Spring Batch-Beispiel - MySQL-Datenbank in XML

id, user_login, password, age

'1','example','password','30'
'2','user_a','password','25'
'3','user_b','password','10'
'4','user_c','password','25'
'5','user_d','password','40'

package com.example;

public class User {

    int id;
    String username;
    String password;
    int age;

    //... getter and setter methods

}

package com.example;

import java.sql.ResultSet;
import java.sql.SQLException;
import org.springframework.jdbc.core.RowMapper;

public class UserRowMapper implements RowMapper {

    @Override
    public User mapRow(ResultSet rs, int rowNum) throws SQLException {

        User user = new User();

        user.setId(rs.getInt("id"));
        user.setUsername(rs.getString("user_login"));
        user.setPassword(rs.getString("user_pass"));
        user.setAge(rs.getInt("age"));

        return user;
    }

}

package com.example;

import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App {

  public static void main(String[] args) {
    App obj = new App();
    obj.run();
  }

  private void run() {

    String[] springConfig = { "spring/batch/jobs/job-extract-users.xml" };

    ApplicationContext context = new ClassPathXmlApplicationContext(springConfig);

    JobLauncher jobLauncher = (JobLauncher) context.getBean("jobLauncher");
    Job job = (Job) context.getBean("testJob");

    try {

        JobParameters param = new JobParametersBuilder().addString("age", "20").toJobParameters();

        JobExecution execution = jobLauncher.run(job, param);
        System.out.println("Exit Status : " + execution.getStatus());
        System.out.println("Exit Status : " + execution.getAllFailureExceptions());

    } catch (Exception e) {
        e.printStackTrace();
    }
    System.out.println("Done");

  }

}

    
        1
        example
        password
        30
    
    
        2
        user_a
        password
        25
    
    
        4
        user_c
        password
        25
    
    
        5
        user_d
        password
        40