163. Spring Boot Redis version problem [Learn Spring Boot from scratch]

 

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Origin of need :

       In the blog " 35. Spring Boot integrates Redis to implement caching mechanism [Learn Spring Boot from scratch ] "

A netizen commented :

With the following, there is no RedisTemplate

 

       <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-redis</artifactId>
        </dependency>

 

Finally, use the following

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

 

 

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The error produces :

Using version 1.5 to introduce redis will not succeed, and the folder that is automatically downloaded to the local maven library is also an " unknown " folder. It is OK to use 1.3 and 1.4 ... The following configuration method:

<dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-redis </artifactId>
</dependency>

 

       这样的配置在1.5+版本就无法使用redis。在1.4版本的更新日志中有这么一段说明：

Renamed starters
The following starters have been renamed, the old ones will be removed in Spring Boot 1.5

spring-boot-starter-ws → spring-boot-starter-web-services
spring-boot-starter-redis → spring-boot-starter-data-redis

 

上面大体的意思就是：以下的starters已经被重新命令，老的版本在1.5会被移除掉。

 

使用方式：

当使用的是1.4（包括1.4版本）之前的版本使用如下配置：

<dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-redis </artifactId>
</dependency>

 

       当使用的是1.5+的版本使用如下配置：

<dependency>
       <groupId>org.springframework.boot</groupId>
       <artifactId>spring-boot-starter-data-redis </artifactId>
</dependency>

 

 

       这里要特别注意下1.4版本是一个过渡版本，所以当你使用的spring boot是1.4.x版本的话，那么使用上面的哪一种方式都是可以的，建议使用官方新的配置方式。