📄 csdn_文档中心_struts快速学习指南12(内部培训教材)-大部分素材来自于《programming jakarta struts》一书.htm
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<TD><B> Struts快速学习指南12(内部培训教材)-大部分素材来自于《Programming
Jakarta Struts》一书</B> lzasp800(原作) </TD></TR>
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<TD align=middle bgColor=#003399><FONT color=#ffffff>关键字</FONT></TD>
<TD width=500> Struts MVC Framework</TD></TR>
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<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-char-indent-count: 1.8; mso-pagination: widow-orphan"><FONT
size=2><SPAN lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA">msg</SPAN><SPAN
style="LAYOUT-GRID-MODE: both; COLOR: black; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'"><FONT
face=宋体>子元素支持三个属性,</FONT></SPAN><SPAN lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: black; FONT-FAMILY: 'Times New Roman'; mso-ansi-language: DA">DTD</SPAN><FONT
face=宋体><SPAN
style="LAYOUT-GRID-MODE: both; COLOR: black; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'">定义如下:</SPAN><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: black; FONT-FAMILY: 'Times New Roman'; mso-ansi-language: DA"><o:p></o:p></SPAN></FONT></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 17.95pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.56; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="FONT-SIZE: 11.5pt; LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><!ATTLIST
msg name CDATA
#IMPLIED<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="FONT-SIZE: 11.5pt; LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"> <SPAN
style="mso-spacerun: yes"> </SPAN>
key CDATA
#IMPLIED<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: normal; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="FONT-SIZE: 11.5pt; LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA">
<SPAN style="mso-spacerun: yes"> </SPAN>resource
CDATA #IMPLIED ><o:p></o:p></SPAN></P>
<P class=doctext
style="MARGIN: auto 0cm; TEXT-INDENT: 17.1pt; mso-char-indent-count: 1.71"><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>name</FONT></SPAN></TT><SPAN lang=DA
style="FONT-SIZE: 10pt; mso-ansi-language: DA"> </SPAN><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">属性指定了</SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>msg</FONT></SPAN></TT><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">将使用的校验规则名称,属性值必须是在</SPAN><SPAN
class=docemphasis1><SPAN lang=DA
style="FONT-SIZE: 10pt; mso-ansi-language: DA"><EM>validation-rules.xml</EM></SPAN></SPAN><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"> </SPAN><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">文件中定义的校验规则。</SPAN><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA">
<o:p></o:p></SPAN></P>
<P class=doctext
style="MARGIN: auto 0cm; TEXT-INDENT: 18pt; mso-char-indent-count: 1.8"><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>key</FONT></SPAN></TT><SPAN lang=DA
style="FONT-SIZE: 10pt; mso-ansi-language: DA"> </SPAN><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">属性指定了一个资源文件的关键字,当校验失败是,该关键字所代表的信息将会添加到</SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>ActionError</FONT></SPAN></TT><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中。如果你想设置一个明确的文本而不是资源文件的关键字,则可以将</SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>resource</FONT></SPAN></TT><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">属性设置位</SPAN><TT><SPAN
lang=EN-US style="FONT-SIZE: 10pt"><FONT
color=#354278>false</FONT></SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">,这种情况下,可以将</SPAN></TT><TT><SPAN
lang=EN-US style="FONT-SIZE: 10pt"><FONT
color=#354278>key</FONT></SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">属性设置为一个明确的文本,如“电话格式不正确</SPAN></TT><TT><SPAN
lang=EN-US
style="FONT-SIZE: 10pt; COLOR: windowtext">!</SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">”。</SPAN></TT><TT><SPAN
lang=EN-US style="FONT-SIZE: 10pt"><o:p></o:p></SPAN></TT></P>
<P class=doctext
style="MARGIN: auto 0cm; TEXT-INDENT: 18pt; mso-char-indent-count: 1.8"><SPAN
lang=EN-US style="FONT-SIZE: 10pt; mso-ansi-language: DA"><SPAN
style="mso-spacerun: yes"> </SPAN></SPAN><TT><SPAN lang=DA
style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>field</FONT></SPAN></TT><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">元素可以包含至多四个额外的子元素,它们分别命名为</SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>arg0</FONT></SPAN></TT><SPAN lang=DA
style="FONT-SIZE: 10pt; mso-ansi-language: DA">, </SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>arg1</FONT></SPAN></TT><SPAN lang=DA
style="FONT-SIZE: 10pt; mso-ansi-language: DA">, </SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>arg2</FONT></SPAN></TT><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>arg3</FONT></SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">,它们用来向提示信息中添加额外的信息,</SPAN></TT><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>arg0</FONT></SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">定义了第一个可替换的值,</SPAN></TT><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>arg1</FONT></SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">定义了第二个可替换的值,以此类推。每个</SPAN></TT><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>arg</FONT></SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">元素支持三个属性,</SPAN></TT><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>name</FONT></SPAN></TT><SPAN lang=DA
style="FONT-SIZE: 10pt; mso-ansi-language: DA">, </SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>key</FONT></SPAN></TT><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和</SPAN><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>resource</FONT></SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">,其含义和之前我们看到的</SPAN></TT><SPAN
lang=DA
style="FONT-SIZE: 10pt; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA">msg</SPAN><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">元素的同名属性含义一致。下面是一段应用</SPAN></TT><TT><SPAN
lang=DA style="FONT-SIZE: 10pt; mso-ansi-language: DA"><FONT
color=#354278>arg</FONT></SPAN></TT><TT><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-ansi-language: DA; mso-ascii-font-family: 'Courier New'; mso-hansi-font-family: 'Courier New'">元素的示例:</SPAN></TT><TT><SPAN
lang=DA
style="FONT-SIZE: 10pt; COLOR: windowtext; mso-ansi-language: DA"><o:p></o:p></SPAN></TT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><FONT
size=2><field property="phone" depends="required,mask,<B
style="mso-bidi-font-weight: normal">minLength</B>"><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><FONT
size=2> <arg0
key="registrationForm.firstname.displayname"/><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><FONT
size=2> <arg1 name="<B
style="mso-bidi-font-weight: normal">minlength</B>" key="<B
style="mso-bidi-font-weight: normal">${var:minLength}</B>"
resource="false"/><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><FONT
size=2> <var><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18.05pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><FONT
size=2><B><SPAN lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><SPAN
style="mso-spacerun: yes"> </SPAN> </SPAN></B><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA; mso-bidi-font-weight: bold"><var-name>mask</var-name></SPAN><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18.05pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><FONT
size=2><B><SPAN lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA">
</SPAN></B><SPAN lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA; mso-bidi-font-weight: bold"><var-value>${phone}</var-value></SPAN><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><FONT
size=2> </var>
<o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><FONT
size=2> <var><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
lang=DA
style="LAYOUT-GRID-MODE: both; COLOR: #354278; FONT-FAMILY: 'Courier New'; mso-ansi-language: DA"><FONT
size=2> <var-name><B
style="mso-bidi-font-weight: normal">minLength</B></var-name><o:p></o:p></FONT></SPAN></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: normal; mso-char-indent-count: 1.8; mso-pagination: widow-orphan; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><SPAN
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