参考博客： https://blog.csdn.net/linhaiyun_ytdx/article/details/76215974
https://www.cnblogs.com/parker-yu/p/7207071.html
最近在最接口对接，需要将文件和一些其他参数发送到其他系统中去，发送文件用到了bootstrap fileinput。
一、首先要下载插件包
插件下载地址：https://github.com/kartik-v/bootstrap-fileinput/
二、引入js和css文件
<link rel="stylesheet" href="<%=request.getContextPath()%>/plug-in/bootstrap-fileinput/css/fileinput.min.css"> <script src="<%=request.getContextPath()%>/plug-in/bootstrap-fileinput/js/fileinput.min.js"></script> <script src="<%=request.getContextPath()%>/plug-in/bootstrap-fileinput/js/locales/zh.js"></script>
三、代码：
1、页面文件
<%@ page language="java" import="java.util.*" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@include file="/context/mytags.jsp"%> <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="http://cdn.static.runoob.com/libs/jquery/2.1.1/jquery.min.js"></script> <script src="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/js/bootstrap.min.js"></script> <link rel="stylesheet" href="<%=request.getContextPath()%>/plug-in/bootstrap-fileinput/css/fileinput.min.css"> <script src="<%=request.getContextPath()%>/plug-in/bootstrap-fileinput/js/fileinput.min.js"></script> <script src="<%=request.getContextPath()%>/plug-in/bootstrap-fileinput/js/locales/zh.js"></script> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>bootstrap fileinput上传</title> </head> <body> <div align="center"> <div class="container-fluid" style="width: 90%; margin-top: 2%"> <form class="form-horizontal" id="form" action="" method="post" enctype="multipart/form-data"> <div class="form-group"> <label for="exec_file" class="col-sm-2 control-label">上传文件<font color="red">*</font>:</label> <div class="col-sm-10"> <input id="input-id" name="file" multiple type="file" data-show-caption="true" data-show-preview="false"> </div> </div> <div class="form-group"> <label for="name" class="col-sm-2 control-label">文件名称<font color="red">*</font>:</label> <div class="col-sm-10"> <input type="text" class="form-control" id="name" placeholder="请输入文件名称"> </div> </div> <div class="form-group"> <label for="description" class="col-sm-2 control-label">描述:</label> <div class="col-sm-10"> <textarea rows="3" cols="2" class="form-control" id="description" placeholder="请输入描述"></textarea> </div> </div> </form> </div> </div> <script> $(function() { initFileInput("input-id"); }) function initFileInput(ctrlName) { var control = $(‘#‘ + ctrlName); control.fileinput({ language : ‘zh‘, //设置语言 uploadUrl : "addScriptJson.do", //上传的地址 allowedFileExtensions : [ ‘jpg‘, ‘gif‘, ‘png‘, ‘bat‘, ‘txt‘ ],//接收的文件后缀 maxFilesNum : 5,//上传最大的文件数量 //uploadExtraData:{"id": 1, "fileName":‘123.mp3‘}, uploadAsync : true, //默认异步上传 showUpload : true, //是否显示上传按钮 showRemove : true, //显示移除按钮 showPreview : true, //是否显示预览 showCaption : false,//是否显示标题 browseClass : "btn btn-primary", //按钮样式 //dropZoneEnabled: true,//是否显示拖拽区域 //minImageWidth: 50, //图片的最小宽度 //minImageHeight: 50,//图片的最小高度 //maxImageWidth: 1000,//图片的最大宽度 //maxImageHeight: 1000,//图片的最大高度 maxFileSize : 0,//单位为kb，如果为0表示不限制文件大小 //minFileCount: 0, //maxFileCount: 10, //表示允许同时上传的最大文件个数 enctype : ‘multipart/form-data‘, validateInitialCount : true, previewFileIcon : "<i class=‘glyphicon glyphicon-king‘></i>", msgFilesTooMany : "选择上传的文件数量({n}) 超过允许的最大数值{m}！", uploadExtraData:function (previewId, index) { //向后台传递的额外参数 var otherData = getdata(); return otherData; } }).on(‘filepreupload‘,function(event, data, previewId, index) { //上传中 var form = data.form, files = data.files, extra = data.extra, response = data.response, reader = data.reader; console.log(‘文件正在上传‘); }).on("fileuploaded",function(event, data, previewId, index) { //一个文件上传成功 console.log(‘文件上传成功！‘ + data.id); }).on(‘fileerror‘, function(event, data, msg) { //一个文件上传失败 console.log(‘文件上传失败！‘ + data.id); }) } function getdata(){ var name = $("#name").val() ; var description = $("#description").val() ; var scriptJson = { "name": name, "description": description } return scriptJson; } </script> </body>
2、后台代码
@Description("新增脚本信息")
@RequestMapping(value = "addScriptJson", method = RequestMethod.POST)
@ResponseBody
public String addScriptJson(@RequestParam MultipartFile file, HttpServletRequest request, HttpServletResponse response) {
String name = request.getParameter("name");
String description = request.getParameter("description");
System.out.println(name);
System.out.println(description);
String filePath = "";// jar包的路径
if (!file.isEmpty()) {
File temp = new File("");
filePath = temp.getAbsolutePath() + "\\" + file.getOriginalFilename();
BufferedOutputStream out;
try {
out = new BufferedOutputStream(new FileOutputStream(new File(filePath)));
out.write(file.getBytes());
out.flush();
out.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
}
}
AjaxJson ajaxJson = new AjaxJson();
try {
// 这里处理业务逻辑
} catch (Exception e) {
ajaxJson.setSuccess(false);
ajaxJson.setMsg(e.getMessage());
e.printStackTrace();
}
return ajaxJson.getJsonStr();
}
