springMVC整合jedis+redis，以註解形式使用

時間 2019-11-12

標籤 springmvc 整合 jedis+redis jedis redis 註解形式使用欄目 Spring 简体版

原文原文鏈接

前兩天寫過 springMVC+memcached 的整合，我從這個基礎上改造一下，把redis和springmvc整合到一塊兒。javascript

和memcached同樣，redis也有java專用的客戶端，官網推薦使用的是：jedis。css

看了一部分資料，你們推薦使用 spring-data-redis （spring在jedis的基礎上又包裝了一層），可是實際中感受寫起來有點麻煩，不如原生態的jedis好用。html

因此我利用spring的構造注入作了一個springmvc整合jedis的例子。java

先了解下redis吧，這些資料袋都是從網上看到的：jquery

Redis使用c語言編寫，面向「鍵/值」對類型數據的分佈式NoSql數據庫系統。
目前提供五中數據類型
    string(字符串)
    list(鏈表)
    Hash(哈希)
    set(集合)
    zset(sorted set 有序集合),有2中編碼類型:ziplist,skiplist,當zset中數據較多時,將會被重構爲skiplist。    
默認端口6379

redis-server.exe：服務端
redis-check-dump.exe：本地數據庫檢查
redis-check-aof.exe：更新日誌檢查
redis-benchmark.exe：性能測試，用以模擬同時由N個客戶端發送M個 SETs/GETs 查詢.
redis-cli.exe：這個是客戶端，服務端開啓後，客戶端就能夠輸入各類命令測試了web

先寫一個Test類，測一下redis的基本數據類型和jedis的一些經常使用方法。如下的測試方法也都是從網上看到的，只不過爲了驗證是否準確以及jar包版本的問題，我本身親自敲了一遍。redis

注意jedis是redis的一個客戶端，是個jar包，不要搞混了……spring

public class Test {

    public static void main(String[] args) {
//        Jedis js = new Jedis("127.0.0.1", 6379);
        
//        js.set("key001", "redis001");
//        String val = js.get("key001");
//        System.out.println(val);
//        js.del("key001");
        
/**************************測試Redis的數據類型**************************/
        
        /**
         * list
         */
//        js.rpush("list1", "aaaaaaaaaaaaaaaaaaaaaa");
//        js.rpush("list1", "bbbbbbbbbbbbbbbbbbbbbb");
//        js.rpush("list1", "ccccccccccccccccccccc");
//        js.rpush("list1", "dddddddddddddd");
//        List<String> vals = js.lrange("list1", 0, -1);
//        for (int i = 0; i < vals.size(); i++) {
//            System.out.println(vals.get(i));
//        }

        
        /**
         * set 無須惟一
         */
//        js.sadd("s1", "順序3");
//        js.sadd("s1", "a");
//        js.sadd("s1", "b");
//        js.sadd("s1", "1");
//        js.sadd("s1", "蛤蛤蛤");
//        js.sadd("s1", "2");
//        js.sadd("s1", "so waht？");
//        js.sadd("s1", "%^");
//        js.sadd("s1", "順序1");
//        js.sadd("s1", "亂碼嗎？");
//        js.sadd("s1", "順序2");
//        Set<String> s = js.smembers("s1");
//        for (String string : s) {
//            System.out.println(s);
//        }
//        js.srem("s1", "蛤蛤蛤");
        
        
        /**
         * zset(sorted set 有序集合) 
         * 有2中編碼類型:ziplist,skiplist,當zset中數據較多時,將會被重構爲skiplist
         */    
//        js.zadd("zs", 92, "張三1");
//        js.zadd("zs", 93, "張三7");
//        js.zadd("zs", 94, "張三5");
//        js.zadd("zs", 87, "張三9");
//        js.zadd("zs", 66, "張三");
//        js.zadd("zs", 19, "張三0");
//        Set<String> sets = js.zrange("zs", 0, -1);
//        for (String string : sets) {
//            System.out.println(sets);
//        }
        
        
        /**
         * Hash
         */
//        Map m = new HashMap();
//        m.put("1", "t");
//        m.put("2", "ttt");
//        m.put("username", "老王");
//        m.put("password", "123456");
//        m.put("age", "79");
//        m.put("sex", "man");
//        js.hmset("m", m);    
//        List<String> v = js.hmget("m", new String[]{"username","age"});
//        List<String> v1 = js.hmget("m", "sex");
//        System.out.println(v);
//        System.out.println(v1);
//        js.hdel("m", "username");//刪除map中的某一個鍵的鍵值對
        
        
/**************************事務控制**************************/
        
        /**
         * 事務方式(Transactions)
         * 他主要目的是保障，一個client發起的事務中的命令能夠連續的執行，而中間不會插入其餘client的命令。
         * 
         * 咱們調用jedis.watch(…)方法來監控key，若是調用後key值發生變化，則整個事務會執行失敗。
         * 另外，事務中某個操做失敗，並不會回滾其餘操做。這一點須要注意。
         * 還有，咱們能夠使用discard()方法來取消事務。
         */
//        Jedis js1 = new Jedis("127.0.0.1", 6379);
//        long s = System.currentTimeMillis();
//        Transaction tx = js1.multi();
//        for (int i = 0; i < 99999; i++) {
//            tx.set("keyttt"+i, "valttt"+i);
//        }
//        List<Object> res= tx.exec();
//        long e = System.currentTimeMillis();
//        System.out.println((e-s)/1000.0+"秒");
        //System.out.println(res);
//        js1.disconnect();
        

/**************************管道**************************/
        /**
         * 管道(Pipelining)
         * 有時，咱們須要採用異步方式，一次發送多個指令，不一樣步等待其返回結果。
         * 這樣能夠取得很是好的執行效率。這就是管道
         */
//        Jedis js2 = new Jedis("127.0.0.1", 6379);
//        long s = System.currentTimeMillis();
//        Pipeline pe = js2.pipelined();
//        for (int i = 0; i < 9999; i++) {
//            pe.set("keya"+i, "valuea"+i);
//        }
//        List<Object> l = pe.syncAndReturnAll();
//        long e = System.currentTimeMillis();
//        System.out.println((e-s)/1000.0+"秒");
//        js2.disconnect();
        
        
/**************************管道中調用事務**************************/        
        /**
         * 管道中調用事務
         * 在用法上看，管道中包含了事務
         */
        
//        Jedis js3 = new Jedis("127.0.0.1", 6379);
//        long s = System.currentTimeMillis();
//        Pipeline pe = js3.pipelined();
//        pe.multi();
//        for (int i = 0; i < 9999; i++) {
//            pe.set("keybb"+i, "valuebb"+i);
//        }
//        pe.exec();
//        List<Object> l = pe.syncAndReturnAll();
//        long e = System.currentTimeMillis();
//        System.out.println((e-s)/1000.0+"秒");
//        js3.disconnect();        
        
        
/**************************分佈式直連同步調用**************************/            
        /**
         * 分佈式直連同步調用
         * 線程不安全的，不建議在線程池中使用直連
         */
//        List<JedisShardInfo> shards = Arrays.asList(
//                new JedisShardInfo("localhost",6379),
//                new JedisShardInfo("localhost",6380));
//        ShardedJedis sharding = new ShardedJedis(shards);
//        long start = System.currentTimeMillis();
//        for (int i = 0; i < 100000; i++) {
//            String result = sharding.set("sn" + i, "n" + i);
//        }
//        long end = System.currentTimeMillis();
//        System.out.println("Simple@Sharing SET: " + ((end - start)/1000.0) + " seconds");
//        sharding.disconnect();        
        
/**************************分佈式直連同步調用**************************/            
        /**
         * 分佈式直連異步調用
         * 線程不安全的，不建議在線程池中使用直連
         */        
//         List<JedisShardInfo> shards = Arrays.asList(
//                    new JedisShardInfo("localhost",6379),
//                    new JedisShardInfo("localhost",6380));
//            ShardedJedis sharding = new ShardedJedis(shards);
//            ShardedJedisPipeline pipeline = sharding.pipelined();
//            long start = System.currentTimeMillis();
//            for (int i = 0; i < 100000; i++) {
//                pipeline.set("sp" + i, "p" + i);
//            }
//            List<Object> results = pipeline.syncAndReturnAll();
//            long end = System.currentTimeMillis();
//            System.out.println("Pipelined@Sharing SET: " + ((end - start)/1000.0) + " seconds");
//            sharding.disconnect();        
        

            
/**************************分佈式鏈接池同步調用**************************/        
            /**
             * 同步方式
             */
//            List<JedisShardInfo> shards = Arrays.asList(
//                    new JedisShardInfo("localhost",6379),
//                    new JedisShardInfo("localhost",6380));
//
//            ShardedJedisPool pool = new ShardedJedisPool(new JedisPoolConfig(), shards);
//
//            ShardedJedis one = pool.getResource();
//
//            long start = System.currentTimeMillis();
//            for (int i = 0; i < 100000; i++) {
//                String result = one.set("spn" + i, "n" + i);
//            }
//            long end = System.currentTimeMillis();
//            pool.returnResource(one);
//            System.out.println("Simple@Pool SET: " + ((end - start)/1000.0) + " seconds");
//
//            pool.destroy();        
//        
        
/**************************分佈式鏈接池異步調用**************************/        
        /**
         * 異步方式
         */        
//         List<JedisShardInfo> shards = Arrays.asList(
//                    new JedisShardInfo("localhost",6379),
//                    new JedisShardInfo("localhost",6380));
//
//        ShardedJedisPool pool = new ShardedJedisPool(new JedisPoolConfig(), shards);
//
//        ShardedJedis one = pool.getResource();
//
//        ShardedJedisPipeline pipeline = one.pipelined();
//
//        long start = System.currentTimeMillis();
//        for (int i = 0; i < 100000; i++) {
//            pipeline.set("sppn" + i, "n" + i);
//        }
//        List<Object> results = pipeline.syncAndReturnAll();
//        long end = System.currentTimeMillis();
//        pool.returnResource(one);
//        System.out.println("Pipelined@Pool SET: " + ((end - start)/1000.0) + " seconds");
//        pool.destroy();


/**************************其餘**************************/    

        /**
         * 清空全部
         */
//        js.flushAll();
        
        /**
         * 銷燬連接
         */
//        js.disconnect();

}

View Code

開始貼代碼了，springMVC整合jedis數據庫

web.xmlexpress

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>SpringMVC-Redis</display-name>

  <!-- 引入 spring -->
  <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener> 
  <context-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath*:/applicationContext*.xml</param-value>
  </context-param>
  
  <!-- 引入 springMVC -->
  <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-servlet-config.xml</param-value>
      </init-param>
  </servlet>  
  <servlet-mapping>
      <servlet-name>springMVC</servlet-name>
      <url-pattern>/</url-pattern>
  </servlet-mapping>
  
  <!-- 編碼 UTF-8 -->
  <filter>
      <filter-name>SpringMVC-Redis-Encoding</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>SpringMVC-Redis-Encoding</filter-name>
      <url-pattern>/*</url-pattern>
  </filter-mapping>
  

</web-app>

View Code

index.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script type="text/javascript" src="${pageContext.request.contextPath }/js/jquery/jquery-1.8.0.min.js"></script>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>index 2</title>
</head>
<body>
    <div><font color="red" size="10px">${returnMsg}</font></div>
    <form action="${pageContext.request.contextPath }/TestRequest/test" method="post" name="loginForm" id="loginForm">
        <div>
            用戶名：<input class="username" type="text" id="username" name="username"  value=''/>
        </div>
        <div >
            密碼：<input class="password" type="password" id="password" name="password" value=""/>
        </div>
        <div><input type="button" value="submit" onclick="login()" /></div>
    </form> 
<script type="text/javascript">
    
    function login(){
        var username = $("#username").val();
        var password = $("#password").val();
        $("#loginForm").submit();
    }

    document.onkeydown=function(event){ 
        e = event ? event :(window.event ? window.event : null); 
        if(e.keyCode==13){ 
            login();
        } 
    } 
    
</script>
</body>
</html>

View Code

spring-servlet-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"  
    xmlns:mvc="http://www.springframework.org/schema/mvc"  
    xmlns:context="http://www.springframework.org/schema/context"  
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans  
    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  
    http://www.springframework.org/schema/context   
    http://www.springframework.org/schema/context/spring-context-3.1.xsd  
    http://www.springframework.org/schema/mvc  
    http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">  
    
    <!-- 使用@Controllers前配置 -->
    <mvc:annotation-driven />            
    
    <!-- 容器加載時 自動掃描全部註解 -->
    <context:component-scan base-package="com.test" use-default-filters="false">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
        <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:component-scan>     
     
     <!-- 配置靜態資源  -->    
    <mvc:resources mapping="/js/**" location="/js/" />  
    <mvc:resources mapping="/image/**" location="/image/" /> 
    <mvc:resources mapping="/css/**" location="/css/" />     
    
      <!-- 使用jsp做爲視圖 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass">
            <value>org.springframework.web.servlet.view.JstlView</value>
        </property>
        <!-- 目標路徑返回到pages下 使用jsp做爲視圖 -->
        <property name="prefix" value="/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>    
    
    <!-- 異常處理 -->
    <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">    
        <property name="exceptionMappings">    
            <props>    
                <prop key="org.apache.shiro.authz.UnauthorizedException">error/403</prop>    
            </props>    
        </property>    
    </bean>    

</beans>

View Code

先把這些貼上來是由於這些文件內容都和上篇博文」springMVC+memcached 「的如出一轍

applicationContext.xml

利用spring的構造注入，把集羣參數傳入RedisInitBean中，而且在項目啓動的時候加載RedisInitBean的有參構造方法

<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans   
    http://www.springframework.org/schema/beans/spring-beans-3.1.xsd  
    http://www.springframework.org/schema/context   
    http://www.springframework.org/schema/context/spring-context-3.1.xsd  
    http://www.springframework.org/schema/aop   
    http://www.springframework.org/schema/aop/spring-aop-3.1.xsd  
    http://www.springframework.org/schema/tx   
    http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">
    
    <bean id="RedisInitBean" class="com.test.test.RedisInitBean" >
        <!-- IP:Port -->
        <constructor-arg index="0" type="List">
            <list>
                <value>127.0.0.1:6379</value>
                <value>192.168.3.27:6380</value>
            </list>
        </constructor-arg>    
        <!-- maxWaitMillis -->
        <constructor-arg index="1" type="long">
            <value>1000</value>
        </constructor-arg>    
        <!-- MaxIdle -->    
        <constructor-arg index="2" type="int">
            <value>200</value>
        </constructor-arg>    
        <!-- testOnBorrow -->
        <constructor-arg index="3" type="Boolean">
            <value>true</value>
        </constructor-arg>        
    </bean>
    
</beans>

View Code

RedisInitBean.java

這裏面要說一下，使用的是分佈式鏈接池異步調用！

package com.test.test;

import java.util.Arrays;
import java.util.List;

import redis.clients.jedis.JedisPoolConfig;
import redis.clients.jedis.JedisShardInfo;
import redis.clients.jedis.ShardedJedis;
import redis.clients.jedis.ShardedJedisPool;

public class RedisInitBean {
    
    private List Host;
    private long maxWaitMillis;
    private int MaxIdle;
    private Boolean testOnBorrow;
    private static List<JedisShardInfo> shards ;
    private static ShardedJedisPool pool;
    private static ShardedJedis jedis;
    
    public RedisInitBean(List host, long maxWaitMillis, int maxIdle,
            Boolean testOnBorrow) {
        super();
        Host = host;
        this.maxWaitMillis = maxWaitMillis;
        MaxIdle = maxIdle;
        this.testOnBorrow = testOnBorrow;
        if(host.size()!=0){
            for (int i = 0; i < host.size(); i++) {        
                String h[] = ((String) host.get(i)).split(":");     
                shards = Arrays.asList(new JedisShardInfo(h[0].trim(),Integer.parseInt(h[1].trim())));
                System.out.println(shards);
            }
        }else{
            System.out.println("請檢查Redis配置，host項爲必填項！格式[IP:PORT]");
        }

        pool = new ShardedJedisPool(new JedisPoolConfig(), shards);
        jedis = pool.getResource();    
    }
    
    public synchronized ShardedJedis getSingletonInstance(){
        return jedis;
    }
    
    public synchronized static void returnResource(){
        pool.returnResource(jedis);
    }
    
    public synchronized static void destroy(){
        pool.destroy();
    }
    
}

View Code

TestRequest.java

剛纔咱們寫的index.jsp中，提交了表單後瀏覽器會發起請求，spring攔截請求後會找到註解匹配的類中的方法，TestRequest就是了。

package com.test.web;

import java.util.List;

import javax.servlet.http.HttpSession;

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

import redis.clients.jedis.ShardedJedis;
import redis.clients.jedis.ShardedJedisPipeline;

import com.test.test.RedisInitBean;

@Controller
@RequestMapping("/TestRequest")
public class TestRequest {

    @Autowired
    private RedisInitBean rib;
    
    @RequestMapping("/test")
    public ModelAndView test(@RequestParam(value = "username") final String userid,
            @RequestParam(value = "password") final String passwd, HttpSession session){
        
        ModelAndView m = new ModelAndView();
        m.setViewName("../index");    
        ShardedJedis jedis = rib.getSingletonInstance();
        ShardedJedisPipeline pipeline = jedis.pipelined();
        long start = System.currentTimeMillis();
        for (int i = 0; i < 99999; i++) {
            pipeline.set("zhenbn" + i, "n" + i);      
        }
        List<Object> results = pipeline.syncAndReturnAll();
        long end = System.currentTimeMillis();
        rib.returnResource();
        rib.destroy();
        System.out.println("分佈式鏈接池異步調用耗時: " + ((end - start)/1000.0) + " 秒");
        try {
            Thread.sleep(5000);//睡5秒，而後打印jedis返回的結果
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("返回結果："+results);
        m.addObject("returnMsg","麼麼噠！");    
        return m;
    }

}