Struts2 简单的上传文件并且显示图片-白红宇

Struts2 简单的上传文件并且显示图片

阅读量：6432 次

发布时间：2019-06-23

本文共 1767 字，大约阅读时间需要 5 分钟。

代码结构：

UploadAction.java

package com.action;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionSupport;public class UploadAction extends ActionSupport {    private File upload;    private String uploadFileName;    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;    }    @Override    public String execute() throws Exception {        InputStream is = new FileInputStream(getUpload());        String path = ServletActionContext.getServletContext().getRealPath("/upload");        OutputStream os = new FileOutputStream(path+"/"+this.uploadFileName);        byte buffer[] = new byte[1024];        int count = 0;        while((count=is.read(buffer))>0){            os.write(buffer,0,count);        }        os.close();        is.close();        return SUCCESS;    }}

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@taglib uri="/struts-tags" prefix="s" %>              文件上传

struts.jsp


     
         
              
                   
        
         /success.jsp

success.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%@taglib uri="/struts-tags" prefix="s" %>              文件上传                          恭喜你，上传成功！>