package com.springmvc.controller;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
//url: http://localhost:8080/HelloSpringMVC/hello/mvc
@Controller //告诉DispatcherServlet相关的容器, 这是一个Controller,
@RequestMapping(value="/hello") //类级别的RequestMapping,告诉DispatcherServlet由这个类负责处理以及URL。HandlerMapping依靠这个标签来工作
public class HelloController {
private static Logger log = LoggerFactory.getLogger(HelloController.class);
//方法级别的RequestMapping, 限制并缩小了URL路径匹配,同类级别的标签协同工作,最终确定拦截到的URL由那个方法处理
//并指定访问方法为GET
@RequestMapping(value="/mvc",method=RequestMethod.GET)
public String HelloWorld(Model model){
model.addAttribute("message","Hello Spring MVC!!!"); //传参数给前端
//视图渲染,/WEB-INF/view/HelloWorld.jsp
return "HelloWorld"; //页面的名称,根据此字符串会去寻找名为HelloWorld.jsp的页面
}
//定位到上传文件界面 /hello/upload
@RequestMapping(value="/upload", method=RequestMethod.GET)
public String showUploadPage(){
return "uploadFile"; //上传单个文件
}
/**
* 上传单个文件操作
* @param multi
* @return
*/
@RequestMapping(value="/doUpload", method=RequestMethod.POST)
public String doUploadFile(@RequestParam("file") MultipartFile file){
if(!file.isEmpty()){
log.debug("Process file: {}", file.getOriginalFilename());
try {
//这里将上传得到的文件保存至 d:\\temp\\file 目录
FileUtils.copyInputStreamToFile(file.getInputStream(), new File("d:\\temp\\file\\",
System.currentTimeMillis()+ file.getOriginalFilename()));
} catch (IOException e) {
e.printStackTrace();
log.error(e.toString());
}
}
return "success";
}
//定位到上传多个文件界面 /hello/uploadMulti
@RequestMapping(value="/uploadMulti", method=RequestMethod.GET)
public String showUploadPage2(){
return "uploadMultifile"; //view文件夹下的上传多个文件的页面
}
/**
* 上传多个附件的操作类
* @param multiRequest
* @return
* @throws IOException
*/
@RequestMapping(value="/doMultiUpload", method=RequestMethod.POST)
public String doUploadFile2(MultipartHttpServletRequest multiRequest) throws IOException{
Iterator<String> filesNames = multiRequest.getFileNames();
while(filesNames.hasNext()){
String fileName =filesNames.next();
MultipartFile file = multiRequest.getFile(fileName);
if(!file.isEmpty()){
log.debug("Process file: {}", file.getOriginalFilename());
FileUtils.copyInputStreamToFile(file.getInputStream(), new File("d:\\temp\\file\\",
System.currentTimeMillis()+ file.getOriginalFilename()));
}
}
return "success";
}
}
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