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Bootstrap fileinput v1.0(ssm版)
前言
bootstrap fileinput是一个很好的文件上传插件。
但是官方不出api,这就尴尬了。
百度一下,每个人写法都不相同,好多代码本身都是错的。我修改后才能跑起来。
综上所述:所以今天我摸索了一天,把今天能够跑的起来的程序核心代码贴上。
完整demo在文章末尾github地址上
基于本人习惯:所用前端控件均为2017年最新的。
最后再唠叨一句:bootstrap不支持IE8极其以下的。没必要与IE较真,毕竟微软人家自己的win10都抛弃ie了。我们又何苦抓着不放呢
功能说明
这个版本的功能比较单一,图片不能提前上传,只能与表单一起提交。也不支持多图上传,适合单张图片上传需求。多张的话,请看我写的另外两篇博客
核心代码
因为是ssm项目,所以dao层和pojo是逆向工程生成的,service层和controller层基本一样,所以这3层的代码我就不贴出来,仅仅贴出核心代码的controller和jsp
ArticleController.java
package com.isd.controller; import java.io.File; import java.io.IOException; import java.io.PrintWriter; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.UUID; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.servlet.ModelAndView; import com.isd.pojo.Article; import com.isd.service.ArticleService; @Controller public class ArticleController { //用于检测图片是否上传成功 public void checkUpIsOk(int i,HttpServletResponse response) throws IOException{ response.setHeader("content-type", "text/html;charset=UTF-8"); response.setCharacterEncoding("UTF-8"); PrintWriter out = response.getWriter();//获取PrintWriter输出流 if(i==0){ out.write("插入失败"); out.write("<script>setTimeout(function(){"+ "history.go(-1);"+ "},500) </script>"); out.close(); }else{ out.write("插入成功"); out.write("<script>setTimeout(function(){"+ "location.href=http://www.mamicode.com/‘goList‘"+ "},500) </script>"); out.close(); } } //新增文章保存 @Autowired private ArticleService articleService; @RequestMapping("addArticle") public void addArticle(HttpSession session,HttpServletResponse response,Article record,MultipartFile image) throws IllegalStateException, IOException { //原始名称 String oldFilename = image.getOriginalFilename(); //上传图片 boolean b=image!=null && oldFilename!=null && oldFilename.length()>0; //存储图片的物理路径 String pic_path = session.getServletContext().getRealPath("WEB-INF/static/upload"); if(b){ //新的图片名称 String newFileName = UUID.randomUUID() + oldFilename.substring(oldFilename.lastIndexOf(".")); //新图片 File newFile = new File(pic_path+"/"+newFileName); //将内存中的数据写入磁盘 image.transferTo(newFile); //将新图片名称写到book中 record.setUrl(newFileName); //新增的这条记录插入数据库 int i=articleService.insert(record); checkUpIsOk(i,response); }else{ record.setUrl("default.png"); int i=articleService.insert(record); checkUpIsOk(i,response); } } //文章列表跳转 @RequestMapping("goList") public ModelAndView goList(){ List<Article> artall=articleService.selectAll(); System.out.println(artall.size()); ModelAndView mv=new ModelAndView(); mv.addObject("artall",artall); mv.setViewName("list"); return mv; } //新增文章跳转 @RequestMapping("goAdd") public String goAdd(){ return "add"; } }
add.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <html> <head> <meta charset="utf-8"> <title>图片上传</title> <!-- jq --> <script type="text/javascript" src="<%=basePath%>static/plugs/jquery-3.1.1.min.js"></script> <!-- bootstrap --> <link rel="stylesheet" href="<%=basePath%>static/plugs/bootstrap/css/bootstrap.min.css"> <script type="text/javascript" src="<%=basePath%>static/plugs/bootstrap/js/bootstrap.min.js"></script> <!-- 图片上传即使预览插件 --> <link rel="stylesheet" href="<%=basePath%>static/plugs/bootstrap-fileinput/css/fileinput.min.css"> <script type="text/javascript" src="<%=basePath%>static/plugs/bootstrap-fileinput/js/fileinput.min.js"></script> <script type="text/javascript" src="<%=basePath%>static/plugs/bootstrap-fileinput/js/locales/zh.js"></script> <style> .container{padding-top:60px} </style> </head> <body> <div class="container"> <div class="row"> <div class="col-sm-6 col-sm-offset-3"> <form class="form-horizontal" role="form" method="post" action="<%=basePath%>addArticle" enctype="multipart/form-data" > <div class="form-group"> <label class="col-sm-2 control-label">描述</label> <div class="col-sm-10"> <input type="text" name="describ" class="col-sm-10 form-control" placeholder="请描述"> </div> </div> <div class="form-group"> <label class="col-sm-2 control-label">缩略图</label> <div class="col-sm-10"> <input type="file" name="image" class="col-sm-10 myfile" value=""/> </div> </div> <button type="submit" class="btn btn-default col-sm-2 col-sm-offset-4">提交</button> </form> </div> </div> </div> <script> $(".myfile").fileinput({ showUpload: false, //是否显示上传按钮,跟随文本框的那个 showRemove : false, //显示移除按钮,跟随文本框的那个 allowedFileTypes: [‘image‘],//配置允许文件上传的类型 allowedPreviewTypes : [ ‘image‘ ],//配置所有的被预览文件类型 allowedPreviewMimeTypes : [ ‘jpg‘, ‘png‘, ‘gif‘ ],//控制被预览的所有mime类型 language : ‘zh‘ }) </script> </body> </html>
list.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <html> <head> <meta charset="utf-8"> <title>图片上传</title> <!-- jq --> <script type="text/javascript" src="${basePath}static/plugs/jquery-3.1.1.min.js"></script> <!-- bootstrap --> <link rel="stylesheet" href="${basePath}static/plugs/bootstrap/css/bootstrap.min.css"> <script type="text/javascript" src="${basePath}static/plugs/bootstrap/js/bootstrap.min.js"></script> <!-- 图片上传即使预览插件 --> <link rel="stylesheet" href="${basePath}static/plugs/bootstrap-fileinput/css/fileinput.min.css"> <script type="text/javascript" src="${basePath}static/plugs/bootstrap-fileinput/js/fileinput.min.js"></script> <style> .container{padding-top:60px} .pic{width:100px;} td {vertical-align: middle!important;} </style> </head> <body> <div class="container"> <div class="row"> <button class="btn btn-default col-sm-2 pull-right add">新增</button> <table class="table table-striped table-bordered"> <caption>文章列表</caption> <thead> <tr> <th>id</th> <th>描述</th> <th>缩率图</th> </tr> </thead> <tbody> <c:forEach var="item" items="${artall}"> <tr> <td>${item.id}</td> <td>${item.describ}</td> <td> <img src="${basePath}static/upload/${item.url}" class="pic"/> </td> </tr> </c:forEach> </tbody> </table> </div> </div> <script> $(".add").click(function(){ location.href="${basePath}goAdd"; }) </script> </body> </html>
数据库设计
项目完整地址
https://git.oschina.net/dingshao/bootstrap_fileinput_v1.git
Bootstrap fileinput v1.0(ssm版)
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