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package database;

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import java.sql.SQLException;

import java.util.Arrays;

import java.util.Vector;

import javax.swing.JOptionPane;

import javax.swing.table.DefaultTableModel;

public class FindBook {

FindBook() {

}

// 显示所有图书

public static void allbook(DefaultTableModel model) {

Connection con = ConnectDatabase.connectDB();

PreparedStatement preSql;

ResultSet rs;

String sqlStr = "select * from booktable";

try {

preSql = con.prepareStatement(sqlStr);

rs = preSql.executeQuery();

while (rs.next()) {

int bookid = rs.getInt(1);

String category = rs.getString(2);

String bookname = rs.getString(3);

String author = rs.getString(4);

String press = rs.getString(5);

String state = rs.getString(6);

model.addRow(new Vector<>(Arrays.asList(bookid, category, bookname, author, press, state)));

}

con.close();

} catch (SQLException e) {

}

}

// 按类别查找图书

public static void findcategory(DefaultTableModel model, String CateGory) {

Connection con = ConnectDatabase.connectDB();

PreparedStatement preSql;

ResultSet rs;

CateGory = "%" + CateGory + "%";

String sqlStr = "select * from booktable where category like ?";

try {

preSql = con.prepareStatement(sqlStr);

preSql.setString(1, CateGory);

rs = preSql.executeQuery();

boolean flag = false;

while (rs.next()) {

flag = true;

int bookid = rs.getInt(1);

String category = rs.getString(2);

String bookname = rs.getString(3);

String author = rs.getString(4);

String press = rs.getString(5);

String state = rs.getString(6);

model.addRow(new Vector<>(Arrays.asList(bookid, category, bookname, author, press, state)));

}

if (!flag) {

JOptionPane.showMessageDialog(null, "图书不存在", "警告", JOptionPane.WARNING_MESSAGE);

}

con.close();

} catch (SQLException e) {

}

}

// 按书名查找图书

public static void findbookname(DefaultTableModel model, String BookName) {

Connection con = ConnectDatabase.connectDB();

PreparedStatement preSql;

ResultSet rs;

BookName = "%" + BookName + "%";

String sqlStr = "select * from booktable where bookname like ?";

try {

preSql = con.prepareStatement(sqlStr);

preSql.setString(1, BookName);

rs = preSql.executeQuery();

boolean flag = false;

while (rs.next()) {

flag = true;

int bookid = rs.getInt(1);

String category = rs.getString(2);

String bookname = rs.getString(3);

String author = rs.getString(4);

String press = rs.getString(5);

String state = rs.getString(6);

model.addRow(new Vector<>(Arrays.asList(bookid, category, bookname, author, press, state)));

}

if (!flag) {

JOptionPane.showMessageDialog(null, "图书不存在", "警告", JOptionPane.WARNING_MESSAGE);

}

con.close();

} catch (SQLException e) {

}

}

// 按作者查找图书

public static void findauthor(DefaultTableModel model, String Author) {

Connection con = ConnectDatabase.connectDB();

PreparedStatement preSql;

ResultSet rs;

Author = "%" + Author + "%";

String sqlStr = "select * from booktable where author like ?";

try {

preSql = con.prepareStatement(sqlStr);

preSql.setString(1, Author);

rs = preSql.executeQuery();

boolean flag = false;

while (rs.next()) {

flag = true;

int bookid = rs.getInt(1);

String category = rs.getString(2);

String bookname = rs.getString(3);

String author = rs.getString(4);

String press = rs.getString(5);

String state = rs.getString(6);

model.addRow(new Vector<>(Arrays.asList(bookid, category, bookname, author, press, state)));

}

if (!flag) {

JOptionPane.showMessageDialog(null, "图书不存在", "警告", JOptionPane.WARNING_MESSAGE);

}

con.close();

} catch (SQLException e) {

}

}

// 按书号查找图书

public static void findbookid(DefaultTableModel model, int BookId) {

Connection con = ConnectDatabase.connectDB();

PreparedStatement preSql;

ResultSet rs;

String sqlStr = "select * from booktable where bookid = ?";

try {

preSql = con.prepareStatement(sqlStr);

preSql.setInt(1, BookId);

rs = preSql.executeQuery();

boolean flag = false;

while (rs.next()) {

flag = true;

int bookid = rs.getInt(1);

String category = rs.getString(2);

String bookname = rs.getString(3);

String author = rs.getString(4);

String press = rs.getString(5);

String state = rs.getString(6);

model.addRow(new Vector<>(Arrays.asList(bookid, category, bookname, author, press, state)));

}

if (!flag) {

JOptionPane.showMessageDialog(null, "图书不存在", "警告", JOptionPane.WARNING_MESSAGE);

}

con.close();

} catch (SQLException e) {

}

}

}