Struts2.0做的上传下载

package com.action; import java.io.*; import java.util.List; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; public class UploadAction extends ActionSupport { private List<String> fileFileName; private List<String> fileContentType; private List<File> file; @Override public String execute() throws Exception { if(file == null){ return SUCCESS; } writeToDisk(); return SUCCESS; } public void writeToDisk(){ //上传的路径 String path = ServletActionContext.getRequest().getRealPath("/upload"); System.out.println(path); int i = 0; for(File temp : file){ try { InputStream in = new FileInputStream(temp); OutputStream out = new FileOutputStream(new File(path,fileFileName.get(i))); byte[] buffer = new byte[1024]; while(in.read(buffer) > 0){ out.write(buffer); } out.flush(); out.close(); in.close(); i++; } catch (Exception e) { e.printStackTrace(); } } } public List<String> getFileFileName() { return fileFileName; } public void setFileFileName(List<String> fileFileName) { this.fileFileName = fileFileName; } public List<String> getFileContentType() { return fileContentType; } public void setFileContentType(List<String> fileContentType) { this.fileContentType = fileContentType; } public List<File> getFile() { return file; } public void setFile(List<File> file) { this.file = file; } }