<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<form action="/java0209/demo04" method="get">
用户名<input type="text" name="username">
<input type="submit" value="提交">
</form>
</body>
</html>
package com.atping.servlet_;
import org.apache.commons.io.IOUtils;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Part;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
@WebServlet("/demo05")
@MultipartConfig
public class HttpServlet05 extends HttpServlet {
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
String username = req.getParameter("username");
String password = req.getParameter("password");
Part picture = req.getPart("picture");
String pictureName = picture.getName();
System.out.println("用户名" + username + "密码" + password + "文件名字" + pictureName);
//文件具体名字
String fileName = picture.getSubmittedFileName();
InputStream inputStream = picture.getInputStream();
//用绝对路径和相对路径分别演示 /正斜杠单个 //双斜杠两个
// String imgPath = req.getServletContext().getRealPath("img");
FileOutputStream outputStream = new FileOutputStream("D:\\代码\\February\\java0209\\web\\img\\"+fileName);
byte[] bytes = new byte[1024];
int len = 0;
while ((len = inputStream.read(bytes)) != -1){
outputStream.write(bytes,0,len);
}
// IOUtils.copy(inputStream,outputStream);
outputStream.close();
}
}
标签：文件,String,picture,上传,req,import,servlet,javax From： https://www.cnblogs.com/p1121/p/17104838.html