String strSQL="insert into books(ISBN,bookname,press,author,address,pressDate,price,books_count,com) 完善代码
时间: 2024-01-07 19:05:36 浏览: 79
好的,下面是完善代码的步骤:
1. 首先,需要确定数据库表的结构,确保表中包含了所有的字段。
2. 在 Java 中,需要通过 JDBC 连接数据库并执行 SQL 语句。可以使用如下代码获取数据库连接:
```
Connection conn = DriverManager.getConnection(url, username, password);
```
其中,`url` 是数据库的连接字符串,`username` 和 `password` 是登录数据库所需要的用户名和密码。
3. 构造 SQL 语句,可以使用如下代码:
```
String strSQL = "insert into books(ISBN, bookname, press, author, address, pressDate, price, books_count, com) " +
"values('" + ISBN + "','" + bookname + "','" + press + "','" + author + "','" + address + "','" +
pressDate + "'," + price + "," + books_count + ",'" + com + "')";
```
其中,`ISBN`、`bookname`、`press`、`author`、`address`、`pressDate`、`price`、`books_count` 和 `com` 是要插入到数据库中的值。
4. 执行 SQL 语句,可以使用如下代码:
```
Statement stmt = conn.createStatement();
int result = stmt.executeUpdate(strSQL);
```
执行 SQL 语句后,可以获得受影响的行数。
5. 最后,需要关闭数据库连接和语句对象,可以使用如下代码:
```
stmt.close();
conn.close();
```
完整代码如下:
```
String strSQL = "insert into books(ISBN, bookname, press, author, address, pressDate, price, books_count, com) " +
"values('" + ISBN + "','" + bookname + "','" + press + "','" + author + "','" + address + "','" +
pressDate + "'," + price + "," + books_count + ",'" + com + "')";
Connection conn = DriverManager.getConnection(url, username, password);
Statement stmt = conn.createStatement();
int result = stmt.executeUpdate(strSQL);
stmt.close();
conn.close();
```
希望这个答案能够帮到你。
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