Redis（六）-- SpringMVC整合Redis-白红宇

Redis（六）-- SpringMVC整合Redis

阅读量：4347 次

发布时间：2019-06-07

本文共 11497 字，大约阅读时间需要 38 分钟。

一、pom.xml

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

View Code

二、applicaltionContext.xml

三、redis.properties

1 redis.host=192.168.242.1302 redis.port=63793 redis.pass=xbq1234 redis.timeout=-15   6 redis.maxIdle=1007 redis.minIdle=88 redis.maxWait=-19 redis.testOnBorrow=true

四、spring-mvc.xml

五、web.xml


     
       
      
       SpringDemoTest
        
          
       
        index.jsp
         
            
          
              
       
        contextConfigLocation
               
       
                    classpath*:applicationContext.xml,        
           
              
          
              
       
        encodingFilter
               
       
        org.springframework.web.filter.CharacterEncodingFilter
               
       
        true
               
                   
        
         encoding
                    
        
         UTF-8
                
           
          
              
       
        encodingFilter
               
       
        /*
           
              
          
              
       
        org.springframework.web.context.ContextLoaderListener
           
              
          
              
       
        org.springframework.web.util.IntrospectorCleanupListener
           
              
          
              
       
        springMVC
               
       
        org.springframework.web.servlet.DispatcherServlet
               
                   
        
         contextConfigLocation
                    
        
         classpath*:spring-mvc.xml
                
               
       
        1
               
       
        true
           
          
              
       
        springMVC
               
       
        *.do

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 xbq10  */11 @Component("redisCache")12 public class RedisCacheUtil {13 14     @Resource15     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 key33      * @param field34      * @return35      */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 key45      * @param key46      * @param field47      * @return48      */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 key59      * @return60      */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 key71      * @param field72      */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     @Before19     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     @Test34     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     @Test41     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     @Test48     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 xbq14  */15 @Controller16 @RequestMapping("/student/")17 public class StudentController {18 19     @Resource20     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 response37      * @param o38      * @throws Exception39      */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 }