我想insert在查询中使用该语句，但输出显示Unable to connect database. 我使用这种形式：
<form class="form-signin" action="CreateTeam.jsp">
<h2 class="form-signin-heading">Create new team</h2>
<input type="text" class="input-block-level" placeholder="Team name" name="name" id="name" required />
<input type="text" class="input-block-level" placeholder="Team description" name="desc" id="desc" required />
<button class="btn btn-large btn-primary" type="submit" >Create!</button>
</form>
我的jsp代码是：
<%
String name = request.getParameter("name");
String desc = request.getParameter("desc");
Connection connection = null;
PreparedStatement pstatement = null;
Class.forName("com.mysql.jdbc.Driver").newInstance();
int updateQuery = 0;
if (name != null && desc != null) {
if (name != "" && desc != "") {
try {
connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "root");
String queryString1 = "insert into teams (name,desc) values (?, ?)";
pstatement = connection.prepareStatement(queryString1);
pstatement.setString(1, name);
pstatement.setString(2, desc);
updateQuery = pstatement.executeUpdate();
if (updateQuery != 0) {
response.sendRedirect("../AdministrationControlPanel.jsp");
}
} catch (Exception ex) {
out.println("Unable to connect to database.");
} finally {
pstatement.close();
connection.close();
}
}
}
%>
数据库test在本地主机上运行。我正在修改它，但我不知道问题出在哪里。