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FindBook.java
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161 lines (150 loc) · 4.65 KB
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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) {
}
}
}