java的bean对象里面有一个其他对象,通过自定义注解序列化，请给出java代码

下面是一个示例代码：

public class Person {
    private String name;
    private int age;
    @SerializeAnnotation
    private Address address;

    // 构造函数、getter和setter方法省略

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public Address getAddress() {
        return address;
    }

    public void setAddress(Address address) {
        this.address = address;
    }
}

public class Address {
    private String city;
    private String street;

    // 构造函数、getter和setter方法省略

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public String getStreet() {
        return street;
    }

    public void setStreet(String street) {
        this.street = street;
    }
}

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface SerializeAnnotation {
}

public class Serializer {
    public String serialize(Object object) throws IllegalAccessException {
        Class<?> clazz = object.getClass();
        Field[] fields = clazz.getDeclaredFields();

        StringBuilder sb = new StringBuilder();
        sb.append("{");

        for (Field field : fields) {
            if (!field.isAccessible()) {
                field.setAccessible(true);
            }

            if (field.isAnnotationPresent(SerializeAnnotation.class)) {
                Object fieldValue = field.get(object);
                sb.append("\"");
                sb.append(field.getName());
                sb.append("\":");
                sb.append(serialize(fieldValue));
                sb.append(",");
            }
        }

        if (sb.charAt(sb.length() - 1) == ',') {
            sb.deleteCharAt(sb.length() - 1);
        }

        sb.append("}");

        return sb.toString();
    }

    private String serialize(Object object) {
        if (object instanceof String) {
            return "\"" + object.toString() + "\"";
        } else if (object instanceof Integer) {
            return object.toString();
        } else {
            try {
                return serialize(object);
            } catch (IllegalAccessException e) {
                e.printStackTrace();
                return "";
            }
        }
    }
}

在上面的示例代码中，`Person`类有一个`Address`对象，并且在`address`字段上使用了`SerializeAnnotation`注解。`Serializer`类是一个序列化工具类，它可以将标记了`SerializeAnnotation`注解的字段序列化为JSON字符串。在`serialize`方法中，如果需要序列化的对象是一个JavaBean，那么会递归调用`serialize`方法来进行序列化。注意，在`Address`类中并没有使用`SerializeAnnotation`注解，因此`Serializer`类不会将`Address`对象序列化为JSON字符串。