Java文件上传(在SpringMVC模式下,从本地上传到服务器)

时间:2022-10-15 13:32:54

<html>页面部分重要代码

<form method="post" enctype="multipart/form-data"  action="toUpLoadFile">
请选择库房文件:<input type="file"  name="excelFile">
     <input type="submit" value="导入" onclick="return impExcel();"/>
</form>


Java类

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.io.FileUtils;
import org.apache.struts2.ServletActionContext;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.multipart.MultipartFile;


import com.opensymphony.xwork2.ActionContext;


@Controller
public class UpLoadFile {


private MultipartFile  excelFile;// 得到上传的文件
private String excelFileContentType;// 得到文件的类型
private String excelFileFileName;// 得到文件的名称

public MultipartFile getExcelFile() {
return excelFile;
}


public void setExcelFile(MultipartFile excelFile) {
this.excelFile = excelFile;
}


public String getExcelFileContentType() {
return excelFileContentType;
}


public void setExcelFileContentType(String excelFileContentType) {
this.excelFileContentType = excelFileContentType;
}


public String getExcelFileFileName() {
return excelFileFileName;
}


public void setExcelFileFileName(String excelFileFileName) {
this.excelFileFileName = excelFileFileName;
}


@RequestMapping("/toUpLoadFile")
public String execute(MultipartFile excelFile,HttpServletRequest req) throws Exception {//使用MultipartFile 在SpringMVC下  不能直接用File


if (excelFile != null) {
System.out.println(excelFile.getName()+"--"+excelFile.getSize());
String filename=excelFile.getOriginalFilename(); 
SaveFileFromInputStream(excelFile.getInputStream(),req.getRealPath("resources/importExcel"),filename);//保存到服务器的路径

List<StoreEntity> entitys = readFileInfo(req.getRealPath("resources/importExcel")+"/"+filename);
ActionContext.getContext().put("message", "上传成功");


}
return "success";
}
private List<StoreEntity> readFileInfo(String string) {
// TODO Auto-generated method stub
return null;
}

//将MultipartFile 转换为File
public void SaveFileFromInputStream(InputStream stream,String path,String savefile) throws IOException
   {      
       FileOutputStream fs=new FileOutputStream( path + "/"+ savefile);
       System.out.println("------------"+path + "/"+ savefile);
       byte[] buffer =new byte[1024*1024];
       int bytesum = 0;
       int byteread = 0; 
       while ((byteread=stream.read(buffer))!=-1)
       {
          bytesum+=byteread;
          fs.write(buffer,0,byteread);
          fs.flush();
       } 
       fs.close();
       stream.close();      
   }       
}

页面展示:

Java文件上传(在SpringMVC模式下,从本地上传到服务器)

Java文件上传(在SpringMVC模式下,从本地上传到服务器)