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Converting a File to a MultipartFile (#15180) 

* Converting a File to a MultipartFile

* Converting a File to a MultipartFile
This commit is contained in:
Michael Olayemi 2023-11-14 05:35:36 +01:00 committed by GitHub
parent d82447c15a
commit f8e9ed2925
2 changed files with 51 additions and 0 deletions
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6
spring-web-modules/spring-mvc-java-2/pom.xml
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@ -41,6 +41,11 @@
<artifactId>jaxb-runtime</artifactId>
<version>${jaxb-runtime.version}</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>${commons-fileupload.version}</version>
</dependency>
</dependencies>
<build>
@ -57,6 +62,7 @@
<javax.version>4.0.1</javax.version>
<spring.mvc.version>5.2.2.RELEASE</spring.mvc.version>
<jaxb-runtime.version>2.3.5</jaxb-runtime.version>
<commons-fileupload.version>1.5</commons-fileupload.version>
</properties>
</project>

45
spring-web-modules/spring-mvc-java-2/src/test/java/com/baeldung/multipart/file/ConvertFileToMultipartFileUnitTest.java Normal file
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@ -0,0 +1,45 @@
package com.baeldung.multipart.file;
import static org.junit.Assert.assertEquals;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItem;
import org.apache.commons.io.IOUtils;
import org.junit.jupiter.api.Test;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.mock.web.MockMultipartFile;
public class ConvertFileToMultipartFileUnitTest {
@Test
public void givenFile_whenCreateMultipartFile_thenContentMatch() throws IOException {
File file = new File("src/main/resources/targetFile.tmp");
byte[] fileBytes = Files.readAllBytes(file.toPath());
MultipartFile multipartFile = new MockMultipartFile("file", file.getName(), "text/plain", fileBytes);
String fileContent = new String(multipartFile.getBytes());
assertEquals("Hello World", fileContent);
assertEquals("targetFile.tmp", multipartFile.getOriginalFilename());
}
@Test
public void givenFile_whenCreateMultipartFileUsingCommonsMultipart_thenContentMatch() throws IOException {
File file = new File("src/main/resources/targetFile.tmp");
FileItem fileItem = new DiskFileItem("file", Files.probeContentType(file.toPath()), false, file.getName(), (int) file.length(), file.getParentFile());
InputStream input = new FileInputStream(file);
OutputStream outputStream = fileItem.getOutputStream();
IOUtils.copy(input, outputStream);
MultipartFile multipartFile = new CommonsMultipartFile(fileItem);
String fileContent = new String(multipartFile.getBytes());
assertEquals("Hello World", fileContent);
assertEquals("targetFile.tmp", multipartFile.getOriginalFilename());
}
}