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最近剛做完一個(gè)項(xiàng)目,，用Struts1.1做的,。從不懂，到熟練使用,，都靠參考CSDN的一些文檔,。但是文章上講的并不一定適合自己，所以我把我自己做的一些東西拿上來(lái)給大家看看,，互相交流一下,。如果您有跟好的方法，可以和我聯(lián)系,。
MSN:whw_dream (AT) hotmail.com
Struts的文件上傳
本文用的是Struts1.1的org.apache.struts.upload.FormFile類,。很方便，不用自己寫,。也不用寫一個(gè)jsp調(diào)用jspsmartupload就可以搞定,。
選擇上傳文件頁(yè)面：selfile.jsp
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<html:html>
<html:form action="/uploadsAction.do" enctype="multipart/form-data">
<html:file property="theFile"/>
<html:submit/>
</html:form>
</html:html>
UpLoadAction.java
import java.io.*;
import javax.servlet.http.*;
import org.apache.struts.action.*;
import org.apache.struts.upload.FormFile;
/**
* <p>Title:UpLoadAction</p>
* <p>Description: QRRSMMS </p>
* <p>Copyright: Copyright (c) 2004 jiahansoft</p>
* <p>Company: jiahansoft</p>
* @author wanghw
* @version 1.0
*/
public class UpLoadAction extends Action {
public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws Exception {
if (form instanceof uploadsForm) {//如果form是uploadsForm
String encoding = request.getCharacterEncoding();
if ((encoding != null) && (encoding.equalsIgnoreCase("utf-8")))
{
response.setContentType("text/html; charset=gb2312");//如果沒(méi)有指定編碼,，編碼格式為gb2312
}
UpLoadForm theForm = (UpLoadForm ) form;
FormFile file = theForm.getTheFile();//取得上傳的文件
try {
InputStream stream = file.getInputStream();//把文件讀入
String filePath = request.getRealPath("/");//取當(dāng)前系統(tǒng)路徑
ByteArrayOutputStream baos = new ByteArrayOutputStream();
OutputStream bos = new FileOutputStream(filePath + "/" +
file.getFileName());//建立一個(gè)上傳文件的輸出流
//System.out.println(filePath+"/"+file.getFileName());
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ( (bytesRead = stream.read(buffer, 0, 8192)) != -1) {
bos.write(buffer, 0, bytesRead);//將文件寫入服務(wù)器
}
bos.close();
stream.close();
}catch(Exception e){
System.err.print(e);
}
//request.setAttribute("dat",file.getFileName());
return mapping.findForward("display");
}
return null;
}
}
UpLoadForm.java
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.*;
import org.apache.struts.upload.*;
/**
* <p>Title:UpLoadForm</p>
* <p>Description: QRRSMMS </p>
* <p>Copyright: Copyright (c) 2004 jiahansoft</p>
* <p>Company: jiahansoft</p>
* @author wanghw
* @version 1.0
*/
public class UpLoadForm extends ActionForm {
public static final String ERROR_PROPERTY_MAX_LENGTH_EXCEEDED = "org.apache.struts.webapp.upload.MaxLengthExceeded";
protected FormFile theFile;
public FormFile getTheFile() {
return theFile;
}
public void setTheFile(FormFile theFile) {
this.theFile = theFile;
}
public ActionErrors validate(ActionMapping mapping, HttpServletRequest request)
{
ActionErrors errors = null;
//has the maximum length been exceeded?
Boolean maxLengthExceeded = (Boolean)
request.getAttribute(MultipartRequestHandler.ATTRIBUTE_MAX_LENGTH_EXCEEDED);
if ((maxLengthExceeded != null) && (maxLengthExceeded.booleanValue()))
{
errors = new ActionErrors();
errors.add(ERROR_PROPERTY_MAX_LENGTH_EXCEEDED, new ActionError("maxLengthExceeded"));
}
return errors;
}
}
//這是相對(duì)應(yīng)的form，還有其他屬性可以設(shè)置,，具體可以參考struts的上傳例子,。
struts-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta./struts/dtds/struts-config_1_1.dtd">
<struts-config>
<form-beans>
<form-bean name="uploadsForm" type="UpLoadForm" />
</form-beans>
<action-mappings>
<action name="uploadsForm" type="UpLoadAction" path="/uploadsAction">
<forward name="display" path="/display.jsp" />
</action>
</action-mappings>
</struts-config>
<!--display.jsp就是隨便寫一個(gè)成功頁(yè)-->
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