仅供参考

import java.sql.Connection;

import java.sql.PreparedStatement;

import java.sql.ResultSet;

import com.fr.file.DatasourceManager;

import com.fr.script.AbstractFunction;

com.fr.data.impl.Connection conn = DatasourceManager.getInstance().getConnection("FRDemo");

Connection con = conn.createConnection();

String sql = "seletc(被屏蔽了) 字段 from 表 where 字段=?";

PreparedStatement preState = con.prepareStatement(sql);

preState.setString(1, args[0].toString());

ResultSet rs = preState.executeQuery();

while(rs.next()) {

    ...

}

没用过 不过你可以Debug看一下为撒空指针