How to integrate JSON File using Java
Learn how to quickly and efficiently connect JSON File with Java for smooth data access.
Read and write JSON files effortlessly. Extract, filter, and sync JSON from local files and strings for analytics, reporting, and data pipelines — almost no coding required. You can do it all using the high-performance JSON File ODBC Driver for Java (often referred to as the JSON File Connector). How is this possible? You will connect to the ZappySys Data Gateway, which acts as a seamless bridge between the ODBC and JDBC layers. We'll walk you through the entire setup.
Ready to dive in? Download the product to jump right in, or follow the step-by-step guide below to see how it works.
Create data source in ZappySys Data Gateway
In this section we will create a data source for JSON File in the Data Gateway. Let's follow these steps to accomplish that:
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Download and install ODBC PowerPack (if you haven't already).
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Search for
gatewayin the Windows Start Menu and open ZappySys Data Gateway Configuration:
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Go to the Users tab and follow these steps to add a Data Gateway user:
- Click the Add button
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In the Login field enter a username, e.g.,
john - Then enter a Password
- Check the Is Administrator checkbox
- Click OK to save
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Now we are ready to add a data source:
- Click the Add button
- Give the Data source a name (have it handy for later)
- Then select Native - ZappySys JSON Driver
- Finally, click OK
JsonFileDSNZappySys JSON Driver
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You can use pass single file or multiple file path using wildcard pattern in path and you can use select single file by clicking [...] path button or multiple file using wildcard pattern in path.
Note: If you want to operation with multiple files then use wild card pattern as below (when you use wild card pattern in source path then system will treat target path as folder regardless you end with slash) C:\SSIS\Test\reponse.json (will read only single reponse.json file) C:\SSIS\Test\j*.json (all files starting with file name) C:\SSIS\Test\*.json (all files with .json Extension and located under folder subfolder)
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Now enter JSONPath expression in Array Filter textbox to extract only specific part of JSON file as below ($.value[*] will get content of value attribute from JSON document. Value attribute is array of JSON documents so we have to use [*] to indicate we want all records of that array)
NOTE: Here, We are using our desired filter, but you need to select your desired filter based on your requirement.
Click on Test Connection button to view whether the Test Connection is SUCCESSFUL or Not.$.value[*]
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Once you configured a data source, you can preview data. Hit Preview tab, and use similar settings to preview data:
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Click OK to finish creating the data source
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That's it; we are done. In a few clicks we configured the call to JSON File using ZappySys JSON File Connector
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Once done, go to the Network Settings tab and Add a firewall rule for inbound traffic:
- This will initially allow all inbound traffic.
- Click Edit IP filters to restrict access to specific IP addresses or ranges.
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Crucial Step: After creating or modifying the data source, you must:
- Click the Save button to persist your changes.
- Hit Yes when prompted to restart the Data Gateway service.
This ensures all changes are properly applied:
Skipping this step may cause the new settings to fail, preventing you from connecting to the data source.
Read data in Java from the DSN
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Java code to get the data:
"jdbc:sqlserver://localhost:5000;databasename=JsonFileDSN;user=john;password=test"
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When you run the code it will make the API call and read the data:
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Here is Java program's code in text format:
//Step-1: Install ZappySys ODBC PowerPack and Configure Data Gateway //Step-2:Assuming the Microsoft SQL Server JDBC Driver is in below folder //C:\Program Files\Microsoft Jdbc Driver 6.0 for SQL Server\sqljdbc_6.0\enu\auth\x64 package padaone; import java.sql.*; public class zappy { public static void main(String[] args) { // Create a variable for the connection string. String connectionUrl = "jdbc:sqlserver://localhost:5000;databasename=JsonFileDSN;user=test;password=test"; // Declare the JDBC objects. Connection con = null; Statement stmt = null; ResultSet rs = null; try { // Establish the connection. Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); con = DriverManager.getConnection(connectionUrl); // Create and execute an SQL statement that returns some data. String SQL = "SELECT Country , SUM(UnitPrice * Quantity) Total " + "FROM value " + "GROUP BY Country " + "WITH (SRC='https://services.odata.org/V3/Northwind/Northwind.svc/Invoices?$format=json')"; stmt = con.createStatement(); rs = stmt.executeQuery(SQL); // Iterate through the data in the result set and display it. while (rs.next()) { System.out.println(rs.getString(1) + " " + rs.getString(2)); } } // Handle any errors that may have occurred. catch (Exception e) { e.printStackTrace(); } finally { if (rs != null) try { rs.close(); } catch (Exception e) {} if (stmt != null) try { stmt.close(); } catch (Exception e) {} if (con != null) try { con.close(); } catch (Exception e) {} } } }
Conclusion
In this article we showed you how to connect to JSON File in Java and integrate data without writing complex code — all of this was powered by JSON File ODBC Driver.
Download ODBC PowerPack now or ping us via chat if you have any questions or are looking for a specific feature (you can also reach out to us by submitting a ticket):
