console.log(new Date(value1.value),'shijian') 转换不了啊

`console.log(new Date(value1.value),'shijian')` 这段代码试图将一个变量 `value1.value` 的内容转换为 JavaScript 的 `Date` 对象，并将其与字符串 "shijian" 同时输出到控制台。如果遇到问题，可能是以下几个原因：

1. **数据格式不正确**：`value1.value` 的内容不是有效的日期字符串格式（如 "yyyy-mm-dd" 或 "mm/dd/yyyy" 等）。`new Date()` 只能解析特定格式的日期。你需要先检查 `value1.value` 是否包含有效的日期信息。

2. **JavaScript 时间戳**：如果你的 `value1.value` 是一个数字（表示从1970-01-01 00:00:00 UTC 的毫秒数），需要加上 `Date` 构造函数：

   const timestamp = parseInt(value1.value);
   console.log(new Date(timestamp), 'shijian');

3. **其他非日期数据**：如果不是日期或时间戳，尝试转换可能会失败。确保 `value1.value` 代表的是某个日期或者与日期相关的值。

如果以上情况都不是问题，还可能存在编码问题导致的字符串解析错误。建议查看 `value1.value` 的具体内容以及转换过程中是否有异常抛出。

相关问题

function delSameObjValue(arr, resultNum, keyName, keyValue) { const warp = new Map(); arr.forEach(i => { let str = keyName.map(v => i[v]).join('_'); i[resultNum] = keyValue.reduce((p, c) => p += i[c], 0); warp.has(str) ? warp.get(str)[resultNum] += i[resultNum] : warp.set(str, i); }); return Array.from(warp).map(([, v]) => v); } var result=delSameObjValue(json_shijian,'resultNum',['日期'],['时间']) console.log(result)

这是一个关于 JavaScript 的函数的问题，我可以回答。这个函数的作用是去除数组中重复的对象，并根据指定的属性值进行合并。具体实现是通过 Map 数据结构来存储对象，然后根据指定的属性值进行合并。最后返回合并后的数组。

翻译代码：package com.action; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; import java.util.Map; import org.apache.struts2.ServletActionContext; import com.dao.TGonggaoDAO; import com.model.TAdmin; import com.model.TGonggao; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionSupport; public class gonggaoAction extends ActionSupport { private Integer id; private String biaoti; private String neirong; private String shijian; private String message; private String path; private TGonggaoDAO gonggaoDAO; public String gonggaoAdd() { TGonggao gonggao=new TGonggao(); gonggao.setBiaoti(biaoti); gonggao.setNeirong(neirong); gonggao.setShijian(new SimpleDateFormat("yyyy-MM-dd HH:mm").format(new Date())); gonggaoDAO.save(gonggao); this.setMessage("公告添加完毕"); this.setPath("gonggaoMana.action"); return "succeed"; } public String gonggaoMana() { List gonggaoList =gonggaoDAO.findAll(); Map request=(Map)ServletActionContext.getContext().get("request"); request.put("gonggaoList", gonggaoList); return ActionSupport.SUCCESS; } public String gonggaoDel() { TGonggao gonggao=gonggaoDAO.findById(id); gonggaoDAO.delete(gonggao); this.setMessage("公告删除完毕"); this.setPath("gonggaoMana.action"); return "succeed"; } public String gonggaoDetailHou() { TGonggao gonggao=gonggaoDAO.findById(id); Map request=(Map)ServletActionContext.getContext().get("request"); request.put("gonggao", gonggao); return ActionSupport.SUCCESS; } public String gonggaoAll() { List gonggaoList =gonggaoDAO.findAll(); Map request=(Map)ServletActionContext.getContext().get("request"); request.put("gonggaoList", gonggaoList); return ActionSupport.SUCCESS; } public String gonggaoDetailQian() { TGonggao gonggao=gonggaoDAO.findById(id); Map request=(Map)ServletActionContext.getContext().get("request"); request.put("gonggao", gonggao); return ActionSupport.SUCCESS; } public String getBiaoti() { return biaoti; } public void setBiaoti(String biaoti) { this.biaoti = biaoti; } public TGonggaoDAO getGonggaoDAO() { return gonggaoDAO; } public void setGonggaoDAO(TGonggaoDAO gonggaoDAO) { this.gonggaoDAO = gonggaoDAO; } public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } public String getNeirong() { return neirong; } public void setNeirong(String neirong) { this.neirong = neirong; } public String getPath() { return path; } public void setPath(String path) { this.path = path; } public String getShijian() { return shijian; } public void setShijian(String shijian) { this.shijian = shijian; } }

这是一个 Java 的 Struts2 框架的 Action 类，包含了公告的增删改查等方法。具体代码如下：

package com.action;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;

import org.apache.struts2.ServletActionContext;

import com.dao.TGonggaoDAO;
import com.model.TAdmin;
import com.model.TGonggao;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class gonggaoAction extends ActionSupport {
	private Integer id;
	private String biaoti;
	private String neirong;
	private String shijian;

	private String message;
	private String path;

	private TGonggaoDAO gonggaoDAO;

	public String gonggaoAdd() {
		TGonggao gonggao=new TGonggao();
		gonggao.setBiaoti(biaoti);
		gonggao.setNeirong(neirong);
		gonggao.setShijian(new SimpleDateFormat("yyyy-MM-dd HH:mm").format(new Date()));
		gonggaoDAO.save(gonggao);
		this.setMessage("公告添加完毕");
		this.setPath("gonggaoMana.action");
		return "succeed";
	}

	public String gonggaoMana() {
		List gonggaoList =gonggaoDAO.findAll();
		Map request=(Map)ServletActionContext.getContext().get("request");
		request.put("gonggaoList", gonggaoList);
		return ActionSupport.SUCCESS;
	}

	public String gonggaoDel() {
		TGonggao gonggao=gonggaoDAO.findById(id);
		gonggaoDAO.delete(gonggao);
		this.setMessage("公告删除完毕");
		this.setPath("gonggaoMana.action");
		return "succeed";
	}

	public String gonggaoDetailHou() {
		TGonggao gonggao=gonggaoDAO.findById(id);
		Map request=(Map)ServletActionContext.getContext().get("request");
		request.put("gonggao", gonggao);
		return ActionSupport.SUCCESS;
	}

	public String gonggaoAll() {
		List gonggaoList =gonggaoDAO.findAll();
		Map request=(Map)ServletActionContext.getContext().get("request");
		request.put("gonggaoList", gonggaoList);
		return ActionSupport.SUCCESS;
	}

	public String gonggaoDetailQian() {
		TGonggao gonggao=gonggaoDAO.findById(id);
		Map request=(Map)ServletActionContext.getContext().get("request");
		request.put("gonggao", gonggao);
		return ActionSupport.SUCCESS;
	}

	public String getBiaoti() {
		return biaoti;
	}

	public void setBiaoti(String biaoti) {
		this.biaoti = biaoti;
	}

	public TGonggaoDAO getGonggaoDAO() {
		return gonggaoDAO;
	}

	public void setGonggaoDAO(TGonggaoDAO gonggaoDAO) {
		this.gonggaoDAO = gonggaoDAO;
	}

	public Integer getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getMessage() {
		return message;
	}

	public void setMessage(String message) {
		this.message = message;
	}

	public String getNeirong() {
		return neirong;
	}

	public void setNeirong(String neirong) {
		this.neirong = neirong;
	}

	public String getPath() {
		return path;
	}

	public void setPath(String path) {
		this.path = path;
	}

	public String getShijian() {
		return shijian;
	}

	public void setShijian(String shijian) {
		this.shijian = shijian;
	}
}