我获取的请求为什么和大家不一样
org.apache.catalina.connector.RequestFacade@5cca7f61
严重: Servlet.service() for servlet [wechatServerlet] in context with path [/wechat] threw exception
java.lang.NullPointerException
at wechat.wechat_serverlet.doPost(wechat_serverlet.java:40)
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
req.setCharacterEncoding("UTF-8");
resp.setCharacterEncoding("UTF-8");
System.out.println("weiqing.cao " + req);
PrintWriter out = resp.getWriter();
try {
Map<String, String> map = wechat_message.xmlToMap(req);
String toUserName = map.get("ToUserName");
我的控制台打印出来的不是xml，这里获取不到标签报了空指针什么原因？
