用户管理servlet（Dm学习笔记）

其他 2018-11-10 08:40:52 阅读次数: 0
版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/lv_yishi/article/details/78889638

显示用户信息：

package gz.itcast.contactSys_web.servlet;

import gz.itcast.contactSys_web.dao.ContactDao;
import gz.itcast.contactSys_web.dao.impl.ContactDaoImpl;
import gz.itcast.contactSys_web.entity.Contact;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * 显示所有联系人的逻辑
 * @author APPle
 *
 */
public class ListContactServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		//1.从xml中读取出联系人数据
		ContactDao dao = new ContactDaoImpl();
		List<Contact> list = dao.findAll();
		
		//2.显示到浏览器
		response.setContentType("text/html;charset=utf-8");
		PrintWriter writer = response.getWriter();
		
		String html = "";
		
		//shift+alt+A   ^(.*)$  \1";
		html += "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>";
		html += "<html xmlns='http://www.w3.org/1999/xhtml'>";
		html += "<head>";
		html += "<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />";
		html += "<title>查询所有联系人</title>";
		html += "<style type='text/css'>";
		html += "	table td{";
		html += "		/*文字居中*/";
		html += "		text-align:center;";
		html += "	}";
		html += "	";
		html += "	/*合并表格的边框*/";
		html += "	table{";
		html += "		border-collapse:collapse;";
		html += "	}";
		html += "</style>";
		html += "</head>";
		html += "";
		html += "<body>";
		html += "<center><h3>查询所有联系人</h3></center>";
		html += "<table align='center' border='1' width='800px'>";
		html += "	<tr>";
		html += "    	<th>编号</th>";
		html += "        <th>姓名</th>";
		html += "        <th>性别</th>";
		html += "        <th>年龄</th>";
		html += "        <th>电话</th>";
		html += "        <th>邮箱</th>";
		html += "        <th>QQ</th>";
		html += "        <th>操作</th>";
		html += "    </tr>";
		if(list!=null){
			for (Contact contact : list) {
				html += "    <tr>";
				html += "    	<td>"+contact.getId()+"</td>";
				html += "        <td>"+contact.getName()+"</td>";
				html += "        <td>"+contact.getGender()+"</td>";
				html += "        <td>"+contact.getAge()+"</td>";
				html += "        <td>"+contact.getPhone()+"</td>";
				html += "        <td>"+contact.getEmail()+"</td>";
				html += "        <td>"+contact.getQq()+"</td>";																													//火狐以get方式提交参数，而这个参数就会提交两次				
				html += "        <td><a href='"+request.getContextPath()+"/QueryContactServlet?id="+contact.getId()+"'>修改</a> <a href='"+request.getContextPath()+"/DeleteContactServlet?id="+contact.getId()+"'>删除</a></td>";
				html += "    </tr>";
			}
		}
		html += "    <tr>";
		html += "    	<td colspan='8' align='center'><a href='"+request.getContextPath()+"/addContact.html'>[添加联系人]</a></td>";
		html += "    </tr>";
		html += "</table>";
		html += "</body>";
		html += "</html>";

		
		writer.write(html);
		
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

}
添加联系人： 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>添加联系人</title>
</head>

<body>
<center><h3>添加联系人</h3></center>
<form action="/contactSys_web/AddContactServlet" method="post">
<table align="center" border="1" width="300px">
    <tr>
    	<th>姓名</th>
        <td><input type="text" name="name"/></td>
    </tr>
    <tr>
    	<th>性别</th>
        <td>
        <input type="radio" name="gender" value="男"/>男
        <input type="radio" name="gender" value="女"/>女
        </td>
    </tr>
    <tr>
    	<th>年龄</th>
        <td><input type="text" name="age"/></td>
    </tr>
    <tr>
    	<th>电话</th>
        <td><input type="text" name="phone"/></td>
    </tr>
    <tr>
    	<th>邮箱</th>
        <td><input type="text" name="email"/></td>
    </tr>
    <tr>
    	<th>QQ</th>
        <td><input type="text" name="qq"/></td>
    </tr>
    <tr>
        <td colspan="2" align="center">
        <input type="submit" value="保存"/> 
        <input type="reset" value="重置"/></td>
    </tr>
</table>
</form>
</body>
</html>
接收添加来的信息： 

package gz.itcast.contactSys_web.servlet;

import gz.itcast.contactSys_web.dao.ContactDao;
import gz.itcast.contactSys_web.dao.impl.ContactDaoImpl;
import gz.itcast.contactSys_web.entity.Contact;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * 添加联系人的逻辑
 * @author APPle
 *
 */
public class AddContactServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		//1.接收参数
		String name = request.getParameter("name");
		String gender = request.getParameter("gender");
		String age = request.getParameter("age");
		String phone = request.getParameter("phone");
		String email = request.getParameter("email");
		String qq = request.getParameter("qq");
		
		//封装成Contact对象
		Contact contact = new Contact();
		contact.setName(name);
		contact.setGender(gender);
		contact.setAge(Integer.parseInt(age));
		contact.setPhone(phone);
		contact.setEmail(email);
		contact.setQq(qq);
		
		//2.调用dao类的添加联系人的方法
		ContactDao dao = new ContactDaoImpl();
		dao.addContact(contact);
		
		//3.跳转到查询联系人的页面
		response.sendRedirect(request.getContextPath()+"/ListContactServlet");
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

}

修改联系人页面： 

package gz.itcast.contactSys_web.servlet;

import gz.itcast.contactSys_web.dao.ContactDao;
import gz.itcast.contactSys_web.dao.impl.ContactDaoImpl;
import gz.itcast.contactSys_web.entity.Contact;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * 修改前查询联系人的逻辑
 * @author APPle
 *
 */
public class QueryContactServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		//1.接收id
		String id = request.getParameter("id");
		
		//2.调用dao根据id查询联系人的方法
		ContactDao dao = new ContactDaoImpl();
		Contact contact = dao.findById(id);
		
		//3.把联系人显示到浏览器中
		response.setContentType("text/html;charset=utf-8");
		PrintWriter writer = response.getWriter();
		
		String html = "";
		
		html += "<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.0 Transitional//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd'>";
		html += "<html xmlns='http://www.w3.org/1999/xhtml'>";
		html += "<head>";
		html += "<meta http-equiv='Content-Type' content='text/html; charset=utf-8' />";
		html += "<title>修改联系人</title>";
		html += "</head>";
		html += "";
		html += "<body>";
		html += "<center><h3>修改联系人</h3></center>";
		html += "<form action='"+request.getContextPath()+"/UpdateContactServlet' method='post'>";
		//注意：添加id的隐藏域
		html += "<input type='hidden' name='id' value='"+contact.getId()+"'/>";
		html += "<table align='center' border='1' width='300px'>";
		html += "    <tr>";
		html += "    	<th>姓名</th>";
		html += "        <td><input type='text' name='name' value='"+contact.getName()+"'/></td>";
		html += "    </tr>";
		html += "    <tr>";
		html += "    	<th>性别</th>";
		html += "        <td>";
		
		if(contact.getGender().equals("男")){
			html += "        <input type='radio' name='gender' value='男' checked='checked'/>男";
			html += "        <input type='radio' name='gender' value='女'/>女";
		}else if(contact.getGender().equals("女")){
			html += "        <input type='radio' name='gender' value='男'/>男";
			html += "        <input type='radio' name='gender' value='女' checked='checked'/>女";
		}else{
			html += "        <input type='radio' name='gender' value='男' checked='checked'/>男";
			html += "        <input type='radio' name='gender' value='女'/>女";
		}
	
		html += "        </td>";
		html += "    </tr>";
		html += "    <tr>";
		html += "    	<th>年龄</th>";
		html += "        <td><input type='text' name='age' value='"+contact.getAge()+"'/></td>";
		html += "    </tr>";
		html += "    <tr>";
		html += "    	<th>电话</th>";
		html += "        <td><input type='text' name='phone' value='"+contact.getPhone()+"'/></td>";
		html += "    </tr>";
		html += "    <tr>";
		html += "    	<th>邮箱</th>";
		html += "        <td><input type='text' name='email' value='"+contact.getEmail()+"'/></td>";
		html += "    </tr>";
		html += "    <tr>";
		html += "    	<th>QQ</th>";
		html += "        <td><input type='text' name='qq' value='"+contact.getQq()+"'/></td>";
		html += "    </tr>";
		html += "    <tr>";
		html += "        <td colspan='2' align='center'>";
		html += "        <input type='submit' value='保存'/> ";
		html += "        <input type='reset' value='重置'/></td>";
		html += "    </tr>";
		html += "</table>";
		html += "</form>";
		html += "</body>";
		html += "</html>";

		
		
		writer.write(html);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

}

接收修改联系人信息： 

package gz.itcast.contactSys_web.servlet;

import gz.itcast.contactSys_web.dao.ContactDao;
import gz.itcast.contactSys_web.dao.impl.ContactDaoImpl;
import gz.itcast.contactSys_web.entity.Contact;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * 修改联系人的逻辑
 * @author APPle
 *
 */
public class UpdateContactServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		//1.接收参数
		String id = request.getParameter("id");
		String name = request.getParameter("name");
		String gender = request.getParameter("gender");
		String age = request.getParameter("age");
		String phone = request.getParameter("phone");
		String email = request.getParameter("email");
		String qq = request.getParameter("qq");
		
		//封装成Contact对象
		Contact contact = new Contact();
		contact.setId(id);
		contact.setName(name);
		contact.setGender(gender);
		contact.setAge(Integer.parseInt(age));
		contact.setPhone(phone);
		contact.setEmail(email);
		contact.setQq(qq);
		
		//2.调用dao修改联系人的方法
		ContactDao dao = new ContactDaoImpl();
		dao.updateContact(contact);
		
		//3.跳转到查询联系人的页面
		response.sendRedirect(request.getContextPath()+"/ListContactServlet");
		
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

}

删除联系人： 

package gz.itcast.contactSys_web.servlet;

import gz.itcast.contactSys_web.dao.ContactDao;
import gz.itcast.contactSys_web.dao.impl.ContactDaoImpl;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * 删除联系人的逻辑
 * @author APPle
 *
 */
public class DeleteContactServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		//在火狐浏览器中以Get方式提交带参数的数据，会重复提交两次。
		System.out.println("删除联系人");
		//1.接收id
		String id = request.getParameter("id");
		
		//2.调用dao删除联系人的方法
		ContactDao dao = new ContactDaoImpl();
		dao.deleteContact(id);
		
		//3.跳转到查询联系人的页面
		response.sendRedirect(request.getContextPath()+"/ListContactServlet");
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

}

方法的接口： 

package gz.itcast.contactSys_web.dao;

import gz.itcast.contactSys_web.entity.Contact;

import java.util.List;

/**
 * 联系人的DAO接口
 * @author APPle
 *
 */
public interface ContactDao {
	public void addContact(Contact contact);//添加联系人
	public void updateContact(Contact contact);//修改联系人
	public void deleteContact(String id);//删除联系人
	public List<Contact> findAll();  //查询所有联系人
	public Contact findById(String id);//根据编号查询联系人
}

接口的实现： 

package gz.itcast.contactSys_web.dao.impl;

import gz.itcast.contactSys_web.dao.ContactDao;
import gz.itcast.contactSys_web.entity.Contact;
import gz.itcast.contactSys_web.util.XMLUtil;

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;

public class ContactDaoImpl implements ContactDao {

	/**
	 * 添加联系人
	 */
	public void addContact(Contact contact) {
		try {
			File file = new File("d:/contact.xml");
			Document doc = null;
			Element rootElem = null;
			if(!file.exists()){
				/**
				 * 需求： 把contact对象保存到xml文件中
				 */
				//如果没有xml文件，则创建xml文件
				doc = DocumentHelper.createDocument();
				//创建根标签
				rootElem = doc.addElement("contactList");
			}else{
				//如果有xml文件，则读取xml文件
				doc = XMLUtil.getDocument();
				//如果有xml文件，读取根标签
				rootElem = doc.getRootElement();
			}

			//添加contact标签
			/**
			 * <contact id="1">
					<name>eric</name>
					<gender>男</gender>
					<age>20</age>
					<phone>1343333</phone>
					<email>[email protected]</email>
					<qq>554444</qq>
				</contact>
			 */
			Element contactElem = rootElem.addElement("contact");
			
			/**
			 * 由系统自动生成随机且唯一的ID值，赋值给联系人
			 */
			String uuid = UUID.randomUUID().toString().replace("-","");
			
			contactElem.addAttribute("id", uuid);
			contactElem.addElement("name").setText(contact.getName());
			contactElem.addElement("gender").setText(contact.getGender());
			contactElem.addElement("age").setText(contact.getAge()+"");
			contactElem.addElement("phone").setText(contact.getPhone());
			contactElem.addElement("email").setText(contact.getEmail());
			contactElem.addElement("qq").setText(contact.getQq());
			
			//把Document写出到xml文件
			XMLUtil.write2xml(doc);
		} catch (Exception e) {
			e.printStackTrace();
			throw new RuntimeException(e);
		}
	}

	/**
	 * 删除联系人
	 */
	public void deleteContact(String id) {
		try {
			//1.读取xml文件
			Document doc = XMLUtil.getDocument();
			//2.查询需要删除id的contact
			Element contactElem = (Element)doc.selectSingleNode("//contact[@id='"+id+"']");
			//删除标签
			if(contactElem!=null){   //火狐会调用两次id，第一次有值，第二次为null
				contactElem.detach();
			}
			
			//3.把Document写出到xml文件
			XMLUtil.write2xml(doc);
		} catch (Exception e) {
			e.printStackTrace();
			throw new RuntimeException(e);
		}
	}

	/**
	 * 查询所有联系人
	 */
	public List<Contact> findAll() {
		//1.读取xml文件
		Document doc = XMLUtil.getDocument();
		
		//2.创建List对象
		List<Contact> list = new ArrayList<Contact>();
		//3.读取contact标签
		List<Element> conList = (List<Element>)doc.selectNodes("//contact");
		for(Element e:conList){
			//创建COntact对象
			Contact c = new Contact();
			c.setId(e.attributeValue("id"));
			c.setName(e.elementText("name"));
			c.setGender(e.elementText("gender"));
			c.setAge(Integer.parseInt(e.elementText("age")));
			c.setPhone(e.elementText("phone"));
			c.setEmail(e.elementText("email"));
			c.setQq(e.elementText("qq"));
			//把Contact放入list中
			list.add(c);
		}
		return list;
	}

	/**
	 * 根据编号查询联系人
	 */
	public Contact findById(String id) {
		Document doc = XMLUtil.getDocument();
		Element e = (Element)doc.selectSingleNode("//contact[@id='"+id+"']");
		
		Contact c = null;
		if(e!=null){
			//创建COntact对象
			c = new Contact();
			c.setId(e.attributeValue("id"));
			c.setName(e.elementText("name"));
			c.setGender(e.elementText("gender"));
			c.setAge(Integer.parseInt(e.elementText("age")));
			c.setPhone(e.elementText("phone"));
			c.setEmail(e.elementText("email"));
			c.setQq(e.elementText("qq"));
		}
		return c;
	}

	/**
	 * 修改联系人
	 */
	public void updateContact(Contact contact) {
		/**
		 * 需求： 修改id值为2的联系人
		 * 	1）查询id值为2的contact标签
		 *  2）修改contact标签的内容
		 */
		try {
			//1.读取xml文件
			Document doc = XMLUtil.getDocument();
			
			Element contactElem = (Element)doc.selectSingleNode("//contact[@id='"+contact.getId()+"']");
			
			//2.修改contact标签内容
			contactElem.element("name").setText(contact.getName());
			contactElem.element("gender").setText(contact.getGender());
			contactElem.element("age").setText(contact.getAge()+"");
			contactElem.element("phone").setText(contact.getPhone());
			contactElem.element("email").setText(contact.getEmail());
			contactElem.element("qq").setText(contact.getQq());
			
			//3.把Document写出到xml文件
			XMLUtil.write2xml(doc);
		} catch (Exception e) {
			e.printStackTrace();
			throw new RuntimeException(e);
		}
	}
	
	public static void main(String[] args) {
		//测试UUID
		String uuid = UUID.randomUUID().toString().replace("-","");
		System.out.println(uuid);
	}

}

读取文档和写入文档的工具类： 

package gz.itcast.contactSys_web.util;

import java.io.File;
import java.io.FileOutputStream;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

/**
 * xml的工具类
 * @author APPle
 *
 */
public class XMLUtil {
	
	/**
	 * 读取xml文档方法
	 * @return
	 */
	public static Document getDocument(){
		try {
			Document doc = new SAXReader().read(new File("d:/contact.xml"));
			return doc;
		} catch (DocumentException e) {
			e.printStackTrace();
			throw new RuntimeException(e);
		}
	}
	

	/**
	 * 写出到xml文档中
	 */
	public static void write2xml(Document doc){
		try {
			FileOutputStream out = new FileOutputStream("d:/contact.xml");
			OutputFormat format = OutputFormat.createPrettyPrint();
			format.setEncoding("utf-8");
			XMLWriter writer = new XMLWriter(out,format);
			writer.write(doc);
			writer.close();
		} catch (Exception e) {
			e.printStackTrace();
			throw new RuntimeException(e);
		}
	}
}

测试类： 

package gz.itcast.contactSys_web.test;

import gz.itcast.contactSys_web.dao.ContactDao;
import gz.itcast.contactSys_web.dao.impl.ContactDaoImpl;
import gz.itcast.contactSys_web.entity.Contact;

import java.util.List;

import org.junit.Before;
import org.junit.Test;

/**
 * 联系人操作实现类的测试类
 * @author APPle
 *
 */
public class TestContactOperatorImpl {
	ContactDao operator = null;
	
	/**
	 * 初始化对象实例
	 */
	@Before
	public void init(){
		operator = new ContactDaoImpl();
	}
	

	@Test
	public void testAddContact(){
		Contact contact = new Contact();
		//contact.setId("2");
		contact.setName("张三2");
		contact.setGender("男");
		contact.setAge(20);
		contact.setPhone("134222233333");
		contact.setEmail("[email protected]");
		contact.setQq("33334444");
		operator.addContact(contact);
	}
	
	@Test
	public void testUpdateContact(){
		Contact contact = new Contact();
		contact.setId("1"); //修改的ID
		contact.setName("李四");
		contact.setGender("女");
		contact.setAge(30);
		contact.setPhone("135222233333");
		contact.setEmail("[email protected]");
		contact.setQq("33334444");
		operator.updateContact(contact);
	}
	
	@Test
	public void testDeleteContact(){
		operator.deleteContact("2");
	}
	
	@Test
	public void testFindAll(){
		List<Contact> list = operator.findAll();
		for (Contact contact : list) {
			System.out.println(contact);
		}
	}
	
	@Test
	public void testFindById(){
		Contact contact = operator.findById("1");
		System.out.println(contact);
	}
}

实体对象： 

package gz.itcast.contactSys_web.entity;
/**
 * 实体对象
 * @author APPle
 *
 */
public class Contact {

	private String id;
	private String name;
	private String gender;
	private int age;
	private String phone;
	private String email;
	private String qq;
	public String getId() {
		return id;
	}
	public void setId(String id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getGender() {
		return gender;
	}
	public void setGender(String gender) {
		this.gender = gender;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public String getPhone() {
		return phone;
	}
	public void setPhone(String phone) {
		this.phone = phone;
	}
	public String getEmail() {
		return email;
	}
	public void setEmail(String email) {
		this.email = email;
	}
	public String getQq() {
		return qq;
	}
	public void setQq(String qq) {
		this.qq = qq;
	}
	@Override
	public String toString() {
		return "Contact [age=" + age + ", email=" + email + ", gender="
				+ gender + ", id=" + id + ", name=" + name + ", phone=" + phone
				+ ", qq=" + qq + "]";
	}
	
}

猜你喜欢

转载自blog.csdn.net/lv_yishi/article/details/78889638
今日推荐
开源日报 | Chrome内置Gemini的意义不在于Gemini；中国AI追随之路的五大误区；ECharts创始人“下海”养鱼；谷歌I/O开发者大会什么都有，只是没有惊喜
微软回应中国区AI团队“打包赴美”传闻
基于大语言模型的开源知识库问答系统 MaxKB GitHub Star 数量突破 5,000 个！
美国拟限制 AI 大模型出口中国和俄罗斯
苹果将与 OpenAI 达成协议，将 ChatGPT 应用于 iPhone
openKylin 社区生态委员会第六次会议圆满召开
阿里云正式发布通义千问 2.5
Python 3.13 发布首个 Beta：实验性自由线程模式和 JIT、改进交互式解释器
Stack Overflow 拿我的代码去训练 AI 大模型，还封了我的账号
Pop!_OS 的 COSMIC 桌面完成 App Store 上架工作
《2024 年一季度互联网投融资运行情况》研究报告
报告：Django 仍然是 74% 开发者的首选
周排行
laravle中orm简单的增删改查
文本分类 特征选取之CHI开方检验
Spark核心编程-WordCount
大数据开发实战系列之电信客服(1)
读书笔记 - 把时间当作朋友 by 李笑来
python 笔记--if else
SpringBoot/Mybatis/Druid, 多数据源MultiDataSource配置思路
排序三个整数
redis集群搭建【2】-Windows中Redis集群搭建
STM32F030驱动TM1650点亮4联数码管
每日归档
更多
2024-05-16(6)
2024-05-15(24)
2024-05-14(0)
2024-05-13(18)
2024-05-12(0)
2024-05-11(38)
2024-05-10(38)
2024-05-09(35)
2024-05-08(42)
2024-05-07(14)

代码天地 © 2018 codetd.com

境外服务器   最新电视剧2022