JSP頁面
<%@ page language="java" pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
<html>
<head>
<title>JSP for FileForm form</title>
</head>
<body>
<html:form action="/file"
enctype="multipart/form-data">
上傳 :
<html:file property="myFile"/><html:errors name="fileError"/>
<html:submit value="上傳"/>
</html:form>
<html:img src="image/dd.jpg"/>
</body>
</html>
/*******************************************************************************/
對應(yīng)的ActionForm
package wsq.struts.form;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
/**
* MyEclipse Struts
* Creation date: 09-17-2007
*
* @author 王世清
**/
public class FileForm extends ActionForm {
private static final long serialVersionUID = 1L;
private FormFile myFile;
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) {
return null;
}
public void reset(ActionMapping mapping, HttpServletRequest request) {
}
public static long getSerialVersionUID() {
return serialVersionUID;
}
public FormFile getMyFile() {
return myFile;
}
public void setMyFile(FormFile myFile) {
this.myFile = myFile;
}
}
/**********************************************************/
對應(yīng)的Action
package wsq.struts.action;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;
import wsq.struts.form.FileForm;
public class FileAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws IOException{
FileForm fileForm = (FileForm) form;
FormFile file = fileForm.getMyFile();
if (file == null)
{
return mapping.findForward("error");
}
String dir=servlet.getServletContext().getRealPath("/image");//首先在你的項目下新建個（在 webroot下）image文件夾
/***注釋的是按孫衛(wèi)琴書上來的*************/
// InputStream in=file.getInputStream();
// OutputStream out=new FileOutputStream(dir+"/"+file.getFileName());
// int bytesRead=0;
// byte [] buffer=new byte[8000];
// while((bytesRead=in.read(buffer, 0, 8000))!=-1)
// {
// out.write(buffer,0,bytesRead);
//
// }
FileOutputStream out = new FileOutputStream(dir+"/" + file.getFileName());
out.write(file.getFileData());
out.close();
//in.close();
file.destroy();
System.out.println(file.getFileName()+"上傳文件的名字");
return null;
}
}
/*************************************/
大家還要記得傳圖片是會出現(xiàn)文件名亂碼 解決的辦法是寫個過濾器
要是不想寫可以在
你 的TOMCATE目錄下的\webapps\examples\WEB-INF\classes\filters\SetCharacterEncodingFilter.java
TOMCAT也為你寫好一個現(xiàn)成的 拿來就可以用了
這兩天嘗試 用AJAX來寫一個文件上傳的 呵呵。。。
posted on 2007-09-20 12:06
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