cannot convert from Map to Map

[yinowong]

这是JEECG框架的源码

try {
			//获取参数
			Map<String,Object> paramMap = req.getParameterMap();
			String op = req.getParameter("op");
			if(StringUtil.isEmpty(op)){
				op = AutoFormTemplateParseUtil.OP_VIEW;
			}
			Map<String, List<Map<String, Object>>> paras = new HashMap<String, List<Map<String, Object>>>();
			if(StringUtils.isNotBlank(autoForm.getFormName())){
				autoForm = this.systemService.findUniqueByProperty(AutoFormEntity.class, "formName", autoForm.getFormName());
				if(autoForm==null){
					return new ModelAndView("jeecg/cgform/autoform/autoForm-error").addObject("message", "表单信息获取失败！");
				}
			}else{
				return new ModelAndView("jeecg/cgform/autoform/autoForm-error").addObject("message", "formName不能为空！");
			}

			//根据formid查询表单的参数
			List<String> paramList = getFormParams(autoForm.getId());
			if(paramList!=null&¶mList.size()>0){
				for(String param:paramList){
					String paramValue = req.getParameter(param);
					if(paramValue==null){
						return new ModelAndView("jeecg/cgform/autoform/autoForm-error").addObject("message", "缺少表单参数："+param);
					}
				}
			}

前面这里 Map<String,Object> paramMap = req.getParameterMap();
报的 Type mismatch: cannot convert from Map<String,String[]> to Map<String,Object>
这是String[]转不了object？？但Object不是任何对象的父类吗？？

[如何治疗颈椎病]

Object是任何对象的父类，但是你用的是数组 ！需要使用Object[]

[rickylin86]

import java.util.HashMap;

public class Test{
	public static void main(String[] args){
		HashMap<String,String[]> map = new HashMap<>();
		HashMap map1 = map;
		HashMap<String,Object> map2 = map1;
	}
}

需要这样转换.对于泛型类是把整个对象作为整体,而不是里面value是否符合String[] > Object