一、单文件上传
1.jar包
2.springmvc-servlet.xml配置
添加以下代码
<!-- 文件上传设置 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="utf-8"></property>
<property name="maxUploadSize" value="10485760000"></property>
<property name="maxInMemorySize" value="4069"></property>
</bean>
3.jsp页面编写
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>单文件上传</title>
</head>
<body>
<div style="margin: 0 auto; margin-top: 100px;">
<form action="oneUpload.html" method="post" enctype="multipart/form-data">
<p>
<span>文件</span>
<input type="file" name="imageFile">
</p>
<p>
<input type="submit" value="提交">
</p>
</form>
</div>
</body>
</html>
4.controller文件编写
package com.Intimate.Controller;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;
import com.upload.Common.ToolUtil;
@Controller
public class UploadController {
@RequestMapping("/oneUpload")
public String oneUpload(@RequestParam("imageFile") MultipartFile imageFile, HttpServletRequest request){
String uploadUrl = "F:\\image\\";
String originalFilaname = imageFile.getOriginalFilename(); //拿到图片的原始名称
String newFilename = ToolUtil.makeFileNameByTime(originalFilaname);
//判断文件路径是否存在，如果不存在则创建文件路径
File dir = new File(uploadUrl);
if(!dir.exists()){
dir.mkdirs();
}
System.out.println("文件上传到：" + uploadUrl + newFilename);
//判断上传文件是否存在，如果不存在则创建文件
File targetFile = new File(uploadUrl + newFilename);
if(!targetFile.exists()){
try {
targetFile.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
//把上传的文件移动到targetFile中,即将内存中的数据写入磁盘中
try {
imageFile.transferTo(targetFile);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
request.setAttribute("imageName", newFilename);
// return "redirect:http://localhost:8080/springmvc_upload/upload/" + filaname;
return "uploadResult";
}
}
5.工具类编写
package com.upload.Common;
import java.text.SimpleDateFormat;
public class ToolUtil {
public static String makeFileNameByTime(String filename){
String fileExtName = filename.substring(filename.lastIndexOf(".")+);
//为防止文件覆盖的现象发生，要为上传文件产生一个唯一的文件名
SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy_MM_dd_HHmmss");
String time = sdf2.format(new java.util.Date());
return time + "."+fileExtName;
}
public static String makeFileNameRand(String filename){
String fileExtName = filename.substring(filename.lastIndexOf(".")+);
return UUID.randomUUID() + "."+fileExtName;
}
}
7.结果展示页面编写
<title>多文件上传结果</title>
</head>
<body>
<div style="margin: 0 auto; margin-top: 100px;">
<img alt="" src="/pic/${imageName}">
</div>
</body>
</html>
/pic 是tomact的虚拟路径，对应着磁盘的一个物理途径，也就是上面图片上传的路径
设置步骤：
1.打开server面板
2.双击server，打开设置界面
3.点击Add External Web Module按钮，选择路径
Document base 就是存放图片的物理路径；
Path 是虚拟路径的名称，记得 / 不能忘记；
点击ok,就完成了。
如果上面的方法没反应，还有一种直接改配置文件的方法：
打开tomact文件夹下的conf文件下的Server.xml文件
在
<Host></Host>
中最后加一句
保存即可
如果改配置文件也没用，那可能是用eclipse，有一个Server文件夹
那么就需要改Server中的server.xml
二、多文件上传
jar包和springmvc-servlet.xml的设置和单文件上传一致，只需要修改jsp页面和controller文件即可
1.jsp页面编写
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>多文件上传</title>
</head>
<body>
<div style="margin: 0 auto; margin-top: 100px;">
<form action="moreUpload.html" method="post" enctype="multipart/form-data">
<p>
<span>文件1:</span>
<input type="file" name="imageFile1">
</p>
<p>
<span>文件2:</span>
<input type="file" name="imageFile2">
</p>
<p>
<input type="submit" value="提交">
</p>
</form>
</div>
</body>
</html>
2.contorller文件编写
package com.Intimate.Controller;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;
import com.upload.Common.ToolUtil;
@Controller
public class UploadController {
@RequestMapping("/moreUpload")
public String moreUpload(HttpServletRequest request){
MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request;
Map<String, MultipartFile> files = multipartHttpServletRequest.getFileMap();
// String uploadUrl = request.getSession().getServletContext().getRealPath("/") +"upload/";
String uploadUrl = "F:\\image\\";
//判断文件路径是否存在，如果不存在则创建文件路径
File dir = new File(uploadUrl);
if(!dir.exists()){
dir.mkdirs();
}
List<String> fileList = new ArrayList<String>();
for(MultipartFile file : files.values()){
String originalFilaname = file.getOriginalFilename(); //拿到图片的原始名称
String newFilename = ToolUtil.makeFileNameRand(originalFilaname);
File targetFile = new File(uploadUrl + newFilename);
if(!targetFile.exists()){
try {
targetFile.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
//把上传的文件移动到targetFile中
try {
file.transferTo(targetFile);
fileList.add(newFilename);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
request.setAttribute("files", fileList);
return "uploadResult";
}
}
3.结果展示页面编写
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>多文件上传结果</title>
</head>
<body>
<div style="margin: 0 auto; margin-top: 100px;">
<%
List<String> fileList = (List)request.getAttribute("files");
for(String url : fileList){
%>
<a href="/pic/<%=url%>">
<img alt="" src="/pic/<%=url%>">
</a>
<%
}
%>
</div>
</body>
</html>
–End