如何获取泛型参数的类型

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

public class GenericTypeExample<T> {
    public void process(List<T> list) {
        // 获取方法对象
        Method method = null;
        try {
            method = GenericTypeExample.class.getMethod("process", List.class);
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }
        
        // 获取方法参数类型
        Type[] parameterTypes = method.getGenericParameterTypes();
        ParameterizedType parameterizedType = (ParameterizedType) parameterTypes[0];
        Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
        
        // 输出泛型参数类型
        for (Type type : actualTypeArguments) {
            System.out.println(type.getTypeName());
        }
    }
}

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

public class GenericTypeExample<T> {
    private List<T> list;
    
    public void process() {
        // 获取字段对象
        Field field = null;
        try {
            field = GenericTypeExample.class.getDeclaredField("list");
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        }
        
        // 获取字段类型
        Type fieldType = field.getGenericType();
        ParameterizedType parameterizedType = (ParameterizedType) fieldType;
        Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
        
        // 输出泛型参数类型
        for (Type type : actualTypeArguments) {
            System.out.println(type.getTypeName());
        }
    }
}