说是小问题。。。调试了一天气死了
![](https://images.cnblogs.com/OutliningIndicators/ExpandedBlockStart.gif)
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String username = request.getParameter("username");
String password = request.getParameter("password");
response.setContentType( "text/html;utf-8");
response.setCharacterEncoding("utf-8");
PrintWriter writer = response.getWriter();
if(null != username && null != password) {
if(username.equals("") || password.equals("")) {
writer.println("don't post empty value");
} else {
if(username.equalsIgnoreCase("xc") && password.equalsIgnoreCase("123")) {
writer.println("ok");
} else {
writer.println("error");
}
}
response.flushBuffer();
}
}
很简单的提交,返回
ok后面直接多了个%0D%0A,
今天才知道,println啊…………………………
全部改成print就对了。。。