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  • day33-4用java的jdbc查看数据库中表的内容

    package zuoye;

    import java.math.BigDecimal;
    import java.sql.Connection;
    import java.sql.Date;
    import java.sql.PreparedStatement;
    import java.sql.ResultSet;

    public class text3 {
    public static void main(String[] args) {
    Connection conn =null;
    PreparedStatement pre =null;
    ResultSet re =null;
    try {
    conn = zuoye.getConnection();
    String s = "select *from emp";
    pre = conn.prepareStatement(s);
    re = pre.executeQuery(s);
    while(re.next()){
    int a = re.getInt("id");
    String a1 = re.getString("ename");
    int a2 = re.getInt("job_id");
    int a3 = re.getInt("mgr");
    Date a4 = re.getDate("joindate");
    BigDecimal a5 = re.getBigDecimal("salary");
    BigDecimal a6 = re.getBigDecimal("bonus");
    int a7 = re.getInt("dept_id");
    System.out.println(a+" "+a1+" "+a2+" "+a3+" "+a4+" "+a5+" "+a6+" "+a7);
    }
    } catch (Exception e) {
    e.printStackTrace();
    }finally {
    zuoye.a(conn,pre,re);
    }

    }
    }
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  • 原文地址:https://www.cnblogs.com/hfew/p/10640377.html
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