标签:修改 成功 code release exception else 使用 void except
public class JDBCDemo03 { //添加一条数据 @Test public void addOne() throws SQLException { //1.获取连接 Connection con = JDBCUtil.getConnect(); //2.定义sql语句,参数?代替 String sql = "insert into users(uid,uname,upass) values(?,?,?)"; //3.获取执行sql语句的PreparedStatement对象 PreparedStatement pstmt = con.prepareStatement(sql); //4.调用方法赋值 pstmt.setObject(1,"u005"); pstmt.setObject(2,"baoqiang"); pstmt.setObject(3,"baoqiang"); //5.执行增加操作 int result = pstmt.executeUpdate(); //6.处理结果 if (result >0){ System.out.println("添加一条记录成功"); }else { System.out.println("添加一条记录失败"); } //7.释放资源 JDBCUtil.release(con,pstmt,null); } //修改一条数据 @Test public void updateOne() throws SQLException { Connection con = JDBCUtil.getConnect(); String sql = "update users set upass=? where uid=?"; PreparedStatement pstmt = con.prepareStatement(sql); pstmt.setString(1,"qiangbao"); pstmt.setString(2,"u005"); int res = pstmt.executeUpdate(); if (res >0){ System.out.println("修改一条记录成功"); }else { System.out.println("修改一条记录失败"); } JDBCUtil.release(con,pstmt,null); } }
标签:修改 成功 code release exception else 使用 void except
原文地址:https://www.cnblogs.com/pxy-1999/p/13507191.html