Struts2实现文件上传功能实例解析

 struts2
 org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
 
 
 struts2
 *.action
 

 
  
  
  

  ${result}
 
 

 
上传失败
 
 

<%@ taglib uri="/struts-tags" prefix="s"%>

package com.yf.action;
import java.io.File;
import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class UploadAction extends ActionSupport{
 private File upload;
 private String uploadContentType;
 private String uploadFileName;
 private String result;
 public File getUoload() {
  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 getResult() {
  return result;
 }
 public void setResult(String result) {
  this.result = result;
 }
 @Override
 public String execute() throws Exception {
  String path = ServletActionContext.getServletContext().getRealPath("/images");
  File file = new File(path);
  if(!file.exists()){
   file.mkdir();
  }
  System.out.println(upload);
  FileUtils.copyFile(upload, new File(file,uploadFileName));
  result = "上传成功";
  return SUCCESS;
 }
}

<&＃63;xml version="1.0" encoding="UTF-8" &＃63;>


 
 
 
 
 
  
  /index.jsp
  /error.jsp
  
  
   image/bmp,image/x-png,image/gif,image/jpeg
   2M
  
  
  
 
 

struts.messages.error.file.too/large=\u4E0A\u4F20\u6587\u4EF6\u592A\u5927\u4E86\uFF01
struts.messages.error.content.type.not.allowed=\u4E0A\u4F20\u6587\u4EF6\u7C7B\u578B\u4E0D\u7B26\uFF01