java.lang.UnsatisfiedLinkError：查找函数“ DBSetting”时出错：找不到指定的过程

Question

我试图从Java调用dll函数，但总是收到此错误代码“ java.lang.UnsatisfiedLinkError：查找函数'DBSetting'时出错：找不到指定的过程。”。 试图使用JNA从Java调用dll文件。 Java文件：

public interface test extends Library{

    test mathFuncs = (test)Native.loadLibrary("BCE.Utils", test.class);
    DBSetting1 DBSetting(int dbServerType , String serverName, String userId, String password, String dbName);
}

具有（命名空间BCE.Data）的dll文件

public sealed class DBSetting : IDisposable
{
    public DBSetting(DBServerType serverType, string connectionString);
    public DBSetting(DBServerType serverType, string serverName, string dbName);
    public DBSetting(DBServerType serverType, string serverName, string dbName, bool usePool);
    public DBSetting(DBServerType serverType, string serverName, string userId, string password, string dbName);
    public DBSetting(DBServerType serverType, string serverName, string userId, string password, string dbName, bool usePool);

    public string ServerName { get; }
    public string DBName { get; }
    public string ConnectionString { get; }
    public int CommandTimeOut { get; set; }
    public bool StoredProcedure { get; set; }
    public string PrivateDataPath { get; }
    public DBServerType ServerType { get; }
    public string PrivateCachingDataPath { get; }
    public string PrivateCriteriaDataPath { get; }
    [Obsolete("You should not access to Connection object to associate it to a SqlCommand. Instead, you better use CreateCommand to create your own SqlCommand.")]
    public SqlConnection Connection { get; }
    public int TransactionLevel { get; }
    [Obsolete("You should not access to Transaction object to associate it to a SqlCommand. Instead, you better use CreateCommand to create your own SqlCommand.")]
    public SqlTransaction Transaction { get; }

    public event BeforeOpenConnectionEventHandler BeforeOpenConnectionEvent;

    public static DBSetting CreateAutoCountDefaultDBSetting(string serverName, string dbName);
    [Obsolete("You should use StartTransaction instead.")]
    public SqlTransaction BeginTransaction();
    [Obsolete("You should change to StartTransaction to make the coding simple yet elegant.")]
    public DBSetting BeginTransaction(bool alwaysUseTransaction, out SqlConnection conn, out SqlTransaction tran);
    public void Commit();
    public DBSetting Copy();
    [Obsolete("You should use StartTransaction instead. CopyForTransaction method will be removed in the future.")]
    public DBSetting CopyForTransaction();
    public DBSetting CopyWithNewDBName(string newDBName);
    public SqlCommand CreateCommand();
    public SqlCommand CreateCommand(string cmdText, params object[] parameters);
    public void Dispose();
    public void EndTransaction();
    public int ExecuteNonQuery(string cmdText, params object[] parameters);
    public object ExecuteScalar(string cmdText, params object[] parameters);
    public DataTable GetDataTable(string cmdText, bool loadSchema, params object[] parameters);
    public DataRow GetFirstDataRow(string cmdText, params object[] parameters);
    public DataTable GetSchema(string selectCmdText);
    public DateTime GetServerTime();
    public int LoadDataSet(DataSet ds, string tableName, string cmdText, bool loadSchema, params object[] parameters);
    public int LoadDataTable(DataTable table, string cmdText, bool loadSchema, params object[] parameters);
    public void LoadSchema(DataTable table, string selectCmdText);
    public void LoadSchema(DataSet ds, string tableName, string selectCmdText);
    public void Rollback();
    public int SimpleSaveDataSet(DataSet ds, string tableName, string selectCmdText, bool returnIdentityColumnValue);
    public int SimpleSaveDataSet(DataSet ds, string tableName, string selectCmdText);
    public int SimpleSaveDataTable(DataTable table, string selectCmdText, bool returnIdentityColumnValue);
    public int SimpleSaveDataTable(DataTable table, string selectCmdText);
    public DBSetting StartTransaction(int commandTimeout);
    public DBSetting StartTransaction();
    public void ThrowServerTypeNotSupportedException();
}

//Error will show after >> this line.
DBSetting mathFuncs = DBSetting.mathFuncs;
>>DBSetting1 myDb = (DBSetting1) mathFuncs.DBSetting(DBServerType.Firebird, "", "", "", "");