struts2文件上传
1.环境要求
commons-fileupload-xxx.jar
commons-io-xxx.jar
2.准备jsp页面
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="/struts-tags" prefix="s" %>
<!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=UTF-8">
<title>Insert title here</title>
</head>
<body>
<s:form action="Fileupload" method="" enctype="multipart/form-data">
<s:textfield name="title" label="用户名"/><br>
<s:file name="upload" label="上传文件"/><br>
<s:submit name="submit" value="上传" />
</s:form>
</body>
</html>
3.Action页面
package com.icss.action.upload;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
/**
***************************
*@类名 UploadAction.java
*@作者 jatpeo
*@日期 2017年11月7日 下午2:42:32
*@版本 v1.0
*@描述 文件上传
***************************
*/
public class UploadAction extends ActionSupport{
//1.普通字段name属性名
private String title;
private File upload;//file 控件名 它要和表单name属性和action属性名要一致
//2.控件名+ContentType
private String uploadContentType;//上传文件的类型
//3.控件名+FileName
private String uploadFileName;//上传文件的名称
//4.上传文件的路径 upload
private String savePath; //获取完整的路径
//上传
public String execute() throws Exception {
byte[] buffer = new byte[2048];//缓冲区
//输入流
FileInputStream fis = new FileInputStream(upload);
//输出流 \ \
FileOutputStream fos = new FileOutputStream(getSavePath()+"\\"+uploadFileName);
int len=fis.read(buffer);
while(len>0){
fos.write(buffer, 0, len);
len=fis.read(buffer);
}
fos.flush();
fos.close();
fis.close();
return "success";
}
//生成get和set方法
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public File getUpload() {
return upload;
}
public void setUpload(File upload) {
this.upload = upload;
}
public String getUploadContentType() {
return uploadContentType;
}
public void setUploadContentType(String uploadContentType) {
this.uploadContentType = uploadContentType;
}
public String getUploadFileName() {
return uploadFileName;
}
public void setUploadFileName(String uploadFileName) {
this.uploadFileName = uploadFileName;
}
public String getSavePath() {
return ServletActionContext.getServletContext().getRealPath(savePath);
}
public void setSavePath(String savePath) {
this.savePath = savePath;
}
}
4.配置struts.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.devMode" value="false"/>
<constant name="struts.enable.DynamicMethodInvocation" value="true"/>
<constant name="struts.configuration.xml.reload" value="true"/>
<package name="upload" namespace="/" extends="struts-default">
<!-- 单文件上传 -->
<action name="Fileupload" class="com.icss.action.upload.UploadAction">
</package>
</struts>
