myjdbcupdate_hua.java

java的团队合作代码

package com.jk.jdbc;
import java.sql.*;
public class MyJdbcUpdate_hua {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		//初始化四个变量
		String userName="wangrh";
		String passwd="wangrh";
		String driver="oracle.jdbc.OracleDriver";
		String url="jdbc:oracle:thin:@10.22.78.99:1521:XE";
		
		
		//定义jdbc操作的变量
		Connection conn=null;
		PreparedStatement pstmt=null;
		ResultSet rs=null;
		try{
			Class.forName(driver);
			conn=DriverManager.getConnection(url,userName,passwd);
			//String sql ="update test set NAME=? where ID=100";
			//pstmt=conn.prepareStatement(sql);
			//pstmt.setString(1,"hua");
			//或者可以写成
			
			String sql ="update test set name=? where id=?";
			pstmt=conn.prepareStatement(sql);
			pstmt.setString(1,"oaseqwe");
			pstmt.setInt(2,100);
			
			
			
			int result=pstmt.executeUpdate();
			System.out.println(result);
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			try{
				if(rs!=null) rs.close();
				if(pstmt!=null)pstmt.close();
				if(conn!=null)conn.close();
			}catch(Exception e){
				e.printStackTrace();
			}
		}
	}

}