SSM处理表单提交包含上传文件的整个表单的办法

SSM处理表单提交包含上传文件的整个表单的办法

别再找了,各种说法都有,但是我翻看了很多都不全,我就把我写的还算全套拿出来。。。。。
我的前台代码是:

<%--
  Created by IntelliJ IDEA.
  User: Administrator
  Date: 2018/5/4
  Time: 21:56
  To change this template use File | Settings | File Templates.
--%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>修改商品信息title>

head>
<body>
    
    <form id="itemForm" action="${pageContext.request.contextPath }/items/updateItems.do" enctype="multipart/form-data" method="post">
        <input type="hidden" name="id" value="${items.id }" /> 修改商品信息:
        <table width="100%" border=1>
            <tr>
                <td>商品名称td>
                <td><input type="text" name="name" value="${items.name }" />td>
            tr>
            <tr>
                <td>商品价格td>
                <td><input type="text" name="price"
                    value="${items.price }" />td>
            tr>
            <tr>
                <td>商品生产日期td>
                <td><input type="text" name="createtime"
                    value="${items.createtime}" pattern="yyyy-MM-dd HH:mm:ss"/>" />td>
            tr>
            <tr>
                <td>商品图片td>
                <td><c:if test="${items.pic !=null}">
                        <img src="/pic/${items.pic}" width=100 height=100 />
                        <br />
                    c:if> <input type="file" name="upload" />td>
            tr>
            <tr>
                <td>商品简介td>
                <td><textarea rows="3" cols="30" name="detail">${items.detail }textarea>
                td>
            tr>
            <tr>
                <td colspan="2" align="center"><input type="submit" value="提交" />
                td>
            tr>
        table>

    form>
body>

html>

我的Controller代码是:

@RequestMapping("/updateItems.do")
    public String updateItems(@Param("id") Integer id, @Param("name") String name, @Param("price") Float price, @Param("createtime") String createtime,
                              @Param("detail") String detail, @Param("upload") MultipartFile upload, HttpServletRequest request) throws Exception {
        String realPath = request.getSession().getServletContext().getRealPath("/pic/");
        File file = new File(realPath);
        if(!file.exists()) {
            file.mkdirs();
        }
        Items items = new Items();
        if(upload!=null) {
            String filename = upload.getOriginalFilename();
            upload.transferTo(new File(realPath,filename));
            items.setPic(filename);
        }else {
            items.setPic(null);
        }
        items.setDetail(detail);
        items.setId(id);
        items.setPrice(price);
        items.setName(name);
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        items.setCreatetime(sdf.parse(createtime));
        productService.update(items);
        return "redirect:findAll.do";
    }

我的dao层代码是:

 @Update("update items set name = #{name},price=#{price},pic=#{pic},createtime=#{createtime},detail=#{detail} where id=#{id}")
    void update(@Param("id") Integer id, @Param("createtime") Date createtime, @Param("detail") String detail, @Param("name") String name, @Param("pic") String pic,@Param("price") Float price) throws Exception;

**还有一定要导入pom依赖:

commons-fileupload
commons-fileupload
1.3.1


commons-io
commons-io
2.4`**
springmvc.xml:

id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="10485760" />
    

其他就没什么了,

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