get方式和post方式可以统一解析，doPost方式转给doGet方式使用getParameterMap()转为Map解析。
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
Map<String, String[]> map = req.getParameterMap();
for (String key : map.keySet()) {
System.out.print(key + ":");
String[] values = map.get(key);
for (String value : values) {
System.out.print(value + " ");
}
System.out.println();
}
//System.out.println(map);
//System.out.println(map.get("username"));
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doGet(req, resp);
}
获取所有参数集合
Map<String, String[]> map = req.getParameterMap();
获取单个参数的值【返回单个数值】
String uName = req.getParameter("name");
获取参数的值【返回数组】
String[] uNames = req.getParameterValues("names");
请求中文乱码
解决post方式请求方式
req.setCharacterEncoding("UTF-8");
String username = req.getParameter("username");
System.out.println("姓名：" + username);
