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https://github.com/simplydemo/json-sql-demo
This is easily access JSON messages through SQL query expressions.
https://github.com/simplydemo/json-sql-demo
Last synced: about 6 hours ago
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This is easily access JSON messages through SQL query expressions.
- Host: GitHub
- URL: https://github.com/simplydemo/json-sql-demo
- Owner: simplydemo
- License: apache-2.0
- Created: 2024-07-11T11:04:07.000Z (4 months ago)
- Default Branch: main
- Last Pushed: 2024-07-15T08:14:41.000Z (4 months ago)
- Last Synced: 2024-07-15T09:57:14.368Z (4 months ago)
- Language: Java
- Size: 20.5 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# json-sql-demo
This is easily access JSON messages through SQL query expressions.
## Usage
### Query Json and convert to Map type
```java
public void testCase() {
String json = """
{
"id": "668feca3b450e6d8f583b561",
"index": 0,
"guid": "704a409d-e95d-4aca-bd46-782d050a9b77",
"isActive": false,
"age": 39,
"name": "Long Phillips",
"email": "[email protected]",
"registered": "2022-07-18T04:35:17 -09:00"
}
""";
String sql = "select id, index, guide, isActive, age from USER";
SqlSession sqlSession = new SqlSession(new JsonQueryHandler("USER", json));
Map data = sqlSession.queryForObject(sql, Map.of());
System.out.println(data);
}
```
### Query Json and convert to List type
```java
public void testCase() {
String json = """
[
{
"id": "668ff4482965ffc5acb09c08",
"index": 2,
"guid": "dc9bb694-3a10-4005-9d91-c89bdca03ea3",
"isActive": true,
"age": 20,
"name": "Manuela Olson",
"email": "[email protected]",
"registered": "2017-06-27T04:40:15 -09:00"
},
{
"id": "668ff4482abed548eb94913f",
"index": 3,
"guid": "fb439ae2-5962-4eb9-8349-661687f3eb69",
"isActive": true,
"age": 31,
"name": "Rodgers Carr",
"email": "[email protected]",
"registered": "2019-01-30T03:59:21 -09:00"
}
]
""";
String sql = """
select id, index, guid, isActive, age,
name, email, registered
from user
where age = :age
""";
SqlSession sqlSession = new SqlSession(new JsonQueryHandler("user", json));
List> records = sqlSession.queryForList(sql, Map.of("age", 30));
records.forEach(System.out::println);
assertEquals(2, records.size());
}
```
### Get the name of json attributes
Get the names of json properties by identifying them according to the hierarchy.
```java
public void testCase() {
String json = """
{
"id": "668feca3b450e6d8f583b561",
"index": 0,
"guid": "704a409d-e95d-4aca-bd46-782d050a9b77",
"isActive": false,
"age": 39,
"name": "Long Phillips",
"email": "[email protected]",
"registered": "2022-07-18T04:35:17 -09:00",
"detail": {
"category": "issue",
"code": "APPLE101",
"communicationId": "1234abc01232a4012345678-1"
}
}
""";
String sql = "select id, guid, isActive, name, email from USER where id = '668feca3b450e6d8f583b561'";
SqlSession sqlSession = new SqlSession(new JsonQueryHandler("user", json));
System.out.println("keys: " + sqlSession.getKeys());
System.out.println("keys: " + sqlSession.getKeys(2));
}
```
## What to do First?
To use [json-sql](https://github.com/thenovaworks/json-sql.git), simply add a dependency to your Maven or Gradle project.
- Maven
```xml
io.github.thenovaworks
json-sql
1.0.0
```
- Gradle
```groovy
dependencies {
implementation 'io.github.thenovaworks:json-sql:1.0.0'
}
```
## References
- [json-sql](https://github.com/thenovaworks/json-sql.git)
- [mvn-repository](https://mvnrepository.com/)