springboot+mybatis集成redis
1.先写pom.xml
<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.Li</groupId>
<artifactId>Code</artifactId>
<version>1.0-SNAPSHOT</version>
<name>Code</name>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.1.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.1.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.21</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
<!--springboot集成redis-->
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-redis</artifactId>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.9.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
</plugins>
</build>
</project>
2.application.properties
#数据库连接设置 spring.datasource.url=jdbc:mysql://localhost:3306/devdb spring.datasource.username=root spring.datasource.password=1234 spring.datasource.driver-class-name=com.mysql.jdbc.Driver #数据库连接池 spring.datasource.tomcat.max-active=20 spring.datasource.tomcat.initial-size=1 spring.datasource.tomcat.max-wait=60000 spring.datasource.tomcat.min-idle=1 spring.datasource.tomcat.time-between-eviction-runs-millis=60000 spring.datasource.tomcat.min-evictable-idle-time-millis=300000 spring.datasource.tomcat.validation-query=select 'x' spring.datasource.tomcat.test-while-idle=true spring.datasource.tomcat.test-on-borrow=false spring.datasource.tomcat.test-on-return=false spring.datasource.dbcp.pool-prepared-statements=true spring.datasource.dbcp2.max-open-prepared-statements=20 #端口设置 server.port=8091 #springboot集成redis #Matser的ip地址 spring.redis.host=127.0.0.1 #端口号 spring.redis.port=6379 #如果有密码 spring.redis.password=123456 spring.redis.pool.max-active=100 spring.redis.pool.max-idle=300 spring.redis.timeout=1000 spring.datasource.dbcp2.max-total=1000 spring.datasource.dbcp2.max-wait-millis=1000 spring.datasource.dbcp2.min-evictable-idle-time-millis=300000 spring.datasource.dbcp2.num-tests-per-eviction-run=1024 spring.datasource.dbcp2.time-between-eviction-runs-millis=30000 spring.datasource.dbcp2.test-on-borrow=true spring.datasource.dbcp2.test-while-idle=true #redis的集群 #spring.redis.cluster.nodes=192.168.177.128:7001,192.168.177.128:7002,192.168.177.128:7003,192.168.177.128:7004,192.168.177.128:7005,192.168.177.128:7006 #spring.redis.cluster.max-redirects=3
3.dao
package dao;
import entity.User;
import org.apache.ibatis.annotations.*;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.stereotype.Repository;
import java.util.List;
@Mapper
public interface UserDAO {
//sql注入,根据用户id，查询user数据
@Select("select * from user where id=#{id}")
public User selectUserById(int id);
@Select("select * from user where userName=#{userName}")
public List<User> selectUserByName(String userName);
@Insert("insert into user(userName,userAge,userAddress) values (#{userName},#{userAge},#{userAddress}")
public void addUser(User user);
@Update("update user set userName=#{userName},userAge=#{userAge},userAddress=#{userAddress} where id=#{id}")
public void updateUser(User user);
@Delete("delete from user where id=#{id}")
public void deleteUser(int id);
}
4.entity
package entity;
import lombok.Getter;
import lombok.Setter;
@Setter
@Getter
public class User {
private int id; //用户id
private String userName; //用户姓名
private int userAge; //用户年龄
private String userAddress; //用户住址
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public int getUserAge() {
return userAge;
}
public void setUserAge(int userAge) {
this.userAge = userAge;
}
public String getUserAddress() {
return userAddress;
}
public void setUserAddress(String userAddress) {
this.userAddress = userAddress;
}
}
5.UserController
package Cotroller;
import dao.UserDAO;
import entity.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import utils.RedisUtil;
import java.util.List;
@RestController
@RequestMapping("/user")
public class UserControllers {
@Autowired
private UserDAO userDAO;
@Autowired
private RedisUtil redisUtil;
//根据id，查询用户数据
@RequestMapping("/selectUserById")
public String selectUserById() {
User user = userDAO.selectUserById(1);
String s=user.getId()+user.getUserName()+user.getUserAge()+user.getUserAddress();
return s;
}
@RequestMapping("/test")
public String test(){
return "test";
}
//根据用户姓名查询用户数据集合
@RequestMapping(value = {"/selectUserByName"}, method = RequestMethod.POST)
public List<User> selectUserByName(@RequestParam("userName") String userName) {
return userDAO.selectUserByName(userName);
}
//添加用户
@RequestMapping("/addUser")
public void addUser() {
User user =new User();
user.setUserName("kakaka");
user.setUserAge(26);
user.setUserAddress("东京");
userDAO.addUser(user);
}
//更改用户
@RequestMapping("/updateUser")
public void updateUser() {
User user=new User();
user.setId(5);
user.setUserName("tom");
user.setUserAge(24);
user.setUserAddress("北京");
userDAO.updateUser(user);
}
//删除用户，根据id
@RequestMapping(value={"/deleteUser"},method = RequestMethod.POST)
public void deleteUser(int id){
userDAO.deleteUser(id);
}
//检验redis
@RequestMapping("/redis")
public boolean set(){
boolean b= redisUtil.set("li","lirixing");
return b;
}
}
6.redis的RedisConfig
package config;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import redis.clients.jedis.JedisPoolConfig;
import utils.RedisUtil;
import java.beans.ConstructorProperties;
@Configuration
@EnableAutoConfiguration
public class ReadisConfig {
@Value("${spring.redis.pool.max-idle}")
private Integer maxIdle;
@Value("${spring.datasource.dbcp2.max-total}")
private Integer maxTotal;
@Value("${spring.datasource.dbcp2.max-wait-millis}")
private Integer maxWaitMillis;
@Value("${spring.datasource.dbcp2.min-evictable-idle-time-millis}")
private Integer minEvictableIdleTimeMillis;
@Value("${spring.datasource.dbcp2.num-tests-per-eviction-run}")
private Integer numTestsPerEvictionRun;
@Value("${spring.datasource.dbcp2.time-between-eviction-runs-millis}")
private long timeBetweenEvictionRunsMillis;
@Value("${spring.datasource.dbcp2.test-on-borrow}")
private boolean testOnBorrow;
@Value("${spring.datasource.dbcp2.test-while-idle}")
private boolean testWhileIdle;
/* @Value("${spring.redis.cluster.nodes}")
private String clusterNodes;
@Value("${spring.redis.cluster.max-redirects}")
private Integer mmaxRedirectsac;
*/
/**
* JedisPoolConfig 连接池
* @return
*/
@Bean
public JedisPoolConfig jedisPoolConfig() {
JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
// 最大空闲数
jedisPoolConfig.setMaxIdle(maxIdle);
// 连接池的最大数据库连接数
jedisPoolConfig.setMaxTotal(maxTotal);
// 最大建立连接等待时间
jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
// 逐出连接的最小空闲时间 默认1800000毫秒(30分钟)
jedisPoolConfig.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);
// 每次逐出检查时 逐出的最大数目 如果为负数就是 : 1/abs(n), 默认3
jedisPoolConfig.setNumTestsPerEvictionRun(numTestsPerEvictionRun);
// 逐出扫描的时间间隔(毫秒) 如果为负数,则不运行逐出线程, 默认-1
jedisPoolConfig.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);
// 是否在从池中取出连接前进行检验,如果检验失败,则从池中去除连接并尝试取出另一个
jedisPoolConfig.setTestOnBorrow(testOnBorrow);
// 在空闲时检查有效性, 默认false
jedisPoolConfig.setTestWhileIdle(testWhileIdle);
return jedisPoolConfig;
}
/**
* 单机版配置
* @Title: JedisConnectionFactory
* @param @param jedisPoolConfig
* @param @return
* @return JedisConnectionFactory
* @autor lpl
* @date 2018年2月24日
* @throws
*/
@Bean
public JedisConnectionFactory JedisConnectionFactory(JedisPoolConfig jedisPoolConfig){
JedisConnectionFactory JedisConnectionFactory = new JedisConnectionFactory(jedisPoolConfig);
//连接池
JedisConnectionFactory.setPoolConfig(jedisPoolConfig);
//IP地址
JedisConnectionFactory.setHostName("127.0.0.1");
//端口号
JedisConnectionFactory.setPort(6379);
//如果Redis设置有密码
//JedisConnectionFactory.setPassword(password);
//客户端超时时间单位是毫秒
JedisConnectionFactory.setTimeout(5000);
return JedisConnectionFactory;
}
/**
* 实例化 RedisTemplate 对象
*
* @return
*/
@Bean
public RedisTemplate<String, Object> functionDomainRedisTemplate(RedisConnectionFactory redisConnectionFactory) {
RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
initDomainRedisTemplate(redisTemplate, redisConnectionFactory);
return redisTemplate;
}
/**
* 设置数据存入 redis 的序列化方式,并开启事务
*
* @param redisTemplate
* @param factory
*/
private void initDomainRedisTemplate(RedisTemplate<String, Object> redisTemplate, RedisConnectionFactory factory) {
//如果不配置Serializer，那么存储的时候缺省使用String，如果用User类型存储，那么会提示错误User can't cast to String！
redisTemplate.setKeySerializer(new StringRedisSerializer());
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
redisTemplate.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());
// 开启事务
redisTemplate.setEnableTransactionSupport(true);
redisTemplate.setConnectionFactory(factory);
}
/**
* 注入封装RedisTemplate
* @Title: redisUtil
* @return RedisUtil
* @autor lpl
* @date 2017年12月21日
* @throws
*/
@Bean(name = "redisUtil")
public RedisUtil redisUtil(RedisTemplate<String, Object> redisTemplate) {
RedisUtil redisUtil = new RedisUtil();
redisUtil.setRedisTemplate(redisTemplate);
return redisUtil;
}}
7.utils的RdisUtil
package utils;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.util.CollectionUtils;
public class RedisUtil {
private RedisTemplate<String, Object> redisTemplate;
public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {
this.redisTemplate = redisTemplate;
}
//=============================common============================
/**
* 指定缓存失效时间
* @param key 键
* @param time 时间(秒)
* @return
*/
public boolean expire(String key,long time){
try {
if(time>0){
redisTemplate.expire(key, time, TimeUnit.SECONDS);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 根据key 获取过期时间
* @param key 键 不能为null
* @return 时间(秒) 返回0代表为永久有效
*/
public long getExpire(String key){
return redisTemplate.getExpire(key,TimeUnit.SECONDS);
}
/**
* 判断key是否存在
* @param key 键
* @return true 存在 false不存在
*/
public boolean hasKey(String key){
try {
return redisTemplate.hasKey(key);
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 删除缓存
* @param key 可以传一个值 或多个
*/
@SuppressWarnings("unchecked")
public void del(String ... key){
if(key!=null&&key.length>0){
if(key.length==1){
redisTemplate.delete(key[0]);
}else{
redisTemplate.delete(CollectionUtils.arrayToList(key));
}
}
}
//============================String=============================
/**
* 普通缓存获取
* @param key 键
* @return 值
*/
public Object get(String key){
return key==null?null:redisTemplate.opsForValue().get(key);
}
/**
* 普通缓存放入
* @param key 键
* @param value 值
* @return true成功 false失败
*/
public boolean set(String key,Object value) {
try {
redisTemplate.opsForValue().set(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 普通缓存放入并设置时间
* @param key 键
* @param value 值
* @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期
* @return true成功 false 失败
*/
public boolean set(String key,Object value,long time){
try {
if(time>0){
redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);
}else{
set(key, value);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 递增
* @param key 键
* @param by 要增加几(大于0)
* @return
*/
public long incr(String key, long delta){
if(delta<0){
throw new RuntimeException("递增因子必须大于0");
}
return redisTemplate.opsForValue().increment(key, delta);
}
/**
* 递减
* @param key 键
* @param by 要减少几(小于0)
* @return
*/
public long decr(String key, long delta){
if(delta<0){
throw new RuntimeException("递减因子必须大于0");
}
return redisTemplate.opsForValue().increment(key, -delta);
}
//================================Map=================================
/**
* HashGet
* @param key 键 不能为null
* @param item 项 不能为null
* @return 值
*/
public Object hget(String key,String item){
return redisTemplate.opsForHash().get(key, item);
}
/**
* 获取hashKey对应的所有键值
* @param key 键
* @return 对应的多个键值
*/
public Map<Object,Object> hmget(String key){
return redisTemplate.opsForHash().entries(key);
}
/**
* HashSet
* @param key 键
* @param map 对应多个键值
* @return true 成功 false 失败
*/
public boolean hmset(String key, Map<String,Object> map){
try {
redisTemplate.opsForHash().putAll(key, map);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* HashSet 并设置时间
* @param key 键
* @param map 对应多个键值
* @param time 时间(秒)
* @return true成功 false失败
*/
public boolean hmset(String key, Map<String,Object> map, long time){
try {
redisTemplate.opsForHash().putAll(key, map);
if(time>0){
expire(key, time);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
* @param key 键
* @param item 项
* @param value 值
* @return true 成功 false失败
*/
public boolean hset(String key,String item,Object value) {
try {
redisTemplate.opsForHash().put(key, item, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 向一张hash表中放入数据,如果不存在将创建
* @param key 键
* @param item 项
* @param value 值
* @param time 时间(秒) 注意:如果已存在的hash表有时间,这里将会替换原有的时间
* @return true 成功 false失败
*/
public boolean hset(String key,String item,Object value,long time) {
try {
redisTemplate.opsForHash().put(key, item, value);
if(time>0){
expire(key, time);
}
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 删除hash表中的值
* @param key 键 不能为null
* @param item 项 可以使多个 不能为null
*/
public void hdel(String key, Object... item){
redisTemplate.opsForHash().delete(key,item);
}
/**
* 判断hash表中是否有该项的值
* @param key 键 不能为null
* @param item 项 不能为null
* @return true 存在 false不存在
*/
public boolean hHasKey(String key, String item){
return redisTemplate.opsForHash().hasKey(key, item);
}
/**
* hash递增 如果不存在,就会创建一个 并把新增后的值返回
* @param key 键
* @param item 项
* @param by 要增加几(大于0)
* @return
*/
public double hincr(String key, String item,double by){
return redisTemplate.opsForHash().increment(key, item, by);
}
/**
* hash递减
* @param key 键
* @param item 项
* @param by 要减少记(小于0)
* @return
*/
public double hdecr(String key, String item,double by){
return redisTemplate.opsForHash().increment(key, item,-by);
}
//============================set=============================
/**
* 根据key获取Set中的所有值
* @param key 键
* @return
*/
public Set<Object> sGet(String key){
try {
return redisTemplate.opsForSet().members(key);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 根据value从一个set中查询,是否存在
* @param key 键
* @param value 值
* @return true 存在 false不存在
*/
public boolean sHasKey(String key,Object value){
try {
return redisTemplate.opsForSet().isMember(key, value);
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将数据放入set缓存
* @param key 键
* @param values 值 可以是多个
* @return 成功个数
*/
public long sSet(String key, Object...values) {
try {
return redisTemplate.opsForSet().add(key, values);
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 将set数据放入缓存
* @param key 键
* @param time 时间(秒)
* @param values 值 可以是多个
* @return 成功个数
*/
public long sSetAndTime(String key,long time,Object...values) {
try {
Long count = redisTemplate.opsForSet().add(key, values);
if(time>0) expire(key, time);
return count;
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 获取set缓存的长度
* @param key 键
* @return
*/
public long sGetSetSize(String key){
try {
return redisTemplate.opsForSet().size(key);
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 移除值为value的
* @param key 键
* @param values 值 可以是多个
* @return 移除的个数
*/
public long setRemove(String key, Object ...values) {
try {
Long count = redisTemplate.opsForSet().remove(key, values);
return count;
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
//===============================list=================================
/**
* 获取list缓存的内容
* @param key 键
* @param start 开始
* @param end 结束 0 到 -1代表所有值
* @return
*/
public List<Object> lGet(String key,long start, long end){
try {
return redisTemplate.opsForList().range(key, start, end);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 获取list缓存的长度
* @param key 键
* @return
*/
public long lGetListSize(String key){
try {
return redisTemplate.opsForList().size(key);
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
/**
* 通过索引 获取list中的值
* @param key 键
* @param index 索引 index>=0时， 0 表头，1 第二个元素，依次类推；index<0时，-1，表尾，-2倒数第二个元素，依次类推
* @return
*/
public Object lGetIndex(String key,long index){
try {
return redisTemplate.opsForList().index(key, index);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public boolean lSet(String key, Object value) {
try {
redisTemplate.opsForList().rightPush(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public boolean lSet(String key, Object value, long time) {
try {
redisTemplate.opsForList().rightPush(key, value);
if (time > 0) expire(key, time);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public boolean lSet(String key, List<Object> value) {
try {
redisTemplate.opsForList().rightPushAll(key, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 将list放入缓存
* @param key 键
* @param value 值
* @param time 时间(秒)
* @return
*/
public boolean lSet(String key, List<Object> value, long time) {
try {
redisTemplate.opsForList().rightPushAll(key, value);
if (time > 0) expire(key, time);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 根据索引修改list中的某条数据
* @param key 键
* @param index 索引
* @param value 值
* @return
*/
public boolean lUpdateIndex(String key, long index,Object value) {
try {
redisTemplate.opsForList().set(key, index, value);
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
/**
* 移除N个值为value
* @param key 键
* @param count 移除多少个
* @param value 值
* @return 移除的个数
*/
public long lRemove(String key,long count,Object value) {
try {
Long remove = redisTemplate.opsForList().remove(key, count, value);
return remove;
} catch (Exception e) {
e.printStackTrace();
return 0;
}
}
}
8.springboot的启动类
package Cotroller;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
//启动类
@SpringBootApplication
@MapperScan(value = "dao")
@ComponentScan(value = "utils")
@ComponentScan(value ="config")
public class applicationCode {
public static void main(String[]args){
SpringApplication.run(applicationCode.class,args);
}
}
综上所述:springboot+mybatis+redis的案例已经配置完毕----
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