文件上传
fileload.jsp<%@ page language="java" contentType="text/html; charset=GBK"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>文件上传表单</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
</head>
<body>
<html:form action="/upload" enctype="multipart/form-data">
上传文件：<html:file property="uploadFile"></html:file>
<html:submit property="提交"></html:submit>
</html:form>
</body>
</html>
form：
package net.nbol.struts.form;
import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile;
public class FileUploadForm extends ActionForm {
private FormFile uploadFile;
public FormFile getUploadFile() {
return uploadFile;
}
public void setUploadFile(FormFile uploadFile) {
this.uploadFile = uploadFile;
}
}
Action ：
package net.nbol.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 net.nbol.struts.form.FileUploadForm;
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;
public class FileUploadAction extends Action {
/**
* 上传的文件保存在服务器的路径
*/
private static String UPLOAD_FILE_PATH = "F:/skh/pic/";
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws Exception {
FileUploadForm uploadForm = (FileUploadForm)form;
//得到上传的文件
FormFile uploadFile = uploadForm.getUploadFile();
//得到文件名
String fileName = uploadFile.getFileName();
//得到文件大小
int fileSize = uploadFile.getFileSize();
System.out.println("FileName = " + fileName);
System.out.println("FileSize=" + fileSize);
boolean result = true;
try{
//得到文件的输入流
InputStream is = uploadFile.getInputStream();
//上传文件
uploadFile(fileName,is);
}catch(IOException ex){
ex.printStackTrace();
//假如上传文件失败，设置一个失败的标记位
result = false;
}
if(result){
return mapping.findForward("success");
} else {
return mapping.findForward("fail");
}
}
/**
* 上传文件
* @param fileName
* @param is
* @throws IOException
*/
private void uploadFile(String fileName,InputStream is) throws IOException{
OutputStream os = new FileOutputStream(UPLOAD_FILE_PATH + fileName);
//8k缓存数据
byte[] buffer = new byte;
//设置读进缓存的字节数
int len;
while((len=is.read(buffer))!=-1){
//将缓存数据写入磁盘
os.write(buffer,0,len);
}
//关闭输出流
os.close();
//关闭输入流
is.close();
}
}
Struts-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">
<struts-config>
<data-sources />
<form-beans >
<form-bean name="fileUploadForm" type="net.nbol.struts.form.FileUploadForm"></form-bean>
</form-beans>
<global-exceptions />
<global-forwards />
<action-mappings >
<action path="/upload" name="fileUploadForm" scope="request" type="net.nbol.struts.action.FileUploadAction">
<forward name="success" path="/success.jsp" redirect="true"></forward>
<forward name="fail" path="/fail.jsp" redirect="true"></forward>
</action>
</action-mappings>
<message-resources parameter="net.nbol.struts.ApplicationResources" />
</struts-config>
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