Struts2实现文件上传多个实例...

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Struts2

Struts JSP Apache XML HTML

1.UploadAction.java

package lee;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class UploadAction extends ActionSupport {
   private String title;
   private File[] upload;
   private String[] uploadContentType;
   private String[] uploadFileName;
   //接爱依赖注入的属性
   private String savePath;

public String getSavePath() {
return ServletActionContext.getRequest().getRealPath(savePath);
}
//接受依赖注入的方法
public void setSavePath(String savePath) {
this.savePath = savePath;
}
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 execute()throws Exception{
File[] files=this.getUpload();
for(int i=0;i<files.length;i++){
//以服务器的文件保存地址和原文件名建立上传文件输出流
FileOutputStream fos=new FileOutputStream(this.getSavePath()+"\\"+this.getUploadFileName()[i]);
FileInputStream fis=new FileInputStream(this.getUploadContentType()[i]);
byte[] buffer=new byte[1024];
int len=0;
while((len=fis.read(buffer))>0){
fos.write(buffer,0,len);
}
}
return SUCCESS;
}

}

2.struts.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

<package name="upload" extends="struts-default">

  <action name="upload" class="lee.UploadAction">
  <interceptor-ref name="fileUpload">
  <param name="allowedTypes">image/bmp,image/png,image/gif,image/jpeg,image/jpg</param>
  </interceptor-ref>
  <interceptor-ref name="defaultStack"></interceptor-ref>
     <param name="savePath">/upload</param>
     <result name="input">/upload.jsp</result>
     <result>/succ.jsp</result>
  </action>
</package>
</struts>

3.upload.jsp

<%@ page language="java" contentType="text/html; charset=GBK"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK" />
<title>利用拦截器实现文件过滤</title>
</head>
<body>
${requestScope.typeError}
<form action="upload.action" method="post" enctype="multipart/form-data">
文件标题：<input type="text" name="title" /><br>
选择第一个文件：<input type="file" name="upload" /><br>
选择第二个文件：<input type="file" name="upload" /><br>
选择第三个文件：<input type="file" name="upload" /><br>
<input value="上传" type="submit" />
</form>
</body>
</html>

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struts2 下载 | struts2代码实现过滤

2008-10-28 10:33
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