📄 csdn_文档中心_struts快速学习指南17(内部培训教材)-大部分素材来自于《programming jakarta struts》一书.htm
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size=2><FONT face=宋体>该<SPAN
lang=EN-US>jsp页面用来显示项目信息列表，并提供查询功能。同时，提供按钮将用户导向到添加、修改、删除功能。<o:p></o:p></SPAN></FONT></FONT></P>
<H3 style="MARGIN: 6pt 0cm 3pt; TEXT-INDENT: 0cm"><A
name=_Toc70351683><SPAN lang=EN-US
style="mso-bidi-font-family: 宋体"><SPAN
style="mso-list: Ignore"><EM><FONT face=宋体
size=2>1.2.2</FONT></EM><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN lang=EN-US><EM><FONT face=宋体
size=2>projectform.jsp</FONT></EM></SPAN></A></H3>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 1.8"><FONT
size=2><FONT face=宋体>在执行添加、修改操作之前，需要提供一个<SPAN
lang=EN-US>form供用户输入数据，在执行删除操作之前，需要提供一个form将被删除数据显示出来，供用户确认。该jsp页面就是用来满足这些需要，提供对单条项目信息的显示，根据具体的操作类型(创建、修改、删除)，数据被显示在可编辑的输入控件中或不可编辑的label(文本标签)上。<o:p></o:p></SPAN></FONT></FONT></P>
<H3 style="MARGIN: 6pt 0cm 3pt; TEXT-INDENT: 0cm"><A
name=_Toc70351684><SPAN lang=EN-US
style="mso-bidi-font-family: 宋体"><SPAN
style="mso-list: Ignore"><EM><FONT face=宋体
size=2>1.2.3</FONT></EM><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN lang=EN-US><EM><FONT face=宋体
size=2>success.jsp</FONT></EM></SPAN></A></H3>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 1.8"><FONT
size=2><FONT
face=宋体>添加、修改、删除等操作正常完成后，提供一个页面显示“恭喜”信息，使得用户能够清楚知道自己的行为已经生效</FONT><SPAN
lang=EN-US
style="FONT-FAMILY: Wingdings; mso-ascii-font-family: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN
style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">J</SPAN></SPAN><FONT
face=宋体>。<SPAN lang=EN-US><o:p></o:p></SPAN></FONT></FONT></P>
<H3 style="MARGIN: 6pt 0cm 3pt; TEXT-INDENT: 0cm"><A
name=_Toc70351685><SPAN lang=EN-US
style="mso-bidi-font-family: 宋体"><SPAN
style="mso-list: Ignore"><EM><FONT face=宋体
size=2>1.2.4</FONT></EM><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN lang=EN-US><EM><FONT face=宋体
size=2>failed.jsp</FONT></EM></SPAN></A></H3>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 1.8"><FONT
size=2><FONT
face=宋体>添加、修改、删除等操作异常失败，提供一个页面显示“失败”信息，使得用户能够清楚知道自己的行为已经失败</FONT><SPAN
lang=EN-US
style="FONT-FAMILY: Wingdings; mso-ascii-font-family: 宋体; mso-hansi-font-family: 'Times New Roman'; mso-char-type: symbol; mso-symbol-font-family: Wingdings"><SPAN
style="mso-char-type: symbol; mso-symbol-font-family: Wingdings">L</SPAN></SPAN><FONT
face=宋体>。<SPAN lang=EN-US><o:p></o:p></SPAN></FONT></FONT></P>
<H3 style="MARGIN: 6pt 0cm 3pt; TEXT-INDENT: 0cm"><A
name=_Toc70351686><SPAN lang=EN-US
style="mso-bidi-font-family: 宋体"><SPAN
style="mso-list: Ignore"><EM><FONT face=宋体
size=2>1.2.5</FONT></EM><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN lang=EN-US><EM><FONT face=宋体
size=2>ProjectListSearchAction.java</FONT></EM></SPAN></A></H3>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 1.8"><FONT
size=2><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: 宋体">“</SPAN><SPAN
lang=EN-US><FONT face=宋体>Project</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: 宋体">”</SPAN><SPAN
lang=EN-US><FONT face=宋体>+</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: 宋体">”</SPAN><SPAN
lang=EN-US><FONT face=宋体>List</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: 宋体">”</SPAN><SPAN
lang=EN-US><FONT face=宋体>+</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: 宋体">”</SPAN><SPAN
lang=EN-US><FONT face=宋体>Search</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: 宋体">”</SPAN><SPAN
lang=EN-US><FONT face=宋体>+</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: 宋体">”</SPAN><SPAN
lang=EN-US><FONT face=宋体>Action</FONT></SPAN><SPAN lang=EN-US
style="FONT-FAMILY: 'Times New Roman'; mso-ascii-font-family: 宋体">”</SPAN><FONT
face=宋体>，组成了这个<SPAN
lang=EN-US>Action的名字，这是我个人的命名风格，表示这个Action会处理项目列表和查询事务。在projectlist.jsp被装载之前，ProjectListSearchAction需要将数据加载到scope指定的地方，供projectlist.jsp显示，当用户从projectlist.jsp中提交查询请求，该Action需要处理查询，并加载数据，供projectlist.jsp显示。<o:p></o:p></SPAN></FONT></FONT></P>
<H3 style="MARGIN: 6pt 0cm 3pt; TEXT-INDENT: 0cm"><A
name=_Toc70351687><SPAN lang=EN-US
style="mso-bidi-font-family: 宋体"><SPAN
style="mso-list: Ignore"><EM><FONT face=宋体
size=2>1.2.6</FONT></EM><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN lang=EN-US><EM><FONT face=宋体
size=2>ProjectFormLoadAction</FONT></EM></SPAN></A></H3>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 1.8"><FONT
size=2><FONT face=宋体>这个<SPAN
lang=EN-US>Action用来处理在显示projectform.jsp之前，将所需要的数据加载到scope指定的范围中，供projectform使用。</SPAN></FONT></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 36pt"><SPAN
lang=EN-US><o:p><FONT face=宋体 size=2> </FONT></o:p></SPAN></P>
<H3 style="MARGIN: 6pt 0cm 3pt; TEXT-INDENT: 0cm"><A
name=_Toc70351688><SPAN lang=EN-US
style="mso-bidi-font-family: 宋体"><SPAN
style="mso-list: Ignore"><EM><FONT face=宋体
size=2>1.2.7</FONT></EM><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN lang=EN-US><EM><FONT face=宋体
size=2>ProjectFormSaveAction.java</FONT></EM></SPAN></A></H3>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; mso-char-indent-count: 1.8"><FONT
size=2><FONT face=宋体>这个<SPAN
lang=EN-US>Action用来处理用户在projectform.jsp中提交的数据，根据用户的操作类型，完成具体的操作，并将合适的提示页面(success.jsp
or failed.jsp)显示给用户。</SPAN></FONT></FONT></P>
<H3 style="MARGIN: 6pt 0cm 3pt; TEXT-INDENT: 0cm"><A
name=_Toc70351689><SPAN lang=EN-US
style="mso-bidi-font-family: 宋体"><SPAN
style="mso-list: Ignore"><EM><FONT face=宋体
size=2>1.2.8</FONT></EM><SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><SPAN lang=EN-US><EM><FONT face=宋体
size=2>web.xml</FONT></EM></SPAN></A></H3>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt 36pt"><FONT
face=宋体><FONT size=2>在<SPAN
lang=EN-US>Struts安装那一节，我们已经知道web.xml文件的作用，通过这个文件，我们可以将ActionServlet配置好，用以截获用户对Struts应用的访问请求。下面是示例程序所用的web.xml内容：</SPAN></FONT></FONT></P>
<TABLE class=MsoTableGrid
style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid windowtext .5pt; mso-yfti-tbllook: 480; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext"
cellSpacing=0 cellPadding=0 border=1>
<TBODY>
<TR style="mso-yfti-irow: 0; mso-yfti-lastrow: yes">
<TD
style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 1pt solid; WIDTH: 478.8pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt"
vAlign=top width=638>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><?xml
version="1.0"
encoding="UTF-8"?><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT
size=2><!DOCTYPE web-app PUBLIC "-//Sun Microsystems,
Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd"><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT
size=2><web-app><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><display-name>simpledemo</display-name><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><description>Demo for using STRUTS to do some
thing about CRUD(Create,Read,Update,Delete) and any
more....</description><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><servlet><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes"> </SPAN><SPAN
style="COLOR: #3366ff"><servlet-name>action</servlet-name><o:p></o:p></SPAN></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN style="mso-spacerun: yes">
</SPAN><servlet-class><B
style="mso-bidi-font-weight: normal">org.apache.struts.action.ActionServlet</B></servlet-class><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN style="mso-spacerun: yes">
</SPAN><init-param><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN
style="mso-spacerun: yes">
</SPAN><param-name>config</param-name><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN
style="mso-spacerun: yes">
</SPAN><param-value><B
style="mso-bidi-font-weight: normal">/WEB-INF/struts-config.xml</B></param-value><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN style="mso-spacerun: yes">
</SPAN></init-param><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN style="mso-spacerun: yes">
</SPAN><init-param><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN
style="mso-spacerun: yes">
</SPAN><param-name>debug</param-name><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN
style="mso-spacerun: yes">
</SPAN><param-value>2</param-value><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN style="mso-spacerun: yes">
</SPAN></init-param><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="COLOR: #3366ff; FONT-FAMILY: Verdana"><FONT
size=2><SPAN style="mso-spacerun: yes">
</SPAN><load-on-startup>2</load-on-startup><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN></servlet><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><servlet><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><servlet-name>debugjsp</servlet-name><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><description>Added to compile JSPs with debug
info</description><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><init-param><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
style="mso-spacerun: yes">
</SPAN><param-name>classdebuginfo</param-name><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN
lang=EN-US style="FONT-FAMILY: Verdana"><FONT size=2><SPAN
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