springboot整合其它项目
目录
一、集成Druid
二、集成redis之非注解式开发
三、集成redis之注解缓存开发
一、集成Druid
学习地址：
https://github.com/alibaba/druid/tree/master/druid-spring-boot-starter
添加配置，不要最新的，进过测试SQL监控失效
pom依赖：(注意别放错了哦)
com.alibaba
druid-spring-boot-starter
1.1.10
添加Druid配置到yml文件：
type:com.alibaba.druid.pool.DruidDataSource
druid:
#2.连接池配置
#初始化连接池的连接数量 大小，最小，最大
initial-size: 5
min-idle: 5
max-active: 20
#配置获取连接等待超时的时间
max-wait: 60000
#配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
time-between-eviction-runs-millis: 60000
# 配置一个连接在池中最小生存的时间，单位是毫秒
min-evictable-idle-time-millis: 30000
validation-query: SELECT 1 FROM DUAL
test-while-idle: true
test-on-borrow: true
test-on-return: false
# 是否缓存preparedStatement，也就是PSCache 官方建议MySQL下建议关闭 个人建议如果想用SQL防火墙 建议打开
pool-prepared-statements: true
max-pool-prepared-statement-per-connection-size: 20
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
filter:
stat:
merge-sql: true
slow-sql-millis: 5000
#3.基础监控配置
web-stat-filter:
enabled: true
url-pattern: /*
#设置不统计哪些URL
exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"
session-stat-enable: true
session-stat-max-count: 100
stat-view-servlet:
enabled: true
url-pattern: /druid/*
reset-enable: true
#设置监控页面的登录名和密码
login-username: admin
login-password: admin
allow: 127.0.0.1
#deny: 192.168.1.100
用户名和密码对应如下：
当运行了http://localhost:8080/spboot04/clz/list 时，下面URL监控就会显示：
（SQL监控也能看到）
二、集成redis之非注解式开发
pom.xml：
org.springframework.boot spring-boot-starter-data-redis
yml配置：
mybatis:
mapper-locations: classpath:mappers/*xml
type-aliases-package: com.ycx.spboot04.model
server:
port: 8080
servlet:
context-path: /spboot04
spring:
application:
name: spboot04
datasource:
driver-class-name: com.mysql.jdbc.Driver
name: defaultDataSource
password: 1234
url: jdbc:mysql://localhost:3306/yjy?useUnicode=true&characterEncoding=UTF-8
username: root
type: com.alibaba.druid.pool.DruidDataSource
druid:
#2.连接池配置
#初始化连接池的连接数量 大小，最小，最大
initial-size: 5
min-idle: 5
max-active: 20
#配置获取连接等待超时的时间
max-wait: 60000
#配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
time-between-eviction-runs-millis: 60000
# 配置一个连接在池中最小生存的时间，单位是毫秒
min-evictable-idle-time-millis: 30000
validation-query: SELECT 1 FROM DUAL
test-while-idle: true
test-on-borrow: true
test-on-return: false
# 是否缓存preparedStatement，也就是PSCache 官方建议MySQL下建议关闭 个人建议如果想用SQL防火墙 建议打开
pool-prepared-statements: true
max-pool-prepared-statement-per-connection-size: 20
# 配置监控统计拦截的filters，去掉后监控界面sql无法统计，'wall'用于防火墙
filter:
stat:
merge-sql: true
slow-sql-millis: 5000
#3.基础监控配置
web-stat-filter:
enabled: true
url-pattern: /*
#设置不统计哪些URL
exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"
session-stat-enable: true
session-stat-max-count: 100
stat-view-servlet:
enabled: true
url-pattern: /druid/*
reset-enable: true
#设置监控页面的登录名和密码
login-username: admin
login-password: admin
allow: 127.0.0.1
#deny: 192.168.1.100
freemarker:
cache: false
charset: utf-8
expose-request-attributes: true
expose-session-attributes: true
suffix: .ftl
template-loader-path: classpath:/templates/
# resources:
# static-locations: classpath:/static/# 应用服务 WEB 访问端口
mvc:
static-path-pattern: /static/**
redis:
host:192.168.122.128
password:
port: 6379
database: 0
pagehelper:
reasonable: true
supportMethodsArguments: true
page-size-zero: true
helper-dialect: mysql
#logging:
# level:
# com.ycx.spboot04:debugRedisConfig ：
package com.ycx.spboot04.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
/**
* @author 杨总
* @create 2022-11-02 22:03
*
* @Configuration:凡是被@Configuration注解所标记，就代表当前这个类为配置类
* 而配置类等价于ssm阶段中spring-*.xml这一类的配置文件
*
* spring-*.xml
* getRedisTemplate(RedisConnectionFactory connectionFactory){
RedisTemplate redisTemplate=new RedisTemplate<>();
// 配置序列化器
//针对于key
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
//针对于value
redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
redisTemplate.setHashKeySerializer(new GenericJackson2JsonRedisSerializer());
// redisTemplate.afterPropertiesSet();//根据不同的redis版本
// connectionFactory是包含了redis的连接信息
redisTemplate.setConnectionFactory(connectionFactory);
return redisTemplate;
}
}
ClazzBizImpl ：
package com.ycx.spboot04.biz.impl;
import com.ycx.spboot04.biz.ClazzBiz;
import com.ycx.spboot04.mapper.ClazzMapper;
import com.ycx.spboot04.model.Clazz;
import com.ycx.spboot04.util.PageBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import java.util.List;
import java.util.Map;
@Service
public class ClazzBizImpl implements ClazzBiz {
@Autowired
private ClazzMapper clazzMapper;
@Autowired
private RedisTemplate redisTemplate;
@Override
public int deleteByPrimaryKey(Integer cid) {
System.out.println("不做任何操作...");
return clazzMapper.deleteByPrimaryKey(cid);
// return 0;
}
@Override
public int insert(Clazz record) {
return clazzMapper.insert(record);
}
@Override
public int insertSelective(Clazz record) {
return clazzMapper.insertSelective(record);
}
@Override
public Clazz selectByPrimaryKey(Integer cid) {
return clazzMapper.selectByPrimaryKey(cid);
}
@Override
public int updateByPrimaryKeySelective(Clazz record) {
return clazzMapper.updateByPrimaryKeySelective(record);
}
@Override
public int updateByPrimaryKey(Clazz record) {
return clazzMapper.updateByPrimaryKey(record);
}
@Override
public List listPager(Clazz clazz, PageBean pageBean) {
List clazzes = clazzMapper.listPager(clazz);
// 将班级信息缓存到redis中
redisTemplate.opsForValue().set("clz_infos",clazzes);
return clazzes;
}
@Override
public List 
测试，记得打开虚拟机，再打开redis查看：
三、集成redis之注解缓存开发
注解式缓存
RedisConfig ：
package com.ycx.spboot04.config;
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.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import java.time.Duration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* @author 杨总
* @create 2022-11-02 22:03
*
* @Configuration:凡是被@Configuration注解所标记，就代表当前这个类为配置类
* 而配置类等价于ssm阶段中spring-*.xml这一类的配置文件
*
* spring-*.xml
* getRedisTemplate(RedisConnectionFactory connectionFactory){
RedisTemplate redisTemplate=new RedisTemplate<>();
// 配置序列化器
//针对于key
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
//针对于value
redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
redisTemplate.setHashKeySerializer(new GenericJackson2JsonRedisSerializer());
// redisTemplate.afterPropertiesSet();//根据不同的redis版本
// connectionFactory是包含了redis的连接信息
redisTemplate.setConnectionFactory(connectionFactory);
return redisTemplate;
}
@Bean
public RedisCacheManager redis(RedisConnectionFactory connectionFactory){
RedisCacheConfiguration defaultCacheConfig = RedisCacheConfiguration.defaultCacheConfig();
// 设置缓存管理器管理的缓存的默认过期时间
defaultCacheConfig = defaultCacheConfig.entryTtl(Duration.ofSeconds(defaultExpireTime))
// 设置 key为string序列化
.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
// 设置value为json序列化
.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()))
// 不缓存空值
.disableCachingNullValues();
Set cacheNames = new HashSet<>();
cacheNames.add(userCacheName);
// 对每个缓存空间应用不同的配置
Map configMap = new HashMap<>();
configMap.put(userCacheName, defaultCacheConfig.entryTtl(Duration.ofSeconds(userCacheExpireTime)));
RedisCacheManager cacheManager = RedisCacheManager.builder(connectionFactory)
.cacheDefaults(defaultCacheConfig)
.initialCacheNames(cacheNames)
.withInitialCacheConfigurations(configMap)
.build();
return cacheManager;
}
}
测试注解式开发，修改代码如下
ClazzBiz.java：
package com.ycx.spboot04.biz;
import com.ycx.spboot04.model.Clazz;
import com.ycx.spboot04.util.PageBean;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import java.util.List;
import java.util.Map;
public interface ClazzBiz {
// @CacheEvict(value = "xx",key = "'cid:'+#cid",allEntries = true)
int deleteByPrimaryKey(Integer cid);
int insert(Clazz record);
int insertSelective(Clazz record);
// @Cacheable(value = "test") ttl时间未60s
@Cacheable(value = "clz",key="'cid:'+#cid")
Clazz selectByPrimaryKey(Integer cid);
int updateByPrimaryKeySelective(Clazz record);
int updateByPrimaryKey(Clazz record);
List listPager(Clazz clazz, PageBean pageBean);
List 
今日知识到此结束，再见！