<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.learn</groupId>
<artifactId>23-spring-boot-ehcache</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.12.RELEASE</version>
</parent>
<properties>
<java.version>1.7</java.version>
<thymeleaf.version>3.0.2.RELEASE</thymeleaf.version>
<thymeleaf-layout-dialect.version>2.0.4</thymeleaf-layout-dialect.version>
</properties>
<dependencies>
<!-- springBoot的启动器 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- springBoot的启动器 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<!-- springBoot的启动器 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- 测试工具的启动器 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
</dependency>
<!-- mysql -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!-- druid连接池 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.9</version>
</dependency>
<!-- Spring Boot缓存支持启动器 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<!-- Ehcache坐标 -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
</dependency>
</dependencies>
</project>
spring.datasource.driverClassName=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/ssm
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.cache.ehcache.cofnig=ehcache.xml
<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../config/ehcache.xsd">
<diskStore path="java.io.tmpdir"/>
<!--defaultCache:ehcache的默认缓存策略 -->
<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
maxElementsOnDisk="10000000"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU">
<persistence strategy="localTempSwap"/>
</defaultCache>
<!-- 自定义缓存策略 -->
<cache name="users"
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
maxElementsOnDisk="10000000"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU">
<persistence strategy="localTempSwap"/>
</cache>
</ehcache>
package com.learn.dao;
import org.springframework.data.jpa.repository.JpaRepository;
import com.learn.pojo.Users;
/**
* 参数一 T :当前需要映射的实体
* 参数二 ID :当前映射的实体中的OID的类型
*
*/
public interface UsersRepository extends JpaRepository<Users,Integer>{
}
package com.learn.pojo;
import java.io.Serializable;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name="t_users")
public class Users implements Serializable {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
@Column(name="id")
private Integer id;
@Column(name="name")
private String name;
@Column(name="age")
private Integer age;
@Column(name="address")
private String address;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
@Override
public String toString() {
return "Users [id=" + id + ", name=" + name + ", age=" + age + ", address=" + address + "]";
}
}
package com.learn.service;
import java.util.List;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import com.learn.pojo.Users;
public interface UsersService {
List<Users> findUserAll();
Users findUserById(Integer id);
Page<Users> findUserByPage(Pageable pageable);
void saveUsers(Users users);
}
package com.learn.service.impl;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import com.learn.dao.UsersRepository;
import com.learn.pojo.Users;
import com.learn.service.UsersService;
/**
* UsersService接口实现类
*
*
*/
@Service
public class UsersServiceImpl implements UsersService {
@Autowired
private UsersRepository usersRepository;
@Override
public List<Users> findUserAll() {
return this.usersRepository.findAll();
}
@Override
//@Cacheable:对当前查询的对象做缓存处理
@Cacheable(value="users")
public Users findUserById(Integer id) {
return this.usersRepository.findOne(id);
}
@Override
public Page<Users> findUserByPage(Pageable pageable) {
return this.usersRepository.findAll(pageable);
}
@Override
public void saveUsers(Users users) {
this.usersRepository.save(users);
}
}
package com.learn;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cache.annotation.EnableCaching;
@SpringBootApplication
@EnableCaching
public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
package com.learn.test;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.learn.App;
import com.learn.service.UsersService;
/**
* UsersService测试
*
*
*/
@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes=App.class)
public class UsersServiceTest {
@Autowired
private UsersService usersService;
@Test
public void testFindUserById(){
//第一次查询
System.out.println(this.usersService.findUserById(1));
//第二次查询
System.out.println(this.usersService.findUserById(1));
}
}
