从POJO生成Map <String,String>

import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;

public class POJOToMapConverter {
    public static Map<String, String> convert(Object pojo) {
        Map<String, String> map = new HashMap<>();
        
        Class<?> clazz = pojo.getClass();
        Field[] fields = clazz.getDeclaredFields();
        
        for (Field field : fields) {
            field.setAccessible(true);
            String fieldName = field.getName();
            try {
                Object fieldValue = field.get(pojo);
                String fieldValueStr = String.valueOf(fieldValue);
                map.put(fieldName, fieldValueStr);
            } catch (IllegalAccessException e) {
                // 处理异常
            }
        }
        
        return map;
    }
}

public class Main {
    public static void main(String[] args) {
        // 创建一个POJO对象
        Person person = new Person("John", 25, "john@example.com");
        
        // 转换成Map
        Map<String, String> map = POJOToMapConverter.convert(person);
        
        // 输出Map内容
        for (Map.Entry<String, String> entry : map.entrySet()) {
            System.out.println(entry.getKey() + ": " + entry.getValue());
        }
    }
}

class Person {
    private String name;
    private int age;
    private String email;
    
    // 构造函数、getter和setter省略
    
    // 省略toString方法
}

name: John
age: 25
email: john@example.com