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📁 struts开发实例
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<p class="MsoNormal" align="center" style="text-align:center"><b>
<span style="font-size: 16.0pt; font-family: 宋体">如何在Struts 数据库应用程序中实现记录的删除、更新及链接</span></b></p>
<p class="MsoNormal"><b><span style="font-size: 24.0pt; font-family: 宋体">&nbsp;</span></b></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal" style="text-indent: 20.65pt"><b>
<span style="font-family: 宋体">重点提示：</span><span style="font-size: 9.0pt; font-family: 宋体">JSPOUT属性页的设置是本例唯一与《如何实现Struts 
数据库应用程序》中的步骤不同之处，这是本例的核心内容。我们要做的仅仅是在JSPOUT属性页的设置中把“记录操作”选择项中分别选定记录的删除、更新及链接即可。</span></b></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><b><span lang="EN-US">[</span><span style="font-family: 宋体">目标</span><span lang="EN-US">]</span></b></p>
<p class="MsoNormal" style="text-indent: 21.0pt"><span style="font-family: 宋体">
本例的目标是实现一个具有记录删除、更新和链接功能的</span><span lang="EN-US">Struts </span>
<span style="font-family: 宋体">数据库应用程序。其功能是从</span><span lang="EN-US">SQL</span><span style="font-family: 宋体">　</span><span lang="EN-US">Server 
2000</span><span style="font-family: 宋体">中读取数据，并以表格的形式在输出页中显示出来。</span></p>
<p class="MsoNormal"><span style="font-family: 宋体">定义一个名为“</span><span lang="EN-US">Test</span><span style="font-family: 宋体">”表的字段：</span></p>
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<p class="MsoNormal" style="text-indent: 21.0pt"><span style="font-family: 宋体">
录入一些测试数据：</span></p>
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<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp; </span></p>
<p class="MsoNormal"><b><span lang="EN-US">[</span><span style="font-family: 宋体">效果</span><span lang="EN-US">]</span></b></p>
<p class="MsoNormal"><span style="font-family: 宋体">输入页面</span><span lang="EN-US">(</span><span style="font-family: 宋体">选择“全部显示”</span><span lang="EN-US">)</span><span style="font-family: 宋体">：</span></p>
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<p class="MsoNormal"><span style="font-family: 宋体">输出页面：</span></p>
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src="in11_db_update_files/image008.jpg" v:shapes="_x0000_s1028"><![endif]></span></p>
<p class="MsoNormal"><span style="font-family: 宋体">选择“编辑”功能，并编辑表格中的数据：</span></p>
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<p class="MsoNormal"><span style="font-family: 宋体">更新记录：</span></p>
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<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><b><span lang="EN-US">[</span><span style="font-family: 宋体">背景知识</span><span lang="EN-US">]</span></b></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:14.0pt">[</span><span style="font-size: 14.0pt; font-family: 宋体">步骤</span><span lang="EN-US" style="font-size:14.0pt">]</span></b></p>
<p class="MsoNormal"><b><span style="font-size: 9.0pt; font-family: 宋体">
本例与《如何实现Struts 数据库应用程序》中的步骤相比，除了在</span></b><span lang="EN-US">Struts</span><span style="font-family: 宋体">数据库应用文件向导中</span><b><span style="font-size: 9.0pt; font-family: 宋体">多一个JSPOUT属性页设置之外，其它步骤完全一样，这样相同的步骤详情见《如何实现Struts 
数据库应用程序》。</span></b></p>
<p class="MsoNormal"><span lang="EN-US">1</span><span style="font-family: 宋体">、打开</span><span lang="EN-US">Visual 
Struts</span><span style="font-family: 宋体">开发环境：</span></p>
<p class="MsoNormal" style="text-indent: 26.25pt"><span style="font-family: 宋体">
从桌面</span><span lang="EN-US">JavaWebStudio</span><span style="font-family: 宋体">快揵或</span><span lang="EN-US">BIN</span><span style="font-family: 宋体">目录下的</span><span lang="EN-US">JavaWebStudio.exe</span><span style="font-family: 宋体">文件启动</span><span lang="EN-US">JavaWebStudio</span><span style="font-family: 宋体">的</span><span lang="EN-US">Visual 
Struts</span><span style="font-family: 宋体">开发环境。</span></p>
<p class="MsoNormal"><span lang="EN-US">2</span><span style="font-family: 宋体">、建立一个“空的</span><span lang="EN-US">Struts</span><span style="font-family: 宋体">数据库应用模板”应用程序：</span></p>
<p class="MsoNormal"><span lang="EN-US">&nbsp;&nbsp;&nbsp; </span>
<span style="font-family: 宋体">选择菜单“文件”</span><span lang="EN-US">—</span><span style="font-family: 宋体">“新建”</span><span lang="EN-US">—</span><span style="font-family: 宋体">“新建项目”，弹出新建项目对话框，如图</span><span lang="EN-US">3-1</span><span style="font-family: 宋体">所示：</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt"><span style="font-family: 宋体">
在对话框中选择“空的</span><span lang="EN-US">Struts</span><span style="font-family: 宋体">数据库应用模板”，在项目名称中输入“</span><span lang="EN-US">DBApp</span><span style="font-family: 宋体">”，</span><span lang="EN-US">package 
(</span><span style="font-family: 宋体">包名</span><span lang="EN-US">)</span><span style="font-family: 宋体">和位置（项目的路径）采用默认的值就行，当然也可以根据需要改变。最后点击“确定”按钮完成新项目的建立。</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt"><span style="font-family: 宋体">在</span><span lang="EN-US">DBApp</span><span style="font-family: 宋体">项目根目录下包含四个子目录和两个文件，这是</span><span lang="EN-US">JSPStudio</span><span style="font-family: 宋体">项目的标准结构，最好不要改变它们默认的名称，否则会出现问题。</span></p>
<p class="MsoNormal"><span lang="EN-US">3</span><span style="font-family: 宋体">、利用</span><span lang="EN-US">Struts</span><span style="font-family: 宋体">数据库应用文件向导建立新的应用：</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt"><span style="font-family: 宋体">在</span><span lang="EN-US">JSPStudio</span><span style="font-family: 宋体">文件管理器内点击鼠标右键，在弹出的菜单中选择“</span><span lang="EN-US">Struts</span><span style="font-family: 宋体">数据库应用文件向导”进入</span><span lang="EN-US">Struts</span><span style="font-family: 宋体">文件向导对话框，也可以选择菜单“文件”</span><span lang="EN-US">—</span><span style="font-family: 宋体">“新建”</span><span lang="EN-US">—</span><span style="font-family: 宋体">“</span><span lang="EN-US">Struts</span><span style="font-family: 宋体">数据库应用文件向导”进入</span><span lang="EN-US">Struts</span><span style="font-family: 宋体">文件向导对话框。</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt"><span style="font-family: 宋体">在</span><span lang="EN-US">Struts</span><span style="font-family: 宋体">文件向导对话框</span><span lang="EN-US">JSP</span><span style="font-family: 宋体">文件标签下的文件名输入栏中输入“</span><span lang="EN-US">DbList</span><span style="font-family: 宋体">”文件名，其它文件采用默认的设置。</span></p>
<p class="MsoNormal" style="text-indent: 21.0pt"><span lang="EN-US">&nbsp;</span></p>
<p class="MsoNormal"><span style="font-family: 宋体">（</span><span lang="EN-US">1</span><span style="font-family: 宋体">）输入文件名：</span></p>
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 id="_x0000_s1031" type="#_x0000_t75" style='width:468pt;height:314.25pt'>
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