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spring-boot-file-upload
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‎README.md

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@@ -23,6 +23,7 @@ Spring boot使用的各种示例，以最简单、最实用为标准
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- [spring-boot-multi-mongodb](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-multi-mongodb)：spring boot和mongodb多数据源的使用
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- [spring-boot-package-war](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-package-war)：spring-boot打包成war包示例
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- [spring-boot-shiro](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-shiro)：springboot 整合shiro rbac示例
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- [spring-boot-file-upload](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-file-upload)：springboot 集成上传文件示例
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**[Favorites-web](https://github.com/cloudfavorites/favorites-web)：云收藏（springboot实战开源项目）**
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‎README_EN.md

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@@ -24,4 +24,7 @@ Spring Boot Examples, Use the simplest and most useful scene demo.
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- [spring-boot-multi-mongodb](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-multi-mongodb)：Spring Boot + multiMongodb
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- [spring-boot-package-war](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-package-war)：Spring Boot package war
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- [spring-boot-shiro](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-shiro)：spring boot shiro rbac demo
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- [Favorites-web](https://github.com/cloudfavorites/favorites-web)：Open source projects developed using Spring Boot
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- [spring-boot-file-upload](https://github.com/ityouknow/spring-boot-examples/tree/master/spring-boot-file-upload)：Spring Boot file upload example
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**[Favorites-web](https://github.com/cloudfavorites/favorites-web)：Open source projects developed using Spring Boot**

‎spring-boot-file-upload/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
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http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.neo</groupId>
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<artifactId>spring-boot-file-upload</artifactId>
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<packaging>jar</packaging>
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<version>1.0</version>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>1.5.7.RELEASE</version>
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</parent>
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<properties>
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<java.version>1.8</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-thymeleaf</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-devtools</artifactId>
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<optional>true</optional>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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</plugins>
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</build>
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</project>

‎spring-boot-file-upload/src/main/java/com/neo/FileUploadWebApplication.java

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package com.neo;
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import org.apache.coyote.http11.AbstractHttp11Protocol;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.boot.context.embedded.tomcat.TomcatConnectorCustomizer;
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import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
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import org.springframework.context.annotation.Bean;
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@SpringBootApplication
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public class FileUploadWebApplication {
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private int maxUploadSizeInMb = 10 * 1024 * 1024; // 10 MB
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public static void main(String[] args) throws Exception {
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SpringApplication.run(FileUploadWebApplication.class, args);
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}
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//Tomcat large file upload connection reset
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@Bean
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public TomcatEmbeddedServletContainerFactory tomcatEmbedded() {
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TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory();
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tomcat.addConnectorCustomizers((TomcatConnectorCustomizer) connector -> {
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if ((connector.getProtocolHandler() instanceof AbstractHttp11Protocol<?>)) {
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//-1 means unlimited
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((AbstractHttp11Protocol<?>) connector.getProtocolHandler()).setMaxSwallowSize(-1);
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}
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});
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return tomcat;
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}
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}

‎spring-boot-file-upload/src/main/java/com/neo/controller/GlobalExceptionHandler.java

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package com.neo.controller;
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import org.springframework.web.bind.annotation.ControllerAdvice;
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import org.springframework.web.bind.annotation.ExceptionHandler;
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import org.springframework.web.multipart.MultipartException;
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import org.springframework.web.servlet.mvc.support.RedirectAttributes;
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@ControllerAdvice
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public class GlobalExceptionHandler {
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//https://jira.spring.io/browse/SPR-14651
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//4.3.5 supports RedirectAttributes redirectAttributes
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@ExceptionHandler(MultipartException.class)
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public String handleError1(MultipartException e, RedirectAttributes redirectAttributes) {
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redirectAttributes.addFlashAttribute("message", e.getCause().getMessage());
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return "redirect:/uploadStatus";
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}
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}

‎spring-boot-file-upload/src/main/java/com/neo/controller/UploadController.java

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package com.neo.controller;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.multipart.MultipartFile;
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import org.springframework.web.servlet.mvc.support.RedirectAttributes;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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@Controller
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public class UploadController {
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//Save the uploaded file to this folder
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private static String UPLOADED_FOLDER = "E://temp//";
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@GetMapping("/")
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public String index() {
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return "upload";
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}
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@PostMapping("/upload") // //new annotation since 4.3
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public String singleFileUpload(@RequestParam("file") MultipartFile file,
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RedirectAttributes redirectAttributes) {
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if (file.isEmpty()) {
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redirectAttributes.addFlashAttribute("message", "Please select a file to upload");
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return "redirect:uploadStatus";
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}
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try {
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// Get the file and save it somewhere
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byte[] bytes = file.getBytes();
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Path path = Paths.get(UPLOADED_FOLDER + file.getOriginalFilename());
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Files.write(path, bytes);
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redirectAttributes.addFlashAttribute("message",
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"You successfully uploaded '" + file.getOriginalFilename() + "'");
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} catch (IOException e) {
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e.printStackTrace();
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}
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return "redirect:/uploadStatus";
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}
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@GetMapping("/uploadStatus")
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public String uploadStatus() {
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return "uploadStatus";
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}
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}

‎spring-boot-file-upload/src/main/resources/application.properties

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#http://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#common-application-properties
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#search multipart
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spring.http.multipart.max-file-size=2MB
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spring.http.multipart.max-request-size=10MB

‎spring-boot-file-upload/src/main/resources/logback.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<configuration>
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<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
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<layout class="ch.qos.logback.classic.PatternLayout">
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<Pattern>
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%d{yyyy-MM-dd HH:mm:ss} %-5level %logger{36} - %msg%n
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</Pattern>
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</layout>
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</appender>
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<logger name="org.springframework.web" level="error" additivity="false">
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<appender-ref ref="STDOUT"/>
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</logger>
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<logger name="com.neo" level="debug" additivity="false">
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<appender-ref ref="STDOUT"/>
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</logger>
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<root level="error">
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<appender-ref ref="STDOUT"/>
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</root>
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</configuration>

‎spring-boot-file-upload/src/main/resources/templates/upload.html

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<!DOCTYPE html>
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<html xmlns:th="http://www.thymeleaf.org">
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<body>
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<h1>Spring Boot file upload example</h1>
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<form method="POST" action="/upload" enctype="multipart/form-data">
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<input type="file" name="file" /><br/><br/>
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<input type="submit" value="Submit" />
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</form>
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</body>
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</html>

‎spring-boot-file-upload/src/main/resources/templates/uploadStatus.html

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<!DOCTYPE html>
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<html lang="en" xmlns:th="http://www.thymeleaf.org">
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<body>
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<h1>Spring Boot - Upload Status</h1>
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<div th:if="${message}">
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<h2 th:text="${message}"/>
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</div>
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</body>
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</html>

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