hibernate简单程序，实现从页面对数据库的增删改查（主从表关联）

末蓝、 2021-09-14 04:50 271阅读 0赞

前段时期一直使用三层来写从页面对数据库的增删改查，今天用hibernate框架来实现从页面对数据库的增删改查，

首先介绍下今天我们要实现的功能，

1、用户能够注册，2、注册成功后直接跳到登录页面，3、登录成功后直接跳到对公司、人员的增删改查，

4、要有对人员界面的分页功能

**一、首先看下文件的目录**

**![Center][]![Center 1][]![Center 2][]![Center 2][]![Center 3][]**

unity里面写的是配置文件的session接口工具，dao层就是各种增删改查的方法

1、首先得配置文件：hibernate.cfg.xml

<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory >  <property name="connection.driver_class"> com.mysql.jdbc.Driver </property> <property name="connection.url"> jdbc:mysql://localhost:3306/company </property> <property name="connection.username"> root </property> <property name="connection.password"> DCX5201314 </property>  <property name="dialect"> org.hibernate.dialect.MySQL5Dialect </property>  <property name="hbm2ddl.auto">update</property>  <mapping resource="entity/user.hbm.xml"/> <mapping resource="entity/bm.hbm.xml"/> <mapping resource="entity/ry.hbm.xml"/> </session-factory> </hibernate-configuration>

2、配置untitl.java

package unity; public class unitl { public Session lj(){ //新建Configuration对象 Configuration cfg=new Configuration().configure(); //通过Configuration创建SessionFactory对象 ServiceRegistry registry = new StandardServiceRegistryBuilder() .applySettings(cfg.getProperties()) .build(); SessionFactory sf = cfg.buildSessionFactory(registry); //创建session Session session=sf.openSession(); return session; } }

3、首先我们先写用户的注册、登录

配置文件：user.hbm.xml

<hibernate-mapping > <class name="entity.user" table="user" > <id name="id" >  <generator class="native"></generator> </id> <property name="name" /> <property name="pwd" /> </class> </hibernate-mapping>

user.java文件（定义数据库里面的属性）

package entity; public class user { private int id; private String name; private String pwd; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPwd() { return pwd; } public void setPwd(String pwd) { this.pwd = pwd; } }

Userzhuceservlet.java文件（servlet层）

public class Userzhuceservlet extends HttpServlet { dao.selectone se=new dao.selectone(); public Userzhuceservlet() { super(); } public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); this.doPost(request, response); out.flush(); out.close(); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); //用type接受页面的值 String type=request.getParameter("type"); if ("1".equals(type)) { System.out.println("haha"); //调用条件查询的方法 zhuce(request, response); } else if ("2".equals(type)) { login(request, response); } out.flush(); out.close(); } /*************注册********************************************/ public void zhuce(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String name=request.getParameter("name"); String pwd=request.getParameter("pwd"); int a=se.selllt(name,pwd); if (a>0) { response.sendRedirect("login.jsp"); } } /*************登录********************************************/ public void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String name=request.getParameter("name"); String pwd=request.getParameter("pwd"); int a=se.login(name,pwd); if (a>0) { System.out.println("登录成功"); response.sendRedirect("index.jsp"); }else { System.out.println("登录失败"); } } public void init() throws ServletException { // Put your code here } }

selectone.java文件（名字起的有点问题，是用户的Dao层文件）

public class selectone { //调用工具包 static unitl unitl=new unitl(); static Session session=unitl.lj(); /****************注册************************************/ public int selllt(String name,String pwd){ int a=0; //3、开启事务 Transaction ts=session.beginTransaction(); //执行数据库操作 //添加操作 user u=new user(); u.setName(name); u.setPwd(pwd); session.save(u); System.out.println("注册成功"); //提交 ts.commit(); //关闭session //session.close(); a=1; return a; } /****************登录************************************/ public int login(String name,String pwd){ //执行数据库操作 //编写hql String hql="select name from user where name=? and pwd=?"; List<String> list=session.createQuery(hql) .setString(0, name) .setString(1, pwd) .list(); int a=list.size(); System.out.println(list.size()); // for(String na:list){ // System.out.println(na+"====="); // } //关闭session //session.close(); return a; } }

zhuce.jsp部分代码

<body> <h1>欢迎来到人力资源管理系统</h1> <form action="Userzhuceservlet" method="post"> <input type="hidden" value="1" name="type"> <tr> <td>要注册的用户名 ：</td><td><input type="text" name="name"/></td></tr> <tr> <td> 密码：</td><td><input type="password" name="pwd"/></td></tr> <tr><td><input type="submit" value="确认"></td></tr> </form> </body>

<body> <h1>欢迎来到人力资源登录系统</h1> <form action="Userzhuceservlet" method="post"> <input type="hidden" value="2" name="type"> <tr><td> 用户名 ：</td><td><input type="text" name="name"/></td><br/></tr> <tr> <td>密码：</td><td><input type="password" name="pwd"/></td><br/></tr> <tr><td><input type="submit" value="确认"></td></tr> </form> </body>

至于head、left、right、等页面参考我之前的文章http://blog.csdn.net/qq\_34178998/article/details/76578233这里就不在重复写了

4、再写部门的增删改查

配置bm.hbm.xml文件：

<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping > <class name="entity.bm" table="bm" > <id name="id" >  <generator class="native"></generator> </id> <property name="bmname" /> </class> </hibernate-mapping>

bm.java文件

public class bm { private int id; private String bmname; public bm(int id,String bmname){ this.id=id; this.bmname=bmname; } public bm(int id){ this.id=id; } public bm(){ } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getBmname() { return bmname; } public void setBmname(String bmname) { this.bmname = bmname; } }

BmServlet.java文件代码：

package servlet; public class BmServlet extends HttpServlet { BmDao bd=new BmDao(); public BmServlet() { super(); } public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); this.doPost(request, response); out.flush(); out.close(); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); PrintWriter out = response.getWriter(); //用type接受页面的值 String type=request.getParameter("type"); if ("1".equals(type)) { //添加部门的方法 addbm(request, response); } else if ("2".equals(type)) { //查询所有部门的方法 selectall(request, response); } else if ("3".equals(type)) { //根据ID删除部门 selectry(request, response); } else if ("4".equals(type)) { //根据修改部门 update(request, response); } else if ("5".equals(type)) { //根据ID查询一个部门 selectone(request, response); } out.flush(); out.close(); } /***********************添加部门*********************************************************/ public void addbm(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String bmname=request.getParameter("bmname"); int a=bd.addbm(bmname); if (a>0) { selectall(request, response); System.out.println("添加部门成功"); }else { System.out.println("添加部门失败"); response.sendRedirect("addbm.jsp"); } } /***********************查询所有部门*********************************************************/ public void selectall(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { List<bm> list=new ArrayList<bm>(); list=bd.selectall(); request.setAttribute("list", list); RequestDispatcher rd=request.getRequestDispatcher("showbm.jsp"); rd.forward(request, response); } /***********************根据ID删除部门*********************************************************/ public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=Integer.parseInt(request.getParameter("id")); bd.delete(id); selectall(request, response); } /***********************修改部门*********************************************************/ public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=Integer.parseInt(request.getParameter("id")); String newbmname=request.getParameter("newbmname"); bd.update(id, newbmname); selectall(request, response); } /***********************根据点中的ID查询一个部门*********************************************************/ public void selectone(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=Integer.parseInt(request.getParameter("id")); List<bm> list=bd.selectone(id); for(bm bb:list){ //System.out.println(bb.getBmname()+bb.getId()); request.setAttribute("list", bb); } //System.out.println("aa"); RequestDispatcher rd=request.getRequestDispatcher("updatebm.jsp"); rd.forward(request, response); } /***********************根据ID删除部门*********************************************************/ public void selectry(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=Integer.parseInt(request.getParameter("id")); System.out.println(id); int a=bd.selectonee(id); if(a>0){ delete(request, response); } } public void init() throws ServletException { // Put your code here } }

BmDao.java文件：

public class BmDao { //调用工具包 static unitl unitl=new unitl(); static Session session=unitl.lj(); int a=0; /***********添加部门****************************************************/ public int addbm(String bmname){ int a=0; //3、开启事务 Transaction ts=session.beginTransaction(); //执行数据库操作 //添加操作 bm b=new bm(); b.setBmname(bmname); session.save(b); //提交 ts.commit(); //关闭session //session.close(); a=1; return a; } /***********查看所有部门****************************************************/ @SuppressWarnings("unchecked") public List<bm> selectall(){ //执行数据库操作 //编写hql String hql="from bm "; List<bm> list=session.createQuery(hql).list(); return list; } /***********根据ID删除部门****************************************************/ public int delete(int id){ int a=0; //3、开启事务 Transaction ts=session.beginTransaction(); //执行数据库操作 //删除操作 bm b=(bm)session.get(bm.class, id);//注意强转 session.delete(b); //提交 ts.commit(); //关闭session //session.close(); a=1; return a; } /***********修改部门****************************************************/ public void update(int id, String name){ //执行数据库操作 //编写hql Transaction ts=session.beginTransaction(); bm b=(bm)session.load(bm.class, id); System.out.println(name); b.setBmname(name); session.update(b); //提交 ts.commit(); } /***********根据ID查询一个部门****************************************************/ public List<bm> selectone(int id){ //执行数据库操作 //编写hql String hql="select new bm(id,bmname) from bm where id=?"; List<bm> list=session.createQuery(hql) .setInteger(0, id) .list(); // for(bm bb:list){ // System.out.println(bb.getBmname()+bb.getId()); // // } return list; } /***********查询部门有没有人****************************************************/ @SuppressWarnings("unchecked") public int selectonee(int id){ int a=1; String sql="select *from ry where bmid="+id+""; List<ry> list=session.createSQLQuery(sql).list(); if(list.size()>0){ a=0; } return a; } }

addbm.jsp文件：

<body style="background-image:url(bg3.jpg)"> <h1>这是添加部门界面</h1> <form action="BmServlet" method="post"> <input type="hidden" value="1" name="type"> 部门：<input type="text" name="bmname"/><br/> <input type="submit" value="提交"> </form> </body>

showbm.jsp文件：

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <body style="background-image:url(bg3.jpg)"> <h1>这是显示页面</h1> <h1>显示部门种类</h1> <table border="1"> <tr><td>编号</td><td>部门种类</td><td>操作</td></tr> <c:forEach items="${list}" var="bm"> <tr> <td>${bm.id}</td><td>${bm.bmname}</td> <td><a href="BmServlet?type=5&&id=${bm.id}">修改</a>    <a href="BmServlet?type=3&&id=${bm.id}">删除</a></td> </tr> </c:forEach> </table> </body>

updatebm.jsp文件

<body style="background-image:url(bg3.jpg)"> <h1>修改类型页面</h1> <form action="BmServlet" method="post"> <input type="hidden" value="4" name="type"> <input type="hidden" value="${list.id }" name="id"> 部门：<input type="text" name="newbmname" value="${list.bmname }"><br/> <input type="submit" value="提交"> </body>

5、接下来是各部门的人员

ry.hbm.xml配置文件：

<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> <hibernate-mapping > <class name="entity.ry" table="ry" > <id name="id" >  <generator class="native"></generator> </id> <property name="name"></property> <property name="phone"></property> <property name="address"></property> <property name="bmid"></property> </class> </hibernate-mapping>

ry.java实体文件：

package entity; public class ry { private int id; private String name; private String phone; private String address; private int bmid; private String bmname; public ry(){} public ry(int id,String name,String phone,String address,int bmid){ this.id=id; this.name=name; this.phone=phone; this.address=address; this.bmid=bmid; } public ry(int id,String name,String phone,String address){ this.id=id; this.name=name; this.phone=phone; this.address=address; } public int getBmid() { return bmid; } public void setBmid(int bmid) { this.bmid = bmid; } public String getBmname() { return bmname; } public void setBmname(String bmname) { this.bmname = bmname; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPhone() { return phone; } public void setPhone(String phone) { this.phone = phone; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } }

RyServlet.java文件

package servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.List; import java.util.Map; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import dao.BmDao; import dao.RyDao; import entity.bm; import entity.ry; public class RyServlet extends HttpServlet { BmDao bd=new BmDao(); RyDao ry=new RyDao(); public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); this.doPost(request, response); out.flush(); out.close(); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); //接受页面的type值 String type=request.getParameter("type"); if ("1".equals(type)) { //跳到添加人员的界面前要先把部门种类查询出来 selectbm(request, response); } else if ("2".equals(type)) { //添加人员信息 addry(request, response); } else if ("3".equals(type)) { //查询所有人员信息 // selectallry(request, response); select(request, response); } else if ("4".equals(type)) { //删除操作 selectry(request, response); } else if ("5".equals(type)) { //1、修改操作，修改前先根据ID查询 selectone(request, response); } else if ("6".equals(type)) { //2、修改操作， update(request, response); } out.flush(); out.close(); } /************先所有查询部门**************************************************/ public void selectbm(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { List<bm> list=new ArrayList<bm>(); list=bd.selectall(); request.setAttribute("list", list); RequestDispatcher rd=request.getRequestDispatcher("addren.jsp"); rd.forward(request, response); } /************添加人员**************************************************/ public void addry(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String name=request.getParameter("name"); String phone=request.getParameter("phone"); String address=request.getParameter("address"); int bmid=Integer.parseInt(request.getParameter("bmid")); int a=ry.addry(name, phone, address, bmid); if (a>0) { System.out.println("添加人员成功"); //查询所有人员 selectallry(request, response); } } /************查看所有人员**************************************************/ public void selectallry(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { List<Map<String, Object>> list=ry.selectall(); request.setAttribute("list", list); RequestDispatcher rd=request.getRequestDispatcher("showry.jsp"); rd.forward(request, response); } /************查看所有人员********************************************************************************/ public void select(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ int size=0; int pagecount=0; int curPage=1; List<Map<String, Object>>list1=ry.selectall(); size=list1.size(); pagecount=(size%3==0)?(size/3):(size/3+1); String curpage=request.getParameter("curPage"); String tz=request.getParameter("tz"); if ("1".equals(tz)) { String pagedip=request.getParameter("pagedip"); curPage=Integer.parseInt(pagedip); } else if (curpage!=null&&!curpage.isEmpty()) { curPage=Integer.parseInt(curpage); } request.setAttribute("pagecount", pagecount); request.setAttribute("curPage",curPage); if (curPage>=pagecount) { curPage=pagecount; } List<Map<String, Object>> list=ry.selectpage(curPage); request.setAttribute("list",list); RequestDispatcher rd=request.getRequestDispatcher("showry.jsp"); rd.forward(request, response); } /***********************修改前根据点中的ID查询一个*********************************************************/ public void selectone(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=Integer.parseInt(request.getParameter("id")); List<ry> list=ry.selectone(id); for(ry rr:list){ System.out.println(rr.getName()+rr.getId()); request.setAttribute("list", rr); } RequestDispatcher rd=request.getRequestDispatcher("updatery.jsp"); rd.forward(request, response); } /***********************修改*********************************************************/ public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=Integer.parseInt(request.getParameter("idss")); String nname=request.getParameter("name"); String nphone=request.getParameter("phone"); String naddress=request.getParameter("address"); ry.update(id, nname, nphone, naddress); selectallry(request, response); } /***********************根据ID删除*********************************************************/ public void selectry(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { int id=Integer.parseInt(request.getParameter("id")); System.out.println(id); ry.delete(id); selectallry(request, response); } public void init() throws ServletException { // Put your code here } }

RyDao.java文件：

package dao; public class RyDao { //调用工具包 static unitl unitl=new unitl(); static Session session=unitl.lj(); /*******************添加人员信息*******************************************/ public int addry(String name,String phone,String address,int bmid){ int a=0; //3、开启事务 Transaction ts=session.beginTransaction(); //执行数据库操作 ry r=new ry(); r.setName(name); r.setPhone(phone); r.setAddress(address); r.setBmid(bmid); session.save(r); System.out.println("添加人员成功"); //提交 ts.commit(); //关闭session //session.close(); a=1; return a; } /*******************查询所有人员信息*******************************************/ @SuppressWarnings("unchecked") public List<Map<String, Object>> selectall(){ //执行数据库操作 //编写hql String sql="select r.id,r.name,r.phone,r.address,b.bmname from bm b, ry r where b.id=r.bmid"; Query query=session.createSQLQuery(sql); List<Map<String, Object>> list=query.setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list(); return list; } /*******************查询所有人员信息*******************************************/ public List<Map<String,Object>> selectpage(int page) { // TODO Auto-generated method stub Query query = session.createSQLQuery("select r.id,r.name,r.phone,r.address,b.bmname from bm b, ry r where b.id=r.bmid"); query.setFirstResult((page-1)*3); query.setMaxResults(3); List<Map<String,Object>> result=query.setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP).list(); return result; } /***********根据ID查询一个****************************************************/ @SuppressWarnings("unchecked") public List<ry> selectone(int id){ //执行数据库操作 //编写hql String hql="select new ry(id,name,phone,address) from ry where id=?"; List<ry> list=session.createQuery(hql) .setInteger(0, id) .list(); return list; } /*******************修改人员信息*******************************************/ public void update(int id, String name,String phone,String address){ //执行数据库操作 //编写hql //3、开启事务 Transaction ts=session.beginTransaction(); //修改 ry r=(ry) session.load(ry.class, id); r.setName(name); r.setPhone(phone); r.setAddress(address); session.update(r); //提交 ts.commit(); } /***********根据ID删除部门****************************************************/ public int delete(int id){ int a=0; //3、开启事务 Transaction ts=session.beginTransaction(); //执行数据库操作 //删除操作 ry r=(ry)session.get(ry.class, id);//注意强转 session.delete(r); //提交 ts.commit(); //关闭session //session.close(); a=1; return a; } }

addren.jsp文件：

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <body style="background-image:url(bg3.jpg)"> <h1>添加人员界面</h1> <form action="RyServlet" method="post"> <input type="hidden" value="2" name="type"> 名字：<input type="text" name="name"/><br/> 电话：<input type="text" name="phone"/><br/> 住址：<input type="text" name="address"/><br/> 部门：<select name="bmid"> <c:forEach items="${list}" var="bm"> <option value="${bm.id}"> ${bm.bmname }</option> </c:forEach> </select> <input type="submit" value="提交"> </form> </body>

showry.jsp文件：

<body style="background-image:url(bg3.jpg)">     <h1>这是显示页面</h1>     <h1>显示人员</h1>     <table border="1">     <tr><td>编号</td><td>姓名</td><td>电话</td><td>地址</td><td>部门</td><td>操作</td></tr>     <c:forEach items="${list}" var="ry">     <tr>     <td>${ry.id}</td><td>${ry.name}</td><td>${ry.phone}</td><td>${ry.address}</td>     <td>${ry.bmname}</td>               <td><a href="RyServlet?type=5&&id=${ry.id}">修改</a>           <a href="RyServlet?type=4&&id=${ry.id}">删除</a></td>      </tr>      </c:forEach>      </table>       <a href="RyServlet?type=3&&curPage=1">首页</a>     <a href="RyServlet?type=3&&curPage=${curPage-1}">上一页</a>     <a href="RyServlet?type=3&&curPage=${curPage+1}">下一页</a>     <a href="RyServlet?type=3&&curPage=${pagecount}">尾页</a> 总页数：${pagecount} 当前页数：${curPage}<br/>     <form action="RyServlet?type=3" method="post">      跳转到<input type="text"  name="pagedip" value="${curPage}" />页 <input type="hidden" name="tz" value="1"/>   <input type="submit" value="跳转"  />         </body>

updatery.jsp文件：

<body> <h1>修改内容页面</h1> <form action="RyServlet" method="post"> <input type="hidden" value="6" name="type"> <input type="hidden" name="idss" value="${list.id}"/> 名字：<input type="text" name="name" value="${list.name}"/><br/> 电话：<input type="text" name="phone" value="${list.phone}"/><br/> 地址：<input type="text" name="address" value="${list.address}"/><br/> <input type="submit" value="提交"> </form> </body>

以上就是我的全部代码，部门jsp文件的c标签的包没导入，要注意一下，具体其他的页面可以参考我之前写的博客 ![大笑][laugh.gif]  
![Center 4][] ![Center 5][] ![Center 6][]

[Center]: https://img-blog.csdn.net/20170907101341876?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzQxNzg5OTg=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 1]: https://img-blog.csdn.net/20170907101902195?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzQxNzg5OTg=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 2]: https://img-blog.csdn.net/20170907114234862?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzQxNzg5OTg=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 3]: /images/20210708/ca8e6e4b3863429eb9e574707e9ed525.png
[laugh.gif]: /images/20210708/9eca5c09f04d4ef08b4f87d41bd027bd.png
[Center 4]: https://img-blog.csdn.net/20170907114318247?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzQxNzg5OTg=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 5]: https://img-blog.csdn.net/20170907114332597?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvcXFfMzQxNzg5OTg=/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[Center 6]: /images/20210708/1c0451421f64404bb9b6aa1b7d90faff.png