个人根据相关资料实现利用SpringMVC和Ajax实现文件上传功能:
<强>环境:
1. jdk1.7
2. maven3.3.9
3. tomcat7
<强>第一步:
导入相关的jar包:
<强>第二步:
配置springmvc-config.xml
& lt; & # 63; xml version=" 1.0 " encoding=" utf - 8 " & # 63;比;
& lt;豆类xmlns=" http://www.springframework.org/schema/beans "
xmlns: xsi=" http://www.w3.org/2001/XMLSchema-instance " xmlns: p=" http://www.springframework.org/schema/p "
xmlns:上下文=" http://www.springframework.org/schema/context "
xsi: schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd”比;
& lt;上下文:component-scan基础包=" com。lc”/比;
& lt; !——配置视图解析器——比;
& lt; bean id=" viewResolver "
类=皁rg.springframework.web.servlet.view.InternalResourceViewResolver”比;
& lt;属性名="前缀" value=" https://www.yisu.com/WEB-INF/page/"祝辞& lt;/property>
& lt;属性名="后缀" value=" https://www.yisu.com/zixun/.jsp "祝辞& lt;/property>
& lt;/bean>
& lt; bean id=" multipartResolver "
类=皁rg.springframework.web.multipart.commons.CommonsMultipartResolver”比;
& lt; !——上传文件的最大大小——比;
& lt;属性名=" maxUploadSize " value=" https://www.yisu.com/zixun/17367648787 "祝辞& lt;/property>
& lt; !——上传文件的编码——比;
& lt;属性名=" defaultEncoding " value=" https://www.yisu.com/zixun/UTF-8 "祝辞& lt;/property>
& lt;/bean>
& lt;/beans>
<强>第三步:
配置web . xml
& lt; & # 63; xml version=" 1.0 " encoding=" utf - 8 " & # 63;比;
& lt; web xmlns: xsi=" http://www.w3.org/2001/XMLSchema-instance "
xmlns=" http://xmlns.jcp.org/xml/ns/javaee "
xsi: schemaLocation=" http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd”
id=" WebApp_ID " version=" 3.1 "比;
& lt; display-name> fileupload
& lt; welcome-file-list>
& lt; welcome-file> index.html
& lt; welcome-file> index.htm
& lt; welcome-file> index.jsp
& lt; welcome-file> default.html
& lt; welcome-file> default.htm
& lt; welcome-file> default.jsp
& lt;/welcome-file-list>
& lt; !——Springmvc的控制分发器——比;
& lt; servlet>
& lt; servlet-name> springDispatcherServlet
& lt; servlet-class> org.springframework.web.servlet.DispatcherServlet
& lt; init-param>
& lt; param-name> contextConfigLocation
& lt; param-value>类路径:springmvc-config.xml
& lt;/init-param>
& lt; load-on-startup> 1 & lt;/load-on-startup>
& lt;/servlet>
& lt; servlet-mapping>
& lt; servlet-name> springDispatcherServlet
& lt; url-pattern>/& lt;/url-pattern>
& lt;/servlet-mapping>
& lt;/web-app>
<强>第四步:
新建一个控制器类,并实现文件上传的功能
进口java.io.File;
进口java.util.HashMap;
进口java.util.Map;
进口java.util.Random;
进口javax.json.Json;
进口javax.servlet.http.HttpServletRequest;
进口org.springframework.stereotype.Controller;
进口org.springframework.web.bind.annotation.RequestMapping;
进口org.springframework.web.bind.annotation.RequestMethod;
进口org.springframework.web.bind.annotation.RequestParam;
进口org.springframework.web.bind.annotation.ResponseBody;
进口org.springframework.web.multipart.MultipartFile;
进口com.alibaba.fastjson.JSON;
进口com.fasterxml.jackson.databind.util.JSONPObject;
@ controller
公开课FileUploadController {
@RequestMapping (value=" https://www.yisu.com/zixun/index ",方法=RequestMethod.GET)
公共字符串索引(){
返回“指数”;
}
@RequestMapping (value=" https://www.yisu.com/upload ",方法=RequestMethod.POST)
@ResponseBody
公共字符串上传(@RequestParam MultipartFile文件(“文件”),
HttpServletRequest请求){
String> Map
