java代码：
package com.struts1.form;
import org.apache.struts.action.ActionForm;
import org.apache.struts.upload.FormFile;
public class UploadFileForm extends ActionForm {
private static final long serialVersionUID = 1L;
private FormFile formFile;
public FormFile getFormFile() {
return formFile;
}
public void setFormFile(FormFile formFile) {
this.formFile = formFile;
}
}
成员变量的顺序要和jsp页面上的输入框的顺序一致。
package com.struts1.action;
import java.io.FileOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.io.IOUtils;
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 com.struts1.form.UploadFileForm;
public class UploadAction extends Action {
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
UploadFileForm uploadFileForm = (UploadFileForm)form;
FormFile formFile = uploadFileForm.getFormFile();
if (formFile == null) {
return mapping.findForward("uploadError");
}
String formFileName = formFile.getFileName();
int pos = formFileName.lastIndexOf(".");
String fileName = "c:\\";
if (pos != -1) {
fileName = fileName + formFileName.substring(0, pos) + System.currentTimeMillis() + formFileName.substring(pos);
} else {
fileName = fileName + formFileName + System.currentTimeMillis();
}
FileOutputStream fos = null;
try {
fos = new FileOutputStream(fileName);
IOUtils.copy(formFile.getInputStream(), fos);
} catch (Exception e) {
e.printStackTrace();
} finally {
IOUtils.closeQuietly(formFile.getInputStream());
IOUtils.closeQuietly(fos);
}
return mapping.findForward("success");
}
}
jsp代码：
<%@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="GBK"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-nested" prefix="nested" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>Insert title here</title>
</head>
<body>
<html:form action="uploadFile.do" enctype="multipart/form-data" method="post">
<html:file property="formFile"></html:file><br>
<html:submit />
</html:form>
</body>
</html>
注意：
enctype="multipart/form-data"
method="post"
struts配置文件：
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"
"http://struts.apache.org/dtds/struts-config_1_3.dtd">
<struts-config>
<form-beans>
<form-bean name="uploadFileForm" type="com.struts1.form.UploadFileForm" />
</form-beans>
<global-exceptions>
</global-exceptions>
<global-forwards>
</global-forwards>
<action-mappings>
<action path="/uploadFile" type="com.struts1.action.UploadAction"
name="uploadFileForm" scope="request" validate="false" input="/index.jsp">
<forward name="success" path="/success.jsp" />
<forward name="uploadError" path="/uploadError.jsp" />
</action>
</action-mappings>
<controller maxFileSize="1M" />
</struts-config>
controller用来对上传的文件大小等进行控制，超过最大大小就抛异常。