浅谈让@Value更方便的Spring自定义转换类

@Value("${pkslow.admin}")
private String admin;

package com.pkslow.cloud.rest.model;

public class Admin {
    private String name;
    private Integer age;
    private String email;

    public Admin(String name, Integer age, String email) {
        this.name = name;
        this.age = age;
        this.email = email;
    }
  //getter and setter
}

package com.pkslow.cloud.rest.model;

import org.springframework.core.convert.converter.Converter;

public class AdminConverter implements Converter<String, Admin> {
    @Override
    public Admin convert(String s) {
        String[] strings = s.split("\\|");
        return new Admin(strings[0], Integer.parseInt(strings[1]), strings[2]);
    }
}

package com.pkslow.cloud.rest.config;

import com.pkslow.cloud.rest.model.AdminConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.support.ConversionServiceFactoryBean;

import java.util.Collections;

@Configuration
public class AdminConversionServiceConfig {
    @Bean
    public ConversionServiceFactoryBean conversionService() {
        ConversionServiceFactoryBean factoryBean = new ConversionServiceFactoryBean();
        factoryBean.setConverters(Collections.singleton(new AdminConverter()));
        return factoryBean;
    }
}

package com.pkslow.cloud.rest;

import com.pkslow.cloud.rest.model.Admin;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class PkslowController {

    @Value("${pkslow.admin}")
    private Admin adminBean;

    @GetMapping("/getAdminBean")
    public Admin getAdminBean() {
        return adminBean;
    }
}