使用Caching-EhCache

Author: fengyws

spring-boot-demo-19-1/pom.xml

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+<?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>com.roncoo.education</groupId>
+	<artifactId>spring-boot-demo-19-1</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>spring-boot-demo-19-1</name>
+	<description>Demo project for Spring Boot</description>
+
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>1.4.0.RELEASE</version>
+		<relativePath /> <!-- lookup parent from repository -->
+	</parent>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<java.version>1.8</java.version>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-devtools</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-freemarker</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.webjars</groupId>
+			<artifactId>jquery</artifactId>
+			<version>2.1.4</version>
+		</dependency>
+
+		<!-- 数据库 -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-redis</artifactId>
+		</dependency>
+
+		<!-- mongodb -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-mongodb</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>de.flapdoodle.embed</groupId>
+			<artifactId>de.flapdoodle.embed.mongo</artifactId>
+		</dependency>
+		
+		<!-- caching -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-cache</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>net.sf.ehcache</groupId>
+			<artifactId>ehcache</artifactId>
+		</dependency>
+		
+		<dependency>
+			<groupId>org.apache.httpcomponents</groupId>
+			<artifactId>httpclient</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+
+</project>

spring-boot-demo-19-1/src/main/java/com/roncoo/example/SpringBootDemo191Application.java

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+package com.roncoo.example;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.web.servlet.ServletComponentScan;
+import org.springframework.cache.annotation.EnableCaching;
+
+@EnableCaching
+@ServletComponentScan
+@SpringBootApplication
+public class SpringBootDemo191Application {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SpringBootDemo191Application.class, args);
+	}
+}

spring-boot-demo-19-1/src/main/java/com/roncoo/example/bean/RoncooUser.java

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+package com.roncoo.example.bean;
+
+import java.util.Date;
+
+public class RoncooUser {
+	private int id;
+	private String name;
+	private Date createTime;
+
+	public int getId() {
+		return id;
+	}
+
+	public void setId(int id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public Date getCreateTime() {
+		return createTime;
+	}
+
+	public void setCreateTime(Date createTime) {
+		this.createTime = createTime;
+	}
+
+	@Override
+	public String toString() {
+		return "RoncooUser [id=" + id + ", name=" + name + ", createTime=" + createTime + "]";
+	}
+
+}

spring-boot-demo-19-1/src/main/java/com/roncoo/example/bean/RoncooUserLog.java

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+package com.roncoo.example.bean;
+
+import java.util.Date;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.Id;
+
+@Entity
+public class RoncooUserLog {
+
+	@Id
+	@GeneratedValue
+	private Integer id;
+
+	@Column
+	private Date createTime;
+
+	@Column
+	private String userName;
+
+	@Column
+	private String userIp;
+
+	public Integer getId() {
+		return id;
+	}
+
+	public void setId(Integer id) {
+		this.id = id;
+	}
+
+	public Date getCreateTime() {
+		return createTime;
+	}
+
+	public void setCreateTime(Date createTime) {
+		this.createTime = createTime;
+	}
+
+	public String getUserName() {
+		return userName;
+	}
+
+	public void setUserName(String userName) {
+		this.userName = userName;
+	}
+
+	public String getUserIp() {
+		return userIp;
+	}
+
+	public void setUserIp(String userIp) {
+		this.userIp = userIp;
+	}
+
+	@Override
+	public String toString() {
+		return "RoncooUserLog [id=" + id + ", createTime=" + createTime + ", userName=" + userName + ", userIp=" + userIp + "]";
+	}
+
+}

spring-boot-demo-19-1/src/main/java/com/roncoo/example/cache/RoncooUserLogCache.java

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+package com.roncoo.example.cache;
+
+import com.roncoo.example.bean.RoncooUserLog;
+
+/**
+ * @author wujing
+ */
+public interface RoncooUserLogCache {
+
+	/**
+	 * 查询
+	 * 
+	 * @param id
+	 * @return
+	 */
+	RoncooUserLog selectById(Integer id);
+
+	/**
+	 * 更新
+	 * 
+	 * @param roncooUserLog
+	 * @return
+	 */
+	RoncooUserLog updateById(RoncooUserLog roncooUserLog);
+
+	/**
+	 * 删除
+	 * 
+	 * @param id
+	 * @return
+	 */
+	String deleteById(Integer id);
+}

spring-boot-demo-19-1/src/main/java/com/roncoo/example/cache/impl/RoncooUserLogCacheImpl.java

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+package com.roncoo.example.cache.impl;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.cache.annotation.CacheConfig;
+import org.springframework.cache.annotation.CacheEvict;
+import org.springframework.cache.annotation.CachePut;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.stereotype.Repository;
+
+import com.roncoo.example.bean.RoncooUserLog;
+import com.roncoo.example.cache.RoncooUserLogCache;
+import com.roncoo.example.dao.RoncooUserLogDao;
+
+/**
+ * @author wujing
+ */
+@CacheConfig(cacheNames = "roncooCache")
+@Repository
+public class RoncooUserLogCacheImpl implements RoncooUserLogCache {
+
+	@Autowired
+	private RoncooUserLogDao roncooUserLogDao;
+
+	@Cacheable(key = "#p0")
+	@Override
+	public RoncooUserLog selectById(Integer id) {
+		System.out.println("查询功能，缓存找不到，直接读库, id=" + id);
+		return roncooUserLogDao.findOne(id);
+	}
+
+	@CachePut(key = "#p0")
+	@Override
+	public RoncooUserLog updateById(RoncooUserLog roncooUserLog) {
+		System.out.println("更新功能，更新缓存，直接写库, id=" + roncooUserLog);
+		return roncooUserLogDao.save(roncooUserLog);
+	}
+
+	@CacheEvict(key = "#p0")
+	@Override
+	public String deleteById(Integer id) {
+		System.out.println("删除功能，删除缓存，直接写库, id=" + id);
+		return "清空缓存成功";
+	}
+
+}

spring-boot-demo-19-1/src/main/java/com/roncoo/example/component/RoncooMongodbComponent.java

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+package com.roncoo.example.component;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.mongodb.core.MongoTemplate;
+import org.springframework.data.mongodb.core.query.Criteria;
+import org.springframework.data.mongodb.core.query.Query;
+import org.springframework.data.mongodb.core.query.Update;
+import org.springframework.stereotype.Component;
+
+import com.roncoo.example.bean.RoncooUser;
+
+/**
+ * @author wujing
+ */
+@Component
+public class RoncooMongodbComponent {
+
+	@Autowired
+	private MongoTemplate mongoTemplate;
+
+	public void insert(RoncooUser roncooUser) {
+		mongoTemplate.insert(roncooUser);
+	}
+
+	public void deleteById(int id) {
+		Criteria criteria = Criteria.where("id").in(id);
+		Query query = new Query(criteria);
+		mongoTemplate.remove(query, RoncooUser.class);
+	}
+	
+	public void updateById(RoncooUser roncooUser) {
+		Criteria criteria = Criteria.where("id").in(roncooUser.getId());
+		Query query = new Query(criteria);
+		Update update = new Update();
+		update.set("name", roncooUser.getName());
+		update.set("createTime", roncooUser.getCreateTime());
+		mongoTemplate.updateMulti(query, update, RoncooUser.class);
+	}
+	
+	public RoncooUser selectById(int id) {
+		Criteria criteria = Criteria.where("id").in(id);
+		Query query = new Query(criteria);
+		return mongoTemplate.findOne(query, RoncooUser.class);
+	}
+}

spring-boot-demo-19-1/src/main/java/com/roncoo/example/component/RoncooRedisComponent.java

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+package com.roncoo.example.component;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.StringRedisTemplate;
+import org.springframework.data.redis.core.ValueOperations;
+import org.springframework.stereotype.Component;
+
+/**
+ * @author wujing
+ */
+@Component
+public class RoncooRedisComponent {
+
+	@Autowired
+	private StringRedisTemplate stringRedisTemplate;
+
+	public void set(String key, String value) {
+		ValueOperations<String, String> ops = this.stringRedisTemplate.opsForValue();
+		if (!this.stringRedisTemplate.hasKey(key)) {
+			ops.set(key, value);
+			System.out.println("set key success");
+		} else {
+			// 存在则打印之前的value值
+			System.out.println("this key = " + ops.get(key));
+		}
+	}
+
+	public String get(String key) {
+		return this.stringRedisTemplate.opsForValue().get(key);
+	}
+
+	public void del(String key) {
+		this.stringRedisTemplate.delete(key);
+	}
+}