文件上传

在stucts中上传文件步骤：

第一步：在WEB-INF/lib下加入commons-fileupload-1.2.1.jar、commons-io-1.3.2.jar。这两个文件可以从http://commons.apache.org/下载。

第二步：编写提交表单：index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

第三步：编写Action
public class uplodeFile {
private File uploadImage;//这个名字和相同
private String uplodeFileContentType;//同上-ContentType这必须这么写
private String uploadImageFileName;//同上-FileName;这必须这么写
private String path;

public String getPath() {
return path;
}
public File getUploadImage() {
return uploadImage;
}
public void setUploadImage(File uploadImage) {
this.uploadImage = uploadImage;
}
public String getUplodeFileContentType() {
return uplodeFileContentType;
}
public void setUplodeFileContentType(String uplodeFileContentType) {
this.uplodeFileContentType = uplodeFileContentType;
}
public String getUploadImageFileName() {
return uploadImageFileName;
}
public void setUploadImageFileName(String uploadImageFileName) {
this.uploadImageFileName = uploadImageFileName;
}

public String upload() throws Exception
{
String realpath = ServletActionContext.getServletContext().getRealPath("/images");
File file = new File(realpath);
if(!file.exists()) file.mkdirs();
path=file.getAbsolutePath();
FileUtils.copyFile(uploadImage, new File(file, uploadImageFileName));
return "success";
}
}
第四步：配置struts.xml文件

/WEB-INF/page/success.jsp


第五步：部署

第六步：访问：http://localhost:8080/Structs2/index.jsp
注意：index.jsp在WebRoot目录下