springboot升级到2.x需要改动的地方

由于需要跟进技术发展的脚步，对原有项目springboot进行2.0升级，但升级并不是说改一下版本就完事了，springboot2.0变动比较多，详细变化可以百度一下，下面针对升级springboot遇到的问题记录一下，希望能对升级的同学有用：

1.Redis

添加pom配置：

        
            org.springframework.boot
            spring-boot-starter-data-redis
        

配置类：

package com.ts.config;

import java.time.Duration;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cache.CacheManager;
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.connection.RedisPassword;
import org.springframework.data.redis.connection.RedisStandaloneConfiguration;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
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.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;

import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

@Configuration
@EnableCaching
public class RedisCacheConfig extends CachingConfigurerSupport {
    Logger logger = LoggerFactory.getLogger(RedisCacheConfig.class);

    @Value("${spring.redis.database}")
    private int database;
    
    @Value("${spring.redis.host}")
    private String host;

    @Value("${spring.redis.port}")
    private int port;

    @Value("${spring.redis.timeout}")
    private int timeout;

    @Value("${spring.redis.pool.max-active}")
    private int maxActive;
    
    @Value("${spring.redis.pool.max-idle}")
    private int maxIdle;
    
    @Value("${spring.redis.pool.min-idle}")
    private int minIdle;

    @Value("${spring.redis.pool.max-wait}")
    private long maxWaitMillis;

    @Value("${spring.redis.password}")
    private String password;

    @Bean
    public RedisConnectionFactory jedisConnectionFactory() {
        RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration(host, port);
        redisStandaloneConfiguration.setDatabase(database);
        redisStandaloneConfiguration.setHostName(host);
        redisStandaloneConfiguration.setPassword(RedisPassword.of(password));
        
        JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(redisStandaloneConfiguration);
        //其他配置，可再次扩展
        return jedisConnectionFactory;
    }

    @Bean
    public JedisPool redisPoolFactory() {
        logger.info("JedisPool注入成功！！");
        logger.info("redis地址：{}:{}", host, port);
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        jedisPoolConfig.setMaxIdle(maxIdle);
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);

        JedisPool jedisPool = new JedisPool(jedisPoolConfig, host, port, timeout, password);

        return jedisPool;
    }
    
    @SuppressWarnings({ "rawtypes", "unchecked" })
    @Bean
    public RedisTemplate redisTemplate(RedisConnectionFactory cf) {
        RedisTemplate redisTemplate = new RedisTemplate();
        redisTemplate.setConnectionFactory(cf);
        
        Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        
        RedisSerializer redisSerializer = new StringRedisSerializer();
        
        //key序列化方式
        redisTemplate.setKeySerializer(redisSerializer);
        //value序列化
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        //value hashmap序列化
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);
        
        return redisTemplate;
    }

    
    
    @Bean
    public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        return new RedisCacheManager(
            RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory),
            this.getRedisCacheConfigurationWithTtl(600), // 默认策略，未配置的 key 会使用这个
            this.getRedisCacheConfigurationMap() // 指定 key 策略
        );
    }

    private Map getRedisCacheConfigurationMap() {
        Map redisCacheConfigurationMap = new HashMap<>();
        redisCacheConfigurationMap.put("MerchantProductAccess", this.getRedisCacheConfigurationWithTtl(30));
        redisCacheConfigurationMap.put("UserInfoListAnother", this.getRedisCacheConfigurationWithTtl(180));

        return redisCacheConfigurationMap;
    }

    private RedisCacheConfiguration getRedisCacheConfigurationWithTtl(Integer seconds) {
        Jackson2JsonRedisSerializer