[springBoot] Springboot 整合redis并实现自定义序列化遇到的问题

本文主要目的是记录自己所犯错误, 供大家参考:

错误1:

org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.data.redis.core.RedisTemplate' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}     at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1506)

虽然已经在RedisConfig 前面加了@Configuration注解, 但是仍然报找不到RedisTemplate类型的bean, 网上找的了很多办法都没能解决这个问题. 最后突然想到可能是因为我的RedisConfig放在 com.test.config包中,而我的spring启动类放在 com.test.bootseckill包下面, 所以springboot不会将RedisConfig类中的bean编译到程序中.
由此可见, 所有@Configuration类必须放在springboot的启动类同一级包或者其子包(如com.test.bootseckill或者com.test.bootseckill.config)
@Configuration
public class RedisConfig extends CachingConfigurerSuppor

2.  Class Not find for javax.servlet.XXX

由于之前忘了记录错误了, 大概记得是这样子的. 

错误原因: 由于我使用SpringBoot整合jsp的web工程, 在一系列操作之后报这个奇怪的错误. 百度说是缺少javax.servlet的包依赖, 但这个依赖肯定没有问题(最新的新手才会犯这个错误). 

解决方法:

1) 使用maven的packet命令重新打包.

2)  重新Edit Run/Debug configuration

2.1) 

2.2) 先删除war包

2.3) 重新加入war包

 

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以下内容皆文章复制于:
https://www.cnblogs.com/cjsblog/p/9150482.html

当我们使用@Cacheable注解的时候会将返回的对象缓存起来，我们会发现默认缓存的值是二进制的，不方便查看，为此我们自定义序列化配置，改成JSON格式的 配置如下： pom.xml 4.0.0 com.cjs.example cjs-springsecurity-example 0.0.1-SNAPSHOT jar cjs-springsecurity-example org.springframework.boot spring-boot-starter-parent 2.0.2.RELEASE UTF-8 UTF-8 1.8 org.springframework.boot spring-boot-starter-cache org.springframework.boot spring-boot-starter-data-redis org.springframework.boot spring-boot-starter-security org.springframework.boot spring-boot-starter-thymeleaf org.springframework.boot spring-boot-starter-web org.projectlombok lombok true org.springframework.boot spring-boot-starter-test test org.springframework.security spring-security-test test org.springframework.boot spring-boot-maven-plugin application.yml spring: cache: type: redis redis: cache-null-values: false time-to-live: 3600000ms redis: host: 10.123.52.189 port: 6379 database: 5 password: 自己的密码 logging: level: root: info RedisConfig.java package com.cjs.example.config; import com.fasterxml.jackson.annotation.JsonAutoDetect; import com.fasterxml.jackson.annotation.PropertyAccessor; import com.fasterxml.jackson.databind.ObjectMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.cache.annotation.CachingConfigurerSupport; import org.springframework.cache.annotation.EnableCaching; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.data.redis.cache.RedisCacheConfiguration; import org.springframework.data.redis.cache.RedisCacheManager; import org.springframework.data.redis.cache.RedisCacheWriter; import org.springframework.data.redis.connection.RedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer; import org.springframework.data.redis.serializer.RedisSerializationContext; import org.springframework.data.redis.serializer.StringRedisSerializer; @EnableCaching @Configuration public class RedisConfig extends CachingConfigurerSupport { @Autowired private RedisConnectionFactory redisConnectionFactory; @Bean public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory) { Jackson2JsonRedisSerializer