spring 缓存

先上pom

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>spring-about</groupId>
  <artifactId>spring-about</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>spring-about Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <java.version>1.8</java.version>
    <!-- spring版本号 -->
    <spring.version>3.1.1.RELEASE</spring.version>
    <!-- log4j日志文件管理包版本 -->
    <slf4j.version>1.6.1</slf4j.version>
    <log4j.version> 1.2.17</log4j.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
      <exclusions>
        <exclusion>
          <groupId>commons-logging</groupId>
          <artifactId>commons-logging</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- 数据库驱动包 -->
    <!-- mysql-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.48</version>
    </dependency>
    <!-- 阿里巴巴数据源包 -->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.1.20</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.codehaus.jackson/jackson-mapper-asl -->
    <dependency>
      <groupId>org.codehaus.jackson</groupId>
      <artifactId>jackson-mapper-asl</artifactId>
      <version>1.9.12</version>
    </dependency>
    <dependency>
      <groupId>cglib</groupId>
      <artifactId>cglib</artifactId>
      <version>2.2.2</version>
    </dependency>
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.10</version>
    </dependency>
      <dependency>
          <groupId>net.sf.ehcache</groupId>
          <artifactId>ehcache-core</artifactId>
          <version>2.6.6</version>
      </dependency>
  <!-- 日志文件管理包 -->
  <!-- log start -->
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-nop</artifactId>
      <version>${slf4j.version}</version>
      <scope>runtime</scope>
    </dependency>
  <!-- log end -->
  </dependencies>

  <build>
    <finalName>spring-about</finalName>
  </build>
</project>

配置

@Configuration
@EnableCaching(proxyTargetClass = true)
public class CacheConfig implements CachingConfigurer {

    @Value("#{'${cacheManager.names}'.split(',')}")
    private List<String> cacheManagerNames;

    @Bean
    @Override
    public CacheManager cacheManager() {
        SimpleCacheManager cacheManager = new SimpleCacheManager();
        List<Cache> list = new ArrayList<>();
        for (String name : cacheManagerNames) {
            list.add(new ConcurrentMapCache(name));
        }
        cacheManager.setCaches(list);
        return cacheManager;
    }

    @Bean
    @Override
    public KeyGenerator keyGenerator() {
        return new DefaultKeyGenerator();
    }
}

使用

    @Cacheable(value = "propConfigCache",key = "#root.method.toString()+#key ",condition = "#key==null or ''.equals(#key.trim())")
    @Override
    public Map<String, Object> get(String key) {
        Map<String, Object> map = new HashMap<>();
        map.put("date", new Date());
        return map;
    }

源码地址：https://gitee.com/mijin/selfmvc/tree/master/springmvc-about