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<p>今天起的新项目使用spring session redis。<br>抛出了几个问题，问题异常不贴了<br><a id="more"></a></p>
<h1 id="初始化redis-工厂实例失败"><a href="#初始化redis-工厂实例失败" class="headerlink" title="初始化redis 工厂实例失败"></a>初始化redis 工厂实例失败</h1><p>异常如下：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">Consider revisiting the conditions above or defining a bean of type 'org.springframework.data.redis.connection.jedis.JedisConnectionFactory' in your configuration.</span><br></pre></td></tr></table></figure>
<p>自己使用了 </p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><dependency></span><br><span class="line"> <groupId>org.springframework.session</groupId></span><br><span class="line"> <artifactId>spring-session-data-redis</artifactId></span><br><span class="line"> <version>2.1.2.RELEASE</version></span><br><span class="line"></dependency></span><br></pre></td></tr></table></figure>
<p>只添加这一个是不行的，因为我们如果打开pom文件会发现，虽然引用了 spring-data-redis ，但是其中的两个driver </p>
<p><img src="https://i.loli.net/2019/06/10/5cfe14be5538468970.jpg" alt="500f7dd1d623e0017c4044689ebe9925"></p>
<p>都是option的，可选择的，所以在主要的项目中得指定一个redis客户端。<br>从2.0开始，spring 默认使用的 lettuce 客户端，我们可以添加上他就ok了。</p>
<p><img src="https://i.loli.net/2019/06/10/5cfe14bea8d8e41984.jpg" alt="0ab3127c8689cbf40542219fd12643a8"></p>
<p>如图所示，commons包也是option的，所以也得添加。<br>如果想使用jedis客户端，那么就直接引用jedis客户端就行了，去掉截图中的两个引用。</p>
<p>ps：<br>顺便再提及一点，如果同时引用了lettuce，jedis两个jar包的话，那么就会产生jedis初始化失败的问题，这是因为，源码中 LettuceConnectionConfiguration 初始化比redis的工厂类早。</p>
<h1 id="如果使用lettuce碰到连接超时的问题，RedisCommandTimeoutException"><a href="#如果使用lettuce碰到连接超时的问题，RedisCommandTimeoutException" class="headerlink" title="如果使用lettuce碰到连接超时的问题，RedisCommandTimeoutException"></a>如果使用lettuce碰到连接超时的问题，RedisCommandTimeoutException</h1><p>那么将截图中的timeout配置项去掉就可以了。</p>
<p><img src="https://i.loli.net/2019/06/10/5cfe14bf3084a95083.jpg" alt="28145be2d53fc6d26afe3d705e163369"></p>
<h1 id="说明一下"><a href="#说明一下" class="headerlink" title="说明一下"></a>说明一下</h1><p>最近比较忙，写了不少笔记，总结了很多东西，不少干活。近一年会主键开发。<br>起了个新项目，今年开源，用到了不少东西，对新手比较友好。</p>
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