socket和servlet有什么异同

àì夳堔傛蜴生んèń 2022-06-01 08:43 198阅读 0赞

# socket和servlet有什么异同 \[问题点数：40分，结帖人lg\_asus\] #

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       结帖率：100% 
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     </div> 最近一边在看socket，一边看servlet，感觉这两个好像啊。都能实现客户端和服务器的通信。请问它们之间有什么异同吗？ 
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     <span style="">发表于： 2011-03-21 09:30:08&nbsp;</span> 
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      servlet不是服务端的后台吗……为了实现动态网页而推出的，所以提供的很多方法都和相应网页浏览时的请求有关。servlet不直接建立连接，它通过服务器获得请求，生成响应后再通过服务器传送出去。 
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     <span style="">回复于： 2011-03-21 09:40:45</span> 
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      异：名字不同 
     <br style=""> 同：网络通讯 
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     <span style="">回复于： 2011-03-21 10:17:45</span> 
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      servlet&nbsp;不建立连接，仅仅是处理http请求的内容。&nbsp;所有的输入输入输出电文都由applicationserver&nbsp;进行处理。到servlet时，已经转换成对象了。属于应用层的东西。 
     <br style=""> 
     <br style=""> socket&nbsp;需要自己建立连接，自己分析输入电文构造输出电文。&nbsp; 
     <br style=""> 
     <br style=""> 简单的说吧，socket努力点可以自己做一个applicationServer出来，而servlet没有applicationServer根本不能跑（UT除外）。 
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      <li style="list-style:none; margin:0px; padding:0px; border:none; outline:none 0px; width:820px; line-height:25px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap"> <a href="http://download.csdn.net/download/he_zhidan/1784676" title="快捷键与热键有何异同" style="background:transparent; color:rgb(51,90,164)" rel="nofollow">快捷键与热键有何异同</a></li> 
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     <span style="">回复于： 2011-03-21 10:23:36</span> 
     <span style="float:right; margin-left:50px"><a href="http://bbs.csdn.net/topics/360105032#post-362664012" style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">#3</a>&nbsp;得分：10</span> 
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      <a style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">对我有用[1]</a>&nbsp;|&nbsp; 
      <a style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">丢个板砖[1]</a>&nbsp;|&nbsp; 
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      <a href="http://my.csdn.net/orangemike" title="orangemike" style="background:transparent; color:rgb(51,90,164)" rel="nofollow">orangemike</a>&nbsp; 
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      两个东西不具有可比性. 
     <br style=""> 为了理解,你可以尝试为这两个词组词. 
     <br style=""> 比如通常我们会说"socket连接",也就是说socket是指明两个地址的连接通讯方式.和socket关联的东西大多是服务器,客户端,TCP,UDP,字节流之类的. 
     <br style=""> 而servlet我们会说使用"servlet技术"或"servlet方式",也就是服务器响应客户端的方式,与servlet关联的东西大多是web服务器,浏览器,jsp,asp,asp.net等. 
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      <li style="list-style:none; margin:0px; padding:0px; border:none; outline:none 0px; width:820px; line-height:25px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap"> <a href="http://download.csdn.net/download/u010863186/5463711" title="TCP协议和UDP协议的异同点是什么" style="background:transparent; color:rgb(51,90,164)" rel="nofollow">TCP协议和UDP协议的异同点是什么</a></li> 
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     <span style="">回复于： 2011-03-21 10:29:10</span> 
     <span style="float:right; margin-left:50px"><a href="http://bbs.csdn.net/topics/360105032#post-362664194" style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">#4</a>&nbsp;得分：5</span> 
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      <a style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">对我有用[1]</a>&nbsp;|&nbsp; 
      <a style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">丢个板砖[1]</a>&nbsp;|&nbsp; 
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      不同的东西哦。。。 
     <br style=""> Socket是用于网络通信的接口，如：通过socket上的tcp\ip协议、udp协议通信 
     <br style=""> servlet则是运行在web容器里的程序，接收http传来的请求和响应该请求 
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     <span style="">回复于： 2011-03-21 10:37:45</span> 
     <span style="float:right; margin-left:50px"><a href="http://bbs.csdn.net/topics/360105032#post-362664486" style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">#5</a>&nbsp;得分：0</span> 
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      <a style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">对我有用[0]</a>&nbsp;|&nbsp; 
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      #4,#5根本胡说八道 
     <br style=""> 
     <br style=""> Socket是j2se在网络编程这块最基本的东西。把一系列网络io复杂性封装。但是光有io，光能传输数据，不足以完成标准化的网络通信。所以在这个基础上，加入了协议支持。比如web容器(tomcat等)加入了http协议的解析(所谓的协议，就是一系列带有标准格式的字符串)。而把里面可以独立给程序员的模型接口抽取出来，就是Servlet。所以，Servlet可以看做是web容器运行的一部分逻辑(请求和响应，即request和response其实可以看成是dto，最后执行完servlet.service方法后，由容器传递给socket类的outputstream，完成相关操作)。而Socket则是web容器的核心(负责交换协议)。 
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     <span style="">回复于： 2011-03-21 10:52:56</span> 
     <span style="float:right; margin-left:50px"><a href="http://bbs.csdn.net/topics/360105032#post-362664999" style="background:transparent; color:rgb(102,102,102); margin:0px 2px" rel="nofollow">#6</a>&nbsp;得分：10</span> 
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