/**
* 处理Service返回状态
*
* @param status
* @param request
* @param response
* @param session
* @throws IOException
*/
private void handleStatus(
int status, HttpServletRequest request, HttpServletResponse response, HttpSession session)
throws IOException {
switch (status) {
case GroupService.OWNER_CAN_NOT_DROP_OUT:
WebUtils.setResponseMessage(
response,
"error",
"handlegroupmember_owner_not_deleted",
session.getId(),
request.getLocale());
break;
case GroupService.SUCCESS:
WebUtils.setResponseBean(response, "success", null, session.getId(), request.getLocale());
break;
case GroupService.UID_NOT_OWNER:
WebUtils.setResponseMessage(
response, "error", "handlegroupmember_not_owner", session.getId(), request.getLocale());
break;
case GroupService.USER_NOT_INT_GROUP:
WebUtils.setResponseMessage(
response,
"error",
"handlegroupmember_user_not_in_group",
session.getId(),
request.getLocale());
break;
default:
break;
}
}
/**
* 处理踢出群成员
*
* @param request
* @param response
* @param user
* @param session
* @param groupIdInt
* @throws IOException
*/
private void deleteMember(
HttpServletRequest request,
HttpServletResponse response,
User user,
HttpSession session,
int groupIdInt)
throws IOException {
GroupService groupService = new GroupServiceImpl();
String deleteId = request.getParameter("deleteId");
if (deleteId == null || deleteId.trim().equals("")) {
// deleteId为空异常
WebUtils.setResponseMessage(
response,
"error",
"handlegroupmember_deleteid_null",
session.getId(),
request.getLocale());
return;
}
int deleteIdInt = 0;
try {
deleteIdInt = Integer.parseInt(deleteId);
} catch (Exception e) {
// deleteId不是int
WebUtils.setResponseMessage(
response,
"error",
"handlegroupmember_deleteid_error",
session.getId(),
request.getLocale());
return;
}
try {
int status = groupService.dropOutGroup(user.getUid(), deleteIdInt, groupIdInt, false);
handleStatus(status, request, response, session);
} catch (UserNotExistException e) {
WebUtils.setResponseMessage(
response, "error", "error_uid_not_exist", session.getId(), request.getLocale());
return;
} catch (GroupNotExistException e) {
WebUtils.setResponseMessage(
response, "error", "error_gid_not_exist", session.getId(), request.getLocale());
return;
}
}
/**
* The doPost method of the servlet. <br>
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html;charset=utf-8");
User user = null;
// 检测登录状态，通过session拿回user对象
// getSession(false),如果用户不登陆的话是不会有session存在的
HttpSession session = request.getSession(false);
if (session == null) {
user = WebUtils.login(request);
if (user != null) {
session = request.getSession(false);
session.setAttribute("user", user);
} else {
// 未登录状态
WebUtils.setResponseMessage(
response, "error", "error_not_login", null, request.getLocale());
return;
}
} else user = (User) session.getAttribute("user");
if (user == null) {
user = WebUtils.login(request);
if (user != null) {
session = request.getSession(false);
session.setAttribute("user", user);
} else {
// 未登录状态
WebUtils.setResponseMessage(
response, "error", "error_not_login", null, request.getLocale());
return;
}
}
// 处理标记
String handleType = request.getParameter("handleType");
if (handleType == null || handleType.trim().equals("")) {
// handleType为空异常
WebUtils.setResponseMessage(
response, "error", "handlegroup_handletype_null", session.getId(), request.getLocale());
return;
}
// 要处理的群id
String groupId = request.getParameter("groupId");
if (groupId == null || groupId.trim().equals("")) {
// groupId为空异常
WebUtils.setResponseMessage(
response, "error", "userfile_gid_null", session.getId(), request.getLocale());
return;
}
// 群id转换成int
int groupIdInt = 0;
try {
groupIdInt = Integer.parseInt(groupId);
} catch (Exception e) {
// groupId不是int
WebUtils.setResponseMessage(
response, "error", "userfile_gid_error", session.getId(), request.getLocale());
return;
}
if (handleType.equals("addmember")) {
// 加入群
GroupService groupService = new GroupServiceImpl();
try {
Group group = groupService.add2Group(user.getUid(), groupIdInt);
if (group != null) {
// 添加成功，返回添加后的群实体
WebUtils.setResponseBean(
response, "success", group, session.getId(), request.getLocale());
return;
} else {
// 添加失败，返回失败信息
WebUtils.setResponseMessage(
response, "error", "error_exist_in_group", session.getId(), request.getLocale());
return;
}
} catch (UserNotExistException e) {
WebUtils.setResponseMessage(
response, "error", "error_uid_not_exist", session.getId(), request.getLocale());
return;
} catch (GroupNotExistException e) {
WebUtils.setResponseMessage(
response, "error", "error_gid_not_exist", session.getId(), request.getLocale());
return;
}
} else if (handleType.equals("deletemember")) {
// 踢出群成员
deleteMember(request, response, user, session, groupIdInt);
return;
} else if (handleType.equals("exitgroup")) {
// 退出群
GroupService groupService = new GroupServiceImpl();
try {
int status = groupService.dropOutGroup(user.getUid(), user.getUid(), groupIdInt, true);
handleStatus(status, request, response, session);
} catch (UserNotExistException e) {
WebUtils.setResponseMessage(
response, "error", "error_uid_not_exist", session.getId(), request.getLocale());
return;
} catch (GroupNotExistException e) {
WebUtils.setResponseMessage(
response, "error", "error_gid_not_exist", session.getId(), request.getLocale());
return;
}
} else if (handleType.equals("dissolve")) {
// 解散群
GroupService groupService = new GroupServiceImpl();
try {
int status = groupService.dissolveGroup(user.getUid(), groupIdInt);
handleStatus(status, request, response, session);
} catch (GroupNotExistException e) {
WebUtils.setResponseMessage(
response, "error", "error_gid_not_exist", session.getId(), request.getLocale());
return;
}
} else {
// 没有该处理标记
WebUtils.setResponseMessage(
response, "error", "handlegroup_handletype_null", session.getId(), request.getLocale());
}
} catch (Exception e) {
e.printStackTrace();
// 服务器未知异常,反馈信息
WebUtils.setResponseMessage(response, "error", "error_server", null, request.getLocale());
}
}