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我想將結果集轉換爲字符串。之後,我將使用該字符串來編寫一個html文件。課程是一個包含courseid(String),name(String),prerequisites(String)連接數據庫的表。這是我的代碼和想法。你能評估我的想法或給我一些更好的解決方案嗎?如何將ResultSet轉換爲Java中的字符串
private static void printRecordFromCourse() throws SQLException {
Connection dbConnection = null;
Statement stmt = null;
String printSQL = "SELECT * FROM course";
try {
dbConnection = getDBConnection();
stmt = dbConnection.createStatement();
ResultSet rs=stmt.executeQuery(printSQL);
while(rs.next()){
//Retrieve by column name
String courseid = rs.getString("courseid");
String name = rs.getString("name");
String prerequisites = rs.getString("prerequisites");
String result+ = "<tr><td>"+courseid+"</td><td>"+name+"</td><td>"+prerequisites"</td></tr>";
}
rs.close();
} catch (SQLException e) {
System.out.println(e.getMessage());
} finally {
if (stmt != null) {
dbConnection.close();
}
if (dbConnection != null) {
dbConnection.close();
}
}
}
上面的代碼是否存在一些錯誤?您可以使用一個類 - 課程並使用相應的getter/setter方法來訪問/更新值 – Excel
否我的意思是如何將結果集rs轉換爲字符串。我的程序工作正常 –
http://stackoverflow.com/questions/2317251/i-want-to-convert-a-resultset-to-a-string-i-have-tried-everything-but-it-always – Excel