我想使用 jsp 代码将行插入 mysql 数据库,但我不能。 这是我的 jsp 代码,没有 html 表单:
<%
String login = request.getParameter("login");
String password = request.getParameter("password");
String full_name = request.getParameter("full_name");
String ulevel = request.getParameter("ulevel");
String team_id = request.getParameter("team_id");
Connection connection = null;
PreparedStatement pstatement = null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
int updateQuery = 0;
if(login!=null && password!=null && full_name!=null && ulevel!=null && team_id!=null){
if(login!="" && password!="" && full_name!="" && ulevel!="" && team_id!="") {
try {
connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/android","root","root");
String queryString = "INSERT INTO users(user_id,login,password,full_name,ulevel,team_id) VALUES (null, ?, ?, ?, ?, ?)";
pstatement = connection.prepareStatement(queryString);
pstatement.setString(2, login);
pstatement.setString(3, password);
pstatement.setString(4, full_name);
pstatement.setString(5, ulevel);
pstatement.setString(6, team_id);
updateQuery = pstatement.executeUpdate();
if (updateQuery != 0) { %>
当我按“提交”时,网页会显示以下内容:
type Status report message descriptionThe requested resource () is not available.
p.s.:列user_id
在mysql表中设置为autoincrement
,所以我使用null
。
但我不知道,这是正确的方法......
我从 netbeans 7.0.1 运行代码
最佳答案
由于 ID
是自动递增,因此将其从列表中删除,preparedstatement 正在其参数上查找索引 1
。
String queryString = "INSERT INTO users(login,password,full_name,ulevel,team_id) VALUES (?, ?, ?, ?, ?)";
pstatement = connection.prepareStatement(queryString);
pstatement.setString(1, login);
pstatement.setString(2, password);
pstatement.setString(3, full_name);
pstatement.setString(4, ulevel);
pstatement.setString(5, team_id);
下面这个未经测试
只需以 1
开始参数,因为只需要定义 5 个参数。
String queryString = "INSERT INTO users(user_id,login,password,full_name,ulevel,team_id) VALUES (null, ?, ?, ?, ?, ?)";
pstatement = connection.prepareStatement(queryString);
pstatement.setString(1, login);
pstatement.setString(2, password);
pstatement.setString(3, full_name);
pstatement.setString(4, ulevel);
pstatement.setString(5, team_id);
关于mysql - 使用jsp向MySQL表插入一行,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13330014/