java 代码片段【JAVA】

Posted 2021-05-08

package minipss.util;

import java.util.Calendar;
import java.util.Date;

import org.apache.commons.lang3.time.DateUtils;

public class DateUtil {

	public static Date endOfDay(Date d) {
		return DateUtils.addSeconds(
				DateUtils.addDays(DateUtils.truncate(d, Calendar.DATE), 1), -1);
	}
}

public class SimpleDateFormatDemo {
	public static void main(String[] args) {
		Date now = new Date();
		SimpleDateFormat sdf = new SimpleDateFormat("yyy年MM月dd日HH点mm分ss秒");
		String date = sdf.format(now);
		System.out.println(date);

		String fileString = System.getProperty("file.separator");
		System.out.println(fileString);
	}

package cn._520it.crm.util;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import cn._520it.crm.domain.Node;

public class TreeUtil {
	public static List<Node> getTree(List<Map> depts){
		Map<String,Node> tempMaps = new HashMap<String,Node>();
		Node tempNode;
		Map temp;
		for (int i = 0; i < depts.size(); i++) {
			temp = depts.get(i);
			tempNode = new Node();
			tempNode.setId(String.valueOf(temp.get("id")));
			tempNode.setText(String.valueOf(temp.get("text")));
			tempMaps.put(String.valueOf(temp.get("id")), tempNode);
		}
		List<Node> list = new ArrayList<Node>();
		Object obj;
		for (int i = 0; i < depts.size(); i++) {
			temp = depts.get(i);
			obj = temp.get("pid");
			if(obj==null){
				//没有pid,直接加入List<Node>
				list.add(tempMaps.get(String.valueOf(temp.get("id"))));
			}else{
				//把当前的节点添加带对应父节点下就可以了
				Node parentNode = tempMaps.get(String.valueOf(temp.get("pid")));
				Node childNode = tempMaps.get(String.valueOf(temp.get("id")));
				parentNode.getChildren().add(childNode);
			}
		}
		return list;
	}
}

package gener;

import java.io.File;
import java.io.FileWriter;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.QName;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

public class XmlUtil {

	public static void mergeXML(File xml, String appendingXml) throws Exception {
		SAXReader reader = new SAXReader();
		Document doc = reader.read(xml);

		Document flagment = DocumentHelper.parseText(appendingXml);
		Element flagEle = flagment.getRootElement();
		flagEle.setQName(new QName(flagEle.getName(), doc.getRootElement()
				.getNamespace()));
		if (flagEle.elements().size() > 0) {
			for (Object c : flagEle.elements()) {
				Element cel = (Element) c;
				cel.setQName(new QName(cel.getName(), flagEle.getNamespace()));
			}
		}
		doc.getRootElement().add(flagEle);

		XMLWriter writer = new XMLWriter(new FileWriter(xml));
		writer.write(doc.getRootElement());
		writer.close();
	}
}