How do I update records in the database using JdbcTemplate?

The example demonstrated below will show you how to use the JdbcTemplate.update() method for updating records in database. This method returns an integer value indicating number of records updated in the database when the query is executed.

package org.kodejava.example.spring.jdbc;

import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

import javax.sql.DataSource;
import java.sql.Types;
import java.util.Date;

public class UpdateDemo {
    public static final String DRIVER = "com.mysql.jdbc.Driver";
    public static final String URL = "jdbc:mysql://localhost/mediadb";
    public static final String USERNAME = "root";
    public static final String PASSWORD = "";

    public static final String QUERY =
            "UPDATE records SET title = ?, release_date = ? WHERE id = ?";

    private DataSource dataSource;

    public UpdateDemo(DataSource dataSource) {
        this.dataSource = dataSource;
    }

    public static void main(String[] args) {
        DataSource ds = getDataSource();
        UpdateDemo demo = new UpdateDemo(ds);

        Long id = 2L;
        String title = "The Beatles 1967 - 1970";
        Date releaseDate = new Date();
        demo.updateRecord(id, title, releaseDate);
    }

    public void updateRecord(Long id, String title, Date releaseDate) {
        //
        // Creates an instance of JdbcTemplate and set the DataSource.
        // We can use the template update() method to update records
        // in the database. Below we use an update() method that accepts
        // three parameters: the sql query, the parameter values and
        // the parameter data types.
        //
        JdbcTemplate template = new JdbcTemplate(this.dataSource);

        Object[] params = {title, releaseDate, id};
        int[] types = {Types.VARCHAR, Types.DATE, Types.BIGINT};

        int rows = template.update(UpdateDemo.QUERY, params, types);
        System.out.println(rows + " row(s) updated.");
    }

    /**
     * Returns a data source object.
     *
     * @return a DataSource.
     */
    public static DataSource getDataSource() {
        DriverManagerDataSource ds = new DriverManagerDataSource();
        ds.setDriverClassName(UpdateDemo.DRIVER);
        ds.setUrl(UpdateDemo.URL);
        ds.setUsername(UpdateDemo.USERNAME);
        ds.setPassword(UpdateDemo.PASSWORD);
        return ds;
    }
}
Wayan Saryada

Wayan Saryada

A programmer, runner, recreational diver, currently living in the island of Bali, Indonesia. Mostly programming in Java, creating web based application with Spring Framework, JPA, etc. If you need help on Java programming you can hire me on Fiverr.
Wayan Saryada

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