整合Redis教程(基础版)


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


  • 初始化项目
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mvn archetype:generate -DgroupId=com.edurt.sli.slidr -DartifactId=spring-learn-integration-datajpa-redis -DarchetypeArtifactId=maven-archetype-quickstart -Dversion=1.0.0 -DinteractiveMode=false
  • 修改pom.xml增加redis的支持
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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">

<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-redisjedis依赖包

  • 一个简单的应用类
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/**
* 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
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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


  • /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
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/**
* 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

  • /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
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/**
* 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> {
}

CrudRepository中提供了一些基础的增删改查的功能.

  • 测试增删改查的功能

/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

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/**
* 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

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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"}⏎

-w1000

修改数据

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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"}⏎

-w1000

获取数据

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shicheng@shichengdeMacBook-Pro ~> curl -X GET http://localhost:8080/redis
[{"id":"1","name":"Hello Redis Modfiy"}]⏎

删除数据

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shicheng@shichengdeMacBook-Pro ~> curl -X DELETE 'http://localhost:8080/redis?id=1'
SUCCESS⏎

-w1000

打包文件部署


  • 打包数据
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mvn clean package -Dmaven.test.skip=true -X

运行打包后的文件即可

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java -jar target/spring-learn-integration-datajpa-redis-1.0.0.jar

源码地址