javaweb12

最新推荐文章于 2024-12-02 17:03:28 发布

想进步的小孟

最新推荐文章于 2024-12-02 17:03:28 发布

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分类专栏： C++

本文链接：https://blog.youkuaiyun.com/qq_37701945/article/details/80489064

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servlet.servlet

package servlet;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.oreilly.servlet.MultipartRequest;
import com.oreilly.servlet.multipart.DefaultFileRenamePolicy;
import com.oreilly.servlet.multipart.FileRenamePolicy;

/**
* Servlet implementation class servlet
*/
@WebServlet("/servlet")
public class servlet extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
* @see HttpServlet#HttpServlet()
*/
public servlet() {
super();
// TODO Auto-generated constructor stub
}

/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
}

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html; charset=utf-8");
String saveDirectory="D:\\课程\\javaweb";
File savedir=new File(saveDirectory);
if(!savedir.exists()) {
savedir.mkdirs();
}
int maxPostsize=5*1024*1024;
FileRenamePolicy policy=(FileRenamePolicy)new DefaultFileRenamePolicy();
MultipartRequest multi;
multi=new MultipartRequest(request, saveDirectory,maxPostsize,"utf-8",policy);
PrintWriter out=response.getWriter();
out.print("添加成功");
}

}

servlet.servlet1

package servlet;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.oreilly.servlet.MultipartRequest;
import com.oreilly.servlet.multipart.DefaultFileRenamePolicy;
import com.oreilly.servlet.multipart.FileRenamePolicy;

/**
* Servlet implementation class servlet1
*/
@WebServlet("/servlet1")
public class servlet1 extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
* @see HttpServlet#HttpServlet()
*/
public servlet1() {
super();
// TODO Auto-generated constructor stub
}

/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.getWriter().append("Served at: ").append(request.getContextPath());
}

/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setContentType("text/html; charset=utf-8");
String fileName=request.getParameter("file2");
File file = new File(fileName);
file.delete();
PrintWriter out=response.getWriter();
out.print("删除成功");
}

}

web12.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<div align="center">
<br><br><br><br><br><br><br><br>
<a href="upload.jsp">添加</a><br><br>
<a href="delete.jsp">删除</a><br><br>
</div>
</body>

</html>

delete.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<br><br><br><br><br><br><br><br><br><br>
<div align="center">
<form method="post" action="servlet1">
<input type="file" name="file2"/>&nbsp&nbsp&nbsp
<input type="submit" value="删除"/>
</form>
</div>
</body>

</html>

upload.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<br><br><br><br><br><br><br><br><br><br>
<div align="center">
<form method="post" action="servlet" enctype="multipart/form-data">
<input type="file" name="file1"/>&nbsp&nbsp&nbsp
<input type="submit" value="添加"/>
</form>
</div>
</body>
</html>