Struts2 框架 +SQL Server資料庫 （圖書的增刪改查）
阿新 • • 發佈：2018-12-20
用資料庫和struts2框架來實現簡單的圖書的管理（增刪改查）
要求：
1:登入成功之後跳轉到一個新增的頁面 圖書列表頁面 2:增加圖書的新增頁面及功能 3:增加圖書的刪除功能 4:增加圖書的修改頁面及功能 5:在圖書的新增/修改可以進行中英文的切換 特別注意: 關於圖書的增刪改查 需要進行登入之後才能操作,需要用到攔截器,如果沒有登入則直接跳轉到登入頁面
1. 專案列表
2.addBook.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>新增圖書</title> <style type="text/css"> body{ margin-left: 300pt; } </style> </head> <body> <form action="book/addBook" method="post"> 書名：<input type="text" name="book.bookName" /><br /> 作者：<input type="text" name="book.bookAuthor" /><br /> ISBN：<input type="text" name="book.bookIsbn" /><br /> 出版社：<input type="text" name="book.bookPublish" /><br /> <input type="submit" value="提交" /> </form> </body> </html>
3.bookList.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>圖書列表</title> <style type="text/css"> body{ margin-left: 200pt; } table,table tr th, table tr td { border: 1px solid grey } </style> </head> <body> <a href='<%=basePath %>book/toAddBook'>新增圖書</a> <table> <thead> <tr> <th>編號</th> <th>圖書名稱</th> <th>作者</th> <th>出版社</th> <th>ISBN</th> <th>操作</th> </tr> </thead> <s:iterator value="#request.books" status="book"> <tr> <td><s:property value="id"/></td> <td><s:property value="bookName"/></td> <td><s:property value="bookAuthor"/></td> <td><s:property value="bookIsbn"/></td> <td><s:property value="bookPublish"/></td> <td><a href='<%=basePath %>book/selectBookId?book.id=<s:property value="id"/>'>更新<br /></a> <a href='<%=basePath %>book/delBook?book.id=<s:property value="id"/>'>刪除</a></td> </tr> </s:iterator> </table> </body> </html>
4.modifyBook.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="s" uri="/struts-tags" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>更新頁面</title> </head> <body> 更新內容： <form action="book/updateBook" method="post"> <table> <thead> <tr> <th>編號</th> <th>圖書名稱</th> <th>作者</th> <th>出版社</th> <th>ISBN</th> </tr> </thead> <s:iterator value="#request.booksId" status="booksId"> <tr> <td><input type="text" value=" <s:property value="id"/>" name="book.id"/></td> <td><input type="text" value=" <s:property value="bookName"/>" name="book.bookName"/></td> <td><input type="text" value=" <s:property value="bookAuthor"/>" name="book.bookAuthor"/></td> <td><input type="text" value=" <s:property value="bookIsbn"/>" name="book.bookIsbn"/></td> <td><input type="text" value=" <s:property value="bookPublish"/>" name="book.bookPublish"/></td> </tr> </s:iterator> </table> <input type="submit" value="提交"/> </form> </body> </html>
5. login.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>登入</title>
</head>
<body>
<form action="<%=basePath%>/user/login" method="post">
使用者名稱：<input type="text" name="name"/><br/>
密碼：<input type="text" name="pwd"/><br/>
<input type="submit" value="登入"/>
</form>
</body>
</html>
6. BookAction.java
package com.xxs.action;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.xxs.bean.Book;
import com.xxs.service.BookService;
import com.xxs.service.impl.BookServiceImpl;
public class BookAction extends ActionSupport{
private Book book;
public Book getBook() {
return book;
}
public void setBook(Book book) {
this.book = book;
}
/**
* 查詢圖書
* @return
*/
public String bookList(){
//從資料庫獲取資料 進行資料準備 然後將資料傳至bookList.jsp
BookService bookService = new BookServiceImpl();
List<Book> books = bookService.selectBooks();
HttpServletRequest request = ServletActionContext.getRequest();
request.setAttribute("books", books);
return "success";
}
/**
* 準備新增圖書
* @return
*/
public String toAddBook() {
return "success";
}
/**
* 新增圖書
* @return
*/
public String addBook() {
BookService bookService = new BookServiceImpl();
bookService.addBook(book);
return "success";
}
/**
* 刪除圖書
* @return
*/
public String delBook(){
BookService bookService = new BookServiceImpl();
bookService.deleteBook(book.getId());
return "success";
}
/**
* 根據id查詢圖書 並跳轉到更新圖書頁面
* @return
*/
public String selectBookId(){
BookService bookService = new BookServiceImpl();
Book booksId = bookService.selectBookId(book.getId());
HttpServletRequest request = ServletActionContext.getRequest();
request.setAttribute("booksId", booksId);
return "success";
}
/**
* 更新圖書
* @return
*/
public String updateBook(){
BookService bookService = new BookServiceImpl();
bookService.updateBook(book);
return "success";
}
}
7.LoginAction.java
package com.xxs.action;
import java.util.Map;
import javax.servlet.http.HttpSession;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
public class LoginAction extends ActionSupport {
private String name;
private String pwd;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public String login(){
if(name !=null &&!"".equals(name) && pwd !=null &&!"".equals(pwd)){
//判斷
if(name.equals("xxs")&&pwd.equals("123")){
Map<String, Object> session = ActionContext.getContext().getSession();
session.put("user", name);
return "success";
}else{
return "fail";
}
}else{
return "fail";
}
}
}
8.Book.java
package com.xxs.bean;
public class Book {
private int id;
private String bookName;
private String bookAuthor;
private String bookIsbn;
private String bookPublish;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
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 String getBookIsbn() {
return bookIsbn;
}
public void setBookIsbn(String bookIsbn) {
this.bookIsbn = bookIsbn;
}
public String getBookPublish() {
return bookPublish;
}
public void setBookPublish(String bookPublish) {
this.bookPublish = bookPublish;
}
public Book() {
super();
}
public Book(int id, String bookName, String bookAuthor, String bookIsbn,
String bookPublish) {
super();
this.id = id;
this.bookName = bookName;
this.bookAuthor = bookAuthor;
this.bookIsbn = bookIsbn;
this.bookPublish = bookPublish;
}
public String toString() {
return "Book [bookAuthor=" + bookAuthor + ", bookIsbn=" + bookIsbn
+ ", bookName=" + bookName + ", bookPublish=" + bookPublish
+ ", id=" + id + "]";
}
}
9.BookDaoImpl.java
package com.xxs.dao.impl;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import com.xxs.bean.Book;
import com.xxs.dao.BookDao;
import com.xxs.util.DBUtil;
public class BookDaoImpl implements BookDao{
@Override
public List<Book> selectBooks() {
// TODO 這個地方和資料庫真正打交道
Connection conn = DBUtil.getConn();
String sql = "select * from book";
PreparedStatement ps = null;
ResultSet rs = null;
List<Book> books = new ArrayList<Book>();
try {
ps = conn.prepareStatement(sql);
rs = ps.executeQuery();
while(rs.next()){
Book book = new Book();
book.setId(rs.getInt(1));
book.setBookName(rs.getString(2));
book.setBookAuthor(rs.getString(3));
book.setBookPublish(rs.getString(4));
book.setBookIsbn(rs.getString(5));
books.add(book);
}
} catch (SQLException e) {
e.printStackTrace();
}finally{
DBUtil.closeConn(conn, ps, rs);
}
return books;
}
public boolean addBook(Book book) {
Connection conn = DBUtil.getConn();
String sql = "insert into book (book_name,book_author,book_isbn,book_publish) values (?,?,?,?)";
PreparedStatement ps = null;
int count = 0;
try {
ps = conn.prepareStatement(sql);
ps.setString(1, book.getBookName());
ps.setString(2, book.getBookAuthor());
ps.setString(3, book.getBookIsbn());
ps.setString(4, book.getBookPublish());
count = ps.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
} finally {
DBUtil.closeConn(conn, ps, null);
}
if (count > 0)
return true;
else
return false;
}
public boolean deleteBook(int bookId) {
Connection conn = DBUtil.getConn();
String sql = "delete from book where id = ?";
PreparedStatement ps = null;
int count = 0;
try {
ps = conn.prepareStatement(sql);
ps.setInt(1, bookId);
count = ps.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
} finally {
DBUtil.closeConn(conn, ps, null);
}
if (count > 0)
return true;
else
return false;
}
public Book selectBookId(int bookId) {
Connection conn = DBUtil.getConn();
String sql = "select * from book where id = ?";
PreparedStatement ps = null;
ResultSet rs = null;
Book book = new Book();
try {
ps = conn.prepareStatement(sql);
ps.setInt(1, bookId);
rs = ps.executeQuery();
if(rs.next()){
book.setId(rs.getInt(1));
book.setBookName(rs.getString(2));
book.setBookAuthor(rs.getString(3));
book.setBookIsbn(rs.getString(4));
book.setBookPublish(rs.getString(5));
}
} catch (Exception e) {
e.printStackTrace();
} finally {
DBUtil.closeConn(conn, ps, null);
}
return book;
}
public boolean updateBook(Book book) {
Connection conn = DBUtil.getConn();
String sql = "update book set book_name = ?,book_author = ?,book_isbn = ?,book_publish = ? where id =?" ;
PreparedStatement ps = null;
int count = 0;
try {
ps = conn.prepareStatement(sql);
ps.setString(1, book.getBookName());
ps.setString(2, book.getBookAuthor());
ps.setString(3, book.getBookIsbn());
ps.setString(4, book.getBookPublish());
ps.setInt(5, book.getId());
count = ps.executeUpdate();
} catch (Exception e) {
e.printStackTrace();
} finally {
DBUtil.closeConn(conn, ps, null);
}
if (count > 0)
return true;
else
return false;
}
}
10.BookDao.java
package com.xxs.dao;
import java.util.List;
import com.xxs.bean.Book;
public interface BookDao {
/**
* 查詢所有圖書
* @return
*/
public List<Book> selectBooks();
/**
* 增加圖書
* @param book
* @return
*/
public boolean addBook(Book book);
/**
* 根據圖書ID刪除圖書
* @param bookId
* @return
*/
public boolean deleteBook(int bookId);
/**
* 根據圖書ID查詢圖書
* @param bookId
* @return
*/
public Book selectBookId(int bookId);
/**
* 更新圖書資訊
* @param book
* @return
*/
public boolean updateBook(Book book);
}
11.UserInterceptor.java
package com.xxs.interceptor;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
public class UserInterceptor extends AbstractInterceptor{
@Override
public String intercept(ActionInvocation invocation) throws Exception {
String user=(String) ActionContext.getContext().getSession().get("user");
if (user==null||"".equals(user)) {
return "fail";
}
return invocation.invoke();
}
}
12.BookServiceImpl.java
package com.xxs.service.impl;
import java.util.List;
import com.xxs.bean.Book;
import com.xxs.dao.BookDao;
import com.xxs.dao.impl.BookDaoImpl;
import com.xxs.service.BookService;
/*
* 作用1 資料的清洗
* 作用2 可以呼叫多個dao組合成頁面需要顯示的資料
*/
public class BookServiceImpl implements BookService{
/**
* 查詢所有圖書
* @return
*/
public List<Book> selectBooks() {
// TODO 從資料庫獲取內容進行資料組織
BookDao bookDao = new BookDaoImpl();
List<Book> books = bookDao.selectBooks();
return books;
}
/**
* 增加圖書
* @param book
* @return
*/
public boolean addBook(Book book) {
BookDao bookDao = new BookDaoImpl();
return bookDao.addBook(book);
}
/**
* 根據圖書ID刪除圖書
* @param bookId
* @return
*/
public boolean deleteBook(int bookId) {
BookDao bookDao = new BookDaoImpl();
return bookDao.deleteBook(bookId);
}
/**
* 根據圖書ID查詢圖書
* @param bookId
* @return
*/
public Book selectBookId(int bookId) {
BookDao bookDao = new BookDaoImpl();
Book book = bookDao.selectBookId(bookId);
return book;
}
/**
* 更新圖書資訊
* @param book
* @return
*/
public boolean updateBook(Book book) {
BookDao bookDao = new BookDaoImpl();
return bookDao.updateBook(book);
}
}
13.BookService.java
package com.xxs.service;
import java.util.List;
import com.xxs.bean.Book;
public interface BookService {
/**
* 查詢所有圖書
* @return
*/
public List<Book> selectBooks();
/**
* 增加圖書
* @param book
* @return
*/
public boolean addBook(Book book);
/**
* 根據圖書ID刪除圖書
* @param bookId
* @return
*/
public boolean deleteBook(int bookId);
/**
* 根據圖書ID查詢圖書
* @param bookId
* @return
*/
public Book selectBookId(int bookId);
/**
* 更新圖書資訊
* @param book
* @return
*/
public boolean updateBook(Book book);
}
14.DBUtil.java
package com.xxs.util;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class DBUtil {
public static Connection getConn() {
String url = "jdbc:sqlserver://localhost:1433;databaseName=MyDB";
String user = "sa";
String pwd = "1";
Connection conn = null;
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn = DriverManager.getConnection(url, user, pwd);
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return conn;
}
public static void closeConn(Connection conn, PreparedStatement ps,
ResultSet rs) {
try {
if (conn != null) {
conn.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
try {
if (ps != null) {
ps.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
try {
if (rs != null) {
rs.close();
}
} catch (SQLException e) {
e.printStackTrace();
}
}
}
15.struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="user" namespace="/user" extends="struts-default">
<action name="login" class="com.xxs.action.LoginAction" method="login">
<result name="success" type="chain">
<param name="actionName">bookList</param>
<param name="namespace">/book</param>
<param name="method">bookList</param>
</result>
<result name="fail">/user/login.jsp</result>
</action>
</package>
<package name="book" namespace="/book" extends="struts-default">
<interceptors>
<interceptor name="userInterceptor" class="com.xxs.interceptor.UserInterceptor"></interceptor>
<interceptor-stack name="selfStack">
<interceptor-ref name="userInterceptor"></interceptor-ref>
<interceptor-ref name="defaultStack"></interceptor-ref>
</interceptor-stack>
</interceptors>
<default-interceptor-ref name="selfStack"></default-interceptor-ref>
<global-results>
<result name="fail">/user/login.jsp</result>
</global-results>
<action name="bookList" class="com.xxs.action.BookAction" method="bookList">
<result name="success">/book/bookList.jsp</result>
</action>
<action name="toAddBook" class="com.xxs.action.BookAction"
method="toAddBook">
<result name="success">/book/addBook.jsp</result>
</action>
<action name="addBook" class="com.xxs.action.BookAction"
method="addBook">
<result name="success" type="chain">bookList
<!-- <param name="actionName">bookList</param>
<param name="namespace">/book</param>
<param name="method">bookList</param>-->
</result>
</action>
<action name="selectBookId" class="com.xxs.action.BookAction"
method="selectBookId">
<result name="success">/book/modifyBook.jsp</result>
</action>
<action name="updateBook" class="com.xxs.action.BookAction"
method="updateBook">
<result name="success" type="chain">bookList</result>
</action>
<action name="delBook" class="com.xxs.action.BookAction"
method="delBook">
<result name="success" type="chain">bookList</result>
</action>
</package>
</struts>16.web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<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>
建立資料庫
效果圖
