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Merge pull request #4239 from Thoughtscript/BAEL-1740 

BAEL-1740
This commit is contained in:
Loredana Crusoveanu 2018-05-15 13:05:05 +03:00 committed by GitHub
parent c9f25211c0 19dd1a83ae
commit 3c9a2f3215
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8 changed files with 251 additions and 47 deletions
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109
javax-servlets/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>javax-servlets</artifactId>
<version>1.0-SNAPSHOT</version>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>javax-servlets</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-modules</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>${javax.servlet.version}</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${org.apache.httpcomponents.version}</version>
<scope>test</scope>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring-test.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<dependencies>
<!-- File Uploading -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.3</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
<properties>
<javax.servlet.version>3.1.0</javax.servlet.version>
<org.apache.httpcomponents.version>4.5.3</org.apache.httpcomponents.version>
<spring-test.version>5.0.5.RELEASE</spring-test.version>
</properties>
<!-- Servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl-api</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>${org.apache.httpcomponents.version}</version>
<scope>test</scope>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring-test.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<properties>
<org.apache.httpcomponents.version>4.5.3</org.apache.httpcomponents.version>
<spring-test.version>5.0.5.RELEASE</spring-test.version>
</properties>
</project>

11
javax-servlets/src/main/java/com/baeldung/Constants.java Normal file
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package com.baeldung;
public class Constants {
public static final String UPLOAD_DIRECTORY = "upload";
public static final String DEFAULT_FILENAME = "default.file";
public static final int MEMORY_THRESHOLD = 1024 * 1024 * 3;
public static final int MAX_FILE_SIZE = 1024 * 1024 * 40;
public static final int MAX_REQUEST_SIZE = 1024 * 1024 * 50;
}

54
javax-servlets/src/main/java/com/baeldung/servlets/MultipartServlet.java Normal file
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package com.baeldung.servlets;
import com.baeldung.Constants;
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.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import static com.baeldung.Constants.UPLOAD_DIRECTORY;
@WebServlet(
name = "MultiPartServlet",
urlPatterns = {"/multiPartServlet"}
)
@MultipartConfig(fileSizeThreshold = 1024 * 1024, maxFileSize = 1024 * 1024 * 5, maxRequestSize = 1024 * 1024 * 5 * 5)
public class MultipartServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private String getFileName(Part part) {
for (String content : part.getHeader("content-disposition").split(";")) {
if (content.trim().startsWith("filename"))
return content.substring(content.indexOf("=") + 2, content.length() - 1);
}
return Constants.DEFAULT_FILENAME;
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String uploadPath = getServletContext().getRealPath("") + File.separator + UPLOAD_DIRECTORY;
File uploadDir = new File(uploadPath);
if (!uploadDir.exists())
uploadDir.mkdir();
try {
String fileName = "";
for (Part part : request.getParts()) {
fileName = getFileName(part);
part.write(uploadPath + File.separator + fileName);
}
request.setAttribute("message", "File " + fileName + " has uploaded successfully!");
} catch (FileNotFoundException fne) {
request.setAttribute("message", "There was an error: " + fne.getMessage());
}
getServletContext().getRequestDispatcher("/result.jsp").forward(request, response);
}
}

63
javax-servlets/src/main/java/com/baeldung/servlets/UploadServlet.java Normal file
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package com.baeldung.servlets;
import javax.servlet.annotation.WebServlet;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.util.List;
import static com.baeldung.Constants.*;
@WebServlet(
name = "UploadServlet",
urlPatterns = {"/uploadFile"}
)
public class UploadServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
if (ServletFileUpload.isMultipartContent(request)) {
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(MEMORY_THRESHOLD);
factory.setRepository(new File(System.getProperty("java.io.tmpdir")));
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setFileSizeMax(MAX_FILE_SIZE);
upload.setSizeMax(MAX_REQUEST_SIZE);
String uploadPath = getServletContext().getRealPath("") + File.separator + UPLOAD_DIRECTORY;
File uploadDir = new File(uploadPath);
if (!uploadDir.exists()) {
uploadDir.mkdir();
}
try {
List<FileItem> formItems = upload.parseRequest(request);
if (formItems != null && formItems.size() > 0) {
for (FileItem item : formItems) {
if (!item.isFormField()) {
String fileName = new File(item.getName()).getName();
String filePath = uploadPath + File.separator + fileName;
File storeFile = new File(filePath);
item.write(storeFile);
request.setAttribute("message", "File " + fileName + " has uploaded successfully!");
}
}
}
} catch (Exception ex) {
request.setAttribute("message", "There was an error: " + ex.getMessage());
}
getServletContext().getRequestDispatcher("/result.jsp").forward(request, response);
}
}
}

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javax-servlets/src/main/java/com/baeldung/servlets/UploadWelcomeServlet.java Normal file
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package com.baeldung.servlets;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(name = "UploadWelcomeServlet", urlPatterns = "/uploadwelcome")
public class UploadWelcomeServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.getRequestDispatcher("/upload.jsp").forward(request, response);
}
}

7
javax-servlets/src/main/webapp/WEB-INF/web.xml
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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
</web-app>

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javax-servlets/src/main/webapp/result.jsp Normal file
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<%@ 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>Upload Result</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>

23
javax-servlets/src/main/webapp/upload.jsp Normal file
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<%@ 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>File Upload Demo</title>
</head>
<body>
<div>Apache FileUpload</div>
<form method="post" action="uploadFile" enctype="multipart/form-data">
Choose a file: <input type="file" name="uploadFile"/><input type="submit" value="Upload"/>
</form>
</br>
<div>Servlet Multipart</div>
<form method="post" action="multiPartServlet" enctype="multipart/form-data">
Choose a file: <input type="file" name="multiPartServlet"/><input type="submit" value="Upload"/>
</form>
</body>
</html>