简单易懂的代码public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String method=request.getParameter("method");
if(method!=null){
if(method.equals("addcategory")){
addCategory(request, response);
}else if(method.equals("categorylist")){
categoryList(request, response);
}else if(method.equals("toUpdate")){
toUpdate(request, response);
}else if(method.equals("updateCategory")){
updateCategory(request, response);
}
}
else{
request.setAttribute("msg", "路径有误请重试");
request.getRequestDispatcher("/404.jsp").forward(request, response);
}
}
public void addCategory(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String name=request.getParameter("name");
String sortNo=request.getParameter("sortNo");
if(name==null||name.equals("")){
request.setAttribute("msg", "请输入分区名称");
request.getRequestDispatcher("/admin/category/addCategory.jsp").forward(request, response);
}else if(sortNo==null||sortNo.equals("")){
request.setAttribute("msg", "请输入分区序号");
request.getRequestDispatcher("/admin/category/addCategory.jsp").forward(request, response);
}else{
CategoryDao dao=new CategoryImpl();
Category category=new Category();
category.setName(name);
category.setSortNo(Integer.parseInt(sortNo));
category.setState(1);
boolean flag=dao.addCategory(category);
if(flag){
categoryList(request, response);
}else{
request.setAttribute("msg", "添加失败请重试");
request.getRequestDispatcher("/admin/category/addCategory.jsp").forward(request, response);
}
}
}
