springmvc Redis配置使用(Jedis)

最新推荐文章于 2024-04-12 16:22:04 发布

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本文介绍如何在Spring MVC项目中整合Redis，包括依赖配置、连接池设置及简单操作示例。

首先要在本地安装redis，具体察看（mac安装）：http://blog.youkuaiyun.com/kirito_j/article/details/79079411

项目环境：maven，springmvc

pom.xml

<dependency>
      <groupId>org.springframework.data</groupId>
      <artifactId>spring-data-redis</artifactId>
      <version>1.0.2.RELEASE</version>
    </dependency>

    <dependency>
      <groupId>redis.clients</groupId>
      <artifactId>jedis</artifactId>
      <version>2.1.0</version>
    </dependency>

web.xml

<servlet>
    <servlet-name>springmvc</servlet-name>
    <!--使用了springframe的servlet-->
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:/META-INF/springmvc-servlet.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

applicaton.properties

# Redis settings
redis.host=127.0.0.1
redis.port=6379
redis.pass=
redis.maxIdle=300
redis.maxActive=600
redis.maxWait=1000
redis.testOnBorrow=true

springmvc-servlet.xml

<!-- redis缓存数据库的相关配置 -->
    <context:property-placeholder
            ignore-resource-not-found="true" location="classpath*:application.properties" />

    <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
        <property name="maxIdle" value="${redis.maxIdle}" />
        <property name="maxActive" value="${redis.maxActive}" />
        <property name="maxWait" value="${redis.maxWait}" />
        <property name="testOnBorrow" value="${redis.testOnBorrow}" />
    </bean>

    <bean id="connectionFactory"
          class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
          p:host-name="${redis.host}" p:port="${redis.port}" p:password="${redis.pass}"
          p:pool-config-ref="poolConfig" />

    <bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
        <property name="connectionFactory" ref="connectionFactory" />
    </bean>

使用方法，利用@Autowired注入RedisTemplate<k,v>
RedisTemplate具体用法察看：https://www.jianshu.com/p/7bf5dc61ca06

TestInterceptor.java

package com.sms.interceptor;

import com.sms.model.CourseEntity;
import com.sms.repository.CourseRepository;
import com.sms.service.redis.RedisService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.Map;

public class TestInterceptor implements HandlerInterceptor {

    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    public boolean preHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o) throws Exception {

        redisTemplate.opsForValue().set("sessionId","1111");
        System.out.println("sessionId "+ redisTemplate.opsForValue().get("sessionId"));

        return true;
    }

    public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
        System.out.println("post");
    }

    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {
        System.out.println("after");
    }
}