学生信息管理系统（struts2+Hibernate）(1)

第一步：配置项目中要用到的jar包（struts2+Hibernate+Junit+mysql-jdbc）

1、window-preferences-java-Bulid Path-User Libraries     在这里面添加相关jar包

2、右击项目-Properties-Java Build Path-Add Library  将jar包导入到项目组中

第二步：配置web.xml、struts.xml、hibernate.cfg.xml.

1.在web.xml中配置struts2的过滤器

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

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

    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="WebApp_ID" version="3.0">

    <display-name></display-name>

    <welcome-file-list>

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

    </welcome-file-list>

    <filter>

    <filter-name>struts2</filter-name>

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

    </filter>

    <filter-mapping>

    <filter-name>struts2</filter-name>

    <url-pattern>/*</url-pattern>

    </filter-mapping>

</web-app>

2.配置struts.xml

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

    </package>

</struts>

3.配置hibernate.cfg.xml

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

<!DOCTYPE hibernate-configuration PUBLIC

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

        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <property name="username">root</property>

        <property name="password"></property>

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

        <property name="connection.url">jdbc:mysql:///test?useUnicode=true&

            characterEncoding=UTF-8</property>

        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

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

        <property name="format_sql">true</property>

        <property name="hbm2ddl.auto">update</property>

        <property name="current_session_context_class">thread</property>

    </session-factory>

</hibernate-configuration>

第三步：建实体类（Users和Students）

Users：

package entity;

public class Users {

    private int uid;

    private String username;

    private String password;

    public Users() {

    }

    public Users(int uid, String username, String password) {

        // super();

        this.uid = uid;

        this.username = username;

        this.password = password;

    }

    public int getUid() {

        return uid;

    }

    public void setUid(int uid) {

        this.uid = uid;

    }

    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;

    }

}

Students：

package entity;

import java.util.Date;

public class Students {

private String sid;

private String sname;

private String gender;

private Date birthday;

private String address;

public Students()

{

    

}

public Students(String sid, String sname, String gender, Date birthday,

        String address) {

    //super();

    this.sid = sid;

    this.sname = sname;

    this.gender = gender;

    this.birthday = birthday;

    this.address = address;

}

public String getSid() {

    return sid;

}

public void setSid(String sid) {

    this.sid = sid;

}

public String getSname() {

    return sname;

}

public void setSname(String sname) {

    this.sname = sname;

}

public String getGender() {

    return gender;

}

public void setGender(String gender) {

    this.gender = gender;

}

public Date getBirthday() {

    return birthday;

}

public void setBirthday(Date birthday) {

    this.birthday = birthday;

}

public String getAddress() {

    return address;

}

public void setAddress(String address) {

    this.address = address;

}

@Override

public String toString() {

    return "Students [sid=" + sid
bb35
+ ", sname=" + sname + ", gender=" + gender

            + ", birthday=" + birthday + ", address=" + address + "]";

}

}

第四步：生成实体类的对象关系映射文件（Users.hbm.xml和Students.hbm.xml）

Users.hbm.xml:

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

<!DOCTYPE hibernate-mapping PUBLIC

        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

<class name="entity.Users" table="Users">

<id name="uid" type="int">

<generator class="native"/>

</id>

<property name="username" type="java.lang.String"/>

<property name="password" type="java.lang.String"/>

</class>

</hibernate-mapping>

Students.hbm.xml:

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

<!DOCTYPE hibernate-mapping PUBLIC

        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"

        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>

    <class name="entity.Students" table="Students">

        <id name="uid" type="java.lang.String"  length="8">

            <generator class="assigned" />

        </id>

        <property name="sname" type="java.lang.String" />

        <property name="gender" type="java.lang.String" />

        <property name="birthday" type="date" />

        <property name="address" type="java.lang.String" />

    </class>

</hibernate-mapping>