版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.csdn.net/luo4105/article/details/50760583
在SpringMVC添加图片四个步骤
1.在前台，输入框类型name="file" class="easyui-filebox"
代码语言：javascript复制</pre><pre name="code" class="html"><td width="170" colspan="3">
<input name="file" class="easyui-filebox" buttonText="选择图片" style="width: 55%;"/>
</td>2.前台表单设置，添加enctype="multipart/form-data"作用：表单中enctype="multipart/form-data"的意思，是设置表单的MIME编码。默认情况，这个编码格式是application/x-www-form-urlencoded，不能用于文件上传；只有使用了multipart/form-data，才能完整的传递文件数据，进行下面的操作.例子：
代码语言：javascript复制<form id="fm" method="post" enctype="multipart/form-data">3.后台controller，加上@RequestParam(value = "file", required = false) MultipartFile file,
代码语言：javascript复制public Map<String, Object> save(@RequestParam(value = "file", required = false) MultipartFile file,HttpServletRequest request,MatrielHuman matrielHuman) {
}4.放在文件夹
代码语言：javascript复制String path = request.getSession().getServletContext().getRealPath("/WEB-INF/upload");
String fileName = file.getOriginalFilename();
File targetFile = new File(path, fileName);
if (!targetFile.exists()) {
targetFile.mkdirs();
}
try {
file.transferTo(targetFile);
} catch (Exception e) {
e.printStackTrace();
}完整的例子
jsp
代码语言：javascript复制<form id="fm" method="post" enctype="multipart/form-data">
<table width="740" border="0">
<tr>
<td height="48" align="center">
<h2>[图片上传测试]</h2>
</td>
</tr>
<tr>
<td>图片</td>
<td>
<input name="file" class="easyui-filebox" buttonText="选择图片" style="width: 55%;"/>
</td>
</tr>
<span style="white-space:pre"> </span><tr align="center">
<td height="30" colspan="2" align="center">
<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-ok" οnclick="save()">确定</a>
<a href="javascript:void(0)" class="easyui-linkbutton" iconCls="icon-cancel" οnclick="javascript:$('#dlg').dialog('close')">取消</a>
</td>
</tr>
</table>
</form>controller
代码语言：javascript复制@RequestMapping("add_TTestImg")
@ResponseBody
public Map<String, Object> addTTestImg(@RequestParam(value = "file", required = false) MultipartFile file, HttpServletRequest request, TTestImg form, String jsonpCallback)
throws UnsupportedEncodingException {
String path = request.getSession().getServletContext().getRealPath("/WEB-INF/upload");
String fileName = file.getOriginalFilename();
File targetFile = new File(path, fileName);
if (!targetFile.exists()) {
targetFile.mkdirs();
}
try {
file.transferTo(targetFile); //图片上传
} catch (Exception e) {
e.printStackTrace();
}
form.setImg(request.getContextPath() "/upload/" fileName);
Map<String, Object> params = new HashMap<String, Object>();
// 参数检查
params = MapUtil.toMap(form);
// 调用service
tTestImgService.addTTestImg(params);
return AjaxUtils.reponseToJson("添加", true);
}
