导入jar包
commons-fileupload-1.4.jar和commons-io-2.6.jar
配置springMVC.xml文件
<!-- 文件上传解析器,id="multipartResolver" -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 设置上传文件的大小 (in bytes) -1 indicates no limit (the default)-->
<property name="maxUploadSize" value="200000"></property>
</bean>
<!-- 处理上传文件过大发生的异常，跳转到errorupload页面 -->
<bean id="handlerExceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">errorupload</prop>
</props>
</property>
</bean>
编写controller代码
单文件上传
package com.mvc.controller;
import java.io.File;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
@Controller
public class FileUploadController {
//单文件上传
@PostMapping("uploadfile.do")
public String uploadFile(HttpServletRequest request, @RequestParam(value = "id", required = false) int id,
String name, @RequestParam("myfile") MultipartFile myfile) {
System.out.println(myfile.getContentType() + "," + myfile.getName() + "," + myfile.getOriginalFilename() + ","
+ myfile.getSize());
String path = request.getRealPath("/");
System.out.println("path" + path);
System.out.println("name :" + name + ", id:" + id);
File file = new File(path + myfile.getOriginalFilename());// ? d:/tomcat//xx/xxx.jpg
try {
myfile.transferTo(file);
} catch (IllegalStateException | IOException e) {
e.printStackTrace();
return "error";
}
return "success";
}
}
多文件上传
package com.mvc.controller;
import java.io.File;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
@Controller
public class FileUploadController {
//多文件上传
@PostMapping("uploadfiles.do")
public String uploadFiles(HttpServletRequest request, @RequestParam(value = "id", required = false) int id,
String name, @RequestParam("myfile") MultipartFile[] myfiles) {
for (MultipartFile myfile : myfiles) {
if (!myfile.getOriginalFilename().isEmpty()) {
String path = request.getRealPath("/");
File file = new File(path + myfile.getOriginalFilename());//
try {
// 文件上传操作
myfile.transferTo(file);
} catch (IllegalStateException | IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
return "success";
}
}
jsp页面实现上传
单文上传
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="uploadfile.do" method="post" enctype="multipart/form-data">
<input type="text" name="id" value="1"><br/>
<input type="text" name="name" value="tom"><br/>
<input type="file" name="myfile"><br/>
<input type="submit">
</form>
</body>
</html>
多文件上传
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="uploadfiles.do" method="post" enctype="multipart/form-data">
<input type="text" name="id" value="1"><br/>
<input type="text" name="name" value="tom"><br/>
<input type="file" name="myfile"><br/>
<input type="file" name="myfile"><br/>
<input type="file" name="myfile"><br/>
<input type="submit">
</form>
</body>
</html>