org.eclipse.jetty.servlet
类 StatisticsServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          org.eclipse.jetty.servlet.StatisticsServlet

所有已实现的接口：

Serializable, Servlet, ServletConfig

public class StatisticsServlet
extends HttpServlet

另请参见：

序列化表格

构造方法摘要

StatisticsServlet()

方法摘要

protected void	doGet(HttpServletRequest req, HttpServletResponse resp) Called by the server (via the service method) to allow a servlet to handle a GET request.
void	doPost(HttpServletRequest sreq, HttpServletResponse sres) Called by the server (via the service method) to allow a servlet to handle a POST request.
void	init() A convenience method which can be overridden so that there's no need to call super.init(config).

从类 javax.servlet.http.HttpServlet 继承的方法

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

从类 javax.servlet.GenericServlet 继承的方法

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

从类 java.lang.Object 继承的方法

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造方法详细信息

StatisticsServlet

public StatisticsServlet()

方法详细信息

init

public void init()
          throws ServletException

从类 GenericServlet 复制的描述

A convenience method which can be overridden so that there's no need to call super.init(config).

Instead of overriding GenericServlet.init(ServletConfig), simply override this method and it will be called by GenericServlet.init(ServletConfig config). The ServletConfig object can still be retrieved via GenericServlet.getServletConfig().

覆盖：

类 GenericServlet 中的 init

抛出：

ServletException - if an exception occurs that interrupts the servlet's normal operation

doPost

public void doPost(HttpServletRequest sreq,
                   HttpServletResponse sres)
            throws ServletException,
                   IOException

从类 HttpServlet 复制的描述

Called by the server (via the service method) to allow a servlet to handle a POST request. The HTTP POST method allows the client to send data of unlimited length to the Web server a single time and is useful when posting information such as credit card numbers.

When overriding this method, read the request data, write the response headers, get the response's writer or output stream object, and finally, write the response data. It's best to include content type and encoding. When using a PrintWriter object to return the response, set the content type before accessing the PrintWriter object.

The servlet container must write the headers before committing the response, because in HTTP the headers must be sent before the response body.

Where possible, set the Content-Length header (with the ServletResponse.setContentLength(int) method), to allow the servlet container to use a persistent connection to return its response to the client, improving performance. The content length is automatically set if the entire response fits inside the response buffer.

When using HTTP 1.1 chunked encoding (which means that the response has a Transfer-Encoding header), do not set the Content-Length header.

This method does not need to be either safe or idempotent. Operations requested through POST can have side effects for which the user can be held accountable, for example, updating stored data or buying items online.

If the HTTP POST request is incorrectly formatted, doPost returns an HTTP "Bad Request" message.

覆盖：

类 HttpServlet 中的 doPost

参数：

sreq - an HttpServletRequest object that contains the request the client has made of the servlet

sres - an HttpServletResponse object that contains the response the servlet sends to the client

抛出：

ServletException - if the request for the POST could not be handled

IOException - if an input or output error is detected when the servlet handles the request

另请参见：

ServletOutputStream, ServletResponse.setContentType(java.lang.String)

doGet

protected void doGet(HttpServletRequest req,
                     HttpServletResponse resp)
              throws ServletException,
                     IOException

从类 HttpServlet 复制的描述

Called by the server (via the service method) to allow a servlet to handle a GET request.

Overriding this method to support a GET request also automatically supports an HTTP HEAD request. A HEAD request is a GET request that returns no body in the response, only the request header fields.

When overriding this method, read the request data, write the response headers, get the response's writer or output stream object, and finally, write the response data. It's best to include content type and encoding. When using a PrintWriter object to return the response, set the content type before accessing the PrintWriter object.

The servlet container must write the headers before committing the response, because in HTTP the headers must be sent before the response body.

Where possible, set the Content-Length header (with the ServletResponse.setContentLength(int) method), to allow the servlet container to use a persistent connection to return its response to the client, improving performance. The content length is automatically set if the entire response fits inside the response buffer.

When using HTTP 1.1 chunked encoding (which means that the response has a Transfer-Encoding header), do not set the Content-Length header.

The GET method should be safe, that is, without any side effects for which users are held responsible. For example, most form queries have no side effects. If a client request is intended to change stored data, the request should use some other HTTP method.

The GET method should also be idempotent, meaning that it can be safely repeated. Sometimes making a method safe also makes it idempotent. For example, repeating queries is both safe and idempotent, but buying a product online or modifying data is neither safe nor idempotent.

If the request is incorrectly formatted, doGet returns an HTTP "Bad Request" message.

覆盖：

类 HttpServlet 中的 doGet

参数：

req - an HttpServletRequest object that contains the request the client has made of the servlet

resp - an HttpServletResponse object that contains the response the servlet sends to the client

抛出：

ServletException - if the request for the GET could not be handled

IOException - if an input or output error is detected when the servlet handles the GET request

另请参见：

ServletResponse.setContentType(java.lang.String)