package com.hanqi;
import java.io.IOException;
import java.sql.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class SaveUser
*/
public class SaveUser extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public SaveUser() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
//获取内容
String userID = request.getParameter("userid");
String userName = request.getParameter("username");
String pw = request.getParameter("password");
//判断输入的内容
if(userID == null || userID.trim().length() == 0)
{
response.getWriter().append("用户代码不能为空");
}
else if(userName == null || userName.trim().length() == 0)
{
response.getWriter().append("用户姓名不能为空");
}
else
{
try
{
//注册驱动
Class.forName("oracle.jdbc.driver.OracleDriver");
//连接URL
String url = "jdbc:oracle:thin:@localhost:1521:orcl";
//获取connection对象 （个人理解为登陆数据库 并将数据关联）
Connection conn = DriverManager.getConnection(url,"hanlin","123654789"); //url,名称，密码
//判断是否有数据
if(conn != null)
{
//操纵数据库
String sql = "insert into t_user (user_id，user_name,password) "
+ "values (?,?,?)";
//另外一种方法：
//String sql = "insert into t_user (user_id,user_name,password) values ('" + userID + "')";
//执行sql语句的类
PreparedStatement pps = conn.prepareStatement(sql);
//转码
userName = new String(userName.getBytes("ISO-8859-1"),"UTF-8");
//将操纵数据库中数据类名编下顺序便于输入
pps.setString(1, userID);
pps.setString(2, userName);
pps.setString(3, pw);
int row = pps.executeUpdate(); //执行sql语句并返回数据行数
if(row > 0)
{
response.getWriter().append("保存"+ row +"条数据成功");
}
else
{
response.getWriter().append("保存数据失败");
}
//关闭 释放资源
pps.close();
conn.close();
}
else
{
}
}
catch (ClassNotFoundException e) //仅捕获一类特定异常
{
// TODO Auto-generated catch block
e.printStackTrace();
response.getWriter().append(e.getMessage());
}
catch (Exception e) //捕获所有异常
{
// TODO Auto-generated catch block
e.printStackTrace();
response.getWriter().append(e.getMessage());
}
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
