在struts 2_0中实现表单数据校验（validation） - max on java - blogjava.htm

struts2标签的详细解释说明教程

align=top> &nbsp; &nbsp; &nbsp; &nbsp;System.out.println(</SPAN> <SPAN 
style="COLOR: #000000">"</SPAN> <SPAN style="COLOR: #000000">Calling 
execute()<IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/dot.gif"></SPAN> 
<SPAN style="COLOR: #000000">"</SPAN> <SPAN style="COLOR: #000000">);<BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/InBlock.gif" 
align=top> &nbsp; &nbsp; &nbsp; &nbsp;</SPAN> <SPAN 
style="COLOR: #008000">//</SPAN> <SPAN 
style="COLOR: #008000">LocalizedTextUtil是Struts 
2.0中国际化的工具类，&lt;s:text&gt;标志就是通过调用它实现国际化的</SPAN> <SPAN 
style="COLOR: #008000"><BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/InBlock.gif" 
align=top> </SPAN><SPAN style="COLOR: #000000">&nbsp;&nbsp; &nbsp;&nbsp; &nbsp; 
&nbsp; &nbsp;msg </SPAN><SPAN style="COLOR: #000000">=</SPAN> <SPAN 
style="COLOR: #000000">LocalizedTextUtil.findDefaultText(</SPAN> <SPAN 
style="COLOR: #000000">"</SPAN> <SPAN style="COLOR: #000000">HelloWorld</SPAN> 
<SPAN style="COLOR: #000000">"</SPAN> <SPAN style="COLOR: #000000">, 
loc);<BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/InBlock.gif" 
align=top> &nbsp; &nbsp; &nbsp; &nbsp;</SPAN> <SPAN 
style="COLOR: #0000ff">return</SPAN> <SPAN 
style="COLOR: #000000">SUCCESS;<BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/ExpandedSubBlockEnd.gif" 
align=top> &nbsp; &nbsp;}</SPAN> </SPAN><SPAN style="COLOR: #000000"><BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/ExpandedBlockEnd.gif" 
align=top>}</SPAN> </SPAN></DIV>
<P>然后，修改Struts.xml中Action的定义指明输入地址：</P>
<DIV 
style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN 
style="COLOR: #0000ff">&lt;</SPAN> <SPAN style="COLOR: #800000">action 
</SPAN><SPAN style="COLOR: #ff0000">name</SPAN> <SPAN 
style="COLOR: #0000ff">="HelloWorld"</SPAN> <SPAN 
style="COLOR: #ff0000">class</SPAN> <SPAN 
style="COLOR: #0000ff">="tutorial.HelloWorld"</SPAN> <SPAN 
style="COLOR: #0000ff">&gt;</SPAN> <SPAN style="COLOR: #000000"><BR>&nbsp; 
&nbsp; </SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> <SPAN 
style="COLOR: #800000">result</SPAN> <SPAN style="COLOR: #0000ff">&gt;</SPAN> 
<SPAN style="COLOR: #000000">/HelloWorld.jsp</SPAN> <SPAN 
style="COLOR: #0000ff">&lt;/</SPAN> <SPAN style="COLOR: #800000">result</SPAN> 
<SPAN style="COLOR: #0000ff">&gt;</SPAN> <SPAN style="COLOR: #000000"><BR>&nbsp; 
&nbsp; </SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> <SPAN 
style="COLOR: #800000">result </SPAN><SPAN style="COLOR: #ff0000">name</SPAN> 
<SPAN style="COLOR: #0000ff">="input"</SPAN> <SPAN 
style="COLOR: #0000ff">&gt;</SPAN> <SPAN 
style="COLOR: #000000">/HelloWorld.jsp</SPAN> <SPAN 
style="COLOR: #0000ff">&lt;/</SPAN> <SPAN style="COLOR: #800000">result</SPAN> 
<SPAN style="COLOR: #0000ff">&gt;</SPAN> <SPAN 
style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #0000ff">&lt;/</SPAN> 
<SPAN style="COLOR: #800000">action</SPAN> <SPAN 
style="COLOR: #0000ff">&gt;</SPAN> </DIV>
<P>接着，在HelloWorld.jsp中加入错误提示：</P>
<DIV 
style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00">&lt;%</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">@ page 
&nbsp;contentType</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">text/html; 
charset=UTF-8</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00">%&gt;</SPAN> <SPAN 
style="COLOR: #000000"><BR></SPAN><SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00">&lt;%</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">@taglib prefix</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">s</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">uri</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">=</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">/struts-tags</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5">"</SPAN> <SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #f5f5f5"></SPAN><SPAN 
style="COLOR: #000000; BACKGROUND-COLOR: #ffff00">%&gt;</SPAN> <SPAN 
style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> <SPAN 
style="COLOR: #800000">html</SPAN> <SPAN style="COLOR: #0000ff">&gt;</SPAN> 
<SPAN style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> 
<SPAN style="COLOR: #800000">head</SPAN> <SPAN 
style="COLOR: #0000ff">&gt;</SPAN> <SPAN style="COLOR: #000000"><BR>&nbsp; 
&nbsp; </SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> <SPAN 
style="COLOR: #800000">title</SPAN> <SPAN style="COLOR: #0000ff">&gt;</SPAN> 
<SPAN style="COLOR: #000000">Hello World</SPAN> <SPAN 
style="COLOR: #0000ff">&lt;/</SPAN> <SPAN style="COLOR: #800000">title</SPAN> 
<SPAN style="COLOR: #0000ff">&gt;</SPAN> <SPAN 
style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #0000ff">&lt;/</SPAN> 
<SPAN style="COLOR: #800000">head</SPAN> <SPAN 
style="COLOR: #0000ff">&gt;</SPAN> <SPAN style="COLOR: #000000"><BR></SPAN><SPAN 
style="COLOR: #0000ff">&lt;</SPAN> <SPAN style="COLOR: #800000">body</SPAN> 
<SPAN style="COLOR: #0000ff">&gt;</SPAN> <SPAN style="COLOR: #000000"><BR>&nbsp; 
&nbsp; </SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> <SPAN 
style="COLOR: #800000">div </SPAN><SPAN style="COLOR: #ff0000">style</SPAN> 
<SPAN style="COLOR: #0000ff">="color:red;"</SPAN> <SPAN 
style="COLOR: #0000ff">&gt;</SPAN> <SPAN style="COLOR: #000000"><BR>&nbsp; 
&nbsp; &nbsp; &nbsp; </SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> <SPAN 
style="COLOR: #800000">s:fielderror </SPAN><SPAN 
style="COLOR: #0000ff">/&gt;</SPAN> <SPAN style="COLOR: #000000"><BR>&nbsp; 
&nbsp; </SPAN><SPAN style="COLOR: #0000ff">&lt;/</SPAN> <SPAN 
style="COLOR: #800000">div</SPAN> <SPAN style="COLOR: #0000ff">&gt;</SPAN> <SPAN 
style="COLOR: #000000"><BR>&nbsp; &nbsp; </SPAN><SPAN 
style="COLOR: #0000ff">&lt;</SPAN> <SPAN style="COLOR: #800000">s:form 
</SPAN><SPAN style="COLOR: #ff0000">action</SPAN> <SPAN 
style="COLOR: #0000ff">="HelloWorld"</SPAN> <SPAN 
style="COLOR: #ff0000">theme</SPAN> <SPAN 
style="COLOR: #0000ff">="simple"</SPAN> <SPAN style="COLOR: #0000ff">&gt;</SPAN> 
<SPAN style="COLOR: #000000">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<BR>&nbsp; 
&nbsp; &nbsp; &nbsp; Locale: </SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> 
<SPAN style="COLOR: #800000">s:textfield </SPAN><SPAN 
style="COLOR: #ff0000">name</SPAN> <SPAN style="COLOR: #0000ff">="loc"</SPAN> 
<SPAN style="COLOR: #ff0000"></SPAN><SPAN style="COLOR: #0000ff">/&gt;</SPAN> 
<SPAN style="COLOR: #ff0000">&amp;nbsp;</SPAN> <SPAN 
style="COLOR: #0000ff">&lt;</SPAN> <SPAN style="COLOR: #800000">s:submit 
</SPAN><SPAN style="COLOR: #0000ff">/&gt;</SPAN> <SPAN 
style="COLOR: #000000"><BR>&nbsp; &nbsp; </SPAN><SPAN 
style="COLOR: #0000ff">&lt;/</SPAN> <SPAN style="COLOR: #800000">s:form</SPAN> 
<SPAN style="COLOR: #0000ff">&gt;</SPAN> <SPAN style="COLOR: #000000">&nbsp; 
&nbsp;<BR>&nbsp; &nbsp; </SPAN><SPAN style="COLOR: #0000ff">&lt;</SPAN> <SPAN 
style="COLOR: #800000">h2</SPAN> <SPAN style="COLOR: #0000ff">&gt;&lt;</SPAN> 
<SPAN style="COLOR: #800000">s:property </SPAN><SPAN 
style="COLOR: #ff0000">value</SPAN> <SPAN style="COLOR: #0000ff">="msg"</SPAN> 
<SPAN style="COLOR: #ff0000"></SPAN><SPAN 
style="COLOR: #0000ff">/&gt;&lt;/</SPAN> <SPAN style="COLOR: #800000">h2</SPAN> 
<SPAN style="COLOR: #0000ff">&gt;</SPAN> <SPAN 
style="COLOR: #000000"><BR></SPAN><SPAN style="COLOR: #0000ff">&lt;/</SPAN> 
<SPAN style="COLOR: #800000">body</SPAN> <SPAN 
style="COLOR: #0000ff">&gt;</SPAN> <SPAN style="COLOR: #000000"><BR></SPAN><SPAN 
style="COLOR: #0000ff">&lt;/</SPAN> <SPAN style="COLOR: #800000">html</SPAN> 
<SPAN style="COLOR: #0000ff">&gt;</SPAN> </DIV>
<P>再修改LocaleConverter.java文件，将内容改为：</P>
<DIV 
style="BORDER-RIGHT: #cccccc 1px solid; PADDING-RIGHT: 5px; BORDER-TOP: #cccccc 1px solid; PADDING-LEFT: 4px; FONT-SIZE: 13px; PADDING-BOTTOM: 4px; BORDER-LEFT: #cccccc 1px solid; WIDTH: 98%; WORD-BREAK: break-all; PADDING-TOP: 4px; BORDER-BOTTOM: #cccccc 1px solid; BACKGROUND-COLOR: #eeeeee"><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/None.gif" 
align=top> <SPAN style="COLOR: #0000ff">package</SPAN> <SPAN 
style="COLOR: #000000">tutorial;<BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/None.gif" 
align=top><BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/None.gif" 
align=top></SPAN> <SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.util.Locale;<BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/None.gif" 
align=top></SPAN> <SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.util.Map;<BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/None.gif" 
align=top></SPAN> <SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.util.regex.Pattern;<BR><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/None.gif" 
align=top><BR><IMG id=Codehighlighter1_162_627_Open_Image 
onclick="this.style.display='none'; Codehighlighter1_162_627_Open_Text.style.display='none'; Codehighlighter1_162_627_Closed_Image.style.display='inline'; Codehighlighter1_162_627_Closed_Text.style.display='inline';" 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/ExpandedBlockStart.gif" 
align=top><IMG id=Codehighlighter1_162_627_Closed_Image style="DISPLAY: none" 
onclick="this.style.display='none'; Codehighlighter1_162_627_Closed_Text.style.display='none'; Codehighlighter1_162_627_Open_Image.style.display='inline'; Codehighlighter1_162_627_Open_Text.style.display='inline';" 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/ContractedBlock.gif" 
align=top></SPAN> <SPAN style="COLOR: #0000ff">public</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">class</SPAN> <SPAN 
style="COLOR: #000000">LocaleConverter </SPAN><SPAN 
style="COLOR: #0000ff">extends</SPAN> <SPAN 
style="COLOR: #000000">ognl.DefaultTypeConverter </SPAN><SPAN 
id=Codehighlighter1_162_627_Closed_Text 
style="BORDER-RIGHT: #808080 1px solid; BORDER-TOP: #808080 1px solid; DISPLAY: none; BORDER-LEFT: #808080 1px solid; BORDER-BOTTOM: #808080 1px solid; BACKGROUND-COLOR: #ffffff"><IMG 
src="在Struts 2_0中实现表单数据校验（Validation） - Max On Java - BlogJava.files/dot.gif"> 
</SPAN><SPAN id=Codehighlighter1_162_627_Open_Text><SPAN