Redis（六）-- SpringMVC整合Redis

一、pom.xml

  1 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  2   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  3   <modelVersion>4.0.0</modelVersion>
  4   <groupId>com.xbq.demo</groupId>
  5   <artifactId>SpringRedisDemo</artifactId>
  6   <packaging>war</packaging>
  7   <version>0.0.1-SNAPSHOT</version>
  8   <name>SpringRedisDemo Maven Webapp</name>
  9   <url>http://maven.apache.org</url>
 10   
 11   <!-- Spring版本号 -->
 12   <properties>
 13      <org.springframework.version>4.2.3.RELEASE</org.springframework.version>
 14   </properties>
 15   
 16  <dependencies>
 17      <dependency>
 18         <groupId>javax.servlet</groupId>
 19         <artifactId>servlet-api</artifactId>
 20         <version>2.5</version>
 21     </dependency>
 22     <dependency>
 23       <groupId>junit</groupId>
 24       <artifactId>junit</artifactId>
 25       <version>4.10</version>
 26       <scope>test</scope>
 27     </dependency>
 28     <dependency>
 29         <groupId>commons-logging</groupId>
 30         <artifactId>commons-logging</artifactId>
 31         <version>1.1.1</version>
 32     </dependency>
 33     <dependency>
 34         <groupId>log4j</groupId>
 35         <artifactId>log4j</artifactId>
 36         <version>1.2.16</version>
 37     </dependency>
 38     <dependency>
 39         <groupId>org.slf4j</groupId>
 40         <artifactId>slf4j-api</artifactId>
 41         <version>1.7.7</version>
 42     </dependency>
 43     <dependency>
 44         <groupId>org.slf4j</groupId>
 45         <artifactId>slf4j-log4j12</artifactId>
 46         <version>1.7.7</version>
 47     </dependency>
 48     <dependency>
 49         <groupId>redis.clients</groupId>
 50         <artifactId>jedis</artifactId>
 51         <version>2.9.0</version>
 52     </dependency>
 53     <dependency>
 54         <groupId>org.apache.commons</groupId>
 55         <artifactId>commons-pool2</artifactId>
 56         <version>2.4.2</version>
 57     </dependency>
 58     <dependency>
 59         <groupId>commons-fileupload</groupId>
 60         <artifactId>commons-fileupload</artifactId>
 61         <version>1.3.2</version>
 62     </dependency>
 63     <dependency>  
 64         <groupId>org.springframework.data</groupId>  
 65         <artifactId>spring-data-redis</artifactId>  
 66         <version>1.8.1.RELEASE</version>  
 67     </dependency>
 68     <dependency>
 69         <groupId>org.springframework</groupId>
 70         <artifactId>spring-context</artifactId>
 71         <version>${org.springframework.version}</version>
 72     </dependency>
 73     <dependency>
 74         <groupId>org.springframework</groupId>
 75         <artifactId>spring-core</artifactId>
 76         <version>${org.springframework.version}</version>
 77     </dependency>
 78     <dependency>
 79         <groupId>org.springframework</groupId>
 80         <artifactId>spring-beans</artifactId>
 81         <version>${org.springframework.version}</version>
 82     </dependency>
 83     <dependency>
 84         <groupId>org.springframework</groupId>
 85         <artifactId>spring-webmvc</artifactId>
 86         <version>${org.springframework.version}</version>
 87     </dependency>
 88     <dependency>
 89         <groupId>org.springframework</groupId>
 90         <artifactId>spring-orm</artifactId>
 91         <version>${org.springframework.version}</version>
 92     </dependency>
 93     <dependency>
 94         <groupId>org.springframework</groupId>
 95         <artifactId>spring-test</artifactId>
 96         <version>${org.springframework.version}</version>
 97     </dependency>
 98     <dependency>
 99         <groupId>org.springframework</groupId>
100         <artifactId>spring-aspects</artifactId>
101         <version>${org.springframework.version}</version>
102     </dependency>
103     <dependency>
104         <groupId>org.springframework</groupId>
105         <artifactId>spring-tx</artifactId>
106         <version>${org.springframework.version}</version>
107     </dependency>
108   </dependencies>
109   
110   <build>
111     <finalName>SpringRedisDemo</finalName>
112   </build>
113 </project>

二、applicaltionContext.xml

 1 <?xml version="1.0" encoding="UTF-8"?>    
 2 <beans xmlns="http://www.springframework.org/schema/beans"    
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   
 4     xmlns:p="http://www.springframework.org/schema/p"  
 5     xmlns:aop="http://www.springframework.org/schema/aop"   
 6     xmlns:context="http://www.springframework.org/schema/context"  
 7     xmlns:jee="http://www.springframework.org/schema/jee"  
 8     xmlns:tx="http://www.springframework.org/schema/tx" 
 9     xmlns:cache="http://www.springframework.org/schema/cache" 
10     xsi:schemaLocation="    
11         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd  
12         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd  
13         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd  
14         http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd  
15         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd ">    
16     <!-- 自动扫描 -->
17     <context:component-scan base-package="com.xbq.demo.util"/>
18     <!-- 加载文件 -->
19     <context:property-placeholder location="classpath:redis.properties" />
20 
21     <!-- jedis 配置 -->
22     <bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig">
23         <property name="maxIdle" value="${redis.maxIdle}" />
24         <property name="minIdle" value="${redis.minIdle}" />
25         <property name="maxWaitMillis" value="${redis.maxWait}" />
26         <property name="testOnBorrow" value="${redis.testOnBorrow}" />
27     </bean>
28     <!-- redis服务器中心 -->
29     <bean id="connectionFactory"
30         class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
31         <property name="poolConfig" ref="poolConfig" />
32         <property name="port" value="${redis.port}" />
33         <property name="hostName" value="${redis.host}" />
34         <property name="password" value="${redis.pass}" />
35         <property name="timeout" value="${redis.timeout}" />
36     </bean>
37     <!-- redis操作模板，面向对象的模板 -->
38     <bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
39         <property name="connectionFactory" ref="connectionFactory" />
40         <!-- 如果不配置Serializer，那么存储的时候只能使用String，如果用对象类型存储，那么会提示错误 -->
41         <property name="keySerializer">
42             <bean class="org.springframework.data.redis.serializer.StringRedisSerializer" />
43         </property>
44         <property name="valueSerializer">
45             <bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer" />
46         </property>
47     </bean>
48 </beans>

三、redis.properties

1 redis.host=192.168.242.130
2 redis.port=6379
3 redis.pass=xbq123
4 redis.timeout=-1
5   
6 redis.maxIdle=100
7 redis.minIdle=8
8 redis.maxWait=-1
9 redis.testOnBorrow=true

四、spring-mvc.xml

 1 <?xml version="1.0" encoding="UTF-8"?>    
 2 <beans xmlns="http://www.springframework.org/schema/beans"    
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"   
 4     xmlns:p="http://www.springframework.org/schema/p"  
 5     xmlns:aop="http://www.springframework.org/schema/aop"   
 6     xmlns:context="http://www.springframework.org/schema/context"  
 7     xmlns:jee="http://www.springframework.org/schema/jee"  
 8     xmlns:tx="http://www.springframework.org/schema/tx"  
 9     xmlns:mvc="http://www.springframework.org/schema/mvc"
10     xsi:schemaLocation="    
11         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd  
12         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd  
13         http://www.springframework.org/schema/mvc   http://www.springframework.org/schema/mvc/spring-mvc.xsd
14         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd  
15         http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd  
16         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">    
17     
18     <!-- 视图解析器 -->
19     <bean id="viewResolver"
20         class="org.springframework.web.servlet.view.InternalResourceViewResolver">
21         <property name="prefix" value="/" />
22         <property name="suffix" value=".jsp"></property>
23     </bean>
24     
25     <bean id="multipartResolver"
26         class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
27         <property name="defaultEncoding" value="UTF-8"/>  
28         <property name="maxUploadSize" value="10000000"/>
29     </bean>
30 
31     <!-- 使用注解的包，包括子集 -->
32     <context:component-scan base-package="com.xbq.demo.controller"/>
33 </beans>  

五、web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 　　xmlns="http://java.sun.com/xml/ns/javaee" 　　xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 　　xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>SpringDemoTest</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
      <!-- Spring配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath*:applicationContext.xml,
        </param-value>
    </context-param>
    
    <!-- 编码过滤器 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <async-supported>true</async-supported>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    <!--spring监听器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    
    <!-- 防止spring内存溢出监听器-->
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    </listener>
    
    <!-- 添加对springmvc的支持 -->
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
</web-app>

六、封装一个操作hash基本数据类型的工具类

 1 package com.xbq.demo.util;
 2 
 3 import javax.annotation.Resource;
 4 import org.springframework.data.redis.core.StringRedisTemplate;
 5 import org.springframework.stereotype.Component;
 6 
 7 /**
 8  * 操作 hash 的基本操作
 9  * @author xbq
10  */
11 @Component("redisCache")
12 public class RedisCacheUtil {
13 
14     @Resource
15     private StringRedisTemplate  redisTemplate;
16     
17     /**
18      * 向Hash中添加值
19      * @param key      可以对应数据库中的表名
20       * @param field    可以对应数据库表中的唯一索引
21      * @param value    存入redis中的值
22      */
23     public void hset(String key, String field, String value) {
24         if(key == null || "".equals(key)){
25             return ;
26         }
27         redisTemplate.opsForHash().put(key, field, value);
28     }
29     
30     /**
31      * 从redis中取出值
32      * @param key
33      * @param field
34      * @return
35      */
36     public String hget(String key, String field){
37         if(key == null || "".equals(key)){
38             return null;
39         }
40         return (String) redisTemplate.opsForHash().get(key, field);
41     }
42     
43     /**
44      * 判断 是否存在 key 以及 hash key
45      * @param key
46      * @param field
47      * @return
48      */
49     public boolean hexists(String key, String field){
50         if(key == null || "".equals(key)){
51             return false;
52         }
53         return redisTemplate.opsForHash().hasKey(key, field);
54     }
55     
56     /**
57      * 查询 key中对应多少条数据
58      * @param key
59      * @return
60      */
61     public long hsize(String key) {
62         if(key == null || "".equals(key)){
63             return 0L;
64         }
65         return redisTemplate.opsForHash().size(key);
66     }
67     
68     /**
69      * 删除
70      * @param key
71      * @param field
72      */
73     public void hdel(String key, String field) {
74         if(key == null || "".equals(key)){
75             return;
76         }
77         redisTemplate.opsForHash().delete(key, field);
78     }
79 }

七、测试类

 1 package com.xbq.demo;
 2 
 3 import org.junit.Before;
 4 import org.junit.Test;
 5 import org.springframework.context.support.ClassPathXmlApplicationContext;
 6 import com.xbq.demo.util.RedisCacheUtil;
 7 
 8 /**
 9  * 测试
10  */
11 public class RedisTest {
12 
13     private RedisCacheUtil redisCache;
14     private static String key;
15     private static String field;
16     private static String value;
17     
18     @Before
19     public void setUp() throws Exception {
20         ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
21         context.start();
22         redisCache = (RedisCacheUtil) context.getBean("redisCache");
23     }
24 
25     // 初始化 数据
26     static {
27         key = "tb_student";
28         field = "stu_name";
29         value = "一系列的关于student的信息！";
30     }
31     
32     // 测试增加数据
33     @Test
34     public void testHset() {
35         redisCache.hset(key, field, value);
36         System.out.println("数据保存成功！");
37     }
38 
39     // 测试查询数据
40     @Test
41     public void testHget(){
42         String re = redisCache.hget(key, field);
43         System.out.println("得到的数据：" + re);
44     }
45     
46     // 测试数据的数量
47     @Test
48     public void testHsize(){
49         long size = redisCache.hsize(key);
50         System.out.println("数量为：" + size);
51     }
52 }

八、控制层 StudentController

 1 package com.xbq.demo.controller;
 2 
 3 import java.io.PrintWriter;
 4 import javax.annotation.Resource;
 5 import javax.servlet.http.HttpServletRequest;
 6 import javax.servlet.http.HttpServletResponse;
 7 import org.springframework.stereotype.Controller;
 8 import org.springframework.web.bind.annotation.RequestMapping;
 9 import com.xbq.demo.util.RedisCacheUtil;
10 
11 /**
12  * 控制层
13  * @author xbq
14  */
15 @Controller
16 @RequestMapping("/student/")
17 public class StudentController {
18 
19     @Resource
20     private RedisCacheUtil redisCache;
21     
22     // 查询数据
23     @RequestMapping("list")
24     public String list(HttpServletResponse response, HttpServletRequest request){
25         String re = redisCache.hget("tb_student", "stu_id");
26         try {
27             this.write(response, re);
28         } catch (Exception e) {
29             e.printStackTrace();
30         }
31         return null;
32     }
33     
34     /**
35      * 回写到页面上
36      * @param response
37      * @param o
38      * @throws Exception
39      */
40     private void write(HttpServletResponse response, Object o) throws Exception{
41         response.setContentType("text/html;charset=utf-8");
42         PrintWriter out=response.getWriter();
43         out.println(o.toString());
44         out.flush();
45         out.close();
46     }
47 }

九、jsp页面

<body>
    Hello World!
    <a href="${pageContext.request.contextPath}/student/list.do">显示数据</a>
</body>

十、源码下载

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来源：https://www.cnblogs.com/xbq8080/p/6739152.html