利用java和sqlserver建立簡易圖書管理系統(tǒng)的完整步驟
1.所需功能:
游覽所有圖書、查找書籍、建立新圖書,借出和歸還圖書,刪除某一圖書
2.流程:
數(shù)據(jù)庫連接
- 選擇需要的操作
- 釋放連接
3.環(huán)境及其語言:
Idea,JDK13,驅動包Microsoft JDBC Driver 8.2.2 for SQL Server
4.數(shù)據(jù)庫建立
- 數(shù)據(jù)庫:sqlserver2019
- Database:library
- Table:Book
- Book:書籍編號,書籍名稱,書籍作者,庫存量
- 管理員名:sa
- 密碼:123456
5.操作:
數(shù)據(jù)庫連接:sql.T3.Test1.java
官網(wǎng)下載驅動包Microsoft JDBC Driver 8.2.2 for SQL Server并加載到程序中。
//注冊驅動 DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver()); //建立連接 String dbUL="jdbc:sqlserver://localhost:1433;DatabaseName=Library"; String Name="sa"; String Paw="123456"; conn=DriverManager.getConnection(dbUL,Name,Paw);
選擇需要的操作:sql.T3.Test1.java
1.游覽所有圖書
try{
DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver());
conn = DriverManager.getConnection(dbUL, Name, Paw);
st = conn.createStatement();
sql = "select * from Book";
rs = st.executeQuery(sql);
while (rs.next()){
int id = rs.getInt("id");
String name = rs.getString("name");
String aut = rs.getString("aut");
int num = rs.getInt("num");
System.out.println("id=" + id + " name=" + name + " aut:" + aut + " num:" + num);
}
}catch (SQLException e){
e.printStackTrace();
}finally{
JDBCUtil.release(conn, st, rs);
}
2.查找書籍
try{
DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver());
conn = DriverManager.getConnection(dbUL, Name, Paw);
st = conn.createStatement();
System.out.println("查找方式:1.按編號查找;2.按書名查找;3.按作者查找;4.放棄操作;");
b_h2 = sc.nextInt();
f_l = true;
switch (b_h2){
case 1:
System.out.println("輸入書籍編號:");
book_num = sc.nextInt();
sql1 = "select * from Book where id=" + book_num;
break;
case 2:
System.out.println("輸入書籍名稱:");
book_name = sc.next();
sql1 = "select * from Book where name='" + book_name + "'";
break;
case 3:
System.out.println("輸入書籍作者:");
author = sc.next();
sql1 = "select * from Book where id='" + author + "'";
break;
case 4:
f_l = false;
break;
}
if (f_l){
sql = sql1;
rs = st.executeQuery(sql);
while (rs.next()){
int id = rs.getInt("id");
String name = rs.getString("name");
String aut = rs.getString("aut");
int num = rs.getInt("num");
System.out.println("id=" + id + " name=" + name + " aut:" + aut + " num:" + num);
}
}
else
System.out.println("對象已放棄操作");
}catch (SQLException e){
e.printStackTrace();
}finally{
JDBCUtil.release(conn, st, rs);
}
3.建立新圖書
try{
DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver());
conn = DriverManager.getConnection(dbUL, Name, Paw);
st = conn.createStatement();
System.out.println("書籍導入:請依次輸入書籍的編號、書名、作者和導入數(shù)量:");
book_id = sc.nextInt();
book_name = sc.next();
author = sc.next();
book_num = sc.nextInt();
sql1 = "insert into Book values(" + book_id + ",'" + book_name + "','" + author + "'," + book_num + ")";
st.executeUpdate(sql1);
}catch (SQLException e){
e.printStackTrace();
}finally{
JDBCUtil.release(conn, st);
}
4借出圖書
try{
DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver());
conn = DriverManager.getConnection(dbUL, Name, Paw);
st = conn.createStatement();
System.out.println("查找方式:1.按編號查找;2.按書名查找;3.按作者查找;4.放棄操作;");
b_h2 = sc.nextInt();
f_l = true;
switch (b_h2){
case 1:
System.out.println("輸入書籍編號:");
book_num = sc.nextInt();
sql1 = "select * from Book where id=" + book_num;
break;
case 2:
System.out.println("輸入書籍名稱:");
book_name = sc.next();
sql1 = "select * from Book where name='" + book_name + "'";
break;
case 3:
System.out.println("輸入書籍作者:");
author = sc.next();
sql1 = "select * from Book where id='" + author + "'";
break;
case 4:
f_l = false;
break;
}
if (f_l){
sql = sql1;
rs = st.executeQuery(sql);
while (rs.next()){
int id = rs.getInt("id");
String name = rs.getString("name");
String aut = rs.getString("aut");
int num = rs.getInt("num");
System.out.println("id=" + id + " name=" + name + " aut:" + aut + " num:" + num);
b_h = num;
book_id = id;
}
System.out.println("確認借出:確認:1,取消:2");
b_h2 = sc.nextInt();
if (b_h2 == 1){
if (b_h == 0)
System.out.println("館藏書目為0,無法借出");
else{
b_h--;
sql1 = "UPDATE Book SET num=" + b_h + "WHERE id =" + book_id;
st.executeUpdate(sql1);
}
}
else
System.out.println("你已取消操作");
}
else
System.out.println("對象已放棄操作");
}catch (SQLException e)
{
e.printStackTrace();
}finally{
JDBCUtil.release(conn, st, rs);
}
5. 歸還圖書刪除某一圖書
try{
DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver());
conn = DriverManager.getConnection(dbUL, Name, Paw);
st = conn.createStatement();
System.out.println("輸入歸還書id:");
book_id = sc.nextInt();
sql = "select * from Book where id=" + book_id;
rs = st.executeQuery(sql);
while (rs.next()){
int id = rs.getInt("id");
String name = rs.getString("name");
String aut = rs.getString("aut");
int num = rs.getInt("num");
System.out.println("id=" + id + " name=" + name + " aut:" + aut + " num:" + num);
b_h = num;
}
b_h++;
sql1 = "UPDATE Book SET num=" + b_h + "WHERE id =" + book_id;
st.executeUpdate(sql1);
}catch (SQLException e){
e.printStackTrace();
}finally{
JDBCUtil.release(conn, st, rs);
}
6.刪除某一圖書
try{
DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver());
conn = DriverManager.getConnection(dbUL, Name, Paw);
st = conn.createStatement();
System.out.println("輸入刪除書id:");
book_id = sc.nextInt();
sql1 = "delete from Book where id=" + book_id;
st.executeUpdate(sql1);
}catch (SQLException e){
e.printStackTrace();
}finally{
JDBCUtil.release(conn, st, rs);
}
釋放連接: sql.T1.JDBCUtil.java
public static void release(Connection conn, Statement st, ResultSet rs)//當rs不為空時
{
closeRs(rs);
closeSt(st);
closeConn(conn);
}
public static void release(Connection conn, Statement st)// 當rs為空時
{
closeSt(st);
closeConn(conn);
}
6.運行結果演示
sqlserver中的部分數(shù)據(jù):

idea中的演示結果:
顯示書籍:

查找書籍及借出:

歸還書籍及刪除書籍:

總結
到此這篇關于利用java和sqlserver建立簡易圖書管理系統(tǒng)的文章就介紹到這了,更多相關java和sqlserver圖書管理系統(tǒng)內容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關文章希望大家以后多多支持腳本之家!
相關文章
Spring Cloud Eureka 服務上下線監(jiān)控的實現(xiàn)
這篇文章主要介紹了Spring Cloud Eureka 服務上下線監(jiān)控的實現(xiàn),小編覺得挺不錯的,現(xiàn)在分享給大家,也給大家做個參考。一起跟隨小編過來看看吧2018-09-09
Java實現(xiàn)一個達達租車系統(tǒng)的步驟詳解
這篇文章主要給大家介紹了利用Java實現(xiàn)一個達達租車系統(tǒng)的步驟,文中給出了詳細的實現(xiàn)思路和示例代碼,并在文末給出了完整的源碼供大家學習下載,需要的朋友可以參考借鑒,下面來一起看看吧。2017-04-04
Spring Cloud Stream分區(qū)分組原理圖解
這篇文章主要介紹了Spring Cloud Stream的分區(qū)和分組,文中通過示例代碼介紹的非常詳細,對大家的學習或者工作具有一定的參考學習價值,需要的朋友可以參考下2020-03-03
java.text.DecimalFormat類十進制格式化
這篇文章主要為大家詳細介紹了java.text.DecimalFormat類十進制格式化的方法,具有一定的參考價值,感興趣的小伙伴們可以參考一下2018-03-03

