本教程主要详细讲解Spring Data Redis,它向Redis提供Spring Data平台的抽象.
Redis由基于key/value库的数据结构存数,以持久保存数据,并可用作数据库,缓存,消息代理等。
基础环境
—
技术 | 版本 |
Java | 1.8+ |
SpringBoot | 2.x.x |
DataJPA | 2.x.x |
Jedis | 2.9.x |
创建项目
—
mvn archetype:generate -DgroupId=com.edurt.sli.slidr -DartifactId=spring-learn-integration-datajpa-redis -DarchetypeArtifactId=maven-archetype-quickstart -Dversion=1.0.0 -DinteractiveMode=false
<?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">
<parent>
<artifactId>spring-learn-integration-datajpa</artifactId>
<groupId>com.edurt.sli</groupId>
<version>1.0.0</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>spring-learn-integration-datajpa-redis</artifactId>
<name>Spring DataJPA Redis教程(基础版)</name>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>${dependency.springboot2.common.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
<version>${dependency.springboot2.common.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${dependency.lombok.version}</version>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>${dependency.jedis.version}</version>
</dependency>
<dependency>
<groupId>io.lettuce</groupId>
<artifactId>lettuce-core</artifactId>
<version>${dependency.lettuce.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${dependency.springboot2.common.version}</version>
<configuration>
<fork>true</fork>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>${plugin.maven.compiler.version}</version>
<configuration>
<source>${system.java.version}</source>
<target>${system.java.version}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
spring-boot-starter-data-redis
整合Redis需要的依赖包,或者单独使用spring-data-redis
和jedis
依赖包
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.edurt.sli.slidr;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* <p> SpringBootDataJPARedisIntegration </p>
* <p> Description : SpringBootDataJPARedisIntegration </p>
* <p> Author : qianmoQ </p>
* <p> Version : 1.0 </p>
* <p> Create Time : 2019-06-14 00:44 </p>
* <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p>
*/
@SpringBootApplication
public class SpringBootDataJPARedisIntegration {
public static void main(String[] args) {
SpringApplication.run(SpringBootDataJPARedisIntegration.class, args);
}
}
配置支持Redis
—
- 在resources资源目录下创建一个application.properties的配置文件,内容如下
spring.redis.host=localhost
spring.redis.port=6379
spring.redis.database=0
spring.redis.jedis.pool.max-active=8
spring.redis.jedis.pool.max-wait=1ms
spring.redis.lettuce.pool.max-active=8
spring.redis.jedis.pool.min-idle=0
操作Redis数据
—
- 在
/src/main/java/com/edurt/sli/slidr
目录下创建model目录,并在该目录下新建RedisModel文件
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.edurt.sli.slidr.model;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.springframework.data.annotation.Id;
import org.springframework.data.redis.core.RedisHash;
/**
* <p> RedisModel </p>
* <p> Description : RedisModel </p>
* <p> Author : qianmoQ </p>
* <p> Version : 1.0 </p>
* <p> Create Time : 2019-06-14 01:06 </p>
* <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p>
*/
@RedisHash(value = "Redis")
@Data
@ToString
@AllArgsConstructor
@NoArgsConstructor
public class RedisModel {
@Id
private String id;
private String name;
}
@RedisHash
为每个数据库创建域类的空子类。
@Id
注解的属性和被命名为id的属性会被当作标识属性
- 在
/src/main/java/com/edurt/sli/slidr
目录下创建repository目录,并在该目录下新建RedisSupport文件
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.edurt.sli.slidr.repository;
import com.edurt.sli.slidr.model.RedisModel;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
/**
* <p> RedisSupport </p>
* <p> Description : RedisSupport </p>
* <p> Author : qianmoQ </p>
* <p> Version : 1.0 </p>
* <p> Create Time : 2019-06-14 00:59 </p>
* <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p>
*/
@Repository
public interface RedisSupport extends CrudRepository<RedisModel, String> {
}
在CrudRepository
中提供了一些基础的增删改查的功能.
在/src/main/java/com/edurt/sli/slidr
目录下创建controller目录,并在该目录下新建RedisController文件
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.edurt.sli.slidr.controller;
import com.edurt.sli.slidr.model.RedisModel;
import com.edurt.sli.slidr.repository.RedisSupport;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
/**
* <p> RedisController </p>
* <p> Description : RedisController </p>
* <p> Author : qianmoQ </p>
* <p> Version : 1.0 </p>
* <p> Create Time : 2019-06-14 01:05 </p>
* <p> Author Email: <a href="mailTo:shichengoooo@163.com">qianmoQ</a> </p>
*/
@RestController
@RequestMapping(value = "redis")
public class RedisController {
@Autowired
private RedisSupport support;
@GetMapping
public Object get() {
return this.support.findAll();
}
@PostMapping
public Object post(@RequestBody RedisModel mode) {
return this.support.save(mode);
}
@PutMapping
public Object put(@RequestBody RedisModel mode) {
return this.support.save(mode);
}
@DeleteMapping
public Object delete(@RequestParam String id) {
this.support.deleteById(id);
return "SUCCESS";
}
}
添加数据
shicheng@shichengdeMacBook-Pro ~> curl -X POST http://localhost:8080/redis -H 'Content-Type:application/json' -d '{"id": "1", "name": "Hello Redis"}'
{"id":"1","name":"Hello Redis"}⏎
修改数据
shicheng@shichengdeMacBook-Pro ~> curl -X PUT http://localhost:8080/redis -H 'Content-Type:application/json' -d '{"id": "1", "name": "Hello Redis Modfiy"}'
{"id":"1","name":"Hello Redis Modfiy"}⏎
获取数据
shicheng@shichengdeMacBook-Pro ~> curl -X GET http://localhost:8080/redis
[{"id":"1","name":"Hello Redis Modfiy"}]⏎
删除数据
shicheng@shichengdeMacBook-Pro ~> curl -X DELETE 'http://localhost:8080/redis?id=1'
SUCCESS⏎
打包文件部署
—
mvn clean package -Dmaven.test.skip=true -X
运行打包后的文件即可
java -jar spring-learn-integration-datajpa/spring-learn-integration-datajpa-redis/target/spring-learn-integration-datajpa-redis-1.0.0.jar
源码地址
—