「Java」SQLExceptionの使い方
書式
throw new SQLException(xxx)
使用例
//プレースホルダーuserid
String strSQL ="select * from usertbl where userid = ?";
PreparedStatement pstmt = null;
ResultSet rslt = null;
try {
//CallableStatementオブジェクトを生成
pstmt = conn.prepareCall(strSQL)
pstmt.setString(1,"202107");
//ResultSetオブジェクトを返す
rslt = pstmt.executeQuery();
if(!rslt.next()) {
throw new SQLException("not exist");
}
} catch(Exception e){
throw new SQLException("error" + e.getMessage());
}