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rss.xml
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<?xml version="1.0"?>
<rss version="2.0">
<channel>
<title></title>
<subtitle>不在能知，乃在能行</subtitle>
<icon>http://example.com/images/favicon.ico</icon>
<link>http://example.com</link>
<author>
<name>Dabing-He</name>
</author>
<description>一只末影酱的小屋</description>
<language>zh-CN</language>
<pubDate>Fri, 15 Mar 2024 21:05:35 +0800</pubDate>
<lastBuildDate>Fri, 15 Mar 2024 21:05:35 +0800</lastBuildDate>
<item>
<guid isPermalink="true">http://example.com/%E6%9C%AB%E5%BD%B1%E7%9A%84%E6%AD%A6%E5%99%A8%E5%BA%93/</guid>
<title>后端武器库</title>
<link>http://example.com/%E6%9C%AB%E5%BD%B1%E7%9A%84%E6%AD%A6%E5%99%A8%E5%BA%93/</link>
<category term="抓哇" scheme="http://example.com/categories/%E6%8A%93%E5%93%87/" />
<category term="工具" scheme="http://example.com/categories/%E6%8A%93%E5%93%87/%E5%B7%A5%E5%85%B7/" />
<category term="cv工程" scheme="http://example.com/categories/%E6%8A%93%E5%93%87/%E5%B7%A5%E5%85%B7/cv%E5%B7%A5%E7%A8%8B/" />
<category term="Java" scheme="http://example.com/tags/Java/" />
<category term="JavaWeb" scheme="http://example.com/tags/JavaWeb/" />
<pubDate>Fri, 15 Mar 2024 21:05:35 +0800</pubDate>
<description><![CDATA[ <p>额，what can I say, have funning!</p>
<p>&lt;h1&gt; 武器库 &lt;/h1&gt;</p>
<h2 id="处理器"><a class="anchor" href="#处理器">#</a> 处理器</h2>
<h4 id="1全局异常处理器"><a class="anchor" href="#1全局异常处理器">#</a> 1. 全局异常处理器</h4>
<p><img data-src="C:%5CUsers%5C%E6%9C%AB%E5%BD%B1%5CAppData%5CRoaming%5CTypora%5Ctypora-user-images%5Cimage-20240313232526145.png" alt="image-20240313232526145" /></p>
<pre><code class="language-java">@RestController
public class GlobalExceptionHandler&#123;
@ExceptionHandler(Exception.class)
public Result exceptionHandler(BaseException ex)&#123;
log.error(&quot;异常信息：&#123;&#125;&quot;, ex.getMessage());
return Result.error(ex.getMessage());
&#125;
&#125;
</code></pre>
<p><img data-src="C:%5CUsers%5C%E6%9C%AB%E5%BD%B1%5CAppData%5CRoaming%5CTypora%5Ctypora-user-images%5Cimage-20240313232545993.png" alt="image-20240313232545993" /></p>
<h3 id="2-登录拦截器"><a class="anchor" href="#2-登录拦截器">#</a> 2. 登录拦截器</h3>
<pre><code class="language-java">@Component
public class LoginInterceptor implements HandlerInterceptor &#123;
// @Autowired
// private StringRedisTemplate stringRedisTemplate;
@Autowired
private RedisTemplate redisTemplate;
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)&#123;
String token = request.getHeader(&quot;token&quot;);
try&#123;
//redis 获取相同token
// ValueOperations&lt;String,String&gt;operations=stringRedisTemplate.opsForValue();
// String redisToken = operations.get(token);
Object o = redisTemplate.opsForValue().get(token);
if(o==null)&#123;
throw new RuntimeException();
&#125;
// / if(redisToken== null)&#123;
// throw new RuntimeException();
// &#125;
Map&lt;String,Object&gt;claims= JwtUtil.parseToken(token);
ThreadLocalUtil.set(claims);
//放行
return true;
&#125;catch(Exception e)&#123;
response.setStatus(401);
return false;
&#125;
&#125;
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception &#123;
//清空ThreadLocal中的数据
ThreadLocalUtil.remove();
&#125;
&#125;
</code></pre>
<h2 id="工具类"><a class="anchor" href="#工具类">#</a> 工具类</h2>
<h4 id="threadlocal"><a class="anchor" href="#threadlocal">#</a> ThreadLocal</h4>
<p><img data-src="C:%5CUsers%5C%E6%9C%AB%E5%BD%B1%5CAppData%5CRoaming%5CTypora%5Ctypora-user-images%5Cimage-20240313232816691.png" alt="image-20240313232816691" /></p>
<pre><code class="language-java">public class BaseContext &#123;
public static ThreadLocal&lt;Long&gt; threadLocal = new ThreadLocal&lt;&gt;();
public static void setCurrentId(Long id) &#123;
threadLocal.set(id);
&#125;
public static Long getCurrentId() &#123;
return threadLocal.get();
&#125;
public static void removeCurrentId() &#123;
threadLocal.remove();
&#125;
&#125;
/////------------------------
/**
* ThreadLocal 工具类
*/
@SuppressWarnings(&quot;all&quot;)
public class ThreadLocalUtil &#123;
//提供ThreadLocal对象,
private static final ThreadLocal THREAD_LOCAL = new ThreadLocal();
//根据键获取值
public static &lt;T&gt; T get()&#123;
return (T) THREAD_LOCAL.get();
&#125;
//存储键值对
public static void set(Object value)&#123;
THREAD_LOCAL.set(value);
&#125;
//清除ThreadLocal 防止内存泄漏
public static void remove()&#123;
THREAD_LOCAL.remove();
&#125;
&#125;
</code></pre>
<h4 id="result统一返回处理"><a class="anchor" href="#result统一返回处理">#</a> Result (统一返回处理)</h4>
<pre><code class="language-java">/**
* 后端统一返回结果
* @param &lt;T&gt;
*/
@Data
public class Result&lt;T&gt; implements Serializable &#123;
private Integer code; //编码：1成功，0和其它数字为失败
private String msg; //错误信息
private T data; //数据
public static &lt;T&gt; Result&lt;T&gt; success() &#123;
Result&lt;T&gt; result = new Result&lt;T&gt;();
result.code = 1;
return result;
&#125;
public static &lt;T&gt; Result&lt;T&gt; success(T object) &#123;
Result&lt;T&gt; result = new Result&lt;T&gt;();
result.data = object;
result.code = 1;
return result;
&#125;
public static &lt;T&gt; Result&lt;T&gt; error(String msg) &#123;
Result result = new Result();
result.msg = msg;
result.code = 0;
return result;
&#125;
&#125;
</code></pre>
<h4 id="jwt令牌"><a class="anchor" href="#jwt令牌">#</a> JWT 令牌</h4>
<pre><code class="language-java">import com.auth0.jwt.JWT;
import com.auth0.jwt.algorithms.Algorithm;
import java.util.Date;
import java.util.Map;
public class JwtUtil &#123;
private static final String KEY = &quot;moying&quot;;
//接收业务数据,生成token并返回
public static String genToken(Map&lt;String, Object&gt; claims) &#123;
return JWT.create()
.withClaim(&quot;claims&quot;, claims)
.withExpiresAt(new Date(System.currentTimeMillis() + 1000 * 60 * 60 ))
.sign(Algorithm.HMAC256(KEY));
&#125;
//接收token,验证token,并返回业务数据
public static Map&lt;String, Object&gt; parseToken(String token) &#123;
return JWT.require(Algorithm.HMAC256(KEY))
.build()
.verify(token)
.getClaim(&quot;claims&quot;)
.asMap();
&#125;
&#125;
</code></pre>
<h2 id="配置类"><a class="anchor" href="#配置类">#</a> 配置类</h2>
<h4 id="redis序列化处理"><a class="anchor" href="#redis序列化处理">#</a> Redis (序列化处理)</h4>
<pre><code class="language-java">@Configuration
@Slf4j
public class RedisConfiguration&#123;
@Bean
public RedisTemplate redisTemplate(RedisConnectionFactory redisConnectionFactory)&#123;
log.info(&quot;开始构建redis模板对象&quot;);
RedisTemplate redisTemplate=new RedisTemplate();
//设置redis的连接工厂对象
redisTemplate.setConnectionFactory(redisConnectionFactory);
//设置redis key的序列化器
redisTemplate.setKeySerializer(new StringRedisSerializer());
return redisTemplate;
&#125;
&#125;
</code></pre>
<h4 id="拦截器配置"><a class="anchor" href="#拦截器配置">#</a> 拦截器配置</h4>
<pre><code class="language-java">public class WebMvcConfiguration extends WebMvcConfigurationSupport &#123;
/**
* 注册自定义拦截器
*
* @param registry
*/
protected void addInterceptors(InterceptorRegistry registry) &#123;
log.info(&quot;开始注册自定义拦截器...&quot;);
registry.addInterceptor(jwtTokenAdminInterceptor)
.addPathPatterns(&quot;/user/**&quot;)
.excludePathPatterns(&quot;/user/login&quot;,&quot;/user/register&quot;);
&#125;
&#125;
</code></pre>
<h4 id="阿里oss配置"><a class="anchor" href="#阿里oss配置">#</a> 阿里 oss 配置</h4>
<pre><code class="language-java">@Configuration
@Slf4j
public class OssConfiguration &#123;
@Bean
public AliOssUtil aliOssUtil(AliOssProperties aliOssProperties)
&#123;
log.info(&quot;开始创建阿里云文件上传工具类对象: &#123;&#125;&quot;,aliOssProperties);
return new AliOssUtil(aliOssProperties.getEndpoint(),
aliOssProperties.getAccessKeyId(),
aliOssProperties.getAccessKeySecret(),
aliOssProperties.getBucketName());
&#125;
&#125;
</code></pre>
]]></description>
</item>
<item>
<guid isPermalink="true">http://example.com/hello-world/</guid>
<title>Hello World</title>
<link>http://example.com/hello-world/</link>
<pubDate>Fri, 15 Mar 2024 18:47:51 +0800</pubDate>
<description><![CDATA[ <p>Welcome to <span class="exturl" data-url="aHR0cHM6Ly9oZXhvLmlvLw==">Hexo</span>! This is your very first post. Check <span class="exturl" data-url="aHR0cHM6Ly9oZXhvLmlvL2RvY3Mv">documentation</span> for more info. If you get any problems when using Hexo, you can find the answer in <span class="exturl" data-url="aHR0cHM6Ly9oZXhvLmlvL2RvY3MvdHJvdWJsZXNob290aW5nLmh0bWw=">troubleshooting</span> or you can ask me on <span class="exturl" data-url="aHR0cHM6Ly9naXRodWIuY29tL2hleG9qcy9oZXhvL2lzc3Vlcw==">GitHub</span>.</p>
<h2 id="quick-start"><a class="anchor" href="#quick-start">#</a> Quick Start</h2>
<h3 id="create-a-new-post"><a class="anchor" href="#create-a-new-post">#</a> Create a new post</h3>
<pre><code class="language-bash">$ hexo new &quot;My New Post&quot;
</code></pre>
<p>More info: <span class="exturl" data-url="aHR0cHM6Ly9oZXhvLmlvL2RvY3Mvd3JpdGluZy5odG1s">Writing</span></p>
<h3 id="run-server"><a class="anchor" href="#run-server">#</a> Run server</h3>
<pre><code class="language-bash">$ hexo server
</code></pre>
<p>More info: <span class="exturl" data-url="aHR0cHM6Ly9oZXhvLmlvL2RvY3Mvc2VydmVyLmh0bWw=">Server</span></p>
<h3 id="generate-static-files"><a class="anchor" href="#generate-static-files">#</a> Generate static files</h3>
<pre><code class="language-bash">$ hexo generate
</code></pre>
<p>More info: <span class="exturl" data-url="aHR0cHM6Ly9oZXhvLmlvL2RvY3MvZ2VuZXJhdGluZy5odG1s">Generating</span></p>
<h3 id="deploy-to-remote-sites"><a class="anchor" href="#deploy-to-remote-sites">#</a> Deploy to remote sites</h3>
<pre><code class="language-bash">$ hexo deploy
</code></pre>
<p>More info: <span class="exturl" data-url="aHR0cHM6Ly9oZXhvLmlvL2RvY3Mvb25lLWNvbW1hbmQtZGVwbG95bWVudC5odG1s">Deployment</span></p>
]]></description>
</item>
</channel>
</rss>