The first method: inserting a first data
INSERT into ecom_order(MemberID,GoodsTotalCounts,GoodsTotalFee,SAID,OrderTime,Status,AddTime,Remark) VALUES(1016,5,360,8,now(),1,now(),'无')
Use the following query
SELECT
LAST_INSERT_ID(); 即可获取
The second method:
PreparedStatement pstmt = conn.prepareStatement (sql, Statement.RETURN_GENERATED_KEYS); // Get automatically increase the id
Complete wording (java language):
public int returnID(String sql) throws Exception {
// 检测数据库连接,若没有开启,则本方法自动启开,并在方法末尾自动关闭
boolean openConnHere = false;
if (conn == null) {
this.openConnection();
openConnHere = true;
}
// 准备执行SQL语句
java.sql.Statement stmt = (java.sql.Statement) conn.createStatement();
// 执行Sql语句并返回本条信息的主键ID
stmt.executeUpdate(sql, Statement.RETURN_GENERATED_KEYS);
int rValue = -1;
// 获取新插入记录id
ResultSet results = stmt.getGeneratedKeys();
if (results.next()) {
rValue = results.getInt(1);
}
// 若自动关闭连接开启,本方法结束的时候关闭连接
if (openConnHere) {
this.closeConnection();
}
return rValue;
}