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There is a newer version: 1.0.5

package com.binfast.adpter.core.paramconvert;

import com.alibaba.fastjson2.JSONArray;
import com.alibaba.fastjson2.JSONObject;
import com.binfast.adpter.core.JsonRequest;
import com.binfast.adpter.core.ParamsHandler;

import java.lang.reflect.Parameter;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class BeanGetter extends ParaGetter {
	
	private final Class beanClass;
	
	// 存放参数泛型，支持将 json 数组转化为带有泛型的 List，例如： List、List
	private final Class parameterizedType;
	
	public BeanGetter(Class beanClass, String parameterName, Parameter parameter) {
		super(parameterName, null);
		this.beanClass = beanClass;
		this.parameterizedType = getParameterizedType(parameter);
	}
	
	private Class getParameterizedType(Parameter parameter) {
		if (parameter != null) {
			Type type = parameter.getParameterizedType();
			if (type instanceof ParameterizedType) {
				Type[] ts = ((ParameterizedType)type).getActualTypeArguments();
				if (ts != null && ts.length > 0) {
					return ts[0] instanceof Class ? (Class)ts[0] : null;
				}
			}
		}
		return null;
	}
	
	@Override
	public T get(ParamsHandler c) {
		// 支持 json 数据请求注入 action 形参
		if (c.isJsonRequest()) {
			return resolveJson((JsonRequest)c.getRequest());
		} else {
			return c.getBean(beanClass, this.getParameterName(), true);
		}
	}
	
	private T resolveJson(JsonRequest req) {
		JSONObject jsonObj = req.getJSONObject();
		if (jsonObj == null) {
			return toList(req.getJSONArray());
		}
		
		String paraName = this.getParameterName();
		if (jsonObj.containsKey(paraName)) {
			// 存在与 action 形参名相同的 request 参数则使用其 value 值进行转换
			return jsonObj.getObject(paraName, beanClass);
		} else {
			// 否则使用整个请求中的 json 进行转换
			return jsonObj.toJavaObject(beanClass);
		}
	}
	
	@SuppressWarnings("unchecked")
	private T toList(JSONArray jsonArr) {
		if (jsonArr == null) {
			return null;
		}
		
		if (parameterizedType != null) {
			return (T) jsonArr.toJavaList(parameterizedType);
		} else {
			return (T) jsonArr.toJavaList(Object.class);
		}
	}
	
	@Override
	protected T to(String v) {
		return null;
	}
}