`

Struts1上传文件

StrutsApacheJavaServletIDEA 
阅读更多
利用Struts上传文件是非常方便的，与smartUpload相比最大的优点在于它可以上传很大的文件，测试的时候两百多兆是可以的，四百多就不行了，它应该是有个配置，不过现在还没有搞明白。先贴一贴昨天晚上写得代码吧。
首先是上传界面的代码： 
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html:html>
	<head>
		<title>Struts上传文件</title>
	</head>
	<body>
		<!-- 这里需要注意的是method一定要设成post,还要设置enctype为multipart/form-data-->
		<html:form action="upload" enctype="multipart/form-data" method="post">
			<table>
				<tr>
					<td>
						<div>
							<html:file property="file" size="30"></html:file>
						</div>
					</td>
				</tr>
				<tr>
					<td>
						<div>
							<html:submit property="upload" value="上传"></html:submit>
						</div>
					</td>
				</tr>
			</table>
		</html:form>
	</body>
</html:html>

然后是页面对应的ActionForm，你可以写成一个普通的ActionForm，也可以写成一个动态的ActionForm,这里我写成了一个普通的ActionForm
UploadForm: 
package forms;

import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile;

public class UploadForm extends ActionForm {
	private String filename;
	private FormFile file;
	public FormFile getFile() {
		return file;
	}
	public void setFile(FormFile file) {
		this.file = file;
	}
	public String getFilename() {
		return filename;
	}
	public void setFilename(String filename) {
		this.filename = filename;
	}
	
}

处理业务的Action：
UploadAction: 
package actions;

import java.io.FileOutputStream;
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 forms.UploadForm;

public class UploadAction extends Action {
	@Override
	public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) throws Exception {
		UploadForm uf=(UploadForm)form;
		String filename=uf.getFilename();
		FormFile file=uf.getFile();
		if(file!=null){
			System.out.println("我叫"+file.getFileName());
		}
		//这里需要注意的是request.getRealPath();已经废弃，可以通过
                //下面的方法来替代
		String path=req.getSession().getServletContext().getRealPath("/");
		InputStream in=file.getInputStream();
		OutputStream out=new FileOutputStream(path+"/upload/"+file.getFileName());
		int read=0;
		byte[] buffer=new byte[1024];
		while((read=in.read(buffer,0,1024))!=-1){
			out.write(buffer, 0, read);
		}
		in.close();
		out.close();
		return mapping.findForward("uploadsuc");
	}
}

Struts-config.xml的配置： 
	<form-beans>
		<form-bean name="uploadform" type="forms.UploadForm"></form-bean>
	</form-beans>
		<action path="/upload"
				type="actions.UploadAction"
				name="uploadform"
				input="/test/upload.jsp"
				scope="request"
		>
			<forward name="uploadsuc" path="/test/uploadsuc.jsp"/>
		</action>
分享到：
| Jsp上传文件
评论
1 楼 jc_dreaming 2010-04-14  
发表评论

您还没有登录,请您登录后再发表评论

相关推荐

Magicbox
Global site tag (gtag.js) - Google Analytics