Struts2 + MySQL 实现文件上传

Posted 2021-01-20 Roni

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了Struts2 + MySQL 实现文件上传相关的知识，希望对你有一定的参考价值。

代码结构：

package com.action;
 
import java.util.List;
import java.util.Map;
 
import com.bean.Pager;
import com.bean.UserInfo;
import com.dao.LendDao;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

 
public class LendAction extends ActionSupport{
        private int pageNow=1;           //初始页为第一页
        private int pageSize=3;             //每页数据为4条，可调节
        
        public String execute() throws Exception{
            LendDao dao = new LendDao();
            
            List list = dao.selectLend(pageNow, pageSize);
            Pager page = new Pager(pageNow, dao.selectLendSize());
            
            Map session = ActionContext.getContext().getSession();
            session.put("userinfo", list);
            session.put("pageinfo", page);
            return SUCCESS;
        }
 
        public int getPageNow() {
            return pageNow;
        }
 
        public void setPageNow(int pageNow) {
            this.pageNow = pageNow;
        }
 
        public int getPageSize() {
            return pageSize;
        }
 
        public void setPageSize(int pageSize) {
            this.pageSize = pageSize;
        }
        
}

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@taglib prefix="s" uri="/struts-tags"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP \'index.jsp\' starting page</title>
  </head>
<body>
    <table border="1" width="599">
        <tr>
            <td valign="top"><jsp:include page="lenduserinfo.jsp"></jsp:include></td>
        </tr>
    
        <tr bgcolor="#E9EDF5" class="font1">
            <td align="right">
                <s:set name="page" value="#session.pageinfo"/>
                    <a href="lendaction?pageNow=1">首页</a>
                    
                    <s:if test="#page.hasPre">
                        <a href="lendaction?pageNow=<s:property value="#page.pageNow-1"/>">上一页</a>
                    </s:if>
                    <s:else>
                        <a href="lendaction?pageNow=1">上一页</a>
                    </s:else>
                    
                    <s:if test="#page.hasNext">
                        <a href="lendaction?pageNow=<s:property value="#page.pageNow+1"/>">下一页</a>
                    </s:if>
                    <s:else>
                        <a href="lendaction?pageNow=<s:property value="#page.totalPage"/>">下一页</a>
                    </s:else>
                    
                    <a href="lendaction?pageNow=<s:property value="#page.totalPage"/>">尾页</a>
            </td>
        </tr>
    </table>
  </body>

</html>

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP \'success.jsp\' starting page</title>
  </head>
  
<body>
    <table border="2">
        <tr>
            <td>userId</td>   
            <td>userName</td>        
            <td>userPassword</td>
        </tr>
           <s:iterator value="#session.userinfo" id="lend">
               <tr>
                   <td><s:property value="#lend.userId" /></td>
                   <td><s:property value="#lend.userName" /></td>
                   <td><s:property value="#lend.userPassword" /></td>
               </tr>
           </s:iterator>
    </table>
  </body>


</html>

以上是关于Struts2 + MySQL 实现文件上传的主要内容，如果未能解决你的问题，请参考以下文章

struts2实现文件上传下载

Struts2学习—文件上传和下载

Struts2(八.添加用户多张照片实现文件上传功能)

用struts2实现文件的上传下载

jquery+struts2 上传文件

文件上传(多文件上传)/下载