这是我在某一个项目中的应用，在 spring boot 项目中利用反射获取 Bean 中的属性。
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| package com.lou.springboot;
import com.alibaba.fastjson2.JSON;
import lombok.Data;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import java.lang.reflect.Field;
@SpringBootApplication
public class Application {
public static void main(String[] args) throws NoSuchFieldException, IllegalAccessException {
ConfigurableApplicationContext configurableApplicationContext = SpringApplication.run(Application.class, args);
Run run = configurableApplicationContext.getBean(Run.class);
run.proc();
}
}
@Data
class Persons {
private String name1;
private Integer age1;
private String name2;
private Integer age2;
}
@Service
class PersonService {
public void proc(String cppMsg) throws NoSuchFieldException, IllegalAccessException {
Persons person = JSON.parseObject(cppMsg, Persons.class);
Field field = person.getClass().getDeclaredField("name1");
field.setAccessible(true);
System.out.println(field.get(person));
}
}
@Component
class Run {
@Autowired
private PersonService personService;
public void proc() throws NoSuchFieldException, IllegalAccessException {
personService.proc("{\"age1\":12,\"name1\":\"Antony\",\"age2\":22,\"name2\":\"tony\"}");
}
}
|
