java.sql.SQLException : ORA-00933: SQL command not properly ended 异常

Question

我想要完成的是能够编写 SQL 语句并验证结果。 SQL 语句中会有变量，例如:

String sql = "Select  zoneid from zone where zonename = myZoneName";

myZoneName 是从 count + 生成的

注意:我使用 Apache POI 来解析 Excel 电子表格。

代码如下:

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Properties;

import org.apache.log4j.Logger;
import org.junit.Test;

public class VerifyDBSingleDomain {

    static Logger log = Logger.getLogger(VerifyDBSingleDomain.class.getName());

    String url = "jdbc:oracle:thin:@a.b.c.d:1521:mname";

    @Test
    public void VerifyDBSingleDomainTest() throws SQLException {

        Properties props = new Properties();
        props.setProperty("user", "user");
        props.setProperty("password", "password");

        String sql = "Select  zoneid from zone where zonename = 99224356787.tv";
        //String sql = "Select * from zone";

        Connection conn;
        //try {
            conn = DriverManager.getConnection(url, props);
            PreparedStatement preStatement = conn.prepareStatement(sql);
            ResultSet result = preStatement.executeQuery();
            System.out.println(result);

            /*while (result.next()) {
                System.out.println(result.toString());
            }
        } catch (SQLException e) {

            e.printStackTrace();
        }*/

    //  }
    //}

    }
}

我得到错误:

java.sql.SQLException: ORA-00933: SQL command not properly ended

Answer 1

假设 myZoneName 是文本类型，您应该在 WHERE 子句中使用单引号:

String sql = "Select zoneid from zone where zonename = '99224356787.tv'";

假设 zoneid 是 INTEGER 类型，使用以下代码显示它:

while (result.next()) { 
   System.out.println(result.getInt("zoneid");
}