom.xml
@@ -37,6 +37,20 @@
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.apache.maven.doxia</groupId>
+            <artifactId>doxia-site-renderer</artifactId>
+            <version>1.11.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-cache</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-redis</artifactId>
+            <version>2.3.9.RELEASE</version>
+        </dependency>
     </dependencies>
     <build>
         <plugins>
@@ -51,6 +65,16 @@
                     <verbose>true</verbose>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-site-plugin</artifactId>
+                <version>3.7.1</version>
+            </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-project-info-reports-plugin</artifactId>
+                <version>3.0.0</version>
+            </plugin>
         </plugins>
     </build>
 </project>
diff --git a/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/Application_Mybatis.java b/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/Application_Mybatis.java
@@ -2,6 +2,7 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cache.annotation.EnableCaching;
 import springfox.documentation.swagger2.annotations.EnableSwagger2;
 
 //TODO
@@ -14,6 +15,7 @@
  */
 @SpringBootApplication
 @EnableSwagger2
+@EnableCaching
 public class Application_Mybatis {
 
     public static void main(String[] args) {

diff --git a/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/config/RedisCacheConfig.java b/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/config/RedisCacheConfig.java
@@ -0,0 +1,127 @@
+package com.fancv.config;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.cache.CacheManager;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.cache.interceptor.KeyGenerator;
+import org.springframework.cache.interceptor.SimpleKeyGenerator;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.redis.cache.RedisCacheConfiguration;
+import org.springframework.data.redis.cache.RedisCacheManager;
+import org.springframework.data.redis.connection.RedisConnectionFactory;
+import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
+import org.springframework.data.redis.serializer.RedisSerializationContext;
+import org.springframework.data.redis.serializer.StringRedisSerializer;
+
+import java.time.Duration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+@Configuration
+@EnableCaching
+public class RedisCacheConfig {
+
+    @Value("${cache.default.expire-time:2000}")
+    private int defaultExpireTime;
+    @Value("${cache.user.expire-time:1000}")
+    private int userCacheExpireTime;
+    @Value("${cache.user.name:cache}")
+    private String userCacheName;
+
+   /* *//**
+     * Redis缓存管理器
+     *
+     * @param lettuceConnectionFactory
+     * @return
+     *//*
+    @Bean
+    public CacheManager cacheManager(RedisConnectionFactory lettuceConnectionFactory) {
+        RedisCacheConfiguration defaultCacheConfig = RedisCacheConfiguration.defaultCacheConfig();
+        // 设置缓存管理器管理的缓存的默认过期时间
+        defaultCacheConfig = defaultCacheConfig.entryTtl(Duration.ofSeconds(defaultExpireTime))
+                // 设置 key为string序列化
+                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
+                // 设置value为json序列化
+                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()))
+                // 不缓存空值
+                .disableCachingNullValues();
+
+        Set<String> cacheNames = new HashSet<>();
+        cacheNames.add(userCacheName);
+
+        // 对每个缓存空间应用不同的配置
+        Map<String, RedisCacheConfiguration> configMap = new HashMap<>();
+        configMap.put(userCacheName, defaultCacheConfig.entryTtl(Duration.ofSeconds(userCacheExpireTime)));
+        configMap.put("users", defaultCacheConfig.entryTtl(Duration.ofSeconds(400)));
+
+        RedisCacheManager cacheManager = RedisCacheManager.builder(lettuceConnectionFactory)
+                .cacheDefaults(defaultCacheConfig)
+                .initialCacheNames(cacheNames)
+                .withInitialCacheConfigurations(configMap)
+                .build();
+        return cacheManager;
+    }*/
+
+
+  /*  *
+     * 缓存管理器
+     *
+     * @param lettuceConnectionFactory
+     * @return*/
+
+    @Bean
+    public CacheManager cacheManager(RedisConnectionFactory lettuceConnectionFactory) {
+        RedisCacheConfiguration defaultCacheConfig = RedisCacheConfiguration.defaultCacheConfig();
+        // 设置缓存管理器管理的缓存的默认过期时间
+        defaultCacheConfig = defaultCacheConfig.entryTtl(Duration.ofSeconds(defaultExpireTime))
+                // 设置 key为string序列化
+                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
+                // 设置value为json序列化
+                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()))
+                // 不缓存空值
+                .disableCachingNullValues();
+
+        Set<String> cacheNames = new HashSet<>();
+        cacheNames.add(userCacheName);
+
+        // 对每个缓存空间应用不同的配置
+        Map<String, RedisCacheConfiguration> configMap = new HashMap<>();
+        configMap.put(userCacheName, defaultCacheConfig.entryTtl(Duration.ofSeconds(userCacheExpireTime)));
+        configMap.put("users", defaultCacheConfig.entryTtl(Duration.ofSeconds(400)));
+
+        RedisCacheManager cacheManager = RedisCacheManager.builder(lettuceConnectionFactory)
+                .cacheDefaults(defaultCacheConfig)
+                .initialCacheNames(cacheNames)
+                .withInitialCacheConfigurations(configMap)
+                .build();
+        return cacheManager;
+    }
+    /**
+     * 自定义缓存的redis的KeyGenerator【key生成策略】
+     * 注意: 该方法只是声明了key的生成策略,需在@Cacheable注解中通过keyGenerator属性指定具体的key生成策略
+     * 可以根据业务情况，配置多个生成策略
+     * 如: @Cacheable(value = "key", keyGenerator = "cacheKeyGenerator")
+     */
+    @Bean
+    public KeyGenerator keyGenerator() {
+        /**
+         * target: 类
+         * method: 方法
+         * params: 方法参数
+         */
+        return (target, method, params) -> {
+            //获取代理对象的最终目标对象
+            StringBuilder sb = new StringBuilder();
+            sb.append(target.getClass().getSimpleName()).append(":");
+            sb.append(method.getName()).append(":");
+            //调用SimpleKey的key生成器
+            Object key = SimpleKeyGenerator.generateKey(params);
+            return sb.append(key);
+        };
+    }
+
+
+}
diff --git a/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/controller/DemoController.java b/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/controller/DemoController.java
@@ -2,7 +2,10 @@
 
 import com.fancv.dao.User;
 import com.fancv.mapper.MyUserMapper;
+import com.fancv.service.UserService;
+import io.swagger.annotations.Api;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.accept.MappingMediaTypeFileExtensionResolver;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
@@ -13,14 +16,22 @@
 
 @RestController
 @RequestMapping("mybatis")
+@Api(value = "User")
 public class DemoController {
+
     @Autowired
     MyUserMapper userMapper;
-    @GetMapping("insert")
-    public String batchInster(){
 
-        User user = userMapper.selectByPrimaryKey(1);
-       return user.getName();
+    @Autowired
+    UserService userService;
+
+
+    @GetMapping("user_info")
+    public User getUserInfo(Integer id){
+
+        User user = userService.getUerInfo(id);
+        User user1 = userService.getUerInfoWithoutKey();
+        return user;
     }
 
     @GetMapping("replace")
@@ -48,6 +59,6 @@ public int merge(){
         a.setCreateTime(new Date());
         a.setName("dfa");
         a.setPassword("124321");
-        return userMapper.mergeinfo(a);
+        return 1;
     }
 }
diff --git a/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/dao/User.java b/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/dao/User.java
@@ -1,10 +1,9 @@
 package com.fancv.dao;
 
-import org.springframework.stereotype.Component;
-
+import java.io.Serializable;
 import java.util.Date;
 
-public class User {
+public class User implements Serializable {
     private Integer id;
 
     private String name;

diff --git a/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/service/UserService.java b/SpringBoot-MyBatis-Advances/src/main/java/com/fancv/service/UserService.java
@@ -0,0 +1,36 @@
+package com.fancv.service;
+
+import com.fancv.dao.User;
+import com.fancv.mapper.MyUserMapper;
+import lombok.extern.log4j.Log4j2;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheConfig;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.cache.annotation.EnableCaching;
+import org.springframework.stereotype.Service;
+
+@Service
+@Log4j2
+@EnableCaching
+@CacheConfig(cacheNames = "users")
+public class UserService {
+
+    @Autowired
+    MyUserMapper userMapper;
+
+    /**
+     * @Cacheable(cacheNames = "users", condition = "#id > 0", sync = true, keyGenerator = "keyGenerator",key = "'user-' + #id")
+     *  Both 'key' and 'keyGenerator' attributes have been set.  不能同时使用
+     * @param id
+     * @return
+     */
+    @Cacheable(cacheNames = "users", condition = "#id > 0", sync = true, keyGenerator = "keyGenerator")
+    public User getUerInfo(Integer id) {
+        return userMapper.selectByPrimaryKey(id);
+    }
+
+    @Cacheable(cacheNames = "ca", sync = true, keyGenerator = "keyGenerator")
+    public User getUerInfoWithoutKey() {
+        return userMapper.selectByPrimaryKey(2);
+    }
+}
diff --git a/SpringBoot-MyBatis-Advances/src/main/resources/application.yaml b/SpringBoot-MyBatis-Advances/src/main/resources/application.yaml
@@ -1,4 +1,13 @@
 spring:
+  cache:
+    redis:
+      key-prefix: "sp:"
+      time-to-live: 800
+    type: redis
+  redis:
+    port: 6379
+    host: 127.0.0.1
+    database: 10
   datasource:
     username: admin
     password: hta@123
@@ -35,3 +44,8 @@ mybatis:
     mapper-locations: classpath:mappers/*Mapper.xml
     type-aliases-package: com.fancv.dao
 
+logging:
+  level:
+    com.fancv.mapper: debug
+
+