hibernate与Struts框架结合编写简单针对修改练习

时间：2023-03-09 18:28:24
hibernate与Struts框架结合编写简单针对修改练习

失败页面fail.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>Insert title here</title>

</head>

<body>

操作失败！

</body>

</html>

　　

页面列表jsp.

<%@page import="com.hanqi.entity.Student"%>

<%@page import="java.util.List"%>

<%@ 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>Insert title here</title>

</head>

<body> 

<%

List<Student> ls=(List<Student>)request.getAttribute("Studentlist");

for(Student st:ls)

{

	out.print(st+"【<a href='deleteStudent?sno="+st.getSno()

	+"'>删除</a>】【<a href='updateStudent?sno="+st.getSno()+"'>修改</a>】<br>");

}

%>

</body>

</html>

　　hibernate与Struts框架结合编写简单针对修改练习

修改页面jsp

<%@page import="com.hanqi.entity.Student"%>

<%@page import="com.hanqi.service.StudentService"%>

<%@ 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>Insert title here</title>

</head>

<body>

<%

	Student st=(Student)request.getAttribute("student");

%>

修改界面

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

学号：<input type="text" name="student.sno" value=<%=st.getSno() %> readonly="readonly">

<br><br>

年龄：<input type="text" name="student.age" value=<%=st.getAge() %>>

<br><br>

姓名：<input type="text" name="student.sname" value=<%=st.getSname() %>>

<br><br>

生日：<input type="text" name="student.birthday" value=<%=st.getBirthday() %>>

<br><br>

金额：<input type="text" name="student.money" value=<%=st.getMoney() %>>

<br><br>

<input type="submit" value="提交">

</form>

</body>

</html>

Dao包

//查询单条信息

    public Student  query(int sno)

    {

        init();

        Student st=(Student)se.get(Student.class, sno);

        destroy();

        return st;

    }

    //修改方法

    public void update(Student student)

    {

        init();

        se.saveOrUpdate(student);

        destroy();

    }

service包

    //查询单条信息

    public Student query(int sno)

    {

        return new StudentDao().query(sno);

    }

    //修改

    public void update(Student student)

    {

         new StudentDao().update(student);

    }

Action类

package com.hanqi.action;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts2.interceptor.ServletRequestAware;

import com.hanqi.entity.Student;

import com.hanqi.service.StudentService;

public class StudentAction implements ServletRequestAware {

    private HttpServletRequest hsr;

    //欲模型方式

    private Student student;

    public Student getStudent() {

        return student;

    }

    public void setStudent(Student student) {

        this.student = student;

    }

    //查询单挑信息

    public     String update()

    {

        String rtn="fail";

        try{

            String sno=hsr.getParameter("sno");

            Student st=new StudentService().query(Integer.parseInt(sno));

            hsr.setAttribute("student", st);

            rtn="ok";

        }catch(Exception e)

        {

            e.printStackTrace();

        }

        return rtn;

    }

//修改

    public String updateStudent()

    {

        String rtn="fail";

        try{

        new StudentService().update(student);

        rtn="ok";

        }catch(Exception e)

        {

            e.printStackTrace();

        }

        return rtn;

    }

@Override

    public void setServletRequest(HttpServletRequest arg0) {

        hsr=arg0;

    }

Struts.xml文件

<!-- 查询单条信息 -->

   <action name="updateStudent" class="com.hanqi.action.StudentAction" method="update">

   <result name="ok">/WEB-INF/pages/update.jsp</result>

   <result name="fail">/WEB-INF/pages/fail.jsp</result>

   </action>

   <!-- 修改 -->

    <action name="update" class="com.hanqi.action.StudentAction" method="updateStudent">

   <result name="ok" type="redirectAction">selectStudent</result>

   <result name="fail">/WEB-INF/pages/fail.jsp</result>

   </action>

web.xml

<?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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">

  <display-name>Test21</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>

 	 <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>

　　hibernate.hbm.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 >

 <!-- 连接数据库 -->

  <property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>

  <property name="hibernate.connection.password">123456</property>

  <property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property>

  <property name="hibernate.connection.username">test01</property>

  <!-- 数据库方案 -->

  <property name="hibernate.default_schema">TEST01</property>

  <property name="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</property>

  <!-- 调试 -->

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

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

  <!-- 自动建表方式 -->

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

  <!-- 注册映射文件 -->

  <mapping resource="com/hanqi/entity/Student.hbm.xml"/>

 </session-factory>

</hibernate-configuration>