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JSON_08_JSON 파일 만들기 본문

JSON

JSON_08_JSON 파일 만들기

hyeonga 2023. 11. 4. 05:59
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1. Spring Legacy Project 생성

- Project Name : jsonProject

- Template : Spring MVC Project

 

- Pacakge : com.basic.json

 

2. Java 버전 변경

- 프로젝트 우클릭 > properties > Proejct Facets

 

 

3. pom.xml 기본 설정 변경 & json-simple 라이브러리 추가

<!-- json-simple : JSON 작업을 위해 필요한 라이브러리 시작 -->
		<dependency>
			<groupId>com.googlecode.json-simple</groupId>
			<artifactId>json-simple</artifactId>
			<version>1.1.1</version>
		</dependency>
<!-- json-simple : JSON 작업을 위해 필요한 라이브러리 끝 -->
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<?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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.basic</groupId>
    <artifactId>json</artifactId>
    <name>jsonProject</name>
    <packaging>war</packaging>
    <version>1.0.0-BUILD-SNAPSHOT</version>
    <properties>
        <java-version>11</java-version>
        <org.springframework-version>5.3.27</org.springframework-version>
        <org.aspectj-version>1.9.19</org.aspectj-version>
        <org.slf4j-version>2.0.7</org.slf4j-version>
    </properties>
    <dependencies>
<!-- json-simple : JSON 작업을 위해 필요한 라이브러리 시작 -->
        <dependency>
            <groupId>com.googlecode.json-simple</groupId>
            <artifactId>json-simple</artifactId>
            <version>1.1.1</version>
        </dependency>
<!-- json-simple : JSON 작업을 위해 필요한 라이브러리 끝 -->
    
        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${org.springframework-version}</version>
            <exclusions>
                <!-- Exclude Commons Logging in favor of SLF4j -->
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                 </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${org.springframework-version}</version>
        </dependency>
                
        <!-- AspectJ -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>${org.aspectj-version}</version>
        </dependency>    
        
        <!-- Logging -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>${org.slf4j-version}</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>${org.slf4j-version}</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>${org.slf4j-version}</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.15</version>
            <exclusions>
                <exclusion>
                    <groupId>javax.mail</groupId>
                    <artifactId>mail</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>javax.jms</groupId>
                    <artifactId>jms</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.sun.jdmk</groupId>
                    <artifactId>jmxtools</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.sun.jmx</groupId>
                    <artifactId>jmxri</artifactId>
                </exclusion>
            </exclusions>
            <scope>runtime</scope>
        </dependency>
 
        <!-- @Inject -->
        <dependency>
            <groupId>javax.inject</groupId>
            <artifactId>javax.inject</artifactId>
            <version>1</version>
        </dependency>
                
        
        <!-- Servlet -->
<!-- Servlet : 기본값
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>jsp-api</artifactId>
            <version>2.1</version>
            <scope>provided</scope>
        </dependency>
-->
<!-- javax.servlet-api : servlet-api 대신 사용 -->
        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>4.0.0</version>
            <scope>provided</scope>
        </dependency>
        
<!-- javax.servlet.jsp-api : jsp-api 대신 사용 -->
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.3</version>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
    
        <!-- Test -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13.2</version>
            <scope>test</scope>
        </dependency>       
    <!-- project 기본 설정 끝 -->
         
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-eclipse-plugin</artifactId>
                <version>2.9</version>
                <configuration>
                    <additionalProjectnatures>
                        <projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
                    </additionalProjectnatures>
                    <additionalBuildcommands>
                        <buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand>
                    </additionalBuildcommands>
                    <downloadSources>true</downloadSources>
                    <downloadJavadocs>true</downloadJavadocs>
                </configuration>
            </plugin>
 
<!-- maven-compiler-plugin : 버전 변경 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.10.1</version>
                <configuration>
                    <source>11</source>
                    <target>11</target>
                    <compilerArgument>-Xlint:all</compilerArgument>
                    <showWarnings>true</showWarnings>
                    <showDeprecation>true</showDeprecation>
                </configuration>
            </plugin>
            
<!-- exec-maven-plugin : 버전 변경 -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>exec-maven-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>
                    <mainClass>org.test.int1.Main</mainClass>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>
 

 

 

4. JsonFile.java 클래스 생성

 

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package com.basic.json;
 
import java.io.FileWriter;
import java.io.IOException;
 
import org.json.simple.JSONObject;
 
public class JsonFile {
 
    @SuppressWarnings("unchecked")
    public static void main(String[] args) {
        
        // 객체 생성
        JSONObject obj = new JSONObject();
        
        // 데이터 삽입
        obj.put("data 1", "data 1_value 1");
        obj.put("data 2", "data 2_value 2");
        
        try {
            // 객체 생성 + 경로&파일 이름 지정
            FileWriter file = new FileWriter("H:\\TeamProject\\JSON\\jsonSample.json");
            
            // 메소드를 호출하여 얻은 문자열을 저장
            file.write(obj.toJSONString());
            
            // 저장한 문자열을 파일에 작성
            file.flush();
            
            // 파일을 종료
            file.close();
        } catch(IOException e) {
            e.printStackTrace();
        }
        // 객체 확인
        System.out.print(obj);
    }
}
 

 

 

 

5. 실행하기

Run As > Java Application

 

> 경로에 파일생성

 

> 파일 내용

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