<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>JAVA sun HttpServer &#8211; 编码无悔 /  Intent &amp; Focused</title>
	<atom:link href="https://www.codelast.com/tag/java-sun-httpserver/feed/" rel="self" type="application/rss+xml" />
	<link>https://www.codelast.com</link>
	<description>最优化之路</description>
	<lastBuildDate>Thu, 23 Mar 2023 09:10:14 +0000</lastBuildDate>
	<language>zh-Hans</language>
	<sy:updatePeriod>
	hourly	</sy:updatePeriod>
	<sy:updateFrequency>
	1	</sy:updateFrequency>
	<generator>https://wordpress.org/?v=6.9.4</generator>
	<item>
		<title>[原创] JAVA sun HttpServer在handler中返回含中文的response应该怎么处理</title>
		<link>https://www.codelast.com/%e5%8e%9f%e5%88%9b-java-sun-httpserver%e5%9c%a8handler%e4%b8%ad%e8%bf%94%e5%9b%9e%e5%90%ab%e4%b8%ad%e6%96%87%e7%9a%84response%e5%ba%94%e8%af%a5%e6%80%8e%e4%b9%88%e5%a4%84%e7%90%86/</link>
					<comments>https://www.codelast.com/%e5%8e%9f%e5%88%9b-java-sun-httpserver%e5%9c%a8handler%e4%b8%ad%e8%bf%94%e5%9b%9e%e5%90%ab%e4%b8%ad%e6%96%87%e7%9a%84response%e5%ba%94%e8%af%a5%e6%80%8e%e4%b9%88%e5%a4%84%e7%90%86/#respond</comments>
		
		<dc:creator><![CDATA[learnhard]]></dc:creator>
		<pubDate>Thu, 23 Mar 2023 09:10:14 +0000</pubDate>
				<category><![CDATA[原创]]></category>
		<category><![CDATA[综合]]></category>
		<category><![CDATA[handler]]></category>
		<category><![CDATA[JAVA sun HttpServer]]></category>
		<category><![CDATA[中文]]></category>
		<guid isPermaLink="false">https://www.codelast.com/?p=13856</guid>

					<description><![CDATA[<div>
	在JAVA中，使用sun HttpServer实现一个web server的时候，使用了下面的hander类来处理请求：</div>
<div>
<section class="output_wrapper" id="output_wrapper_id" style="font-size: 16px; color: rgb(62, 62, 62); line-height: 1.6; letter-spacing: 0px; font-family: &#34;Helvetica Neue&#34;, Helvetica, &#34;Hiragino Sans GB&#34;, &#34;Microsoft YaHei&#34;, Arial, sans-serif;">
<pre style="font-size: inherit; color: inherit; line-height: inherit; margin-top: 0px; margin-bottom: 0px; padding: 0px;">
<code class="java language-java hljs" style="margin: 0px 2px; line-height: 18px; font-size: 14px; letter-spacing: 0px; font-family: Consolas, Inconsolata, Courier, monospace; border-radius: 0px; color: rgb(169, 183, 198); background: rgb(40, 43, 46); padding: 0.5em; overflow-wrap: normal !important; word-break: normal !important; overflow: auto !important; display: -webkit-box !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">static</span>&#160;<span class="hljs-class" style="font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; word-wrap: inherit !important; word-break: inherit !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">class</span>&#160;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">MyHandler</span>&#160;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">implements</span>&#160;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">HttpHandler</span>&#160;</span>{
&#160;&#160;<span class="hljs-meta" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(91, 218, 237); word-wrap: inherit !important; word-break: inherit !important;">@Override</span>
&#160;&#160;<span class="hljs-function" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">public</span>&#160;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">void</span>&#160;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">handle</span><span class="hljs-params" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(255, 152, 35); word-wrap: inherit !important; word-break: inherit !important;">(HttpExchange&#160;httpExchange)</span>&#160;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">throws</span>&#160;IOException&#160;</span>{
&#160;&#160;&#160;&#160;String&#160;response&#160;=&#160;<span class="hljs-string" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(238, 220, 112); word-wrap: inherit !important; word-break: inherit !important;">&#34;test&#34;</span>;&#160;&#160;<span class="hljs-comment" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(128, 128, 128); word-wrap: inherit !important; word-break: inherit !important;">//&#160;返回固定内容</span>
&#160;&#160;&#160;&#160;httpExchange.sendResponseHeaders(<span class="hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(174, 135, 250); word-wrap: inherit !important; word-break: inherit !important;">200</span>,&#160;response.length());
&#160;&#160;&#160;&#160;OutputStream&#160;os&#160;=&#160;httpExchange.getResponseBody();
&#160;&#160;&#160;&#160;os.write(response.getBytes());
&#160;&#160;&#160;&#160;os.close();
&#160;&#160;}
}
</code></pre>
</section>
</div>
<div>
<span id="more-13856"></span>	<br />
	如果要在response里返回带中文的内容，例如：</div>
<blockquote>
<div>
		String response = &#34;中文&#34;;</div>
</blockquote>
<div>
	那么你就会发现访问这个web server返回的是null，这说明handler实现有问题。那么代码应该怎么改？<br />
	<span style="color: rgb(255, 255, 255);">文章来源：</span><a href="https://www.codelast.com/" rel="noopener noreferrer" target="_blank"><span style="color: rgb(255, 255, 255);">https://www.codelast.com/</span></a></div>&#8230; <a href="https://www.codelast.com/%e5%8e%9f%e5%88%9b-java-sun-httpserver%e5%9c%a8handler%e4%b8%ad%e8%bf%94%e5%9b%9e%e5%90%ab%e4%b8%ad%e6%96%87%e7%9a%84response%e5%ba%94%e8%af%a5%e6%80%8e%e4%b9%88%e5%a4%84%e7%90%86/" class="read-more">Read More </a>]]></description>
										<content:encoded><![CDATA[<div>
	在JAVA中，使用sun HttpServer实现一个web server的时候，使用了下面的hander类来处理请求：</div>
<div>
<section class="output_wrapper" id="output_wrapper_id" style="font-size: 16px; color: rgb(62, 62, 62); line-height: 1.6; letter-spacing: 0px; font-family: &quot;Helvetica Neue&quot;, Helvetica, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif;">
<pre style="font-size: inherit; color: inherit; line-height: inherit; margin-top: 0px; margin-bottom: 0px; padding: 0px;">
<code class="java language-java hljs" style="margin: 0px 2px; line-height: 18px; font-size: 14px; letter-spacing: 0px; font-family: Consolas, Inconsolata, Courier, monospace; border-radius: 0px; color: rgb(169, 183, 198); background: rgb(40, 43, 46); padding: 0.5em; overflow-wrap: normal !important; word-break: normal !important; overflow: auto !important; display: -webkit-box !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">static</span>&nbsp;<span class="hljs-class" style="font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; word-wrap: inherit !important; word-break: inherit !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">class</span>&nbsp;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">MyHandler</span>&nbsp;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">implements</span>&nbsp;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">HttpHandler</span>&nbsp;</span>{
&nbsp;&nbsp;<span class="hljs-meta" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(91, 218, 237); word-wrap: inherit !important; word-break: inherit !important;">@Override</span>
&nbsp;&nbsp;<span class="hljs-function" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">public</span>&nbsp;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">void</span>&nbsp;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">handle</span><span class="hljs-params" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(255, 152, 35); word-wrap: inherit !important; word-break: inherit !important;">(HttpExchange&nbsp;httpExchange)</span>&nbsp;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">throws</span>&nbsp;IOException&nbsp;</span>{
&nbsp;&nbsp;&nbsp;&nbsp;String&nbsp;response&nbsp;=&nbsp;<span class="hljs-string" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(238, 220, 112); word-wrap: inherit !important; word-break: inherit !important;">&quot;test&quot;</span>;&nbsp;&nbsp;<span class="hljs-comment" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(128, 128, 128); word-wrap: inherit !important; word-break: inherit !important;">//&nbsp;返回固定内容</span>
&nbsp;&nbsp;&nbsp;&nbsp;httpExchange.sendResponseHeaders(<span class="hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(174, 135, 250); word-wrap: inherit !important; word-break: inherit !important;">200</span>,&nbsp;response.length());
&nbsp;&nbsp;&nbsp;&nbsp;OutputStream&nbsp;os&nbsp;=&nbsp;httpExchange.getResponseBody();
&nbsp;&nbsp;&nbsp;&nbsp;os.write(response.getBytes());
&nbsp;&nbsp;&nbsp;&nbsp;os.close();
&nbsp;&nbsp;}
}
</code></pre>
</section>
</div>
<div>
<span id="more-13856"></span>	<br />
	如果要在response里返回带中文的内容，例如：</div>
<blockquote>
<div>
		String response = &quot;中文&quot;;</div>
</blockquote>
<div>
	那么你就会发现访问这个web server返回的是null，这说明handler实现有问题。那么代码应该怎么改？<br />
	<span style="color: rgb(255, 255, 255);">文章来源：</span><a href="https://www.codelast.com/" rel="noopener noreferrer" target="_blank"><span style="color: rgb(255, 255, 255);">https://www.codelast.com/</span></a><br />
	如下：</p>
<section class="output_wrapper" id="output_wrapper_id" style="font-size: 16px; color: rgb(62, 62, 62); line-height: 1.6; letter-spacing: 0px; font-family: &quot;Helvetica Neue&quot;, Helvetica, &quot;Hiragino Sans GB&quot;, &quot;Microsoft YaHei&quot;, Arial, sans-serif;">
<pre style="font-size: inherit; color: inherit; line-height: inherit; margin-top: 0px; margin-bottom: 0px; padding: 0px;">
<code class="java language-java hljs" style="margin: 0px 2px; line-height: 18px; font-size: 14px; letter-spacing: 0px; font-family: Consolas, Inconsolata, Courier, monospace; border-radius: 0px; color: rgb(169, 183, 198); background: rgb(40, 43, 46); padding: 0.5em; overflow-wrap: normal !important; word-break: normal !important; overflow: auto !important; display: -webkit-box !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">static</span>&nbsp;<span class="hljs-class" style="font-size: inherit; color: inherit; line-height: inherit; margin: 0px; padding: 0px; word-wrap: inherit !important; word-break: inherit !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">class</span>&nbsp;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">MyHandler</span>&nbsp;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">implements</span>&nbsp;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">HttpHandler</span>&nbsp;</span>{
&nbsp;&nbsp;<span class="hljs-meta" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(91, 218, 237); word-wrap: inherit !important; word-break: inherit !important;">@Override</span>
&nbsp;&nbsp;<span class="hljs-function" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;"><span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">public</span>&nbsp;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">void</span>&nbsp;<span class="hljs-title" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(165, 218, 45); word-wrap: inherit !important; word-break: inherit !important;">handle</span><span class="hljs-params" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(255, 152, 35); word-wrap: inherit !important; word-break: inherit !important;">(HttpExchange&nbsp;httpExchange)</span>&nbsp;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; overflow-wrap: inherit !important; word-break: inherit !important;">throws</span>&nbsp;IOException&nbsp;</span>{
&nbsp;&nbsp;&nbsp;&nbsp;String&nbsp;response&nbsp;=&nbsp;<span class="hljs-string" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(238, 220, 112); word-wrap: inherit !important; word-break: inherit !important;">&quot;中文&quot;</span>;
&nbsp;&nbsp;&nbsp;&nbsp;<span class="hljs-keyword" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(248, 35, 117); word-wrap: inherit !important; word-break: inherit !important;">byte</span>[]&nbsp;bytes&nbsp;=&nbsp;response.getBytes(StandardCharsets.UTF_8);&nbsp;<span class="hljs-comment" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(128, 128, 128); word-wrap: inherit !important; word-break: inherit !important;">//&nbsp;转换为字节数组，指定编码为UTF-8</span>
&nbsp;&nbsp;&nbsp;&nbsp;httpExchange.sendResponseHeaders(<span class="hljs-number" style="font-size: inherit; line-height: inherit; margin: 0px; padding: 0px; color: rgb(174, 135, 250); word-wrap: inherit !important; word-break: inherit !important;">200</span>,&nbsp;bytes.length);
&nbsp;&nbsp;&nbsp;&nbsp;OutputStream&nbsp;os&nbsp;=&nbsp;httpExchange.getResponseBody();
&nbsp;&nbsp;&nbsp;&nbsp;os.write(bytes);
&nbsp;&nbsp;&nbsp;&nbsp;os.close();
&nbsp;&nbsp;}
}
</code></pre>
</section>
</div>
<div>
	此时你会发现，向server发请求返回的不再是null而是正确的内容了。</p>
<p>
		<span style="color: rgb(255, 255, 255);">文章来源：</span><a href="https://www.codelast.com/" rel="noopener noreferrer" target="_blank"><span style="color: rgb(255, 255, 255);">https://www.codelast.com/</span></a><br />
		<span style="color: rgb(255, 0, 0);">➤➤</span>&nbsp;版权声明&nbsp;<span style="color: rgb(255, 0, 0);">➤➤</span>&nbsp;<br />
		转载需注明出处：<u><a href="https://www.codelast.com/" rel="noopener noreferrer" target="_blank"><em><span style="color: rgb(0, 0, 255);"><strong style="font-size: 16px;"><span style="font-family: arial, helvetica, sans-serif;">codelast.com</span></strong></span></em></a></u>&nbsp;<br />
		感谢关注我的微信公众号（微信扫一扫）：<br />
		<img decoding="async" alt="wechat qrcode of codelast" src="https://www.codelast.com/codelast_wechat_qr_code.jpg" style="color: rgb(77, 77, 77); font-size: 13px; width: 200px; height: 200px;" /><br />
		以及我的微信视频号：</p>
<p style="border: 0px; font-size: 13px; margin: 0px 0px 9px; outline: 0px; padding: 0px; color: rgb(77, 77, 77);">
		<img decoding="async" alt="" src="https://www.codelast.com/wechat_shipinhao_qr_code.jpg" style="text-align: center; width: 200px; height: 199px;" /></p>
</div>
]]></content:encoded>
					
					<wfw:commentRss>https://www.codelast.com/%e5%8e%9f%e5%88%9b-java-sun-httpserver%e5%9c%a8handler%e4%b8%ad%e8%bf%94%e5%9b%9e%e5%90%ab%e4%b8%ad%e6%96%87%e7%9a%84response%e5%ba%94%e8%af%a5%e6%80%8e%e4%b9%88%e5%a4%84%e7%90%86/feed/</wfw:commentRss>
			<slash:comments>0</slash:comments>
		
		
			</item>
	</channel>
</rss>
