如何获取请求参数
<body>
<form action="http://localhost:8080/07_servlet/parameterServlet" method="get">
用户名:<input type="text" name="username"><br/>
密码:<input type="password" name="password"><br/>
兴趣爱好:<input type="checkbox" name="hobby" value="cpp">C++
<input type="checkbox" name="hobby" value="java">Java
<input type="checkbox" name="hobby" value="js">JavaScript<br/>
<input type="submit">
</form>
</body>
protected void doGet(HttpServletRequest req, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
// 获取请求参数
String username = req.getParameter("username");
String password = req.getParameter("password");
String[] hobby = req.getParameterValues("hobby");
System.out.println("用户名:" + username);
System.out.println("密码:" + password);
System.out.println("兴趣爱好:" + Arrays.asList(hobby));
}
servlet HttpServletRequest 类 2 获取请求参数
原文：https://www.cnblogs.com/superxuezhazha/p/12585794.html