struts2中实现多个文件同时上传代码

<form action="upload.action" name="uploadForm" method="post" enctype="multipart/form-data">
文件标题：<input type="text" name="title"/><br/>
选择文件-：<input type="file" name="upload"/><br/>
选择文件二：<input type="file" name="upload"/><br/>
选择文件三：<input type="file" name="upload"/><br/>
<input type="submit" value="upload"/>

对应的Action依次遍历所有文件域，然后生成对应的输入文件流，输出文件流在指定的服务器保存路径中添加对应的输出文件流保存文件。同时动态指定服务器上文件的 保存路径。

action代码如下：

package com.inspur.action;

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

import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.ActionSupport;

public class UploadAction extends ActionSupport {
private String title;
private File[] upload;
private String[] uploadFileName;
private String[] uploadContentType;
private String 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[] getUploadFileName() {
return uploadFileName;
}
public void setUploadFileName(String[] uploadFileName) {
this.uploadFileName = uploadFileName;
}
public String[] getUploadContentType() {
return uploadContentType;
}
public void setUploadContentType(String[] uploadContentType) {
this.uploadContentType = uploadContentType;
}
public String getSavePath() {
return ServletActionContext.getRequest().getRealPath(savePath);
}
public void setSavePath(String savePath) {
this.savePath = savePath;
}
public String upload()throws Exception{
File[] files=this.getUpload();
for(int i=0;i<files.length;i++){
FileOutputStream fos=new FileOutputStream(this.getSavePath()+"\\"+this.getUploadFileName()[i]);
byte[] buffer=new byte[1024];
FileInputStream fis=new FileInputStream(files[i]);
int len=0;
while((len=fis.read(buffer))>0){
fos.write(buffer,0,len);
}
}

return SUCCESS;
}

}