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Add file upload example

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This commit is contained in:
Ivan 2016-03-30 15:06:37 +02:00
parent 09a1ebfa07
commit b7d0b2947a
6 changed files with 55 additions and 82 deletions
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2
spring-mvc-java/src/main/java/org/baeldung/spring/web/config/ClientWebConfig.java
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@ -36,8 +36,6 @@ public class ClientWebConfig extends WebMvcConfigurerAdapter {
super.addViewControllers(registry); super.addViewControllers(registry);
registry.addViewController("/sample.html"); registry.addViewController("/sample.html");
registry.addViewController("/fileUpload.html");
registry.addViewController("/fileUploadForm.html");
} }
@Bean @Bean

3
spring-mvc-java/src/main/java/org/baeldung/spring/web/config/MainWebAppInitializer.java
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@ -14,8 +14,7 @@ import org.springframework.web.servlet.DispatcherServlet;
public class MainWebAppInitializer implements WebApplicationInitializer { public class MainWebAppInitializer implements WebApplicationInitializer {
private static final String TMP_FOLDER = "C:/Users/ivan/Desktop/tmp"; // 5 private static final String TMP_FOLDER = "C:/Users/ivan/Desktop/tmp";
// MB
private static final int MAX_UPLOAD_SIZE = 5 * 1024 * 1024; // 5 MB private static final int MAX_UPLOAD_SIZE = 5 * 1024 * 1024; // 5 MB
/** /**

18
spring-mvc-java/src/main/java/org/baeldung/spring/web/config/WebConfig.java
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@ -4,6 +4,7 @@ import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource; import org.springframework.core.io.ClassPathResource;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
import org.springframework.web.servlet.ViewResolver; import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc; import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry; import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
@ -27,15 +28,14 @@ public class WebConfig extends WebMvcConfigurerAdapter {
// return new StandardServletMultipartResolver(); // return new StandardServletMultipartResolver();
// } // }
// @Bean(name = "multipartResolver") @Bean(name = "multipartResolver")
// public CommonsMultipartResolver multipartResolver() { public CommonsMultipartResolver multipartResolver() {
//
// final CommonsMultipartResolver multipartResolver = new final CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
// CommonsMultipartResolver(); multipartResolver.setMaxUploadSize(100000);
// multipartResolver.setMaxUploadSize(100000);
// return multipartResolver;
// return multipartResolver; }
// }
@Override @Override
public void addViewControllers(final ViewControllerRegistry registry) { public void addViewControllers(final ViewControllerRegistry registry) {

70
spring-mvc-java/src/main/java/org/baeldung/web/controller/FileUploadController.java
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@ -1,18 +1,5 @@
package org.baeldung.web.controller; package org.baeldung.web.controller;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.FileUtils;
import org.springframework.stereotype.Controller; import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap; import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMapping;
@ -23,58 +10,23 @@ import org.springframework.web.multipart.MultipartFile;
@Controller @Controller
public class FileUploadController { public class FileUploadController {
@RequestMapping(value = "/addFile1", method = RequestMethod.POST) @RequestMapping(value = "/fileUpload", method = RequestMethod.GET)
public String displayForm() {
return "fileUploadForm";
}
@RequestMapping(value = "/uploadFile", method = RequestMethod.POST)
public String submit(@RequestParam("file") final MultipartFile file, final ModelMap modelMap) { public String submit(@RequestParam("file") final MultipartFile file, final ModelMap modelMap) {
modelMap.addAttribute("fileName", file.getOriginalFilename()); modelMap.addAttribute("file", file);
modelMap.addAttribute("fileType", file.getContentType());
return "fileUploadView"; return "fileUploadView";
} }
@RequestMapping(value = "/addFile2", method = RequestMethod.POST) @RequestMapping(value = "/uploadMultiFile", method = RequestMethod.POST)
public String submit(final HttpServletRequest request, final HttpServletResponse response, public String submit(@RequestParam("files") final MultipartFile[] files, final ModelMap modelMap) {
final ModelMap modelMap) {
final String TEMP_PATH = "/tmp/";
try {
final DiskFileItemFactory factory = new DiskFileItemFactory();
// Configure a repository (to ensure a secure temp location is used)
final File repository = new File(TEMP_PATH);
factory.setRepository(repository);
// Create a new file upload handler
final ServletFileUpload upload = new ServletFileUpload(factory);
// Parse the request
final List<FileItem> items = upload.parseRequest(request);
final Iterator<FileItem> iter = items.iterator();
while (iter.hasNext()) {
final FileItem item = iter.next();
if (!item.isFormField()) {
final File targetFile = new File(TEMP_PATH + item.getName());
FileUtils.copyInputStreamToFile(item.getInputStream(), targetFile);
modelMap.addAttribute("fileName", item.getName());
modelMap.addAttribute("fileType", item.getContentType());
}
}
} catch (final FileUploadException e) {
e.printStackTrace();
} catch (final IOException e) {
e.printStackTrace();
}
modelMap.addAttribute("files", files);
return "fileUploadView"; return "fileUploadView";
} }
} }

20
spring-mvc-java/src/main/webapp/WEB-INF/view/fileUploadForm.jsp
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@ -8,13 +8,13 @@
<body> <body>
<h3>Enter The File to Upload (MultipartFile handling)</h3> <h3>Enter The File to Upload</h3>
<form:form method="POST" action="/spring-mvc-java/addFile1" enctype="multipart/form-data"> <form:form method="POST" action="/spring-mvc-java/uploadFile" enctype="multipart/form-data">
<table> <table>
<tr> <tr>
<td>Select a file to upload</td> <td>Select a file to upload (Single file)</td>
<td><input type="file" name="file" /></td> <td><input type="file" name="file" /></td>
</tr> </tr>
<tr> <tr>
@ -26,14 +26,22 @@
<br /> <br />
<h3>Enter The File to Upload (HttpServletRequest handling)</h3> <h3>Enter The Files to Upload (Multiple files)</h3>
<form:form method="POST" action="/spring-mvc-java/addFile2" enctype="multipart/form-data"> <form:form method="POST" action="/spring-mvc-java/uploadMultiFile" enctype="multipart/form-data">
<table> <table>
<tr> <tr>
<td>Select a file to upload</td> <td>Select a file to upload</td>
<td><input type="file" name="file" /></td> <td><input type="file" name="files" /></td>
</tr>
<tr>
<td>Select a file to upload</td>
<td><input type="file" name="files" /></td>
</tr>
<tr>
<td>Select a file to upload</td>
<td><input type="file" name="files" /></td>
</tr> </tr>
<tr> <tr>
<td><input type="submit" value="Submit" /></td> <td><input type="submit" value="Submit" /></td>

22
spring-mvc-java/src/main/webapp/WEB-INF/view/fileUploadView.jsp
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@ -5,16 +5,32 @@
<title>Spring MVC File Upload</title> <title>Spring MVC File Upload</title>
</head> </head>
<body> <body>
<h2>Submitted File</h2>
<h2>Submitted File (Single)</h2>
<table> <table>
<tr> <tr>
<td>OriginalFileName :</td> <td>OriginalFileName :</td>
<td>${fileName}</td> <td>${file.originalFilename}</td>
</tr> </tr>
<tr> <tr>
<td>Type :</td> <td>Type :</td>
<td>${fileType}</td> <td>${file.contentType}</td>
</tr> </tr>
</table> </table>
<br />
<h2>Submitted Files (Multiple)</h2>
<table>
<c:forEach items="${files}" var="file">
<tr>
<td>OriginalFileName :</td>
<td>${file.originalFilename}</td>
</tr>
<tr>
<td>Type :</td>
<td>${file.contentType}</td>
</tr>
</c:forEach>
</table>
</body> </body>
</html> </html>