Apache Commons DBUtils Tutorial
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- DBUtils - Discussion
- DBUtils - Useful Resources
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- DBUtils - Using DataSource
- DBUtils - Custom Row Processor
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- DBUtils - MapListHandler Class
- DBUtils - ArrayListHandler Class
- DBUtils - BeanListHandler Class
- DBUtils - BeanHandler Class
- DBUtils - ResultSetHandler interface
- DBUtils - AsyncQueryRunner interface
- DBUtils - QueryRunner interface
- DBUtils - Delete Query
- DBUtils - Update Query
- DBUtils - Read Query
- DBUtils - Create Query
- DBUtils - First Application
- DBUtils - Environment Setup
- DBUtils - Overview
- DBUtils - Home
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DBUtils - Create Query
Apache Commons DBUtils - Create Query
The following example will demonstrate how to create a record using Insert query with the help of DBUtils. We will insert a record in Employees Table.
Syntax
The syntax to create a query is given below −
String insertQuery ="INSERT INTO employees(id,age,first,last) VALUES (?,?,?,?)"; int insertedRecords = queryRunner.update(conn, insertQuery,104,30, "Sohan","Kumar");
Where,
insertQuery − Insert query having placeholders.
queryRunner − QueryRunner object to insert employee object in database.
To understand the above-mentioned concepts related to DBUtils, let us write an example which will run an insert query. To write our example, let us create a sample apppcation.
Step | Description |
---|---|
1 | Update the file MainApp.java created under chapter | .
2 | Compile and run the apppcation as explained below. |
Following is the content of the Employee.java.
pubpc class Employee { private int id; private int age; private String first; private String last; pubpc int getId() { return id; } pubpc void setId(int id) { this.id = id; } pubpc int getAge() { return age; } pubpc void setAge(int age) { this.age = age; } pubpc String getFirst() { return first; } pubpc void setFirst(String first) { this.first = first; } pubpc String getLast() { return last; } pubpc void setLast(String last) { this.last = last; } }
Following is the content of the MainApp.java file.
import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import org.apache.commons.dbutils.DbUtils; import org.apache.commons.dbutils.QueryRunner; pubpc class MainApp { // JDBC driver name and database URL static final String JDBC_DRIVER = "com.mysql.jdbc.Driver"; static final String DB_URL = "jdbc:mysql://localhost:3306/emp"; // Database credentials static final String USER = "root"; static final String PASS = "admin"; pubpc static void main(String[] args) throws SQLException { Connection conn = null; QueryRunner queryRunner = new QueryRunner(); DbUtils.loadDriver(JDBC_DRIVER); conn = DriverManager.getConnection(DB_URL, USER, PASS); try { int insertedRecords = queryRunner.update(conn, "INSERT INTO employees(id,age,first,last) VALUES (?,?,?,?)", 104,30, "Sohan","Kumar"); System.out.println(insertedRecords + " record(s) inserted"); } finally { DbUtils.close(conn); } } }
Once you are done creating the source files, let us run the apppcation. If everything is fine with your apppcation, it will print the following message −
1 record(s) inserted.Advertisements