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[Spring Boot] Writing a File Using Thymeleaf (HTML 파일로 저장하기)

날짜:


부제: Thymeleaf 이용해서 HTML 파일 저장하기



HTML 파일 형식의 보고서(Report)를 만들어야 해서
Spring Boot 에서 Thymeleaf 를 이용하여 HTML 파일을 저장하려 한다.

아래와 같이 작업을 했다.





디렉토리 구조




pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>kr.co._1004lucifer.test.tymeleaf</groupId>
    <artifactId>savefile</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>Save HTML File</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>





Java 소스

package kr.co._1004lucifer.test.tymeleaf.savefile;

import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;

@SpringBootTest
class ThymeleafFileWriterTest {

    @Autowired
    TemplateEngine templateEngine;

    /**
     * Thymeleaf를 이용해서 HTML 파일을 저장시키는 테스트
     */
    @Test
    public void writeThymeleaf2HtmlFile() throws IOException {
        String filepath = System.getProperty("user.home") + "/hello-thymeleaf.html";

        Context context = new Context();
        context.setVariable("title", "User Page");
        context.setVariable("name", "John Doe");
        Writer writer = new FileWriter(filepath);
        writer.write(templateEngine.process("sample.html", context));
        writer.close();

        File file = new File(filepath);
        Assertions.assertTrue(file.length() > 0);
        Assertions.assertTrue(file.delete());
    }
}





HTML 템플릿 파일

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.thymeleaf.org ">
<head>
    <title th:text="${title}">title</title>
</head>
<body>
Hello <span th:text="${name}">name</span>!
</body>
</html>



위의 테스트 코드는 github 저장소에 올려놓았다.
https://github.com/1004lucifer/Test_SpringBoot-Thymeleaf-Save-File

save, write, file
타임리프

참고
- https://jgalacambra.wordpress.com/2016/06/08/writing-a-file-using-thymeleaf/

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