📄 在struts 2中实现文件上传 - max on java - blogjava.htm

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<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">s:form </SPAN><SPAN style="COLOR: #ff0000">action</SPAN> 
<SPAN style="COLOR: #0000ff">="fileUpload"</SPAN> <SPAN 
style="COLOR: #ff0000">method</SPAN> <SPAN style="COLOR: #0000ff">="POST"</SPAN> 
<SPAN style="COLOR: #ff0000">enctype</SPAN> <SPAN 
style="COLOR: #0000ff">="multipart/form-data"</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:file </SPAN><SPAN style="COLOR: #ff0000">name</SPAN> 
<SPAN style="COLOR: #0000ff">="myFile"</SPAN> <SPAN 
style="COLOR: #ff0000">label</SPAN> <SPAN style="COLOR: #0000ff">="Image 
File"</SPAN> <SPAN style="COLOR: #ff0000"></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:textfield </SPAN><SPAN 
style="COLOR: #ff0000">name</SPAN> <SPAN 
style="COLOR: #0000ff">="caption"</SPAN> <SPAN 
style="COLOR: #ff0000">label</SPAN> <SPAN 
style="COLOR: #0000ff">="Caption"</SPAN> <SPAN 
style="COLOR: #ff0000"></SPAN><SPAN style="COLOR: #0000ff">/&gt;</SPAN> <SPAN 
style="COLOR: #000000">&nbsp; &nbsp; &nbsp; &nbsp;<BR>&nbsp; &nbsp; &nbsp; 
&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"><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><SPAN 
style="FONT-SIZE: smaller; FONT-STYLE: italic">清单2 FileUpload.jsp</SPAN> 
<P>在FileUpload.jsp中，先将表单的提交方式设为POST，然后将enctype设为multipart/form-data，这并没有什么特别之处。接下来，&lt;s:file/&gt;标志将文件上传控件绑定到Action的myFile属性。</P>
<P>其次是FileUploadAction.java代码：</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中实现文件上传 - 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中实现文件上传 - Max On Java - BlogJava.files/None.gif" 
align=top><BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.io.BufferedInputStream;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.io.BufferedOutputStream;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.io.File;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.io.FileInputStream;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.io.FileOutputStream;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.io.InputStream;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.io.OutputStream;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">java.util.Date;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" 
align=top><BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">org.apache.struts2.ServletActionContext;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" 
align=top><BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" align=top></SPAN> 
<SPAN style="COLOR: #0000ff">import</SPAN> <SPAN 
style="COLOR: #000000">com.opensymphony.xwork2.ActionSupport;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/None.gif" 
align=top><BR><IMG id=Codehighlighter1_407_2048_Open_Image 
onclick="this.style.display='none'; Codehighlighter1_407_2048_Open_Text.style.display='none'; Codehighlighter1_407_2048_Closed_Image.style.display='inline'; Codehighlighter1_407_2048_Closed_Text.style.display='inline';" 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/ExpandedBlockStart.gif" 
align=top><IMG id=Codehighlighter1_407_2048_Closed_Image style="DISPLAY: none" 
onclick="this.style.display='none'; Codehighlighter1_407_2048_Closed_Text.style.display='none'; Codehighlighter1_407_2048_Open_Image.style.display='inline'; Codehighlighter1_407_2048_Open_Text.style.display='inline';" 
src="在Struts 2中实现文件上传 - 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">FileUploadAction </SPAN><SPAN 
style="COLOR: #0000ff">extends</SPAN> <SPAN style="COLOR: #000000">ActionSupport 
</SPAN><SPAN id=Codehighlighter1_407_2048_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中实现文件上传 - Max On Java - BlogJava.files/dot.gif"> </SPAN><SPAN 
id=Codehighlighter1_407_2048_Open_Text><SPAN style="COLOR: #000000">{<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">private</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">static</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">final</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">long</SPAN> <SPAN 
style="COLOR: #000000">serialVersionUID </SPAN><SPAN 
style="COLOR: #000000">=</SPAN> <SPAN style="COLOR: #000000"></SPAN><SPAN 
style="COLOR: #000000">572146812454l</SPAN> <SPAN 
style="COLOR: #000000">;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">private</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">static</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">final</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">int</SPAN> <SPAN 
style="COLOR: #000000">BUFFER_SIZE </SPAN><SPAN style="COLOR: #000000">=</SPAN> 
<SPAN style="COLOR: #000000"></SPAN><SPAN style="COLOR: #000000">16</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #000000">*</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #000000">1024</SPAN> <SPAN 
style="COLOR: #000000">;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">private</SPAN> <SPAN 
style="COLOR: #000000">File myFile;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">private</SPAN> <SPAN 
style="COLOR: #000000">String contentType;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">private</SPAN> <SPAN 
style="COLOR: #000000">String fileName;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">private</SPAN> <SPAN 
style="COLOR: #000000">String imageFileName;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">private</SPAN> <SPAN 
style="COLOR: #000000">String caption;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;<BR><IMG id=Codehighlighter1_712_749_Open_Image 
onclick="this.style.display='none'; Codehighlighter1_712_749_Open_Text.style.display='none'; Codehighlighter1_712_749_Closed_Image.style.display='inline'; Codehighlighter1_712_749_Closed_Text.style.display='inline';" 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/ExpandedSubBlockStart.gif" 
align=top><IMG id=Codehighlighter1_712_749_Closed_Image style="DISPLAY: none" 
onclick="this.style.display='none'; Codehighlighter1_712_749_Closed_Text.style.display='none'; Codehighlighter1_712_749_Open_Image.style.display='inline'; Codehighlighter1_712_749_Open_Text.style.display='inline';" 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/ContractedSubBlock.gif" 
align=top> &nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">public</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">void</SPAN> <SPAN 
style="COLOR: #000000">setMyFileContentType(String contentType) </SPAN><SPAN 
id=Codehighlighter1_712_749_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中实现文件上传 - Max On Java - BlogJava.files/dot.gif"> </SPAN><SPAN 
id=Codehighlighter1_712_749_Open_Text><SPAN style="COLOR: #000000">{<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp; &nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">this</SPAN> 
<SPAN style="COLOR: #000000">.contentType </SPAN><SPAN 
style="COLOR: #000000">=</SPAN> <SPAN 
style="COLOR: #000000">contentType;<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/ExpandedSubBlockEnd.gif" 
align=top> &nbsp; &nbsp;}</SPAN> </SPAN><SPAN style="COLOR: #000000"><BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp;<BR><IMG id=Codehighlighter1_801_832_Open_Image 
onclick="this.style.display='none'; Codehighlighter1_801_832_Open_Text.style.display='none'; Codehighlighter1_801_832_Closed_Image.style.display='inline'; Codehighlighter1_801_832_Closed_Text.style.display='inline';" 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/ExpandedSubBlockStart.gif" 
align=top><IMG id=Codehighlighter1_801_832_Closed_Image style="DISPLAY: none" 
onclick="this.style.display='none'; Codehighlighter1_801_832_Closed_Text.style.display='none'; Codehighlighter1_801_832_Open_Image.style.display='inline'; Codehighlighter1_801_832_Open_Text.style.display='inline';" 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/ContractedSubBlock.gif" 
align=top> &nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">public</SPAN> <SPAN 
style="COLOR: #000000"></SPAN><SPAN style="COLOR: #0000ff">void</SPAN> <SPAN 
style="COLOR: #000000">setMyFileFileName(String fileName) </SPAN><SPAN 
id=Codehighlighter1_801_832_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中实现文件上传 - Max On Java - BlogJava.files/dot.gif"> </SPAN><SPAN 
id=Codehighlighter1_801_832_Open_Text><SPAN style="COLOR: #000000">{<BR><IMG 
src="在Struts 2中实现文件上传 - Max On Java - BlogJava.files/InBlock.gif" align=top> 
&nbsp; &nbsp; &nbsp; &nbsp;</SPAN> <SPAN style="COLOR: #0000ff">this</SPAN>
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