SSM集成Redis做缓存

本文介绍了一个基于Spring、Spring MVC和MyBatis(SSM)的项目如何整合Redis实现缓存功能。通过配置和代码示例展示了如何利用Redis进行数据缓存,减少数据库访问压力。

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闲来无事,今天就研究一下SSM架构集成Redis做缓存。话不多说了,直接贴代码吧。后面会有整个项目的源码还有sql,需要的话大家可以去下载。

  •  先创建一个基于maven的空项目
  • 项目的整体结构

  • pom.xml

    
	
     
      4.0.0
     
	
     
      BookMaven
     
	
     
      BookMaven
     
	
     
      0.0.1-SNAPSHOT
     
	
     
      war
     
	
     
		
      
		
      
       4.0.2.RELEASE
      
		
      
		
      
       3.2.6
      
		
      
		
      
       1.7.7
      
		
      
       1.2.17
      
	
     

	
     
		
      
			
       
        junit
       
			
       
        junit
       
			
       
        4.11
       
			
       
			
       
        test
       
		
      
		
      
		
      
			
       
        org.springframework
       
			
       
        spring-core
       
			
       
        4.0.2.RELEASE
       
		
      

		
      
			
       
        org.springframework
       
			
       
        spring-web
       
			
       
        4.0.2.RELEASE
       
		
      
		
      
			
       
        org.springframework
       
			
       
        spring-oxm
       
			
       
        4.0.2.RELEASE
       
		
      
		
      
			
       
        org.springframework
       
			
       
        spring-tx
       
			
       
        4.0.2.RELEASE
       
		
      

		
      
			
       
        org.springframework
       
			
       
        spring-jdbc
       
			
       
        4.0.2.RELEASE
       
		
      

		
      
			
       
        org.springframework
       
			
       
        spring-webmvc
       
			
       
        4.0.2.RELEASE
       
		
      
		
      
			
       
        org.springframework
       
			
       
        spring-aop
       
			
       
        4.0.2.RELEASE
       
		
      

		
      
			
       
        org.springframework
       
			
       
        spring-context-support
       
			
       
        4.0.2.RELEASE
       
		
      

		
      
			
       
        org.springframework
       
			
       
        spring-test
       
			
       
        4.0.2.RELEASE
       
		
      
		
      
		
      
			
       
        org.mybatis
       
			
       
        mybatis
       
			
       
        3.2.6
       
		
      
		
      
		
      
			
       
        org.mybatis
       
			
       
        mybatis-spring
       
			
       
        1.2.2
       
		
      

		
      
		
      
			
       
        commons-dbcp
       
			
       
        commons-dbcp
       
			
       
        1.2.2
       
		
      
		
      
		
      
			
       
        jstl
       
			
       
        jstl
       
			
       
        1.2
       
		
      
		
      
		
      
		
      
			
       
        log4j
       
			
       
        log4j
       
			
       
        1.2.17
       
		
      


		
      
		
      
			
       
        com.alibaba
       
			
       
        fastjson
       
			
       
        1.1.41
       
		
      
		
      
			
       
        org.slf4j
       
			
       
        slf4j-api
       
			
       
        1.7.7
       
		
      

		
      
			
       
        org.slf4j
       
			
       
        slf4j-log4j12
       
			
       
        1.7.7
       
		
      
		
      
		
      
		
      
			
       
        org.codehaus.jackson
       
			
       
        jackson-mapper-asl
       
			
       
        1.9.13
       
		
      
		
      
		
      
			
       
        commons-fileupload
       
			
       
        commons-fileupload
       
			
       
        1.3.1
       
		
      
		
      
			
       
        commons-io
       
			
       
        commons-io
       
			
       
        2.4
       
		
      
		
      
			
       
        commons-codec
       
			
       
        commons-codec
       
			
       
        1.9
       
		
      
		
      
			
       
        mysql
       
			
       
        mysql-connector-java
       
			
       
        5.1.34
       
		
      
		
      
			
       
        org.aspectj
       
			
       
        aspectjweaver
       
			
       
        1.7.4
       
		
      

		
      
        
      
            
       
        org.springframework.data
       
            
       
        spring-data-redis
       
            
       
        1.6.2.RELEASE
       
        
      
        
      
        
      
            
       
        redis.clients
       
            
       
        jedis
       
            
       
        2.8.0
       
        
      
        
      
        
      
            
       
        org.mybatis
       
            
       
        mybatis-ehcache
       
            
       
        1.0.0
       
        
      
	
     
	
     
		
      
			
       
				
        
         org.apache.maven.plugins
        
				
        
         maven-compiler-plugin
        
				
        
					
         1.7
					
         
          1.7
         
				
        
			
       
		
      
	
     


    

  • applicationContext.xml

    

	
     
	
     
		
      
			
       
				
        
         classpath:db.properties
        
				
        
         classpath:redis.properties
        
			
       
		
      
	
     
	
	
     
	
     
		
      
		
      
		
      
		
      
	
     
	
     
	
     
	
     
	
     
		
      
	
     

	
     

	
     
		
      
		
      
		
      
		
      
		
      
		
      
	
     

	
     
	
     
		
      
		
      
		
      
		
      
	
     
	
     
	
     
		
      
		
      
		
      
	
     
	
	
     
	
     
	
     
	
     
	
	
	
     
	
     
		
      
	
     

	
     
	
     
		
      
			
       
			
       
			
       
			
       
			
       
			
       
			
       
			
       
		
      
	
     
	
     
	
     
		
      
	
     


    

  • db.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test
jdbc.username=root
jdbc.password=123456

  • log4j.properties
### Log4j\u914D\u7F6E ###
### \u4E0ESpring\u7ED3\u5408\u9700\u8981\u5728web.xml\u4E2D\u6307\u5B9A\u6B64\u6587\u4EF6\u4F4D\u7F6E\uFF0C\u5E76\u6DFB\u52A0\u76D1\u542C\u5668 ###
#\u5B9A\u4E49log4j\u7684\u8F93\u51FA\u7EA7\u522B\u548C\u8F93\u51FA\u76EE\u7684\u5730\uFF08\u76EE\u7684\u5730\u53EF\u4EE5\u81EA\u5B9A\u4E49\u540D\u79F0\uFF0C\u548C\u540E\u9762\u7684\u5BF9\u5E94\uFF09
#[ level ] , appenderName1 , appenderName2
log4j.rootLogger=DEBUG,console,file
 
#-----------------------------------#
#1 \u5B9A\u4E49\u65E5\u5FD7\u8F93\u51FA\u76EE\u7684\u5730\u4E3A\u63A7\u5236\u53F0
log4j.appender.console = org.apache.log4j.ConsoleAppender
log4j.appender.console.Target = System.out
log4j.appender.console.Threshold=DEBUG
####\u53EF\u4EE5\u7075\u6D3B\u5730\u6307\u5B9A\u65E5\u5FD7\u8F93\u51FA\u683C\u5F0F\uFF0C\u4E0B\u9762\u4E00\u884C\u662F\u6307\u5B9A\u5177\u4F53\u7684\u683C\u5F0F ###
#%c: \u8F93\u51FA\u65E5\u5FD7\u4FE1\u606F\u6240\u5C5E\u7684\u7C7B\u76EE\uFF0C\u901A\u5E38\u5C31\u662F\u6240\u5728\u7C7B\u7684\u5168\u540D
#%m: \u8F93\u51FA\u4EE3\u7801\u4E2D\u6307\u5B9A\u7684\u6D88\u606F,\u4EA7\u751F\u7684\u65E5\u5FD7\u5177\u4F53\u4FE1\u606F 
#%n: \u8F93\u51FA\u4E00\u4E2A\u56DE\u8F66\u6362\u884C\u7B26\uFF0CWindows\u5E73\u53F0\u4E3A"/r/n"\uFF0CUnix\u5E73\u53F0\u4E3A"/n"\u8F93\u51FA\u65E5\u5FD7\u4FE1\u606F\u6362\u884C
log4j.appender.console.layout = org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=[%c]-%m%n
 
#-----------------------------------#
#2 \u6587\u4EF6\u5927\u5C0F\u5230\u8FBE\u6307\u5B9A\u5C3A\u5BF8\u7684\u65F6\u5019\u4EA7\u751F\u4E00\u4E2A\u65B0\u7684\u6587\u4EF6 
log4j.appender.file = org.apache.log4j.RollingFileAppender
#\u65E5\u5FD7\u6587\u4EF6\u8F93\u51FA\u76EE\u5F55
log4j.appender.file.File=log/tibet.log
#\u5B9A\u4E49\u6587\u4EF6\u6700\u5927\u5927\u5C0F
log4j.appender.file.MaxFileSize=10mb
###\u8F93\u51FA\u65E5\u5FD7\u4FE1\u606F###
#\u6700\u4F4E\u7EA7\u522B
log4j.appender.file.Threshold=ERROR
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=[%p][%d{yy-MM-dd}][%c]%m%n
#4 mybatis \u663E\u793ASQL\u8BED\u53E5\u90E8\u5206
log4j.logger.org.mybatis=DEBUG
#log4j.logger.cn.tibet.cas.dao=DEBUG
#log4j.logger.org.mybatis.common.jdbc.SimpleDataSource=DEBUG#
#log4j.logger.org.mybatis.common.jdbc.ScriptRunner=DEBUG#
#log4j.logger.org.mybatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG#
#log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.ResultSet=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

  • redis.properties
# Redis settings  
redis.host=192.168.220.154
redis.port=6379
redis.pass=

redis.maxIdle=300  
redis.maxActive=600  
redis.maxWait=1000  
redis.testOnBorrow=true

redis.pass= 我没有设置密码 所以是空的

  • springmvc.xml

   

	
    
	
    
	
    


	
    
	
    
		
     
		
     
		
     
		
     
	
    
	
    
	
    
		
     
		
     
			
      
       5242880
      
		
     
	
    
	
    
		
     
			
      
				
       
				
       
        error_fileupload
       
			
      
		
     
	
    
	
    



   

  • sqlMapConfig.xml

     


     

	
      

	
      

	
      
	
      

		
       
		
       

		
       
		
       

		
       
		
       

		
       
		
       

	
      

	
      
	
      
		
       
		
       
	
      

	
      

	
      

     

  • PersonController
package com.book.controller;

import java.util.ArrayList;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.alibaba.fastjson.JSONObject;
import com.book.model.Person;
import com.book.service.PersonService;

@Controller
public class PersonController {
	  @Autowired
	    private PersonService personService;

	    public void setUserService(PersonService personService) {
	        this.personService = personService;
	    }

	    @RequestMapping("/person")
	    public ModelAndView person(){
	        Person person =personService.find(2);
	        String str= person.toString();
	        return new ModelAndView("message","str",str);
	    }
	    
	    @RequestMapping("/personlist")
	    public ModelAndView personlist(){
	        List
    
      person= new ArrayList
     
      ();
	            person=personService.FindAll();
	        JSONObject json=new JSONObject();
	        json.put("person", person);
	        return new ModelAndView("message","str",json);
	    }
	    
	    @RequestMapping("/addPerson")
	    public ModelAndView addPerson(){
	    	Person person = new Person();
	    	person.setName("hehe");
	    	person.setAge(22);
	    	personService.addPerson(person);
	    	return new ModelAndView("message","str","aa");
	    }
	    
	    @RequestMapping("/getById")
	    public ModelAndView getById(){
	        Person person =personService.getById(2);
	        String str= person.toString();
	        return new ModelAndView("message","str",str);
	    }
}

     
    

  • PersonMapper
package com.book.dao;

import java.util.List;

import com.book.model.Person;

public interface  PersonMapper {
	public Person find(int id);
    public List
    
      FindAll();
  
    public Person getByName(String name);
    
    public void addPerson(Person person);
    
    public Person getById(int id);
    
}

    

  • PersonMapper.xml

    



    
	
     
    
     
        
      
        
      
        
           
    
     
   
     
    
    
     
        
    
     
    
    
     
    
     
     
    
    
      
     

    

 <cache eviction="LRU" type="com.book.util.RedisCache" /> 这里是最重要的部分


  • Person
package com.book.model;

import java.io.Serializable;

public class Person implements Serializable{
	  private Integer id;
	    private String  name;
	    private Integer age;
	    public Integer getId() {
	        return id;
	    }
	    public void setId(Integer id) {
	        this.id = id;
	    }
	    public String getName() {
	        return name;
	    }
	    public void setName(String name) {
	        this.name = name;
	    }
	    public Integer getAge() {
	        return age;
	    }
	    public void setAge(Integer age) {
	        this.age = age;
	    }
	    
	    public Person(){
	        super();
	    }
	    
	     @Override
	        public String toString() {
	            return "Person [Id=" + id + ", Name=" + name
	                    + ", age=" + age + "]";
	        }
}

  • PersonService
package com.book.service;

import java.util.List;

import com.book.model.Person;

public interface PersonService {
	public Person find(int id);

	public List
    
      FindAll();

	public Person getByName(String name);

	public void addPerson(Person person);

	public Person getById(int id);
}

    

  • PersonServiceImpl
package com.book.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.book.dao.PersonMapper;
import com.book.model.Person;
import com.book.service.PersonService;

@Service
public class PersonServiceImpl implements PersonService {
	@Autowired
	private PersonMapper personDao;

	public void setUserDao(PersonMapper personDao) {
		this.personDao = personDao;
	}

	public Person find(int id) {
		return personDao.find(id);
	}

	public List
    
      FindAll() {
		return personDao.FindAll();
	}

	public Person getByName(String name) {
		return personDao.getByName(name);
	}

	public void addPerson(Person person) {
		 personDao.addPerson(person);
	}

	public Person getById(int id) {
		return personDao.getById(id);
	}
}

    

  • RedisCache
package com.book.util;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

import org.apache.ibatis.cache.Cache;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.redis.connection.jedis.JedisConnection;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;

import redis.clients.jedis.exceptions.JedisConnectionException;
/**
 * 
 * @描述: 使用第三方内存数据库Redis作为二级缓存
 * @版权: Copyright (c) 2016
 * @作者:
 * @版本: 1.0
 * @创建日期:
 * @创建时间:
 */
public class RedisCache implements Cache {
	 private static final Logger logger = LoggerFactory.getLogger(RedisCache.class);

	    private static JedisConnectionFactory jedisConnectionFactory;

	    private final String id;

	    /**
	     * The {@code ReadWriteLock}.
	     */
	    private final ReadWriteLock readWriteLock = new ReentrantReadWriteLock();

	    public RedisCache(final String id) {
	        if (id == null) {
	            throw new IllegalArgumentException("Cache instances require an ID");
	        }
	        logger.debug("MybatisRedisCache:id=" + id);
	        this.id = id;
	    }

	    public void clear() {
	        JedisConnection connection = null;
	        try {
	            connection = jedisConnectionFactory.getConnection();
	            connection.flushDb();
	            connection.flushAll();
	        } catch (JedisConnectionException e) {
	            e.printStackTrace();
	        } finally {
	            if (connection != null) {
	                connection.close();
	            }
	        }
	    }

	    public String getId() {
	        return this.id;
	    }

	    public Object getObject(Object key) {
	        Object result = null;
	        JedisConnection connection = null;
	        try {
	            connection = jedisConnectionFactory.getConnection();
	            RedisSerializer serializer = new JdkSerializationRedisSerializer();
	            result = serializer.deserialize(connection.get(serializer.serialize(key)));
	        } catch (JedisConnectionException e) {
	            e.printStackTrace();
	        } finally {
	            if (connection != null) {
	                connection.close();
	            }
	        }
	        return result;
	    }

	    public ReadWriteLock getReadWriteLock() {
	        // TODO Auto-generated method stub
	        return this.readWriteLock;
	    }

	    public int getSize() {
	        int result = 0;
	        JedisConnection connection = null;
	        try {
	            connection = jedisConnectionFactory.getConnection();
	            result = Integer.valueOf(connection.dbSize().toString());
	        } catch (JedisConnectionException e) {
	            e.printStackTrace();
	        } finally {
	            if (connection != null) {
	                connection.close();
	            }
	        }
	        return result;
	    }

	    public void putObject(Object key, Object value) {
	        JedisConnection connection = null;
	        try {
	            connection = jedisConnectionFactory.getConnection();
	            RedisSerializer serializer = new JdkSerializationRedisSerializer();
	            connection.set(serializer.serialize(key), serializer.serialize(value));
	        } catch (JedisConnectionException e) {
	            e.printStackTrace();
	        } finally {
	            if (connection != null) {
	                connection.close();
	            }
	        }
	    }

	    public Object removeObject(Object key) {
	        JedisConnection connection = null;
	        Object result = null;
	        try {
	            connection = jedisConnectionFactory.getConnection();
	            RedisSerializer serializer = new JdkSerializationRedisSerializer();
	            result = connection.expire(serializer.serialize(key), 0);
	        } catch (JedisConnectionException e) {
	            e.printStackTrace();
	        } finally {
	            if (connection != null) {
	                connection.close();
	            }
	        }
	        return result;
	    }

	    public static void setJedisConnectionFactory(JedisConnectionFactory jedisConnectionFactory) {
	        RedisCache.jedisConnectionFactory = jedisConnectionFactory;
	    }
}




       

  • RedisCacheTransfer
package com.book.util;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;

/**
 * 
 * @描述: 静态注入中间类

 */
public class RedisCacheTransfer{
	  @Autowired
	    public void setJedisConnectionFactory(JedisConnectionFactory jedisConnectionFactory) {
	        RedisCache.setJedisConnectionFactory(jedisConnectionFactory);
	        
	    }
}




  • web.xml

             

             
	
              
               BookSSM
              

	
              
	
              
		
               
                contextConfigLocation
               
		
               
                classpath:applicationContext.xml
               
	
              

	
              
		
               
                org.springframework.web.util.Log4jConfigListener
               
	
              
	
              
	
              
		
               
                log4jConfigLocation
               
		
               
                classpath:log4j.properties
               
	
              

	
              
		
               
                org.springframework.web.context.ContextLoaderListener
               
	
              

	
              
	
              
		
               
                springmvc
               
		
               
                org.springframework.web.servlet.DispatcherServlet
               
		
               
		
               
			
                
                 contextConfigLocation
                
			
                
                 classpath:springmvc.xml
                
		
               
	
              

	
              
		
               
                springmvc
               
		
               
                /
               
	
              

	
              
	
              
		
               
                CharacterEncodingFilter
               
		
               
                org.springframework.web.filter.CharacterEncodingFilter
               
		
               
			
                
                 encoding
                
			
                
                 utf-8
                
		
               
	
              
	
              
		
               
                CharacterEncodingFilter
               
		
               
                /*
               
	
              

	
              
		
               
                index.jsp
               
	
              

             

  • index.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>




          
Insert title here


 查看全部数据
 查找


  • message.jsp
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>




          
Insert title here


 ${str}


  • sql
/*
Navicat MySQL Data Transfer

Source Server         : localhost
Source Server Version : 50709
Source Host           : localhost:3306
Source Database       : test

Target Server Type    : MYSQL
Target Server Version : 50709
File Encoding         : 65001

Date: 2017-10-20 11:55:07
*/

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for `person`
-- ----------------------------
DROP TABLE IF EXISTS `person`;
CREATE TABLE `person` (
  `ID` int(11) NOT NULL AUTO_INCREMENT,
  `NAME` varchar(20) DEFAULT NULL,
  `AGE` int(5) DEFAULT NULL,
  PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8;

-- ----------------------------
-- Records of person
-- ----------------------------
INSERT INTO `person` VALUES ('2', 'hehe', '22');
INSERT INTO `person` VALUES ('3', 'hehe', '22');
INSERT INTO `person` VALUES ('4', 'hehe', '22');
INSERT INTO `person` VALUES ('5', 'hehe', '22');
INSERT INTO `person` VALUES ('6', 'hehe', '22');
INSERT INTO `person` VALUES ('7', 'hehe', '22');


启动项目  访问http://localhost:8070/BookSSM/index.jsp    
点击查看全部数据 或者 查找


控制台显示



Redis中显示



再执行全部数据 或者 查找 不再打印sql语句了,说明直接从缓存中获取数据了 




至此整个SSM整合完成 有问题的可以在下面留言
源代码下载地址:http://download.youkuaiyun.com/download/xingkong_00123/10031846


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