自定義HTTPServlet中的請求方式:

本Markdown編輯器使用[StackEdit][6]修改而來，用它寫部落格，將會帶來全新的體驗哦：

• 應用中的所有對Servlet的請求都需要新增method=xxx的請求引數
• 在應用的Servlet類中, 只需要定義處理請求的方法:
• public void xxx(HttpServletRequest req, HttpServletResponse resp) throws ServletException,IOException { }

抽象類程式碼塊

public abstract class BaseServlet extends
 
 HttpServlet {
        private static final long serialVersionUID = 1L;
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) 
    throws ServletException,
    IOException {
    req.setCharacterEncoding("utf-8");          
    String methodName = req.getParameter("method");
    try
 
 {
    Method method = this.getClass().getMethod(methodName, 
    HttpServletRequest.class,HttpServletResponse.class);
       method.invoke(this, req, resp);
            } catch (Exception e) {
                //e.printStackTrace();
                Throwable cause = e.getCause();
                if(cause instanceof
 
 DBException) {
                throw new DBException(cause);
                }
            }
        }
        @Override
        protected void doPost(HttpServletRequest req, HttpServletResponse resp) 
           throws ServletException,
                IOException {
            doGet(req, resp);
        }