hyeonga_code

JSON_11_JSON 파일 불러와서 필요한 데이터만 저장하기 본문

JSON

JSON_11_JSON 파일 불러와서 필요한 데이터만 저장하기

hyeonga 2023. 11. 4. 08:59
반응형

=== 기본 환경 ===

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 -->
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
<?xml version="1.0" encoding="UTF-8"?>
    <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 -->
        
        <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>
 

=====

 

3. 클래스 생성

 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
package com.basic.json;
 
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Reader;
 
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
 
public class JsonGetList {
    @SuppressWarnings("unchecked")
    public static void main(String[] args) throws IOException, ParseException {
 
        JSONParser parser = new JSONParser();
 
        // 경로에서 읽어오기
        Reader reader = new FileReader("H:\\TeamProject\\clothdata\\Woman_fleece1.json");
 
        // 배열 선언
        JSONArray getArray = (JSONArray) parser.parse(reader);
        JSONObject getObj = new JSONObject();
 
        // 다시 저장할 배열 선언
        JSONArray setArray1 = new JSONArray();
        JSONArray setArray2 = new JSONArray();
        
        JSONObject setObj = new JSONObject();
 
        if (getArray.size() > 0) {
            for (int i = 0; i < getArray.size(); i++) {
                getObj = (JSONObject) getArray.get(i);
 
                // 초기화 안하는 경우 같은 값만 들어갑니다.
                setObj = new JSONObject();
 
                // 필요한 데이터의 이름과 값을 지정하여 추가합니다.
                setObj.put("category3Name", (String) getObj.get("category3Name"));
                setObj.put("openDate", (String) getObj.get("openDate"));
                setObj.put("productName", (String) getObj.get("productName"));
                setObj.put("price", (String) getObj.get("price"));
                setObj.put("imageUrl", (String) getObj.get("imageUrl"));
                setObj.put("imgSz", (String) getObj.get("imgSz"));
                setObj.put("crUrl", (String) getObj.get("crUrl"));
                
                // 20개씩 따로 저장합니다.
                if(i<20) {
                    setArray1.add(setObj);
                } else {
                    setArray2.add(setObj);
                }
            }
        }
 
        try {
            // 파일로 저장합니다.
            for(int i=1; i<3; i++) {
                FileWriter file = new FileWriter("H:\\TeamProject\\JSON\\Woman_fleece1_" + i + ".json");
                
                if(i == 1) {
                    file.write(setArray1.toJSONString());
                } else {
                    file.write(setArray2.toJSONString());
                }
                
                file.flush();
                file.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
 

 

 

실행하기

반응형
저작자표시

'JSON' 카테고리의 다른 글

JSON_10_JSON 파일 읽어오기  (0) 2023.11.04
JSON_09_JSON ArrayList  (0) 2023.11.04
JSON_08_JSON 파일 만들기  (0) 2023.11.04
JSON_06_응답 결과를 자바스크립트 객체로 저장하기 28.09.59  (0) 2023.10.29
JSON_07_JSON 표기법 응답 생성 시 주의할 점  (0) 2023.10.28
'JSON' Related Articles more