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13.5.2 创建共享程序集
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13.5.2 创建共享程序集
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<div style='float:left;width:49%'>·<a href='100165410.htm'>13.4.3 全局程序集缓存工具(gacutil.exe)</a></div><div style='float:right;width:49%'>·<a href='100165411.htm'>13.5 创建共享程序集</a></div><div style='float:left;width:49%'>·<a href='100165412.htm'>13.5.1 共享程序集名</a></div><div style='float:right;width:49%'>·<a href='100165414.htm'>13.6 配置</a></div><div style='float:left;width:49%'>·<a href='100165415.htm'>13.6.1 配置类别</a></div><div style='float:right;width:49%'>·<a href='100165416.htm'>13.6.2 版本问题</a></div></div>
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<div id="text"> <link href="css.css" rel="stylesheet" type="text/css" /><h3 style="MARGIN-TOP: 8.15pt; MARGIN-LEFT: 0cm; MARGIN-RIGHT: 0cm; FTEL: 8.15pt"><a ftel="_Toc507815145"><span lang="ES">13.5.2 </span></a><span style="FONT-FAMILY: 黑体">创建共享程序集</span></h3>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">在本例中，创建一个共享程序集，再使用这个共享程序集创建一个客户程序。</span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">创建共享程序集与创建私有程序集密钥区别不大。首先建立一个简单的</span><span lang="EN-US">Visual C# Class Library</span><span style="FONT-FAMILY: 宋体">项目</span><span lang="EN-US">SharedDemo</span><span style="FONT-FAMILY: 宋体">。把命名空间改为</span><span lang="EN-US">Wrox.ProCSharp.Assemblies.Sharing</span><span style="FONT-FAMILY: 宋体">，类名改为</span><span lang="EN-US">SimpleShared</span><span style="FONT-FAMILY: 宋体">。输入下面的代码。类的构造函数把文件的所有行都将读取到</span><span lang="EN-US">StringCollection</span><span style="FONT-FAMILY: 宋体">中。文件名作为参数传送给构造函数。方法</span><span lang="EN-US">GetQuoteOfTheDay()</span><span style="FONT-FAMILY: 宋体">只返回这个集合的一个随机字符串。</span></p>
<p class="2" style="MARGIN-TOP: 8.15pt; LINE-HEIGHT: 10pt"><span lang="EN-US">using System;</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="EN-US">using System.Collections.Specialized;</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="EN-US">using System.IO;</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="EN-US"> </span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="EN-US">namespace Wrox.ProCSharp.Assemblies.Sharing</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="EN-US">{</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="EN-US"> public class SharedDemo </span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="ES"> {</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="ES"> private StringCollection quotes;</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="ES"> private Random random;</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="ES"> public SharedDemo(string filename)</span></p>
<p class="2" style="MARGIN-TOP: 2.5pt; LINE-HEIGHT: 10pt"><span lang="ES"> {</span></p>
<p class="2"><span lang="ES"> quotes = new StringCollection();</span></p>
<p class="2"><span lang="ES"> Stream stream = File.OpenRead(filename);</span></p>
<p class="2"><span lang="ES"> StreamReader streamReader = new StreamReader(stream);</span></p>
<p class="2"><span lang="ES"> string quote;</span></p>
<p class="2"><span lang="ES"> while ((quote = streamReader.ReadLine()) != null)</span></p>
<p class="2"><span lang="ES"> {</span></p>
<p class="2"><span lang="ES"> quotes.Add(quote);</span></p>
<p class="2"><span lang="ES"> }</span></p>
<p class="2"><span lang="ES"> streamReader.Close();</span></p>
<p class="2"><span lang="ES"> stream.Close();</span></p>
<p class="2"><span lang="ES"> random = new Random();</span></p>
<p class="2"><span lang="ES"> }</span></p>
<p class="2"><span lang="ES"> public string GetQuoteOfTheDay()</span></p>
<p class="2"><span lang="ES"> {</span></p>
<p class="2"><span lang="ES"> int index = random.Next(1, quotes.Count);</span></p>
<p class="2"><span lang="ES"> return quotes[index];</span></p>
<p class="2"><span lang="ES"> }</span></p>
<p class="2"><span lang="ES"> }</span></p>
<p class="2" style="FTEL: 8.15pt"><span lang="ES">}</span></p>
<h4><span lang="ES">1. </span><span style="FONT-FAMILY: 黑体">创建强名称</span></h4>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">要共享这个组件</span><span style="FONT-FAMILY: 宋体">，需要</span><span style="FONT-FAMILY: 宋体">一个强名称。要创建这个名称</span><span style="FONT-FAMILY: 宋体">，</span><span style="FONT-FAMILY: 宋体">可以使用强名称工具</span><span lang="ES">(sn)</span><span style="FONT-FAMILY: 宋体">：</span></p>
<p class="a6" style="MARGIN-TOP: 8.15pt; MARGIN-LEFT: 21.45pt; MARGIN-RIGHT: 0cm; FTEL: 8.15pt"><strong><span lang="EN-US">sn –k mykey.snk</span></strong></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">强名称工具生成和编写一个公钥</span><span lang="EN-US">/</span><span style="FONT-FAMILY: 宋体">私钥对，并把该密钥对写到文件中，此处的文件是</span><span lang="EN-US">mykey.snk</span><span style="FONT-FAMILY: 宋体">。现在可以在向导生成的文件</span><span lang="EN-US">Assemblyinfo.cs</span><span style="FONT-FAMILY: 宋体">中设置属性</span><span lang="EN-US">AssemblyKeyFile</span><span style="FONT-FAMILY: 宋体">。该属性可以设置为密钥文件的绝对路径，也可以设置为密钥文件的相对路径</span><span lang="EN-US">%ProjectDirectory%\ obj\<configuration> </span><span style="FONT-FAMILY: 宋体">目录，所以</span><span lang="EN-US">../../mykey.snk</span><span style="FONT-FAMILY: 宋体">引用项目目录中的一个密钥。在开始建立一个项目时，该密钥安装到</span><span lang="EN-US">Crypto Service Provider (CSP)</span><span style="FONT-FAMILY: 宋体">中。如果该密钥已经安装到</span><span lang="EN-US">CSP</span><span style="FONT-FAMILY: 宋体">中，就可以使用</span><span lang="EN-US">AssemblyKeyName</span><span style="FONT-FAMILY: 宋体">属性。</span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体; LETTER-SPACING: -0.1pt">下面是对</span><span lang="EN-US" style="LETTER-SPACING: -0.1pt">AssemblyInfo.cs </span><span style="FONT-FAMILY: 宋体; LETTER-SPACING: -0.1pt">的修改，属性</span><span lang="EN-US" style="LETTER-SPACING: -0.1pt">AssemblyKeyFile </span><span style="FONT-FAMILY: 宋体; LETTER-SPACING: -0.1pt">设置为文件</span><span lang="EN-US" style="LETTER-SPACING: -0.1pt">mykey.snk</span><span style="FONT-FAMILY: 宋体; LETTER-SPACING: -0.1pt">：</span></p>
<p class="2" style="MARGIN-TOP: 8.15pt"><span lang="ES">[assembly: AssemblyDelaySign(false)]</span></p>
<p class="2"><span lang="ES">[assembly: AssemblyKeyFile("../../mykey.snk")]</span></p>
<p class="2" style="FTEL: 8.15pt"><span lang="ES">[assembly: AssemblyKeyName("")]</span></p>
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