JavaEE三大框架的整合

JavaEE三大框架的整合

                                                                                                                              2019-05-14   14:01:39

 

 

注：应用软件为：Eclipse+MySQL；三大框架版本为：Struts2+Spring5+Hibernate5

第一步准备工作

 

三大框架所用的.jar下载，文件见如下链接：

 

https://www.cnblogs.com/MrZhangxd/p/10793454.html

 

整合目录结构：（打马赛克的地方有个人信息，望宝宝们见谅）

第二步 配置SSH三大框架

将以上下载的.jar文件复制粘贴到WebContent/WEB-INF/lib文件夹下

第三步 主要实现业务逻辑代码

注：dao.impl、service.impl包在dao、service包建完并且里面有.java文件后在建，以免发生dao、service包被dao.impl、service.impl包所覆盖。

注：dao.impl、service.impl包在dao、service包建完并且里面有.java文件后在建，以免发生dao、service包被dao.impl、service.impl包所覆盖。

注：dao.impl、service.impl包在dao、service包建完并且里面有.java文件后在建，以免发生dao、service包被dao.impl、service.impl包所覆盖。

（重要的事说三遍）

|--Src

|  |--org.xxx.com.action

|  |  |--LoginAction.java

|  |  |--RegisterAction.java

|  |--org.xxx.com.dao

|  |  |--UserDao.java(interface)

|  |--org.xxx.com.dao.impl（implement）

|  |  |--UserDaoImpl.java（实现接口类）

|  |--org.xxx.com.exception

|  |  |--AgeException.java

|  |--org.xxx.com.po

|  |  |--User.java

|  |--org.xxx.com.service

|  |  |--UserService.java(interface)

|  |--org.xxx.com.service.impl（implement）

|_|_|_UserServiceImpl.java(实现接口类)

 

主要代码如下：不在多余解释，有啥看不懂可以发我邮箱，有时间会给宝宝们解决的

LoginAction.java

 


package org.xxx.com.action;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Scope;

import org.springframework.stereotype.Controller;

import org.xxx.com.po.User;

import org.xxx.com.service.UserService;

@Controller()

@Scope("prototype")

publicclass LoginAction {

    @Autowired

    private UserService userService;

    private User user;

    public User getUser() {

        returnuser;

    }

    publicvoid setUser(User user) {

        this.user = user;

    }

    public String login() {

    List<User> u=  userService.login(user);

    if(u.size()>0) {

        return"success";

    }

    else{

        return"error";

    }

    }

}

 

RegisterAction.java

 


package c.action;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.context.annotation.Scope;

import org.springframework.stereotype.Controller;

import org.xxx.com.exception.AgeException;

import org.xxx.com.po.User;

import org.xxx.com.service.UserService;

import com.opensymphony.xwork2.ActionContext;

@Controller()

@Scope("prototype")

publicclass RegisterAction {

    @SuppressWarnings("unused")

    @Autowired

    private UserService userService;

    private User user;

    public User getUser() {

        returnuser;

    }

    publicvoid setUser(User user) {

        this.user = user;

    }

    public String execute() {

        if (user.getAge()>100) {

            thrownew AgeException("年龄不符合要求");

        }

        userService.addUser(user);

        return"success";

    }

    public String updateUser() {

         

        userService.updateUser(user);

         

        return"success";

    }

    public String deleteUser() {

         

        userService.deleteUser(user);

         

        return"success";

    }

    public String queryUsers() {

    List<User> lsit=   userService.queryUsers();

    ActionContext ctx= ActionContext.getContext();

    ctx.put("list", lsit); //表示request对象,ctx.getSession();

    //这个方法可以得到session的东西，但是没有得到session对象，可以对此进行put,ctx.getSession().get(key)可以获取session中对象

    //Map map=

    return"success";

    }

    public String getById() {

    User u= userService.getById(user.getId());

        ActionContext ctx= ActionContext.getContext();

        ctx.put("u", u); //表示request对象,ctx.getSession();

        return"success";

    }

}

 

UserDao.java

 


package org.xxx.com.dao;

import java.util.List;

import org.xxx.com.po.User;

publicinterface UserDao {

    public Integer insertUser(User user);

    public List<User>  login(User user);

    publicint updateUser(User user);

    publicint deleteUser(User user);

    public List<User>  queryUsers();

    public User getById(intid);

}

 

UserDaoImpl.java

 


package org.xxx.com.dao.impl;

import java.util.List;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.query.Query;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Repository;

import org.xxx.com.dao.UserDao;

import org.xxx.com.po.User;

@Repository("userDao")

publicclass UserDaoImpl implements UserDao {

    @Autowired

    private SessionFactory SessionFactory ;

    private Session getSession() {

        returnSessionFactory.getCurrentSession();

    }

    @Override

    public Integer insertUser(User user) {

        getSession().save(user);

        returnnull;

    }

    @Override

    public List<User>  login(User user) {

        String hql="select distinct u from User u where u.username=?0 and u.password=?1 ";

         @SuppressWarnings("rawtypes")

        Query query =getSession().createQuery(hql);

         query.setParameter(0+"", user.getUsername());

         query.setParameter(1+"", user.getPassword());

        // query.setFirstResult(1).setMaxResults(1);

        //System.out.println(query.list().size());

        @SuppressWarnings("unchecked")

        List<User> list= query.list();

        returnlist;

    }

    @Override

    publicint updateUser(User user) {

        String hql="update User u set username=?0,password=?1 ,age=?2 where id=?3 ";

        @SuppressWarnings("rawtypes")

        Query query =getSession().createQuery(hql);

         query.setParameter(0+"", user.getUsername());

         query.setParameter(1+"", user.getPassword());

         query.setParameter(2+"", user.getAge());

         query.setParameter(3+"", user.getId());

         intresult = query.executeUpdate();

         returnresult;

    }

    @Override

    publicint deleteUser(User user) {

        String hql="delete from User u where u.id=?0 ";

        @SuppressWarnings("rawtypes")

        Query query =getSession().createQuery(hql);

        query.setParameter(0+"", user.getId());

         

        intresult = query.executeUpdate();

        returnresult;

    }

    @Override

    public List<User> queryUsers() {

        String hql="select distinct u from User u  ";

         @SuppressWarnings("rawtypes")

        Query query =getSession().createQuery(hql);

        @SuppressWarnings("unchecked")

        List<User> list= query.list();

        returnlist;

    }

    @Override

    public User getById(intid) {

        String hql="select distinct u from User u  where u.id=?0";

         @SuppressWarnings("rawtypes")

        Query query =getSession().createQuery(hql);

         query.setParameter(0+"", id);

         @SuppressWarnings("unchecked")

        List<User> list_u=query.list();

         User  list=null;

         if(list_u.size()>0){

             list = list_u.get(0);

         }

        returnlist;

    }

}

 

AgeException

 


package org.xxx.com.exception;

@SuppressWarnings("serial")

publicclass AgeException extends RuntimeException {

 

    public AgeException() {

        super();

        // TODO Auto-generated constructor stub

    }

    public AgeException(String message, Throwable cause, booleanenableSuppression, booleanwritableStackTrace) {

        super(message, cause, enableSuppression, writableStackTrace);

        // TODO Auto-generated constructor stub

    }

    public AgeException(String message, Throwable cause) {

        super(message, cause);

        // TODO Auto-generated constructor stub

    }

    public AgeException(String message) {

        super(message);

        // TODO Auto-generated constructor stub

    }

    public AgeException(Throwable cause) {

        super(cause);

        // TODO Auto-generated constructor stub

    }

}

 

User.java

 


package org.xxx.com.po;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.Table;

@Entity

@Table(name="tb_user")

publicclass User {

    @Id

    @GeneratedValue(strategy=GenerationType.IDENTITY)

    private Integer id;

    private String username;

    private String password;

    private Integer age;

    public Integer getId() {

        returnid;

    }

    publicvoid setId(Integer id) {

        this.id = id;

    }

    public String getUsername() {

        returnusername;

    }

    publicvoid setUsername(String username) {

        this.username = username;

    }

    public String getPassword() {

        returnpassword;

    }

    publicvoid setPassword(String password) {

        this.password = password;

    }

    public Integer getAge() {

        returnage;

    }

    publicvoid setAge(Integer age) {

        this.age = age;

    }

   

   

    public User() {

        super();

    }

    public User(String username, String password, Integer age) {

        super();

        this.username = username;

        this.password = password;

        this.age = age;

    }

}

 

UserService.java

 


package org.xxx.com.service;

import java.util.List;

import org.xxx.com.po.User;

publicinterface UserService {

    publicvoid addUser(User user);

    public List<User>  login(User user);

    publicint updateUser(User user);

    publicint deleteUser(User user);

    public  List<User>   queryUsers();

    public User getById(intid);

}

UserServiceImpl.java

 


package org.xxx.com.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Transactional;

import org.xxx.com.dao.UserDao;

import org.xxx.com.po.User;

import org.xxx.com.service.UserService;

@Service("userService")

publicclass UserServiceImpl implements UserService {

    @Autowired

    private UserDao userDao;

    @Transactional

    publicvoid addUser(User user) {

        userDao.insertUser(user);

    }

    @Transactional(readOnly=true)

    @Override

    public List<User>  login(User user) {

        returnuserDao.login(user);

    }

    @Transactional

    @Override

    publicint updateUser(User user) {

         returnuserDao.updateUser(user);

    }

    @Transactional

    @Override

    publicint deleteUser(User user) {

        return  userDao.deleteUser(user);

    }

    @Transactional(readOnly=true)

    @Override

    public List<User> queryUsers() {

        // TODO Auto-generated method stub

        returnuserDao.queryUsers();

    }

    @Transactional(readOnly=true)

    @Override

    public User getById(intid) {

        returnuserDao.getById(id);

    }

}

 

第四步 主要是配置文件

web.xml

struts.xml

applicationContext.xml

hibernate.cfg.xml

db.properties

 

接下来一个一个来配置（配置属性不多解释，有啥看不懂可以发我邮箱，有时间会给宝宝们解决的）

 

web.xml

 


<?xmlversion="1.0"encoding="UTF-8"?>

<web-appxmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns="http://xmlns.jcp.org/xml/ns/javaee"

    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"id="WebApp_ID"version="3.1">

  <display-name>Project_JavaEE_Lab_04</display-name>

  <welcome-file-list>

    <welcome-file>index.html</welcome-file>

    <welcome-file>index.htm</welcome-file>

    <welcome-file>index.jsp</welcome-file>

    <welcome-file>default.html</welcome-file>

    <welcome-file>default.htm</welcome-file>

    <welcome-file>default.jsp</welcome-file>

  </welcome-file-list>

  <!-- 配置 spring配置文件的名称和位置 -->

    <context-param>

        <param-name>contextConfigLocation</param-name>

        <param-value>classpath:applicationContext.xml</param-value>

    </context-param>

    <!-- 启动IoC容器的listener -->

    <listener>

        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

    </listener>

    <!-- struts过滤器配置 -->

    <filter>

        <filter-name>Struts2</filter-name>

        <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>

    </filter>

    <filter-mapping>

        <filter-name>Struts2</filter-name>

        <url-pattern>/*</url-pattern>

    </filter-mapping>

 

</web-app>

 

struts.xml

 


<?xmlversion="1.0"encoding="UTF-8"?>

<!DOCTYPEstrutsPUBLIC

    "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN"

    "http://struts.apache.org/dtds/struts-2.5.dtd">

<struts>

    <constantname="struts.enable.DynamicMethodInvocation"value="false"/>

    <packagename="default"namespace="/"extends="struts-default">

    <actionname="registerA"  

class="org.xxx.com.action.RegisterAction">

        <resultname="success">/WEB-INF/content/welcome.jsp</result>

    </action>

    <actionname="*">

            <result>/WEB-INF/content/register.jsp</result>

        </action>

        <actionname="loginAction"

class="org.xxx.com.action.LoginAction"method="login">

        <resultname="success">/WEB-INF/content/welcome.jsp</result>

        <resultname="error">/WEB-INF/content/loginForm.jsp</result>

    </action>

         <actionname="queryUsersAction"class="org.xxx.com.action.RegisterAction"method="queryUsers">

        <resultname="success">/WEB-INF/content/listUser.jsp</result>

        <resultname="error">/WEB-INF/content/error.jsp</result>

    </action>

        <actionname="updateUserAction"

class="org.xxx.com.action.RegisterAction"method="updateUser">

        <resultname="success"type="redirectAction">

        <paramname="actionName">queryUsersAction</param>

        </result>

        <resultname="error">/WEB-INF/content/error.jsp</result>

    </action>

        <actionname="deleteUserAction"

class="org.xxx.com.action.RegisterAction"method="deleteUser">

        <resultname="success">/WEB-INF/content/listUser.jsp</result>

        <resultname="error">/WEB-INF/content/error.jsp</result>

    </action>

        <actionname="getByIdAction"class="org.xxx.com.action.RegisterAction"method="getById">

        <resultname="success">/WEB-INF/content/updateUser.jsp</result>

        <resultname="error">/WEB-INF/content/error.jsp</result>

    </action>

    </package>

</struts>

 

applicationContext.xml

 


<?xmlversion="1.0"encoding="UTF-8"?>

<beansxmlns="http://www.springframework.org/schema/beans"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns:context="http://www.springframework.org/schema/context"

    xmlns:tx="http://www.springframework.org/schema/tx"

    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd

    http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-4.3.xsd

    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

    <context:component-scan

base-package="org.xxx.com">

</context:component-scan>

    <context:property-placeholderlocation="classpath:db.properties"/>

        <beanid="dataSource"  class="com.mchange.v2.c3p0.ComboPooledDataSource">

        <propertyname="user"value="${jdbc.user}"></property>

        <propertyname="password"value="${jdbc.password}"></property>

        <propertyname="jdbcUrl"value="${jdbc.jdbcUrl}"></property>

<propertyname="driverClass"value="${jdbc.driverClass}"></property>

            <propertyname="initialPoolSize"value="${jdbc.initPoolSize}"></property>

    <propertyname="maxPoolSize"

value="${jdbc.maxPoolSize}"></property>

    </bean>

   

    <beanid="sessionFactory"class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">

    <propertyname="dataSource"ref="dataSource"></property>

    <propertyname="configLocation"value="classpath:hibernate.cfg.xml"></property>

    </bean>

   

    <!-- 配置事务管理器 -->

    <beanid="transactionManager"class="org.springframework.orm.hibernate5.HibernateTransactionManager">

        <propertyname="dataSource"ref="dataSource"></property>

        <propertyname="sessionFactory"ref="sessionFactory"></property>

    </bean>

    <!-- 启用事务注解 -->

    <tx:annotation-driventransaction-manager="transactionManager"/>

</beans>

 

hibernate.cfg.xml

 


<?xmlversion="1.0"encoding="UTF-8"?>

<!DOCTYPEhibernate-configuration

    PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN"

    "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <propertyname="show_sql">true</property>

        <propertyname="hibernate.hbm2ddl.auto">update</property>

        <propertyname="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</property>

       

        <mappingclass="org.xxx.com.po.User"/>

    </session-factory>

</hibernate-configuration>

 

db.properties

 


jdbc.user=数据库用户名

jdbc.password=数据库密码

jdbc.driverClass=com.mysql.jdbc.Driver

jdbc.jdbcUrl=jdbc:mysql://localhost:3306/db_ssh（数据库）

jdbc.initPoolSize=5

jdbc.maxPoolSize=10

 

注db.properties可以以一下代码直接在hibernate.cfg.xml里面配置

 


<!-- 指定连接数据库所用的驱动 -->

<property name="connection.driver_class">com.mysql.jdbc.Driver

</property>

<!-- 指定连接数据库的url，其中hibernate是本应用连接的数据库名 -->

<property

name="connection.url">jdbc:mysql://localhost:3306/ssh?useSSL=true

</property>

<!-- 指定连接数据库的用户名 -->

<property name="connection.username">数据库用户名</property>

<!-- 指定连接数据库的密码 -->

<property name="connection.password">数据库密码</property>

<!-- 指定连接池里最大连接数 -->

<property name="hibernate.c3p0.max_size">20</property>

<!-- 指定连接池里最小连接数 -->

<property name="hibernate.c3p0.min_size">1</property>

<!-- 指定连接池里连接的超时时长 -->

<property name="hibernate.c3p0.timeout">5000</property>

<!-- 指定连接池里最大缓存多少个Statement对象 -->

<property name="hibernate.c3p0.max_statements">100</property>

<property name="hibernate.c3p0.idle_test_period">3000</property>

<property name="hibernate.c3p0.acquire_increment">2</property>

<property name="hibernate.c3p0.validate">true</property>

<!-- 指定数据库方言 -->

<property

name="dialect">org.hibernate.dialect.MySQL5InnoDBDialect

</property>

 

第五步 Web前端

Regeister.jsp

LongForm.jsp

Welcome.jsp

ListUser.jsp

UpdataUser.jsp

Error.jsp

 

接下来一一写jsp页面

Regeister.jsp

 


<%@ page language="java" contentType="text/html; charset=utf-8"

    pageEncoding="utf-8"%>

<!DOCTYPE html>

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<link href="css/styles.css" rel="stylesheet">

<title>Insert title here</title>

</head>

<body>

<div>

<div class="hesder">

</div>

<div class="center">

<form action="registerA" class="">

    <table>

        <tr>

            <td>用户名</td>

            <td><input type="text" name="user.username" /></td>

        </tr>

        <tr>

            <td>密码</td>

            <td><input type="password" name="user.password" /></td>

        </tr>

        <tr>

            <td>年龄</td>

            <td><input type="text" name="user.age" /></td>

        </tr>

        <tr>

            <td colspan="2" align="center"><input type="submit" value=注册 /></td>

        </tr>

    </table>

</form>

</div>

<div class="footer">

<p>CopyRight &copy;<a href="https://www.cnblogs.com/MrZhangxd/">MrZhangxd</a>版权所有，违者必究！</p>

</div>

</div>

</body>

</html>

 

 

LongForm.jsp

 


<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>登录</title>

</head>

<body>

<div>

    <div></div>

    <div>

        <form action="loginAction" method="post">

            <table>

                <tr>

                    <td>用户名</td>

                    <td><input type="text" name="user.username" /></td>

                </tr>

                <tr>

                    <td>密码</td>

                    <td><input type="password" name="user.password" /></td>

                </tr>

                <tr>

                    <td colspan="2" align="center"><input type="submit" value=登录 /></td>

                </tr>

            </table>

        </form>

    </div>

    <div>

        <p>CopyRight &copy;<a href="https://www.cnblogs.com/MrZhangxd/">MrZhangxd</a>版权所有，违者必究！</p>

    </div>

</div>

</body>

</html>

 

 

Welcome.jsp

 


<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<%@ taglib prefix="s" uri="/struts-tags" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>Insert title here</title>

</head>

<body>

    <h1>注册成功！！

        <br>用户名：<s:property value="user.username"/>

        <br>密码：<s:property value="user.password"/>

        <br>年龄：<s:property value="user.age"/>

    </h1>

    <br><a href="queryUsersAction">用户一栏表</a>

</body>

</html>

 

 

ListUser.jsp

 


<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

 <%@taglib prefix="s" uri="/struts-tags" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>登录</title>

</head>

<script type="text/javascript">

function update(id){

window.location.href="getByIdAction?user.id="+id;

}

</script>

<body>

<center>

     <table>

      <tr><td>顺序</td><td>id</td><td>用户名</td><td>密码</td><td>年龄</td></tr>

      <s:iterator value="list" status="st">

      <tr>

      <td><s:property value="#st.index"/></td>

      <td><s:property value="id" /></td>

      <td><s:property value="username" /></td>

      <td><s:property value="password" /></td>

      <td><s:property value="age" /></td>

      <td><button onclick=‘update(<s:property value="id" />)‘>修改</button></td>

      <td><button onclick=‘delete(<s:property value="id" />)‘>删除</button></td> 

      </tr>

      </s:iterator>

     </table>

</center>

</body>

</html>

 

 

UpdataUser.jsp

 


<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

     <%@taglib prefix="s" uri="/struts-tags" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>Insert title here</title>

</head>

<body>

    <div>

        <div></div>

        <div>

            <form action="updateUserAction">

                <table>

                    <tr>

                        <td colspan="2" align="center"><input type="hidden" name="user.id"  value="${u.id}"/></td>

                    </tr>

                    <tr>

                        <td>用户名</td>

                        <td><input type="text" name="user.username"  value="${u.username}"/></td>

                    </tr>

                    <tr>

                        <td>密码</td>

                        <td><input type="text" name="user.password" value="${u.password}"/></td>

                    </tr>

                    <tr>

                        <td>年龄</td>

                        <td><input type="text" name="user.age"  value="${u.age}"/></td>

                    </tr>

                    <tr>

                        <td colspan="2" align="center"><input type="submit" /></td>

                    </tr>

                </table>

            </form>

            </div>

        <div></div>

    </div>

</body>

</html>

 

 

Error.jsp


<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<%@ taglib prefix="s" uri="/struts-tags" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>访问错误页面</title>

</head>

<body>

    <h1>访问错误</h1>

</body>

 

到此为止ssh三大框架整合完成

 

第六步 数据操作

 

创建数据库


Create database db_ssh;

创建tb_user表


CREATE TABLE `tb_user` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `password` varchar(255) DEFAULT NULL,

  `username` varchar(255) DEFAULT NULL,

  `age` int(11) DEFAULT NULL,

  PRIMARY KEY (`id`)

) AUTO_INCREMENT=6 DEFAULT CHARSET=utf8;

向tb_user表中插入数据


INSERT INTO `tb_user` VALUES (‘1‘, ‘xxx‘, ‘宝宝们‘, ‘永远18岁‘);

INSERT INTO `tb_user` VALUES (‘2‘, ‘xxx‘, ‘宝宝们‘, ‘永远18岁‘);

INSERT INTO `tb_user` VALUES (‘3‘, ‘xxx‘, ‘宝宝们‘, ‘永远18岁‘);

INSERT INTO `tb_user` VALUES (‘4‘, ‘xxx‘, ‘宝宝们‘, ‘永远18岁‘);

INSERT INTO `tb_user` VALUES (‘5‘, ‘xxx‘, ‘宝宝们‘, ‘永远18岁‘);

个人邮箱

QQ邮箱地址 [email protected]
outLook邮箱地址 [email protected]
163邮箱地址 [email protected]

原文地址：https://www.cnblogs.com/MrZhangxd/p/10861886.html

时间： 2024-10-07 13:35:50

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