Spring Batch — convert Date to another format

In this example, we’ll read the date field from the csv file using Spring XML config and parse and convert it to another format

pom.xml — All the dependencies required for the applications

<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/maven-v4_0_0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>com.mkyong.common</groupId>
 <artifactId>SpringExamples</artifactId>
 <packaging>jar</packaging>
 <version>1.0-SNAPSHOT</version>
 <name>SpringExamples</name>
 <url>http://maven.apache.org</url>

 <properties>
  <java.version>11</java.version>
  <maven.compiler.source>11</maven.compiler.source>
  <maven.compiler.target>11</maven.compiler.target>
 </properties>

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

  <!-- Spring framework -->
  <dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-core</artifactId>
   <version>5.3.37</version>
  </dependency>
  <dependency>
   <groupId>org.springframework</groupId>
   <artifactId>spring-context</artifactId>
   <version>5.3.37</version>
  </dependency>

 </dependencies>
</project>

Model

package com.mkyong.common;

public class Customer {

 private String date;

 public String getDate() {
  return date;
 }

 public void setDate(String date) {
  this.date = date;
 }

 @Override
 public String toString() {
  return "Customer [date=" + date + "]";
 }
}

PropertyEditorSupport.java

package com.mkyong.common;

import java.beans.PropertyEditorSupport;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Locale;

public class CustomLocalDateTimeEditor extends PropertyEditorSupport {

 public CustomLocalDateTimeEditor() {
 }

 private String parseText(String text) {
  String input = text.replace("  ", " ");
  Locale locale = new Locale("en", "US");
  
  DateTimeFormatter formatter = DateTimeFormatter
          .ofPattern("MMM d yyyy hh:mm:ss:SSSa")
          .withLocale( locale );
      LocalDateTime ldt = LocalDateTime.parse( input , formatter ) ;
      LocalDate ld = ldt.toLocalDate();
      String output = ld.format( DateTimeFormatter.BASIC_ISO_DATE ) ;
      System.out.println( output ) ;
      
  return output;
 }

 @Override
 public void setAsText(String text) throws IllegalArgumentException {
  setValue(parseText(text));
 }

 @Override
 public String getAsText() {
  String value = parseText(String.valueOf(getValue()));
  return (value != null ? value.toString() : "");
 }
}

MainApp.java

package com.mkyong.common;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App {
 public static void main(String[] args) {
  ApplicationContext context = new ClassPathXmlApplicationContext("SpringBeans.xml");
  Customer cust = (Customer) context.getBean("customer");
  System.out.println(cust);
 }
}

spring beans

<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

 <bean class="org.springframework.beans.factory.config.CustomEditorConfigurer">
  <property name="customEditors">
   <map>
    <entry key="java.lang.String" value="com.mkyong.common.CustomLocalDateTimeEditor" />
   </map>
  </property>
 </bean>

 <bean id="customer" class="com.mkyong.common.Customer">
  <property name="date" value="Apr  1 2022 12:00:00:000AM" />
 </bean>
</beans>

Output Logs —

20220401
Customer [date=20220401]

Reference —

https://mkyong.com/spring-batch/how-to-convert-date-in-beanwrapperfieldsetmapper/

How to setup LocalDateTime in Spring XML configuration

How to initialize a Java Date object in Spring xml configuration file?