SpringBoot接入华为云MRS Redis的最简方案

src/main/java/com/example/redis/
├── application.java                # 启动类（无任何redis专属注解）
└── controller/
    └── rediscontroller.java        # 测试接口类
src/main/resources/
└── application.properties          # 唯一配置文件

# 写入缓存
curl http://localhost:9093/set
# 输出：success
# 读取缓存
curl http://localhost:9093/get
# 输出：mrs-redis-test-value

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelversion>4.0.0</modelversion>
    <parent>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-starter-parent</artifactid>
        <version>2.4.2</version>
        <relativepath/>
    </parent>
    <groupid>com.example</groupid>
    <artifactid>mrs-redis-demo</artifactid>
    <version>1.0.0</version>
    <name>mrs-redis-密码模式最简接入demo</name>
    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <project.build.sourceencoding>utf-8</project.build.sourceencoding>
        <!-- 固定兼容版本 -->
        <jedis.version>3.6.3-h0.cbu.mrs.350.r11</jedis.version>
        <pool2.version>2.11.1</pool2.version>
    </properties>
    <dependencies>
        <!-- web容器：排除tomcat，使用jetty -->
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-web</artifactid>
            <exclusions>
                <exclusion>
                    <groupid>org.springframework.boot</groupid>
                    <artifactid>spring-boot-starter-tomcat</artifactid>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- jetty容器 -->
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-jetty</artifactid>
        </dependency>
        <!-- redis核心启动器：排除lettuce -->
        <dependency>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-starter-data-redis</artifactid>
            <exclusions>
                <exclusion>
                    <groupid>io.lettuce</groupid>
                    <artifactid>lettuce-core</artifactid>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- mrs定制版jedis -->
        <dependency>
            <groupid>redis.clients</groupid>
            <artifactid>jedis</artifactid>
            <version>${jedis.version}</version>
        </dependency>
        <!-- 连接池依赖 -->
        <dependency>
            <groupid>org.apache.commons</groupid>
            <artifactid>commons-pool2</artifactid>
            <version>${pool2.version}</version>
        </dependency>
    </dependencies>
    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.yml</include>
                </includes>
            </resource>
        </resources>
    </build>
</project>

# 项目端口
server.port=9093
# ===================== mrs redis 密码模式核心配置 =====================
# 集群节点：填写1个有效节点即可自动发现完整集群拓扑
spring.redis.cluster.nodes=<ip>:6379
# mrs redis密码模式认证凭据（集群专属账号密码）
spring.redis.username=<username>
spring.redis.password=<password>
# ssl开关：必须与mrs集群redis_ssl_on配置保持一致
spring.redis.ssl=false
# 连接超时时间
spring.redis.timeout=5000ms
# ===================== jedis连接池配置 =====================
spring.redis.jedis.pool.max-active=20
spring.redis.jedis.pool.max-idle=10
spring.redis.jedis.pool.min-idle=5
spring.redis.jedis.pool.max-wait=-1ms

package com.example.redis;

import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;

@springbootapplication
public class application {
    public static void main(string[] args) {
        springapplication.run(application.class, args);
    }
}

package com.example.redis.controller;

import org.springframework.data.redis.core.redistemplate;
import org.springframework.web.bind.annotation.getmapping;
import org.springframework.web.bind.annotation.restcontroller;

import javax.annotation.resource;
import java.util.concurrent.timeunit;

@restcontroller
public class rediscontroller {

    // 重点：泛型必须为 object,object
    @resource
    private redistemplate<object, object> redistemplate;

    private static final string test_key = "mrs:redis:test:key";
    private static final string test_value = "mrs-redis-test-value";

    @getmapping("/set")
    public string set() {
        // 写入缓存，过期时间60秒
        redistemplate.opsforvalue().set(test_key, test_value, 60, timeunit.seconds);
        return "success";
    }

    @getmapping("/get")
    public string get() {
        object value = redistemplate.opsforvalue().get(test_key);
        return value == null ? "null" : string.valueof(value);
    }
}

- [ ] pom.xml：引入mrs定制jedis、commons-pool2、spring-boot-starter-data-redis
- [ ] pom.xml：排除lettuce依赖、排除tomcat容器，引入jetty
- [ ] pom.xml：显式声明resources资源目录，避免配置文件加载失败
- [ ] application.properties：配置集群nodes、username、password、ssl参数
- [ ] 代码层：redistemplate泛型严格使用 <object, object>
- [ ] 清理冗余：删除所有kerberos配置、keytab文件、krb5.conf文件
- [ ] 清理冗余：删除所有自定义redisconfig配置类
- [ ] 编译验证：执行mvn clean package，无报错
- [ ] 启动测试：curl读写接口验证集群连通性