Easyui前端、JAVA后台上传附件

前端使用easyui框架，后台使用JAVA 的JFinal框架开发

功能描述：实现附件上传功能。文件上传路径为：。。/upload(上传文件夹)/身份证号/慢病编码/上传的附件。

细节要求：实现多图片上传，上传后可在前台页面实现二次增加和删除

1.前台页面显示：填写身份证号、选择慢病信息，点击“上传附件”按钮选择要上传的文件

 1     <tr>
 2     <td class="pe-label"><span class="sp_waning">*</span>身份证号：</td>
 3     <td class="pe-content">
 4         <input id="newchrApply_app05" name="newchrApply_app05" class="easyui-textbox">
 5     </td>
 6     <td class="pe-label">申请疾病：</td>
 7     <td class="pe-content">
 8         <input id="newchrApply_app10" name="newchrApply_app10" class="easyui-combobox">
 9 </tr>
10 <tr>
11    <td class="pe-label">附件上传：</td>
12    <td class="pe-content" colspan="3">
13       <span class="ui_button_primary"><label for="newchrApply_file1">上传附件</label></span>
14       <input id="newchrApply_file1" name="newchrApply_file1" type="file" style="position:absolute;clip:rect(0 0 0 0);" multiple="multiple">
15    </td>
16 </tr>
17 <tr>
18    <td class="pe-label">上传附件名称：</td>
19    <td class="pe-content" colspan="3">
20       <ul id='content'></ul>
21    </td>
22 </tr>

表单显示Html代码

2.在“上传附件名称”中显示上传的文件信息及删除按钮。

 1 var chrApply_filesTemp = [];//保存上传的附件集合
 2 //显示上传文件名
 3 var test = document.getElementById('newchrApply_file1');
 4 test.addEventListener('change', function() {
 5    var t_files = this.files;
 6    var p_idnum = $.trim($('#newchrApply_app05').val()); //身份证号
 7    var p_icd01 = $('#newchrApply_app10').combobox('getValue');
 8    if(p_idnum == '' || p_icd01 == '') {
 9       $.messager.alert('提示', '请输入身份证号或选择疾病！', 'warning');
10       return;
11    }
12    var p_app01 = $.trim($('#newchrApply_app01').val());
13    if(p_app01 == '') {
14       var p_code = "SQ" + CreateCode(3);
15       $('#newchrApply_app01').val(p_code);
16    }
17    var str = '';
18    if(t_files.length > 0) {
19       var formData = new FormData();
20       for(var i = 0; i < t_files.length; i++) {
21          formData.append("file_cont" + i, t_files[i]);
22       }
23       formData.append("fileCount", t_files.length);
24       formData.append("app05", p_idnum);
25       formData.append("app10", p_icd01);
26       $.ajax({
27          url: '/ChrApply/UploadFiles',
28          type: 'POST',
29          data: formData,
30          processData: false,
31          contentType: false,
32          success: function(result) {
33             if(result.code > 0) {
34                var p_filesname = [];
35                if(chrApply_filesTemp.length > 0) {
36                   for(var i = 0; i < chrApply_filesTemp.length; i++) {
37                      if(p_filesname.indexOf(chrApply_filesTemp[i].name) == -1) {
38                         p_filesname.push(chrApply_filesTemp[i].name);
39                      }
40                   }
41                }
42                var chrApply_filesUp = t_files; //新上传的文件集合
43                if(chrApply_filesUp.length > 0) {
44                   for(var i = 0; i < chrApply_filesUp.length; i++) {
45                      if(p_filesname.indexOf(chrApply_filesUp[i].name) == -1) {
46                         chrApply_filesTemp.push({
47                            'name': chrApply_filesUp[i].name,
48                            'size': chrApply_filesUp[i].size
49                         });
50                      }
51                   }
52                }
53                for(var i = 0, len = chrApply_filesTemp.length; i < len; i++) {
54                   str += '<li id="li_' + i + '">名称：<span id="sp_name_' + i + '">' + chrApply_filesTemp[i].name + '</span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;大小：<span id="sp_size_' + i + '"> ' + parseInt(chrApply_filesTemp[i].size / 1024) + 'KB</span>' +
55                      ' <input id="delfj" type="button" value="删除" onclick="delAnnex(' + i + ')" ></li>';
56                }
57                document.getElementById('content').innerHTML = str;
58             } else {
59                $.messager.alert('提示', result.msg, 'warning');
60             }
61          }
62       });
63    }
64 }, false);

上传附件JS代码

 1     /**
 2      * 上传附件(多文件上传)
 3      * 
 4      */
 5     public void UploadFiles() {
 6         MessageData data = new MessageData();
 7         try {
 8             UploadFile file0 = getFile("file_cont0");
 9             String UploadPath0 = file0.getUploadPath();
10             Integer fileCount = getParaToInt("fileCount");
11             String app05 = getPara("app05");// 身份证号
12             String app10 = getPara("app10");// 疾病编码
13             String path = "upload/" + app05 + "/" + app10 + "/".trim();
14 
15             // 1.新建【身份证】文件夹
16             FileOperate fo = new FileOperate();
17             fo.createFolder(UploadPath0 + "/" + app05);
18             File directory = new File(UploadPath0 + "/" + app05);// 设定为当前文件夹
19             // System.out.println(directory.getCanonicalFile());//返回类型为File
20             // 2.在【身份证】文件夹下-->建立【疾病编码】文件夹
21             FileOperate fo_1 = new FileOperate();
22             fo_1.createFolder(directory.getCanonicalFile() + "/" + app10);
23 
24             String realPath = getSession().getServletContext().getRealPath(path);
25             // 数据库添加附件信息
26             for (int i = 0; i < fileCount; i++) {
27                 UploadFile file = getFile("file_cont" + i);
28                 String fileName = file.getFileName();
29                 String newName = fileName;
30 
31                 // 移动文件：从oldPath路径 -->移动到-->newPath路径,并删除oldPath路径 里的文件
32                 String oldPath = file.getUploadPath() + "\" + newName.trim();
33                 String newPath = file.getUploadPath() + "\" + app05 + "\" + app10 + "\" + newName.trim();
34                 file.getFile().renameTo(new File(realPath + "/" + newName));
35                 fo_1.moveFile(oldPath, newPath);
36             }
37             data.setCode(1);
38         } catch (Exception e) {
39             data.setCode(0);
40             data.setMsg("上传失败！" + e.getCause().getMessage());
41         } finally {
42             JSONObject json = JSONObject.fromObject(data);
43             renderJson(json.toString());
44         }
45     }

上传附件后台JAVA代码

3.附件上传保存路径：

4.实现前台页面删除附件功能

 1 //删除
 2 function delAnnex(id) {
 3    var del_idnum = $.trim($('#newchrApply_app05').val()); //身份证号
 4    var del_icd01 = $('#newchrApply_app10').combobox('getValue');
 5    var del_name = document.getElementById("sp_name_" + id).innerText;
 6 
 7    $.ajax({
 8       url: '/ChrApply/DeleteAnnex',
 9       type: 'POST',
10       data: {
11          'app05': del_idnum,
12          'app10': del_icd01,
13          'ann01': del_name
14       },
15       success: function(result) {
16          if(result.code > 0) {
17             // 删除集合中的元素
18             for(var i = 0; i < chrApply_filesTemp.length; i++) {
19                var flg = isEqual(chrApply_filesTemp[i].name.valueOf(), del_name.valueOf());
20                if(flg == true) {
21                   chrApply_filesTemp.splice(i, 1);
22                }
23             }
24             var first = document.getElementById("li_" + id);
25             first.remove();
26          } else {
27             $.messager.alert('提示', result.msg, 'warning');
28          }
29       }
30    });
31 }

删除按钮JS代码

 1     /**
 2      * 删除附件
 3      */
 4     public void DeleteAnnex() {
 5         MessageData data = new MessageData();
 6         try {
 7             String app05 = getPara("app05");// 身份证号
 8             String app10 = getPara("app10");// 疾病编码
 9             String ann01 = getPara("ann01");// 文件名
10             String url = "upload/" + app05 + "/" + app10 + "/" + ann01.trim();
11 
12             // 删除上传到服务器的文件
13             String realPath = getSession().getServletContext().getRealPath(url);
14             File file = new File(realPath);
15             file.delete();
16 
17             data.setCode(1);
18         } catch (Exception e) {
19             data.setCode(0);
20             data.setMsg("删除申诉材料失败！" + e.getCause().getMessage());
21         } finally {
22             JSONObject json = JSONObject.fromObject(data);
23             renderJson(json.toString());
24         }
25     }

删除附件后台JAVA代码

注：上传附件及删除附件后台JAVA代码中使用到的UploadFile类及FileOperate类的代码请参考我的博文《JAVA文件操作工具类（读、增、删除、复制）》https://www.cnblogs.com/KLLQBKY/p/9293154.html

Easyui前端、JAVA后台 上传附件

Easyui前端、JAVA后台上传附件