struts2-8-实验一添加书籍-db|vo|dao|action|view

一：使用集合模拟数据库--->nuc.sw.db--->BookDB.java

     

 1 package nuc.sw.db;
 2 
 3 import java.util.ArrayList;
 4 import java.util.List;
 5 
 6 import nuc.sw.vo.Book;
 7 
 8 public class BookDB {
　　　　//定义静态集合，类可以打点调用，并且类的多个对象也可以使用
 9     public static List<Book> bookList=new ArrayList<Book>();
10 }

 

二：封装对象（书）--->nuc.sw.vo--->Book.java

 

package nuc.sw.vo;

public class Book {
  private String bookName;
  private String bookAuthor;
  private float bookPrice;
public String getBookName() {
    return bookName;
}
public void setBookName(String bookName) {
    this.bookName = bookName;
}
public String getBookAuthor() {
    return bookAuthor;
}
public void setBookAuthor(String bookAuthor) {
    this.bookAuthor = bookAuthor;
}
public float getBookPrice() {
    return bookPrice;
}
public void setBookPrice(float bookPrice) {
    this.bookPrice = bookPrice;
}
  
}

 

 

三：借助DAO层往数据库（集合）添加书籍并且获取集合

 

package nuc.sw.dao;

import java.util.List;

import nuc.sw.db.BookDB;
import nuc.sw.vo.Book;

public class BookDAO {
    //添加书籍方法
    public void addBook(Book book){
        BookDB.bookList.add(book);
    }
    //获取书籍方法
    public List<Book> getBook(){
        return BookDB.bookList;
    }
}

 

四：相应的action中调用DAO中的方法--->nuc.sw.action--->BookAction.java

 

package nuc.sw.action;

import java.util.List;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

import nuc.sw.dao.BookDAO;
import nuc.sw.vo.Book;

public class BookAction extends ActionSupport implements ModelDriven<Book>{

    Book b=new Book();
    //后期用到添加书和获取书的方法。所以要创建对象
    BookDAO bookDAO=new BookDAO();
    //模型驱动
    @Override
    public Book getModel() {
        // TODO Auto-generated method stub
        return b;
    }
   
    public String addBookMethod() throws Exception {
    // TODO Auto-generated method stub
        bookDAO.addBook(b);
        return "addOK";
  }
    
    public String getBookMethod() throws Exception {
        // TODO Auto-generated method stub
        List<Book> bList=bookDAO.getBook();
        ActionContext.getContext().getSession().put("bList", bList);
        return "getOK";
    }
}

 

 

五：View中写添加书籍和获取书籍的jsp页面--->addBook.jsp--->showBook.jsp

 

 1 <%@ page language="java" contentType="text/html; charset=utf-8"
 2     pageEncoding="utf-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10 <form action="addBookAction" method="post">
     //name和Book.java中一样

11    书名:<input type="text" name="bookName"> <br>
12    作者:<input type="text" name="bookAuthor"><br>
13    价格:<input type="text" name="bookPrice"><br>
14  <input type="submit" value="添加">
15 </form>
16 </body>
17 </html>

 

 1 <%@ page language="java" contentType="text/html; charset=utf-8"
 2     pageEncoding="utf-8" import="nuc.sw.vo.Book,java.util.*"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>Insert title here</title>
 8 </head>
 9 <body>
10   <table border="1">
11          <caption>全部书籍信息</caption>
12          <tr>
13           <td>书名:</td>
14           <td>作者:</td>
15          <td>定价:</td>
16   </tr>
17   <% 
18         Iterator<Book> iter=((ArrayList<Book>)session.getAttribute("bList")).iterator();  
19         while(iter.hasNext()){
20           pageContext.setAttribute("book",iter.next());
21    %>
22      
23     <tr>
24       <td>${book.bookName} </td>
25       <td>${book.bookAuthor} </td>
26       <td>${book.bookPrice} </td>
27    </tr>    
28 <%
29     }
30 %>
31 
32 </table>
33 </body>
34 </html>

 

六：配置struts.xml文件

 1 <?xml version="1.0" encoding="UTF-8" ?>
 2 <!DOCTYPE struts PUBLIC
 3     "-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
 4     "http://struts.apache.org/dtds/struts-2.3.dtd">
 5 
 6 <struts>
 7  <constant name="struts.devMode" value="true" />
 8  <constant name="struts.enable.DynamicMethodInvocation" value="true"></constant>
 9  <package name="default" namespace="/" extends="struts-default">
10     <action name="LoginReg"  method="LoginMethod" class="nuc.sw.action.LoginRegAction">
11          <result name="success">/welcome.jsp</result>
12          <result name="error">/login.jsp</result>
13          <result name="input">/login.jsp</result>
14      </action>
15      <action name="RegisterReg"  method="RegisterMethod"  class="nuc.sw.action.LoginRegAction">
16          <result name="success">/register.jsp</result>
17          <result name="error">/login.jsp</result>
18          <result name="input">/login.jsp</result>
19      </action>
20      <action name="addBookAction" class="nuc.sw.action.BookAction" method="addBookMethod">
               //结果类型使用chain  可以实现请求转发  从action--->action

21           <result name="addOK" type="chain">getBookAction</result>
22      </action>
23      <action name="getBookAction" class="nuc.sw.action.BookAction" method="getBookMethod">
24          <result name="getOK">/showBook.jsp</result>
25      </action>
26  </package>
27     <!-- Add packages here -->
28 </struts>

 

 

七：项目结构

 

八：运行结果

 

　　添加书籍：

      

      

      

 

        显示书籍：

        

 

        

 

posted @ 2016-10-13 16:50  ~花开不败~  阅读(451)  评论(0)  编辑  收藏  举报