struts2.1文件上传

package action;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import java.util.ArrayList;import java.util.List;import java.util.UUID;import org.apache.commons.io.FileUtils;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionContext;import com.opensymphony.xwork2.ActionSupport;public class UploadFile extends ActionSupport {private List<File> file;private List<String> fileFileName;private List<String> fileContentType;private List<String> dirpath;public List<String> getDirpath() {return dirpath;}public void setDirpath(List<String> dirpath) {this.dirpath = dirpath;}public List<File> getFile() {return file;}public void setFile(List<File> file) {this.file = file;}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;}@Overridepublic String execute() throws Exception {// TODO Auto-generated method stubdirpath =new ArrayList();List list =new ArrayList();String path = ServletActionContext.getRequest().getRealPath("/upload/");for(int i=0;i<file.size();i++){dirpath.add(path+fileFileName.get(i));//文件上传String randname = this.FileName(fileFileName.get(i));list.add(randname);FileUtils.copyFile(file.get(i), new File(path,randname));System.out.println(fileContentType.get(i));}//for(int i=0;i<file.size();i++)//{//dirpath.add(path+fileFileName.get(i));////文件上传通过stream流//InputStream is = new FileInputStream(file.get(i));//OutputStream os = new FileOutputStream(new File(path,this.FileName(fileFileName.get(i))));//byte[] buffer = new byte[400];//while(is.read(buffer)>0)//{//os.write(buffer, 0, buffer.length);//}//}ActionContext.getContext().put("list", list);ActionContext.getContext().put("type", fileContentType);return SUCCESS;}public String FileName(String fname){String ext = fname.substring(fname.lastIndexOf("."));String uuid = UUID.randomUUID().toString();return uuid+ext;}}