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Spring Framework - DefaultFormattingConversionService Examples

Spring Framework 

This example demonstrate usage of DefaultFormattingConversionService as ConversionService which invokes spring formatters registered by default. 

package com.logicbig.example;

import org.springframework.core.convert.ConversionService;
import org.springframework.format.support.DefaultFormattingConversionService;

import java.time.Instant;
import java.time.LocalDate;

public class DefaultFormattingConversionServiceExample {
    public static void main (String[] args) {

        ConversionService service =
                            new DefaultFormattingConversionService();

        //String to Instant
        Instant instant = service.convert("2016-11-15T01:12:05.695Z", Instant.class);
        System.out.println(instant);

        //Instant to String
        String convert = service.convert(instant, String.class);
        System.out.println(convert);

        LocalDate localDate = service.convert("11/13/16", LocalDate.class);
        System.out.println(localDate);
    }
}

Output

2016-11-15T01:12:05.695Z
2016-11-15T01:12:05.695Z
2016-11-13
Original Post




Using ConversionService in Spring container. 

package com.logicbig.example;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;

public class ExampleMain {
    public static void main(String[] args) {
        AnnotationConfigApplicationContext context = new
                AnnotationConfigApplicationContext(AppConfig.class);

        ClientBean clientBean = context.getBean(ClientBean.class);
        clientBean.showInstantValueAsString("2016-11-15T01:12:05.695Z");
    }
}

Output

2016-11-15T01:12:05.695Z
package com.logicbig.example;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.convert.ConversionService;

import java.time.Instant;

public class ClientBean {
    @Autowired
    private ConversionService conversionService;


    public void showInstantValueAsString(String instantString) {
        Instant instant = conversionService.convert(instantString, Instant.class);
        System.out.println(instant);
    }
}
package com.logicbig.example;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.support.DefaultConversionService;
import org.springframework.format.support.DefaultFormattingConversionService;

@Configuration
public class AppConfig {
    @Bean
    public ConversionService conversionService() {
        return new DefaultFormattingConversionService();
    }

    @Bean
    public ClientBean clientBean() {
        return new ClientBean();
    }
}
Original Post

See Also