SSH框架文件上传+下载

约定不等于承诺〃 2022-06-07 09:21 237阅读 0赞

sturts.xml

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd">
    <struts>
    
        <constant name="struts.devMode" value="true"/>
           
        <constant name="struts.ui.theme" value="simple"/>
        
        <constant name="struts.custom.i18n.resources" value="message" />
        
        <constant name="struts.ognl.allowStaticMethodAccess" value="true"/>
        
        <package name="common" extends="struts-default" namespace="/">
    
            
            <interceptors>
                
                <interceptor name="loginInterceptor" class="com.crm.staff.web.interceptor.LoginInterceptor"/>
                
                <interceptor-stack name="loginStack">
                    <interceptor-ref name="defaultStack">
                        
                        <param name="fileUpload.allowedExtensions">.xls,.xlsx</param>
                    </interceptor-ref>
                    <interceptor-ref name="loginInterceptor">
                        
                        <param name="excludeMethods">login</param>
                    </interceptor-ref>
                </interceptor-stack>
            </interceptors>
            
             <default-interceptor-ref name="loginStack"/>
    
             
            <global-results>
                <result name="login">WEB-INF/pages/login.jsp</result>
            </global-results>
    
            <action name="UIAction_*_*">
                <result>WEB-INF/pages/{1}/{2}.jsp</result>
    
            </action>
    
    
        </package>
    
        
        <include file="struts/struts-staff.xml"/>
        <include file="struts/struts-post.xml"/>
        <include file="struts/struts-courseType.xml"/>
        <include file="struts/struts-classes.xml"/>
    </struts>

struts-classes.xml

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN" "http://struts.apache.org/dtds/struts-2.3.dtd">
    <struts>
        <package name="cls" extends="common" namespace="/">
            <action name="classesAction_*" class="com.crm.classes.web.action.ClassesAction" method="{1}">
            
            <result name="findAll">/WEB-INF/pages/classesm/listClass.jsp</result>
            <result name="preUpload">/WEB-INF/pages/classesm/uploadClass.jsp</result>
            
            <result name="upload" type="redirectAction">classesAction_findAll</result>
            
            <result name="uploadInput">/WEB-INF/pages/error.jsp</result>
            
            <result name="download" type="stream">
                
                <param name="contentType">application/octet-stream;charset=ISO8859-1</param>
                
                <param name="contentDisposition">attachment;filename=${scheduleFileName}</param>
                
                <param name="inputName">inputStream</param>
            </result>
    
            </action>
    
    
    
    
        </package>
    </struts>

classesAction.java

package com.crm.classes.web.action;
    
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.UnsupportedEncodingException;
    import java.util.Date;
    import java.util.List;
    import java.util.UUID;
    
    import javax.servlet.Servlet;
    
    import org.apache.commons.io.FileUtils;
    import org.apache.struts2.ServletActionContext;
    import org.aspectj.util.FileUtil;
    
    import com.crm.base.action.BaseAction;
    import com.crm.classes.domain.CrmClasses;
    import com.crm.coursetype.domain.CrmCourseType;
    import com.crm.pageBean.domain.PageBean;
    import com.opensymphony.xwork2.interceptor.annotations.InputConfig;
    
    public class ClassesAction extends BaseAction<CrmClasses>{
    
        public String findAll(){
            PageBean<CrmClasses> pageBean = getClassesService().findAll(getPageNum(), getPageSize(),getModel());
            this.set("pageBean", pageBean);
            return "findAll";
        }
        //上传前操作
        public String preUpload(){
            CrmClasses findById = this.getClassesService().findById(this.getModel().getClassId());
            this.push(findById);
            return "preUpload";
        }
        //上传
        @InputConfig(resultName="uploadInput")
        public String upload() throws IOException{
            //1.文件保存到硬盘
            String parentDir = ServletActionContext.getServletContext().getRealPath("/WEB-INF/upload");
            //2.文件名随机,名称保存在数据库中
            String fileName = UUID.randomUUID().toString().replace("-", "");
            //3.保存位置
            FileUtils.copyFile(schedule, new File(parentDir, fileName));
            //更新上传文件
            getModel().setUploadTime(new Date());
            //文件名伪装
            getModel().setUploadPath("/WEB-INF/upload/"+fileName);
            //真正的文件名在数据库中
            getModel().setUploadFilename(scheduleFileName);
            //上传
            getClassesService().updateUpload(getModel());
            return "upload";
        }
    
        //下载
        public String download(){
            CrmClasses findById = getClassesService().findById(getModel().getClassId());
            inputStream = ServletActionContext.getServletContext().getResourceAsStream(findById.getUploadPath());
            try {
                scheduleFileName = new String(findById.getUploadFilename().getBytes(),"ISO8859-1");
            } catch (UnsupportedEncodingException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            return "download";
        }
    
        private InputStream inputStream;
        public void setInputStream(InputStream inputStream) {
            this.inputStream = inputStream;
        }
        public InputStream getInputStream() {
            return inputStream;
        }
    
        private File schedule; //上传内容
        private String scheduleFileName;//文件名
        public void setSchedule(File schedule) {
            this.schedule = schedule;
        }
        public String getScheduleFileName() {
            return scheduleFileName;
        }
        public void setScheduleFileName(String scheduleFileName) {
            this.scheduleFileName = scheduleFileName;
        }
    
    
    
    }

ClassesServiceImpl.java

package com.crm.classes.service.impl;
    
    import java.io.Serializable;
    import java.util.ArrayList;
    import java.util.List;
    
    import org.apache.commons.lang3.StringUtils;
    
    import com.crm.classes.dao.ClassesDao;
    import com.crm.classes.domain.CrmClasses;
    import com.crm.classes.service.ClassesService;
    import com.crm.coursetype.domain.CrmCourseType;
    import com.crm.pageBean.domain.PageBean;
    
    public class ClassesServiceImpl implements ClassesService{ 
        private ClassesDao classesDao ;
    
        @Override
        public List<CrmClasses> findAll() {
            return classesDao.findAll();
        }
    
        public void setClassesDao(ClassesDao classesDao) {
            this.classesDao = classesDao;
        }
    
        public PageBean findAll(int pageNum, int pageSize,CrmClasses classes) {
            //拼接查询条件
            StringBuilder sbCondition = new StringBuilder();
            //整合查询对象的属性
            List<Object> paramsList = new ArrayList<>();
            //条件语句
            String condition = sbCondition.toString();
            //条件参数
            Object[] params = paramsList.toArray();
    
            //得到数据总条数
            int totalRecord = classesDao.getTotalRecord(condition, params);
    
            PageBean<CrmClasses> pageBean = new PageBean<CrmClasses>(pageNum, pageSize, totalRecord);
            //分页数据
            List<CrmClasses> data = classesDao.findAll(pageBean.getStartIndex(), 
                    pageBean.getPageSize(),condition,params);
            pageBean.setData(data);
            return pageBean;
        }
    
        @Override
        public CrmClasses findById(String classesId) {
            return classesDao.findById(classesId);
        }
    
        public void updateUpload(CrmClasses classes){
            //查询并更新
            CrmClasses findClass = this.classesDao.findById(classes.getClassId());
            findClass.setUploadFilename(classes.getUploadFilename());
            findClass.setUploadTime(classes.getUploadTime());
            findClass.setUploadPath(classes.getUploadPath());
        }
    }

baseAction.java

package com.crm.base.action;
    
    import java.lang.reflect.ParameterizedType;
    import java.lang.reflect.Type;
    
    import com.crm.classes.domain.CrmClasses;
    import com.crm.classes.service.ClassesService;
    import com.crm.coursetype.service.CourseTypeService;
    import com.crm.department.service.DepartmentService;
    import com.crm.post.service.PostService;
    import com.crm.staff.service.StaffService;
    import com.opensymphony.xwork2.ActionContext;
    import com.opensymphony.xwork2.ActionSupport;
    import com.opensymphony.xwork2.ModelDriven;
    
    /** * 所有action中共有的方法 * 1.封装数据 * 2.所有service * 3.分页 * 4.值栈简化操作 * @author lanou3g * */
    public class BaseAction<T> extends ActionSupport implements ModelDriven<T>{
        private T t;//1.封装数据,实体类+service
        private StaffService staffService;
        private CourseTypeService courseTypeService ;
        private PostService postService;
        private DepartmentService departmentService;
        private ClassesService classesService ;
        //1.封装分页数据
        private int pageSize=5;
        private int pageNum=1;
    
    
        //简化植栈操作
        public void push(Object o){
            ActionContext.getContext().getValueStack().push(o);
        }
        public void set(String key,Object o){
            ActionContext.getContext().getValueStack().set(key, o);
        }
        public void put(String key,Object o){
            ActionContext.getContext().put(key, o);
        }
    
        public BaseAction(){
            //获得运行时的class
            ParameterizedType type = (ParameterizedType) this.getClass().getGenericSuperclass();
            Class<T> clazz = (Class<T>) type.getActualTypeArguments()[0];
            //创建反射实例
            try {
                t = clazz.newInstance();
            } catch (InstantiationException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
    
        }
    
    
        @Override
        public T getModel() {
            return this.t;
        }
    
    
        public T getT() {
            return t;
        }
    
    
        public void setT(T t) {
            this.t = t;
        }
    
    
        public void setStaffService(StaffService staffService) {
            this.staffService = staffService;
        }
    
    
        public void setCourseTypeService(CourseTypeService courseTypeService) {
            this.courseTypeService = courseTypeService;
        }
    
    
        public void setPostService(PostService postService) {
            this.postService = postService;
        }
    
    
        public void setDepartmentService(DepartmentService departmentService) {
            this.departmentService = departmentService;
        }
    
    
        public int getPageSize() {
            return pageSize;
        }
    
    
        public void setPageSize(int pageSize) {
            this.pageSize = pageSize;
        }
    
    
        public int getPageNum() {
            return pageNum;
        }
    
    
        public void setPageNum(int pageNum) {
            this.pageNum = pageNum;
        }
    
        public void setClassesService(ClassesService classesService) {
            this.classesService = classesService;
        }
        public StaffService getStaffService() {
            return staffService;
        }
        public CourseTypeService getCourseTypeService() {
            return courseTypeService;
        }
        public PostService getPostService() {
            return postService;
        }
        public DepartmentService getDepartmentService() {
            return departmentService;
        }
        public ClassesService getClassesService() {
            return classesService;
        }
    
    
    
    }

上传文件扩展名不允许提醒  
message.properties

struts.messages.error.file.extension.not.allowed=\u4E0D\u652F\u6301\u8BE5\u6587\u4EF6\: { 1}

展示课程.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
        <%@ taglib uri="/struts-tags" prefix="s" %>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
    <html xmlns="http://www.w3.org/1999/xhtml ">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <link rel="stylesheet" href="${pageContext.request.contextPath}/css/sys.css" type="text/css"/>
    <title>班级管理</title>
    </head>
    <body>
    
    <table border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td class="topg"></td>
      </tr>
    </table>
    <form name="createForm" action="" method="post">
    <s:hidden name="pageNum" value="1" id="pageNum"/>
    <table border="0" cellspacing="0" cellpadding="0" class="wukuang">
      <tr>
        <td width="1%"><img src="${pageContext.request.contextPath}/images/tleft.gif"/></td>
        <td width="20%" align="left">[班级管理]</td>
        <td width="42%"align="center"> </td>
        <td width="36%"align="right">
            <%--添加班级 /html/classesm/addClass.jsp--%>
            <a href="${pageContext.request.contextPath}/pages/classesm/addOrEditClass.jsp">
                <img src="${pageContext.request.contextPath}/images/button/tianjia.gif" class="img"/>
            </a>
            <%--高级查询 <a href="queryClass.html"><img src="${pageContext.request.contextPath}/images/button/gaojichaxun.gif" class="img"/></a> --%>
        </td>
        <td width="1%"><img src="${pageContext.request.contextPath}/images/tright.gif"/></td>
      </tr>
    </table>
    </form>
    <table border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td class="topg"></td>
      </tr>
    </table>
    <table border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td ><img src="${pageContext.request.contextPath}/images/result.gif"/></td>
      </tr>
    </table>
    
    <table width="97%" border="1">
    <thead>
      <tr class="henglan" style="font-weight:bold;">
        <th width="150px" align="center">班级名称</th>
        <th width="200px" align="center">所属课程</th>
        <th width="80px" align="center">开班时间</th>
        <th width="80px" align="center">毕业时间</th>
    
        <th width="80px" align="center">状态</th>
        <th width="70px" align="center">学生总数</th>
        <th width="70px" align="center">升学数</th>
        <th width="70px" align="center">转班数</th>
        <th width="50px" align="center">编辑</th>
        <th width="50px" align="center">查看</th>
        <th align="center">课程表</th>
      </tr>
      </thead>
      <tbody>
        <s:iterator value="pageBean.data">
          <tr class="tabtd2">
            <td align="center"><s:property value="name" /></td>
            <td align="center"><s:property value="courseType.courseName" /></td>
            <td align="center"><s:date name="beginTime" format="yyyy-MM-dd" /></td>
            <td align="center"><s:date name="endTime" format="yyyy-MM-dd" /></td>
            <td align="center"><s:property value="status" /></td>
            <td align="center"><s:property value="totalCount" /></td>
            <td align="center"><s:property value="upgradeCount" /></td>
            <td align="center"><s:property value="changeCount" /></td>
    
            <td align="center">
                <a href="${pageContext.request.contextPath}/pages/classesm/addOrEditClass.jsp"><img src="${pageContext.request.contextPath}/images/button/modify.gif" class="img"/></a>
            </td>
            <td align="center">
                <a href="${pageContext.request.contextPath}/pages/classesm/showClass.jsp"><img src="${pageContext.request.contextPath}/images/button/modify.gif" class="img"/></a>
            </td>
            <td align="center" title="上次上传时间：2015-04-02"> 
                <s:a action="classesAction_preUpload">上传
                    <s:param name="classId" value="classId"></s:param>
                </s:a>  
                <a href="classesAction_download?classId=${classId }">下载
                </a> <br/>
            </td>
          </tr>
        </s:iterator>
      </tbody>
    </table>
    
    
    <table border="0" cellspacing="0" cellpadding="0" align="center">
      <tr>
                <td align="right"><span>第<s:property value="pageBean.pageNum"/>/
                <s:property value="pageBean.totalPage"/>页</span> 
    
                    <s:if test="pageBean.pageNum gt 1">
                        <span> <a href="javascript:void(0)" onclick="showPage(1)">[首页]</a>  
                        <a href="javascript:void(0)" onclick="showPage(<s:property value='pageBean.pageNum - 1'/>)">[上一页]</a>   
                    </s:if>
    
                    <s:if test="pageBean.pageNum lt pageBean.totalPage">
                        <a href="javascript:void(0)" onclick="showPage(<s:property value='pageBean.pageNum + 1'/>)">[下一页]</a>  
                        <a href="javascript:void(0)" onclick="showPage(<s:property value='pageBean.totalPage'/>)">[尾页]</a>
                    </s:if>
                </span>
    
                </td>
      </tr>
      <script type="text/javascript"> function showPage(num){ document.getElementById('pageNum').value=num; document.forms[0].submit(); } </script>
    </table>
    
    </body>
    </html>

上传文件页面.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
    
     <%@taglib prefix="s" uri="/struts-tags"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>无标题文档</title>
    <link href="${pageContext.request.contextPath}/css/sys.css" type="text/css" rel="stylesheet" />
    <script type="text/javascript" src="${pageContext.request.contextPath}/js/Calendar.js"></script>
    </head>
    
    <body class="emp_body">
    <table border="0" cellspacing="0" cellpadding="0" width="100%">
      <tr>
        <td class="topg"></td>
      </tr>
    </table>
    
    <table border="0" cellspacing="0" cellpadding="0" class="wukuang"width="100%">
      <tr>
        <td width="1%"><img src="${pageContext.request.contextPath}/images/tleft.gif"/></td>
        <td width="44%" align="left">[课表上传]</td>
    
        <td width="52%"align="right">
            <a href="javascript:void(0)" onclick="javascript:document.forms[0].submit();">
                <img src="${pageContext.request.contextPath}/images/button/save.gif" />
            </a>
           <a href="javascript:void(0)" onclick="history.go(-1)"><img src="${pageContext.request.contextPath}/images/button/tuihui.gif" /></a>
    
        </td>
        <td width="3%" align="right"><img src="${pageContext.request.contextPath}/images/tright.gif"/></td>
      </tr>
    </table>
    <s:form action="classesAction_upload" namespace="/" enctype="multipart/form-data">
        <s:hidden name="classId" value="%{classId}"></s:hidden>
        <table width="88%" border="0" class="emp_table" style="width:80%;">
          <tr>
            <td width="120">课程类别：</td>
            <td><s:property value="courseType.courseName"/> </td>
            <td> </td>
          </tr>
          <tr>
            <td>班级：</td>
            <td><s:property value="name"/> </td>
            <td> </td>
          </tr>
          <tr>
            <td>上次上传时间：</td>
            <td><s:date name="uploadTime" format="yyyy-MM-dd HH:mm:ss" /> </td>
            <td> </td>
          </tr>
          <tr>
            <td>选择课表：</td>
            <td> </td>
            <td> </td>
          </tr>
          <tr>
            <td colspan="3">
                <s:file name="schedule"></s:file>
            </td>
          </tr>
        </table>
    </s:form>
    
    </body>
    </html>