jsp第七次作业 - CheaSim Blog
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jsp第七次作业

jsp大作业

作业要求

  • mysql + CRUD
  • 校验器
  • Struts2+Hibernate 框架
  • css美化

文件结构

![image-20181128192100403](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128192100403.png)

运行截图

登陆界面

![image-20181128192157690](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128192157690.png)

选择操作界面

![image-20181128192234733](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128192234733.png)

增加和修改界面

使用了js语言，实现了一个form中有两个按钮，指向不同的action

![image-20181128192321558](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128192321558.png)

校验器

应用对加入学生信息进行校验。

ID必须为0或者不为0开头的数字。

name和address不能为空。

![image-20181128192708351](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128192708351.png)

成功添加后自动转到学生列表(改变也是一样)

![image-20181128192747889](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128192747889.png)

查询和删除

因为用户可能不确定要删除哪一个，所以删除的旁边还有一个查询按钮。根据ID来进行查询。

![image-20181128192905933](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128192905933.png)

![image-20181128192914679](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128192914679.png)

代码

接口代码

![image-20181128193135141](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128193135141.png)

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package njtech.edu.DAO;

import java.util.List;

import org.hibernate.Session;

public interface BaseDAO {
    public Session getSession();
    public void closeSession();
    public List search(String hql);
}
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package njtech.edu.DAO;


import java.util.List;
import njtech.edu.model.Student;

public interface StudentDAO {
    void saveStudent(Student student);

    List<Student> getAll();
    void changeStudent(Student student);
    void deleteStudent(Student student);
    List<Student> queryStudent(Student student);
}
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package njtech.edu.DAO;

import njtech.edu.model.User;

import java.util.List;

public interface UserDAO {

    User queryUser(String username);
}

实现类代码

![image-20181128193145593](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128193145593.png)

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package njtech.edu.DAO.impl;

import java.util.List;

import com.googlecode.s2hibernate.struts2.plugin.util.HibernateSessionFactory;
import njtech.edu.DAO.BaseDAO;
import njtech.edu.DAO.StudentDAO;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

public class BaseDAOImpl implements BaseDAO {
    private SessionFactory sessionFactory;
    private Session session;
    private Transaction tx;
    public void init(){
        session = HibernateSessionFactory.getSession();
        tx = session.beginTransaction();
    }
    @Override
    public Session getSession() {
        init();
        return session;
    }
    @Override
    public void closeSession() {
        session.close();
    }
    @Override
    public List search(String hql) {
        Session session = null;
        session = getSession();
        List alist = null;
        alist = session.createQuery(hql).list();
        session.close();
        return alist;
    }
}
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package njtech.edu.DAO.impl;


import njtech.edu.model.Student;
import njtech.edu.DAO.StudentDAO;
import org.hibernate.*;
import org.hibernate.cfg.Configuration;
import org.hibernate.criterion.Restrictions;

import java.util.List;

public class StudentDAOImpl extends BaseDAOImpl implements StudentDAO{
    SessionFactory sessionFactory = null;
    Session session = null;
    Transaction tx = null;
    public StudentDAOImpl(){}
    public void init() {
        sessionFactory = new Configuration().
                configure("hibernate.cfg.xml").
                buildSessionFactory();
        session = sessionFactory.openSession();
        tx = session.beginTransaction();
    }
    @Override
    public void saveStudent(Student student) {
        init();
        session.save(student);
        String sql = "insert into student (id,name,address) values('" +
                    Integer.toString(student.getId()) +".'"+
                    student.getName()+"','"+
                    student.getAddress()+"')"
                ;
        tx.commit();
        session.close();
    }

    @Override
    public List<Student> getAll() {
        init();
        List<Student> students = session.createQuery("from Student").list();

        //List<Student> students  = (Student) session.createQuery("from Student ");
        return students;
    }
    @Override
    public void changeStudent(Student student){
        init();
        Student student1 = (Student) session.get(Student.class, new Integer(student.getId()));
        // hql 查询
        //Student student2 = (Student) session.createQuery("from Student where id="+student.getId());
        // sql 查询
        //Query query = session.createSQLQuery("select * from student where id="+student.getId()).addEntity(Student.class);
        //Student student3 = (Student) query.list();
        student1.setName(student.getName());
        student1.setAddress(student.getAddress());
        session.update(student1);
        tx.commit();
        session.close();
    }
    @Override
    public void deleteStudent(Student student){
        init();
        Student student1 = (Student) session.get(Student.class, student.getId());
        // hql查询
        //Student student2 = (Student) session.createQuery("from Student where id="+student.getId());
        // sql 查询
        //Query query = session.createSQLQuery("select * from student where id="+student.getId()).addEntity(Student.class);
        //Student student3 = (Student) query.list();
        if(student  != null){
            session.delete(student1);
        }
        tx.commit();
        session.close();
    }
    @Override
    public List<Student> queryStudent(Student student){
        init();
        Criteria criteria
                = session.createCriteria(Student.class).add(Restrictions.like("id",student.getId()));
        //hql 查询
        Query query = session.createQuery("from Student where id="+student.getId());
        // sql 查询
        //Query query = session.createSQLQuery("select * from student where id="+student.getId()).addEntity(Student.class);
        //List<Student> students2 = query.list();
        List<Student> students = criteria.list();
        //return students2;
       return students;
    }
}

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package njtech.edu.DAO.impl;

import njtech.edu.DAO.UserDAO;
import njtech.edu.model.Student;
import njtech.edu.model.User;
import org.hibernate.*;
import org.hibernate.cfg.Configuration;
import org.hibernate.criterion.Restrictions;

import java.util.List;

public class UserDAOImpl extends BaseDAOImpl implements UserDAO {
    SessionFactory sessionFactory = null;
    Session session = null;
    Transaction tx = null;
    public UserDAOImpl(){}
    public void init() {
        sessionFactory = new Configuration().
                configure("hibernate.cfg.xml").
                buildSessionFactory();
        session = sessionFactory.openSession();
        tx = session.beginTransaction();
    }
    @Override
    public User queryUser(String username) {
        init();
        Criteria criteria
                = session.createCriteria(User.class).add(Restrictions.like("username",username));

        User user = (User)criteria.uniqueResult();

        return user;
    }
}

action类代码

![image-20181128193156432](/Users/cheasim/Library/Application Support/typora-user-images/image-20181128193156432.png)

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package njtech.edu.Action;

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import njtech.edu.DAO.StudentDAO;
import njtech.edu.DAO.impl.StudentDAOImpl;
import njtech.edu.model.Student;

public class StudentAction extends ActionSupport implements ModelDriven {
    private Student student;
    private List<Student> students = new ArrayList<Student>();
    private StudentDAO dao = new StudentDAOImpl();
    public Object getModel() {
        return student;
    }
    public String saveStudent()
    {
        dao.saveStudent(student);
        return "success";
    }
    public String listStudents()
    {
        students = dao.getAll();
        return "success";
    }
    public String queryStudents(){
        students = dao.queryStudent(student);
        return "success";
    }
    public String changeStudent()
    {
        dao.changeStudent(student);
        return "success";
    }
    public String deleteStudent(){
        dao.deleteStudent(student);
        return "success";
    }
    public void validate(){
        System.out.println("校验器!");
    }
    public void validateSaveStudent(){
        if(student != null){
            Integer ID = student.getId();
            String IID = ID.toString();
            if("".equals(this.student.getName().trim())){
                this.addFieldError("username", "用户名不能为空");
            }
            if("".equals(this.student.getAddress().trim())){
                this.addFieldError("address", "地址不能为空");
            }
            if(!Pattern.compile("^(0|[1-9][0-9]*)$").matcher(IID).matches()){
                this.addFieldError("id", "ID格式不正确");
            }

        }
        super.validate();
    }
    public Student getStudent() {
        return student;
    }
    public void setStudent(Student student) {
        this.student = student;
    }
    public List<Student> getStudents() {
        return students;
    }
    public void setStudents(List<Student> students) {
        this.students = students;
    }
}
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package njtech.edu.Action;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import njtech.edu.DAO.impl.UserDAOImpl;
import njtech.edu.model.User;

public class UserLoginAction extends ActionSupport {

    private User user;
    private UserDAOImpl dao= new UserDAOImpl();

    public String userLogin(){
        User tempuser = dao.queryUser(user.getUsername());
        if(tempuser.equals(user)){
            return "success";
        }else{
            return "error";
        }
    }
    public User getUser() {
        return user;
    }

    public void setUser(User user) {
        this.user = user;
    }


}

Hibernate配置文件

cfg.xml

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<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="connection.url">jdbc:mysql://localhost:3306/test?useSSL=false</property>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.username">root</property>
        <property name="connection.password">123456</property>
        <property name="current_session_context_class">thread</property>
        <property name="show_sql">true</property>
        <property name="hbm2ddl.auto">update</property>
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <mapping class="njtech.edu.model.Student"/>
        <mapping resource="njtech/edu/model/Student.hbm.xml"/>
        <mapping resource="njtech/edu/model/User.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

hbm user和student

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<?xml version='1.0' encoding='utf-8'?>
<!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="njtech.edu.model.Student" table="student" schema="test">
        <id name="id">
            <column name="id" sql-type="int(11)"/>
        </id>
        <property name="name">
            <column name="name" sql-type="varchar(100)" length="100" not-null="true"/>
        </property>
        <property name="address">
            <column name="address" sql-type="varchar(100)" length="100" not-null="true"/>
        </property>
    </class>
</hibernate-mapping>
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<?xml version='1.0' encoding='utf-8'?>
<!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="njtech.edu.model.User" table="user" schema="test">
        <id name="username">
            <column name="username" sql-type="varchar(20)" length="20"/>
        </id>
        <property name="password">
            <column name="password" sql-type="varchar(20)" length="20"/>
        </property>
    </class>
</hibernate-mapping>

model类 Student User

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package njtech.edu.model;

import javax.persistence.*;
import java.util.Objects;
public class Student {
    private int id;
    private String name;
    private String address;
    public Student(){}
    public Student(int id, String name, String address){
        this.id = id;
        this.name = name;
        this.address = address;
    }

    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 getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Student that = (Student) o;
        return id == that.id &&
                Objects.equals(name, that.name) &&
                Objects.equals(address, that.address);
    }

    @Override
    public int hashCode() {
        return Objects.hash(id, name, address);
    }
}

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package njtech.edu.model;

import java.util.Objects;

public class User {
    private String username;
    private String password;
    public User(){}
    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        User user = (User) o;
        return Objects.equals(username, user.username) &&
                Objects.equals(password, user.password);
    }

    @Override
    public int hashCode() {
        return Objects.hash(username, password);
    }
}

Struts2配置文件

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<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
        "http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>
    <package name="default" extends="struts-default">
        <action name="addStudent" method="saveStudent"
                class="njtech.edu.Action.StudentAction">
            <result name="success" type="redirect">
                listStudents.action
            </result>
            <result name="input">add.jsp</result>
        </action>
        <action name="changeStudent" method="changeStudent"
                class="njtech.edu.Action.StudentAction">
            <result name="success" type="redirect">
                listStudents.action
            </result>
        </action>
        <action name="listStudents" method="listStudents"
                class="njtech.edu.Action.StudentAction">
            <result name="success">
                index.jsp
            </result>
        </action>
        <action name="queryStudents" method="queryStudents"
                class="njtech.edu.Action.StudentAction">
            <result name="success" >
                queryStudent.jsp
            </result>
        </action>
        <action name="deleteStudent" method="deleteStudent"
                class="njtech.edu.Action.StudentAction">
            <result name="success">
                success.jsp
            </result>
        </action>
        <action name="userLogin" method="userLogin"
                class="njtech.edu.Action.UserLoginAction">
            <result name="success"> index.jsp</result>
            <result name="error">login.jsp</result>
        </action>
    </package>
</struts>

前端代码

css

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body
{
    background: url("../image/2.jpg") no-repeat;
    background-size:100%;
    background-attachment: fixed;
}
form{
    display:inline-block;
    margin-top:100px;
}
h1
{
    color: #ffb11c;
    text-align:center;
}
p
{
    font-family:"Times New Roman";
    font-size:20px;
}
table
{
    border-collapse:collapse;
}
table,th, td
{
    border: 0px solid black;
    border-bottom-color: aqua;
}
form
{
    background:rgba(255,255,255,0.3);
    border: 1px solid rgba(0,0,0, 0.2);
    font-family:"Monaco";
    font-size: 40px;
    border-radius: 30px;
}
.input_control{
    width:360px;
    margin:14px auto;
}
.error_message{
    color: #ff383f;
    font-size: 20px;
}
input[type="text"]{
    box-sizing: border-box;
    text-align:center;
    font-size:1.0em;
    height:2.0em;
    border-radius:20px;
    border:1px solid #c8cccf;
    color:#6a6f77;
    -web-kit-appearance:none;
    -moz-appearance: none;
    display:block;
    outline:0;
    padding:0 1em;
    text-decoration:none;
    width:100%;
}
input[type="password"]{
    box-sizing: border-box;
    text-align:center;
    font-size:1.0em;
    height:2.0em;
    border-radius:20px;
    border:1px solid #c8cccf;
    color:#6a6f77;
    -web-kit-appearance:none;
    -moz-appearance: none;
    display:block;
    outline:0;
    padding:0 1em;
    text-decoration:none;
    width:100%;
}
input[type="text"]:focus{
    border:1px solid #ff7496;
}
.button{
    background-color: #af8c99; /* Green */
    border: none;
    color: white;
    padding: 17px 28px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    border-radius:4px;
}

JSP

第一个页面

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<%--
  Created by IntelliJ IDEA.
  User: cheasim
  Date: 2018/11/11
  Time: 11:57 AM
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib prefix="s" uri="/struts-tags"%>
<html>

<head>
    <title>登陆界面</title>
    <link type="text/css" rel="stylesheet" href="css/mystyle.css"/>
    <style>
        <!--
        form{ height:350px; width:400px; border:1px solid #666666;}
        -->
    </style>
    <script type="text/javascript">
        function login(){
            document.myform.action='http://localhost:8080/userLogin.action';
            document.myform.submit();
        }
    </script>
    <style type="text/css">
        .button{
            background-color: #af8c99; /* Green */
            border: none;
            color: white;
            padding: 14px 28px;
            text-align: center;
            text-decoration: none;
            display: inline-block;
            font-size: 20px;
            border-radius:13px;
        }
    </style>
</head>
<body>
<center>
<h1> 管理员登陆界面</h1>
<form action="userLogin" name="myform">
    <s:textfield name="user.username" label="用户名"/>
    <s:textfield name="user.password" label="密码" type="password"/>
    <input type="button" class="button" value="登陆" onclick="login();" align="right"/>
</form>
</center>
</body>
</html>

选择页面

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<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
  <title>学生登录系统</title>
  <link type="text/css" rel="stylesheet" href="css/mystyle.css" />
    <style type="text/css">
        .button{
            background-color: #af8c99; /* Green */
            border: none;
            color: white;
            padding: 15px 30px;
            text-align: center;
            text-decoration: none;
            display: inline-block;
            font-size: 24px;
            border-radius:13px;
        }
    </style>
    <script type="text/javascript">
        function goAdd(){
            document.myform.action='add.jsp';
            document.myform.submit();
        }
        function goDelete(){
            document.myform.action='queryStudent.jsp';
            document.myform.submit();
        }
    </script>
</head>
<body>
<center>
<h1>学生系统学生一览</h1>
    <form name="myform">
        <table>
            <tr>
                <input type="button" class="button" value="增加和修改" onclick="goAdd();"/>
            </tr>
            <tr>
                <input type="button" class="button" value="删除和查询" onclick="goDelete();"/>
            </tr>

        </table>
    </form>
<s:if test="students.size() > 0">
  <table border="1px" cellpadding="8px" bgcolor=#faebd7 style="filter:alpha(opacity=50);">
    <tr>
      <th>Student Id</th>
      <th>Name</th>
      <th>Address</th>
    </tr>
    <s:iterator value="students">
      <tr>
        <td><s:property value="id" /></td>
        <td><s:property value="name" /></td>
        <td><s:property value="address" /></td></td>
      </tr>
    </s:iterator>
  </table>
</s:if>
</center>
</body>
</html>

增加和修改

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<%--
  Created by IntelliJ IDEA.
  User: cheasim
  Date: 2018/11/28
  Time: 3:39 PM
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
    <title>增加学生</title>
    <link type="text/css" rel="stylesheet" href="css/mystyle.css" />
    <script type="text/javascript">
        function changeStudent(){
            document.myform.action='http://localhost:8080/changeStudent.action';
            document.myform.submit();
        }
        function saveStudent(){
            document.myform.action='http://localhost:8080/addStudent.action';
            document.myform.submit();
        }
    </script>

</head>
<body>
<center>
    <form action="addStudent" name="myform">
        <h4> 加入学生信息</h4>
        <s:textfield name="student.id" label="ID"/>
        <s:fielderror fieldName="id" cssClass="error_message"/>
        <s:textfield name="student.name" label="Name"/>
        <s:fielderror fieldName="username" cssClass="error_message"/>
        <s:textfield name="student.address" label="Address"/>
        <s:fielderror fieldName="address" cssClass="error_message"/>
        <input type="button" class="button" value="改变" onclick="changeStudent();"/>
        <input type="button" class="button" value="增加" onclick="saveStudent();"/>
    </form>
</center>
</body>
</html>

查询和删除

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<%--
  Created by IntelliJ IDEA.
  User: cheasim
  Date: 2018/11/14
  Time: 2:43 PM
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
    <title>查询结果</title>
    <link type="text/css" rel="stylesheet" href="css/mystyle.css" />
    <script type="text/javascript">
        function deleteStudent(){
            document.myform1.action='http://localhost:8080/deleteStudent.action';
            document.myform1.submit();
        }
        function queryStudent(){
            document.myform1.action='http://localhost:8080/queryStudents.action';
            document.myform1.submit();
        }
    </script>
</head>
<body>
<center>
    <form action="queryStudents" name="myform1">
        <h4> 查询学生信息
            依据id搜索或者删除</h4>
        <s:textfield name="student.id" label="ID"/>
        <input type="button" class="button"value="删除" onclick="deleteStudent();"/>
        <input type="button"class="button" value="查询" onclick="queryStudent();"/>
    </form>
<h1>学生查询结果</h1>
<s:if test="students.size() > 0">
    <table border="1px" cellpadding="8px" bgcolor=#faebd7 style="filter:alpha(opacity=50);">
        <tr>
            <th>Student Id</th>
            <th>Name</th>
            <th>Address</th>
        </tr>
        <s:iterator value="students">
            <tr>
                <td><s:property value="id" /></td>
                <td><s:property value="name" /></td>
                <td><s:property value="address" /></td></td>
            </tr>
        </s:iterator>
    </table>
</s:if>
</center>
</body>
</html>

jsp第七次作业

https://www.cheasim.com/uncategorized/2018/11/28/jsp%E7%AC%AC%E4%B8%83%E6%AC%A1%E4%BD%9C%E4%B8%9A.html

作者

CheaSim

发布于

2018-11-28

更新于

2018-11-28

许可协议

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