struts1.2實現圖片上傳

時間 2019-12-07

原文原文鏈接

Action：

public class FileUploadAction extends Action {html

    /*
    * Generated Methods
    */

    /**
    * Method execute
    * @param mapping
    * @param form
    * @param request
    * @param response
    * @return ActionForward
    */
    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) {

            FileUploadForm fileUploadForm = (FileUploadForm) form;// TODO Auto-generated method stub
                // 取得文件對象
            FormFile file = fileUploadForm.getFile();
               //經過時間和file的文件後綴,拼寫出文件名
               java.util.Date date= new java.util.Date();

            String fileName =date.getTime()
            + file.getFileName().substring( file.getFileName().lastIndexOf("."));
               // 取得絕對路徑

            System.out.println(fileName);

            String pathName = this.getServlet().getServletContext()
                 .getRealPath("/")
                 + "/upload/" + fileName;
               //將拼寫好的文件名保存到對象中
            System.out.println(pathName);


            try {
                 // 定義輸出流
                 FileOutputStream os = new FileOutputStream(new File(pathName));
                 // 開始寫文件
                 os.write(file.getFileData());
                 // 關閉流
                 os.close();

                 return mapping.findForward("suc");

                } catch (FileNotFoundException e1) {
                 // TODO Auto-generated catch block
                 e1.printStackTrace();
                 return mapping.findForward("fal");

                } catch (Exception ex) {
                 // TODO Auto-generated catch block
                 ex.printStackTrace();
                 return mapping.findForward("fal");
                }
        }

}java

Form：

/*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
package com.j2ee.onlineAuction.struts.form;

import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;

import org.apache.struts.upload.FormFile;

/**
* MyEclipse Struts
* Creation date: 06-12-2011
*
* XDoclet definition:
* @struts.form name="fileUploadForm"
*/
public class FileUploadForm extends ActionForm {
    /*
    * Generated fields
    */

    /** file property */
    private FormFile file;

    /*
    * Generated Methods
    */

    /**
    * Method validate
    * @param mapping
    * @param request
    * @return ActionErrors
    */
    public ActionErrors validate(ActionMapping mapping,
            HttpServletRequest request) {
        // TODO Auto-generated method stub
        return null;
    }

    /**
    * Method reset
    * @param mapping
    * @param request
    */
    public void reset(ActionMapping mapping, HttpServletRequest request) {
        // TODO Auto-generated method stub
    }

    /**
    * Returns the file.
    * @return FormFile
    */
    public FormFile getFile() {
        return file;
    }

    /**
    * Set the file.
    * @param file The file to set
    */
    public void setFile(FormFile file) {
        this.file = file;
    }

}apache

JSP：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>

<html>
    <head>
        <title>JSP for FileUploadForm form</title>
    </head>
    <body>
        <html:form action="/fileUpload" enctype="multipart/form-data">             file : <html:file property="file"/><html:errors property="file"/><br/>             <html:submit/><html:cancel/>         </html:form>     </body> </html>

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