The method queryForInt(String) is undefined for the type JdbcTemplate

Question

I'm trying to execute a sql query and try to get its value in a integer variable, but I'm getting a compile time error saying

The method queryForInt(String) is undefined for the type JdbcTemplate

My code is correct I think, so I have problem in my pom file.

my pom.xml file:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>sql</groupId>
  <artifactId>sql</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>sql</name>
  <url>http://maven.apache.org</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <spring.version>4.1.0.RELEASE</spring.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>



   <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>${spring.version}</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>${spring.version}</version>
        </dependency>




    <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>4.2.0.RELEASE</version>
</dependency>



    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.9</version>
    </dependency>


  </dependencies>
</project>

my app.java file:

package sql.sql;


import java.sql.ResultSet;
import java.sql.SQLException;
//import org.springframework.jdbc.core;
import java.util.List;

import javax.sql.DataSource;

//import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jdbc.core.JdbcTemplate;


public class App 
{
    public static void main( String[] args )
    {
        //DataSource dataSource = null ;
        ApplicationContext context = 
                new ClassPathXmlApplicationContext("web.xml");
        DataSource obj = (DataSource) context.getBean("dataSource");
         JdbcTemplate jdbcTemplateObject = new JdbcTemplate(obj);


        String SQL1 = "select count(*) from issues";
        int row1 = jdbcTemplateObject.queryForInt(SQL1);
        System.out.println(row1);

        System.out.println( "Hello World!" );
    }
}

Answer 1

The method JdbcTemplate.queryForInt was deprecated in Spring 3.2.2 and it was removed in Spring 4.2.0.

There is actually a dependency conflict in your pom.xml: you depend on Spring version 4.1.0.RELEASE and 4.2.0.RELEASE (for spring-jdbc). Maven solves that conflict by using version 4.2.0.RELEASE for all Spring dependencies, so that is why the method queryForInt is not available.

You can :

• Downgrade to Spring 4.1.0.RELEASE for all your dependencies
• Upgrade to Spring 4.2.0.RELEASE and use instead queryForObject(String sql, Class<T> requiredType) with Integer.class as requiredType.

I recommend you to upgrade as it is not a good practice to continue using deprecated APIs.

See this question for more info.