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BAEL-1740

This commit is contained in:
Thoughtscript 2018-05-13 03:48:53 +01:00
parent 506962bc96
commit eceb73823b
7 changed files with 183 additions and 45 deletions
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109
javax-servlets/pom.xml
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@ -1,46 +1,75 @@
<?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>

12
javax-servlets/src/main/java/com/baeldung/servlets/Constants.java Normal file
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@ -0,0 +1,12 @@
package com.baeldung.servlets;
public class Constants {
public static final String UPLOAD_DIRECTORY = "upload";
public static final String ENDPOINT = "/jspupload/uploadFile";
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;
}

4
javax-servlets/src/main/java/com/baeldung/servlets/FormServlet.java
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@ -24,10 +24,10 @@ public class FormServlet extends HttpServlet {
response.setHeader("Test", "Success");
response.setHeader("BMI", String.valueOf(bmi));
RequestDispatcher dispatcher = request.getRequestDispatcher("/WEB-INF/jsp/index.jsp");
RequestDispatcher dispatcher = request.getRequestDispatcher("/WEB-INF/jsp/upload.jsp");
dispatcher.forward(request, response);
} catch (Exception e) {
response.sendRedirect("index.jsp");
response.sendRedirect("upload.jsp");
}
}

61
javax-servlets/src/main/java/com/baeldung/servlets/UploadServlet.java Normal file
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@ -0,0 +1,61 @@
package com.baeldung.servlets;
import static com.baeldung.servlets.Constants.MAX_FILE_SIZE;
import static com.baeldung.servlets.Constants.MAX_REQUEST_SIZE;
import static com.baeldung.servlets.Constants.MEMORY_THRESHOLD;
import static com.baeldung.servlets.Constants.UPLOAD_DIRECTORY;
import java.io.File;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
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);
}
}
}

14
javax-servlets/src/main/webapp/WEB-INF/web.xml
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@ -1,7 +1,15 @@
<?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">
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">
<servlet>
<servlet-name>UploadServlet</servlet-name>
<servlet-class>com.baeldung.servlets.UploadServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>UploadServlet</servlet-name>
<url-pattern>/uploadFile</url-pattern>
</servlet-mapping>
</web-app>

13
javax-servlets/src/main/webapp/result.jsp Normal file
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@ -0,0 +1,13 @@
<%@ 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>

15
javax-servlets/src/main/webapp/upload.jsp Normal file
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@ -0,0 +1,15 @@
<%@ 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>
<form method="post" action="uploadFile" enctype="multipart/form-data">
Choose a file: <input type="file" name="uploadFile" /><input type="submit" value="Upload" />
</form>
</body>
</html>