详解spring mvc(注解)上传文件的简单例子

详解spring mvc(注解)上传文件的简单例子

spring mvc(注解)上传文件的简单例子。

这有几个需要注意的地方

1.form的enctype=”multipart/form-data” 这个是上传文件必须的

2.applicationContext.xml中 关于文件上传的配置不能少

3、亲这两个jar包不能少哦，之前就是因为少了这个两个jar，一直报一些奇葩的错，给我累了个半死~（版本没什么要求）

commons-fileupload-1.2.2.jar

commons-io-2.0.1.jar

大家可以看具体代码如下:

web.xml

webtest

orgspringframeworkwebcontextContextLoaderListener

contextConfigLocation

/WEB-INF/config/applicationContextxml

/WEB-INF/config/codeifActionxml

dispatcherServlet

orgspringframeworkwebservletDispatcherServlet

contextConfigLocation

/WEB-INF/config/codeifActionxml

1

dispatcherServlet

*do

indexdo

applicationContext.xml

xmlns:xsi="http://wwwworg/2001/XMLSchema-instance" xmlns:p="http://wwwspringframeworkorg/schema/p"

xmlns:context="http://wwwspringframeworkorg/schema/context"

xsi:schemaLocation="http://wwwspringframeworkorg/schema/beans http://wwwspringframeworkorg/schema/beans/spring-beans-xsd

http://wwwspringframeworkorg/schema/context http://wwwspringframeworkorg/schema/context/spring-context-xsd"

default-lazy-init="true">

xmlns:xsi="http://wwwworg/2001/XMLSchema-instance" xmlns:p="http://wwwspringframeworkorg/schema/p"

xmlns:context="http://wwwspringframeworkorg/schema/context"

xsi:schemaLocation="http://wwwspringframeworkorg/schema/beans http://wwwspringframeworkorg/schema/beans/spring-beans-xsd

http://wwwspringframeworkorg/schema/context http://wwwspringframeworkorg/schema/context/spring-context-xsd"

default-lazy-init="true">

codeifAction.xml

<beans xmlns="http://wwwspringframeworkorg/schema/beans"

xmlns:xsi="http://wwwworg/2001/XMLSchema-instance" xmlns:context="http://wwwspringframeworkorg/schema/context"

xsi:schemaLocation="http://wwwspringframeworkorg/schema/beans http://wwwspringframeworkorg/schema/beans/spring-beans-xsd

http://wwwspringframeworkorg/schema/context http://wwwspringframeworkorg/schema/context/spring-context-xsd"

default-lazy-init="true">

UploadAction.java

package comcodeifaction;

import javaioFile;

import javautilDate;

import javaxservlethttpHttpServletRequest;

import orgspringframeworkstereotypeController;

import orgspringframeworkuiModelMap;

import orgspringframeworkwebbindannotationRequestMapping;

import orgspringframeworkwebbindannotationRequestParam;

import orgspringframeworkwebmultipartMultipartFile;

@Controller

public class UploadAction {

@RequestMapping(value = "/uploaddo")

public String upload(@RequestParam(value = "file", required = false) MultipartFile file, HttpServletRequest request, ModelMap model) {

Systemoutprintln("开始");

String path = requestgetSession()getServletContext()getRealPath("upload");

String fileName = filegetOriginalFilename();

// String fileName = new Date()getTime()+"jpg";

Systemoutprintln(path);

File targetFile = new File(path, fileName);

if(!targetFileexists()){

targetFilemkdirs();

}

//保存

try {

filetransferTo(targetFile);

} catch (Exception e) {

eprintStackTrace();

}

modeladdAttribute("fileUrl", requestgetContextPath()+"/upload/"+fileName);

return "result";

}

}

index.jsp

<%@ page pageEncoding="utf-8"%>

WEB-INF/jsp/下的result.jsp

<%@ page pageEncoding="utf-8"%>

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。