Springboot整合Redis

基本的学习流程请查看 泥瓦匠的blog
http://www.bysocket.com/?cat=72

他的各个小节的例子
https://github.com/JeffLi1993/springboot-learning-example

sms-server

POM.XML，由于项目主要是用来发短信服务的，所以其他依赖包加上也无妨，不影响
打war包的方式如下面所示

<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.xialeme</groupId>
    <artifactId>sms-server</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <!-- 部署到tomcat中需要使用 -->
    <packaging>war</packaging>


    <properties>
        <start-class>com.Application</start-class><!-- main文件路径 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>


    <repositories><!--ali 代码库 -->
        <repository>
            <id>maven-ali</id>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>true</enabled>
                <updatePolicy>always</updatePolicy>
                <checksumPolicy>fail</checksumPolicy>
            </snapshots>
        </repository>
    </repositories>



    <!-- spring boot -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.0.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>



    <dependencies>
        <!-- 部署到tomcat中需要使用 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <!-- <scope>provided</scope> -->
        </dependency>



        <!-- spring boot -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>

        <!-- 引入 spring-boot-starter-actuator 监控需要-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>

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

        <!-- alibaba fastjson httpclient   -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.8</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5.3</version>
        </dependency>

        <!-- jpa -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </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-war-plugin</artifactId>
                <version>2.1.1</version>
                <configuration>
                    <encoding>${project.build.sourceEncoding}</encoding>
                    <skipTests>true</skipTests>
                    <!-- 打成war包时名子 -->
                    <warName>sms-server</warName>
                    <!-- mave时启用的main路径（因为其他包里面测试时也加了main函数） -->
                    <mainClass>${start-class}</mainClass>
                    <skip>true</skip><!-- 跳过测试 -->
                    <testFailureIgnore>true</testFailureIgnore>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

application.properties配置src/main/resources下面

# 监听端口
server.port=8081
#
#http://blog.youkuaiyun.com/xiaoyu411502/article/details/47865561


########################################################
### tomcat  配置
########################################################
# tomcat最大线程数，默认为200  
#server.tomcat.max-threads=800  
# tomcat的URI编码  
#server.tomcat.uri-encoding=UTF-8  
# 存放Tomcat的日志、Dump等文件的临时文件夹，默认为系统的tmp文件夹（如：C:\Users\Shanhy\AppData\Local\Temp）  
#server.tomcat.basedir=D:/springboot-log
# 打开Tomcat的Access日志，并可以设置日志格式的方法：  
#server.tomcat.access-log-enabled=true  
#server.tomcat.access-log-pattern=  
# accesslog目录，默认在basedir/logs  
#server.tomcat.accesslog.directory=  
# 日志文件目录  
logging.path=D:/springboot-log
# 日志文件名称，默认为spring.log  
logging.file=springboot.log  



########################################################
###datasource  配置MySQL数据源；
########################################################
spring.datasource.url=jdbc:mysql://192.168.10.10:3306/test
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
# Hibernate ddl auto (create, create-drop, update)  
spring.jpa.properties.hibernate.hbm2ddl.auto=update
spring.datasource.max-active=20
spring.datasource.max-idle=8
spring.datasource.min-idle=8
spring.datasource.initial-size=10



## Mybatis 配置 #由于使用的是jpa所以这里就注释掉mybatis
#mybatis.typeAliasesPackage=org.spring.springboot.domain
#mybatis.mapperLocations=classpath:mapper/*.xml


########################################################
### Java Persistence Api 自动进行建表
########################################################
# Specify the DBMS
spring.jpa.database = MYSQL
# Show or not log for each sqlquery
spring.jpa.show-sql = true
# hibernate ddl auto (create,create-drop, update)
spring.jpa.hibernate.ddl-auto = update
# Naming strategy
spring.jpa.hibernate.naming-strategy =org.hibernate.cfg.ImprovedNamingStrategy
# stripped before adding them tothe entity manager)
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect


########################################################
###REDIS (RedisProperties) redis基本配置；
########################################################
## Redis 配置
## Redis数据库索引（默认为0）
spring.redis.database=0
## Redis服务器地址
spring.redis.host=127.0.0.1
## Redis服务器连接端口
spring.redis.port=6379
## Redis服务器连接密码（默认为空）
spring.redis.password=
## 连接池最大连接数（使用负值表示没有限制）
spring.redis.pool.max-active=8
## 连接池最大阻塞等待时间（使用负值表示没有限制）
spring.redis.pool.max-wait=-1
## 连接池中的最大空闲连接
spring.redis.pool.max-idle=8
## 连接池中的最小空闲连接
spring.redis.pool.min-idle=0
## 连接超时时间（毫秒）
spring.redis.timeout=0

Application 不能放在java.main的根目录，必须建一个目录存放不然保错
它会自动扫描它所在目录下的子目录的相关注解

package com;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.context.embedded.FilterRegistrationBean;
import org.springframework.boot.context.web.SpringBootServletInitializer;
import org.springframework.context.annotation.Bean;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import com.common.filter.AuthFilter;


/*******
 * Springboot 默认不需要继承SpringBootServletInitializer
 * <p>如果部署到外部的TOMCAT则需要继承SpringBootServletInitializer，并且重写configure
 * pom中添加<packaging>war</packaging>和spring-boot-starter-tomcat.jar
 * </p>
 * @author bamboo
 *
 */
@RestController
@SpringBootApplication
public class Application  {


    @Autowired
    private RedisTemplate redisTemplate;

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Application.class);
    }

    @RequestMapping("/")
    //@ResponseBody
    String home() {

        return "sms server";
    }


    @RequestMapping("/city")
    //@ResponseBody
    String city(String  id) {
         // 从缓存中获取城市信息
        String key = "city_" + id;
        ValueOperations<String, String> operations = redisTemplate.opsForValue();

        // 缓存存在
        boolean hasKey = redisTemplate.hasKey(key);
        if (hasKey) {
            String city = operations.get(key);

            System.out.println("CityServiceImpl.findCityById() : 从缓存中获取了城市 >> " + city.toString());
            return city;
        }

        // 从 DB 中获取城市信息
        String city = "空城";

        // 插入缓存
        operations.set(key, city, 120, TimeUnit.SECONDS);
        System.out.println("CityServiceImpl.findCityById() : 城市插入缓存 >> " + city.toString());

        return city;
    }

    public static void main(String[] args) throws Exception {
        SpringApplication.run(Application.class, args);
    }



}

运行Application main方法

刷新两次浏览器，可以看到控制台打印如下
http://localhost:8081/city?id=1

CityServiceImpl.findCityById() : 城市插入缓存 >> 空城
CityServiceImpl.findCityById() : 从缓存中获取了城市 >> 空城

可以在redis desktop manager 刷新看到数据已经插入进来了