SpringMVC整合Redis实例

于 2017-09-05 14:09:30 发布
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文章标签： maven Jedis Redis spring mvc
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本文链接：https://blog.youkuaiyun.com/qq_15914047/article/details/77850835
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本文介绍了一个使用Spring MVC框架结合Redis实现的数据操作示例项目。该项目通过Maven搭建，详细展示了如何配置Spring、Redis以及实现增删查改等基本功能。

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1.新建maven工程

2.导入jar包

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.nineclient</groupId>
  <artifactId>redis_spring</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>redis_spring Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
	<spring.version>3.0.5.RELEASE</spring.version>
  </properties>
  <dependencies>
    <dependency>
	  <groupId>javax.servlet</groupId>
	    <artifactId>servlet-api</artifactId>
		<version>2.5</version>
		<scope>provided</scope>
	</dependency>
	<!-- config redis data and client jar--> 
    <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>
    
    <!-- spring begin -->  
	<dependency>  
	    <groupId>org.springframework</groupId>  
	    <artifactId>spring-webmvc</artifactId>  
	    <version>${spring.version}</version>  
	</dependency>  
	  
	<dependency>  
	    <groupId>org.springframework</groupId>  
	    <artifactId>spring-jdbc</artifactId>  
	    <version>${spring.version}</version>  
	</dependency>  
	  
	<dependency>  
	    <groupId>org.springframework</groupId>  
	    <artifactId>spring-context</artifactId>  
	    <version>${spring.version}</version>  
	</dependency>  
	  
	<dependency>  
	    <groupId>org.springframework</groupId>  
	    <artifactId>spring-aop</artifactId>  
	    <version>${spring.version}</version>  
	</dependency>  
	  
	<dependency>  
	    <groupId>org.springframework</groupId>  
	    <artifactId>spring-core</artifactId>  
	    <version>${spring.version}</version>
	</dependency>  
	  
	<dependency>  
	    <groupId>org.springframework</groupId>  
	    <artifactId>spring-test</artifactId>  
	    <version>${spring.version}</version>  
	</dependency>
	<!-- spring end -->
	<dependency>
	    <groupId>log4j</groupId>
	    <artifactId>log4j</artifactId>
	    <version>1.2.17</version>
	</dependency>
  </dependencies>
  <build>
    <finalName>redis_spring</finalName>
  </build>
</project>

3.编写web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" aaxmlns="http://java.sun.com/xml/ns/j2ee"
    aaxmlns:xsi="w3.org/2001/XMLSchema-instance"
    aaxsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <display-name>SpringMVCRedis</display-name>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
 
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/context/applicationContext.xml</param-value>
    </context-param>
 
    <filter>
        <filter-name>SpringEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter
        </filter-class>
 
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
 
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
 
    <filter-mapping>
        <filter-name>SpringEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
 
    <servlet>
        <servlet-name>mvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/context/dispatcher-servlet.xml</param-value>
        </init-param>
        <load-on-startup>2</load-on-startup>
    </servlet>
 
    <servlet-mapping>
        <servlet-name>mvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
 
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>
4. 3个xml文件和1个properties文件

5. applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
      http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd 
      http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd         
      http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
     
     <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>
     
     <!-- 配置扫描路径 -->
     <context:component-scan base-package="com.nineclient">
     	<!-- 只扫描Service，也可以添加Repostory，但是要把Controller排除在外，Controller由spring-mvc.xml去加载 -->
     	<!-- <context:include-filter type="annotation" expression="org.springframework.stereotype.Service" /> -->
     	<!-- <context:include-filter type="annotation" expression="org.springframework.stereotype.Repository" /> -->
     	<!-- <context:include-filter type="annotation" expression="org.springframework.stereotype.Component" /> -->
     	<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
     </context:component-scan>
    <!-- 引入同文件夹下的redis属性配置文件 -->
    <import resource="redis-context.xml"/>
 
</beans>

6. dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:mvc="http://www.springframework.org/schema/mvc"
     xsi:schemaLocation="http://www.springframework.org/schema/beans
         http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context-3.0.xsd
         http://www.springframework.org/schema/mvc
         http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
 <!-- 启用MVC注解 -->
    <mvc:annotation-driven />
    
    <!-- 静态资源文件，不会被Spring MVC拦截 -->
    <mvc:resources location="/resources/" mapping="/resources/**"/>
    
    <!-- 指定Sping组件扫描的基本包路径 -->
    <context:component-scan base-package="com.nineclient" >
    	<!-- 这里只扫描Controller，不可重复加载Service -->
    	<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
	
  	<!-- JSP视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
        <property name="prefix" value="/WEB-INF/views/" />  
        <property name="suffix" value=".jsp" />
	<!--  定义其解析视图的order顺序为1 -->
        <property name="order" value="1" />
    </bean>
 
</beans>

7. redis-context.xml

<beans     xmlns="http://www.springframework.org/schema/beans" 
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:p="http://www.springframework.org/schema/p" 
           xmlns:tx="http://www.springframework.org/schema/tx"
           xmlns:context="http://www.springframework.org/schema/context"
           xsi:schemaLocation="
            http://www.springframework.org/schema/beans 
            http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
            http://www.springframework.org/schema/tx 
            http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context-3.0.xsd
               ">
    
    <!-- scanner redis properties  --> 
    <context:property-placeholder location="/WEB-INF/property/redis.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>      
     
</beans>

8. redis.properties

redis.host=127.0.0.1
redis.port=6379
redis.pass=
  
redis.maxIdle=300
redis.maxActive=300
redis.maxWait=10000
redis.testOnBorrow=true

9. base

package com.nineclient.base;

import java.io.Serializable;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializer;

public abstract class RedisGeneratorDao<K extends Serializable, V extends Serializable> {
	
	@Autowired
	protected RedisTemplate<K,V> redisTemplate;
	
	/** 
     * 设置redisTemplate 
     * @param redisTemplate the redisTemplate to set 
     */ 
	public void setRedisTemplate(RedisTemplate<K,V> redisTemplate) {
		this.redisTemplate = redisTemplate;
	}

	 /** 
     * 获取 RedisSerializer
     */ 
	protected RedisSerializer<String> getRedisSerializer() {
		return redisTemplate.getStringSerializer();
	}
	
}

package com.nineclient.base;

import java.io.Serializable;

public abstract class RedisModel implements Serializable {

	/**
	 * 
	 */
	private static final long serialVersionUID = -5694777712781877083L;

}

package com.nineclient.base;

import java.util.Map;

import org.springframework.web.servlet.ModelAndView;

public class RedisMultiController{

	protected ModelAndView toView(final String url, final Map<String, Object> map) {
		
		ModelAndView view = new ModelAndView(url);
		return view;
	}
}

10. model

package com.nineclient.model;

import com.nineclient.base.RedisModel;


public class Member extends RedisModel{

	private static final long serialVersionUID = -2243145333805149923L;
	private String id;
	private String nickname;
	
	public Member() {
		
	}
	
	public Member(String id, String nickname) {
		this.setId(id);
		this.setNickname(nickname);
	}
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getNickname() {
		return nickname;
	}
	public void setNickname(String nickname) {
		this.nickname = nickname;
	}

}

11. controller 

package com.nineclient.controller;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

import com.nineclient.base.RedisMultiController;
import com.nineclient.model.Member;
import com.nineclient.service.MemberService;

@Controller
@RequestMapping(value = "/member")
public class MemberController extends RedisMultiController{

	@Autowired
	private MemberService  memberService;
	
	@RequestMapping(value = { "/add", "/add.html" }, method = { RequestMethod.GET })
    public ModelAndView add(HttpServletRequest request,
            HttpServletResponse response) {
        Map<String, Object> map = new HashMap<String, Object>();
        Member member = new Member();
        member.setId("1");
        member.setNickname("fumingyuan");
        this.memberService.add(member);
         
        return toView("add", map);
    }
	
    @RequestMapping(value = { "/add", "/add.html" }, method = { RequestMethod.POST })
    public ModelAndView addMember(HttpServletRequest request,
            HttpServletResponse response,
            @ModelAttribute("member") Member member) {
        Map<String, Object> map = new HashMap<String, Object>();
        System.out.println(member);
        map.put("message", "成功添加数据到库," + member);
        this.memberService.add(member);
        return toView("message", map);
    }
	
    @RequestMapping(value = { "/{id:\\d+}/query", "/{id:\\d+}/query.html" }, method = {
            RequestMethod.GET, RequestMethod.POST })
    public ModelAndView queryMember(HttpServletRequest request,
            HttpServletResponse response, @PathVariable("id") String id) {
        Map<String, Object> map = new HashMap<String, Object>();
        System.out.println(id);
        //id = "1";
        Member member = this.memberService.get(id);
        if (null != member) {
            map.put("message", "查询Id=" + id + "的用户名为:" + member.getNickname());
        } else {
            map.put("message", "没有查询到与Id=" + id + "相关的数据");
        }
        return toView("query", map);
    }
    
    @RequestMapping(value = { "/{id:\\d+}/delete", "/{id:\\d+}/delete.html" }, method = {
            RequestMethod.GET, RequestMethod.POST })
    public ModelAndView deleteMember(HttpServletRequest request,
            HttpServletResponse response, @PathVariable("id") String id) {
        Map<String, Object> map = new HashMap<String, Object>();
        try {
            this.memberService.delete(id);
            map.put("message", "删除Id为" + id + "的用户成功.");
        } catch (Exception e) {
            e.printStackTrace();
            map.put("message", "删除Id为" + id + "的用户失败, " + e.getMessage());
        }
        return toView("message", map);
    }
    
}

12. service

package com.nineclient.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import com.nineclient.dao.MemberDao;
import com.nineclient.model.Member;
import com.nineclient.service.MemberService;

@Service
public class MemberServiceImpl implements MemberService{

	@Resource(name="memberDao")
	private MemberDao memberDao;

	@Override
	public boolean add(Member member) {
		return memberDao.add(member);
	}

	@Override
	public boolean add(List<Member> list) {
		return memberDao.add(list);
	}

	@Override
	public void delete(String key) {
		memberDao.delete(key);
	}

	@Override
	public Member get(String keyId) {
		return memberDao.get(keyId);
	}

	public MemberDao getMemberDao() {
		return memberDao;
	}

	public void setMemberDao(MemberDao memberDao) {
		this.memberDao = memberDao;
	}
	

}

13. dao

package com.nineclient.dao.impl;

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

import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.stereotype.Repository;

import com.nineclient.base.RedisGeneratorDao;
import com.nineclient.dao.MemberDao;
import com.nineclient.model.Member;

@Repository(value="memberDao")
public class MemberDaoImpl extends RedisGeneratorDao<String,Member> implements MemberDao{

	/***
	 * 添加对象
	 */
	public boolean add(final Member member) {
		boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
			@Override
			public Boolean doInRedis(RedisConnection connection)
					throws DataAccessException {
				RedisSerializer<String> serializer = getRedisSerializer();
				byte[] key = serializer.serialize(member.getId());
				byte[] name = serializer.serialize(member.getNickname());
				return connection.setNX(key, name);
			}
			
		});		
		return result;
	}
	
	public boolean add(final List<Member> list) {
		boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
			@Override
			public Boolean doInRedis(RedisConnection connection)
					throws DataAccessException {
				RedisSerializer<String> serializer = getRedisSerializer();
				for(Member member : list) {
					byte[] key = serializer.serialize(member.getId());
					byte[] name = serializer.serialize(member.getNickname());
					connection.setNX(key, name);
				}
				return true;
			}
			
		},false,true);
		
		return result;
	}
	
	public boolean update(final Member member) {
		String key = member.getId();
		if(get(key) == null) {
			throw new NullPointerException("数据行不存在, key = " + key);
		}
		boolean result = redisTemplate.execute(new RedisCallback<Boolean>() {
			@Override
			public Boolean doInRedis(RedisConnection connection)
					throws DataAccessException {
				RedisSerializer<String> serializer = getRedisSerializer();
				byte[] key = serializer.serialize(member.getId());
				byte[] name = serializer.serialize(member.getNickname());
				connection.set(key, name);
				return true;
			}
		});
		return result;
	}
	
	public Member get(final String keyId) {
		Member result = redisTemplate.execute(new RedisCallback<Member>() {
			@Override
			public Member doInRedis(RedisConnection connection)
					throws DataAccessException {
				RedisSerializer<String> redisSerializer = getRedisSerializer();
				byte[] key = redisSerializer.serialize(keyId);
				byte[] value = connection.get(key);
				if(value == null) {
					return null;
				}
				String nickname = redisSerializer.deserialize(value);
				return new Member(keyId,nickname);
			}
			
		});
		return result;
	}
	
	public void delete(String key) {
		List<String> list = new ArrayList<String>();
		list.add(key);
		delete(list);
	}
	
	public void delete(List<String> keys) {
		redisTemplate.delete(keys);
	}
}
代码结束

开始测试

先add一个，然后在query

<a href="<%=basePath%>member/add">增加成员</a>
<a href="<%=basePath%>member/1/query">查询成员</a>
先增加一个用户




在查询这个数据




注意点

运行程序时需要启动redis.cmd

还需要注意springmvc引入的版本和jedis的版本兼容性，我在这里当时卡了好久，最后发现是版本不兼容，不兼容导致redisTemplate取不到


alvinIn
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