當(dāng)我嘗試運(yùn)行此程序時(shí)，出現(xiàn)此異常。這是微軟的例子之一。我已經(jīng)通過項(xiàng)目屬性將sqljdbc4.jar添加到了netbeans的類路徑中，以便進(jìn)行編譯和運(yùn)行。我還測試了可以使用下面的import語句找到該類-編譯期間沒有錯(cuò)誤，因此它必須找到j(luò)ar?？赡芘csqldbc4.jar引用的dll或某些sql dll相關(guān)嗎？這是確切的例外，下面是確切的代碼（密碼除外）。例外：run:java.sql.SQLException: No suitable driver found for jdbc:microsoft:sqlserver://localhost:1433;databaseName=HealthCareDatabaseError Trace in getConnection() : No suitable driver found for jdbc:microsoft:sqlserver://localhost:1433;databaseName=HealthCareDatabaseError: No active Connection    at java.sql.DriverManager.getConnection(DriverManager.java:602)    at java.sql.DriverManager.getConnection(DriverManager.java:185)    at javaapplication1.Connect.getConnection(Connect.java:35)    at javaapplication1.Connect.displayDbProperties(Connect.java:50)    at javaapplication1.JavaApplication1.main(JavaApplication1.java:23)BUILD SUCCESSFUL (total time: 1 second)碼： package javaapplication1;import com.microsoft.sqlserver.jdbc.SQLServerDriver;import java.*;public class Connect {    private java.sql.Connection con = null;    private final String url = "jdbc:microsoft:sqlserver://";    private final String serverName = "localhost";    private final String portNumber = "1433";    private final String databaseName = "HealthCareDatabase";    private final String userName = "larry";    private final String password = "xxxxxxx";    // Constructor    public Connect() {    }    private String getConnectionUrl() {        return url + serverName + ":" + portNumber + ";databaseName=" + databaseName ;    }