com.github.cuter44.wxpay.servlet

类 GetOpenId

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

com.github.cuter44.wxpay.servlet.GetOpenId

所有已实现的接口:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class GetOpenId
extends javax.servlet.http.HttpServlet

另请参阅:

This servlet parses params from /wxpay.properties and returns client's openid facing the appid Here how it goes: 1. directly GET this url(which defined by your route file web.xml), either an ajax call or redirect is ok, see instruction below. 2. due to Weixin's spec, client will be redirect to open.weixin.qq.com/blabla to obtain a code 3. we will translate the code into openid and output it Response content-type in step #3 is alternative choice: If it is a redirect request, a redir param is required in step #1, we will append the openid as param and send a 302 response. If it is a ajax request, nothing but directly GET this url is needed. In such case, openid will be output as text/plain. Since open.weixin.qq.com does not contains a cross-domain header, You must A same client will reflect in different openids while it faces different WX service accounts. So DO NOT use this servlet in a multi-instance environment, due to this servlet use a static appid and secret read from the config file.

    Retrieve current client's openid
    GET /get-openid.api

    Params
    code    :string , generated and passed by open.weixin.qq.com, need not manual handling.
    redir   :url    , if you are doing an redirect and wish the openid returned as param k-v.

    Response
    if redir absent
    Content-Type: text/plain; charset=utf-8
    if redir provided
    302 Found
    Location: ${redir[@openid='$openid']}

 

, 序列化表格

字段概要

字段

限定符和类型	字段和说明
protected static java.lang.String	CODE
protected java.util.Properties	conf
protected static java.lang.String	KEY_APPID
protected static java.lang.String	KEY_OPENID
protected static java.lang.String	KEY_SECRET
protected static java.lang.String	REDIR

构造器概要

构造器

构造器和说明
GetOpenId()

方法概要

方法

限定符和类型	方法和说明
void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
void	init()

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

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

从类继承的方法 javax.servlet.GenericServlet

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

从类继承的方法 java.lang.Object

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

字段详细资料

KEY_APPID

protected static final java.lang.String KEY_APPID

另请参阅:

常量字段值

KEY_SECRET

protected static final java.lang.String KEY_SECRET

另请参阅:

常量字段值

KEY_OPENID

protected static final java.lang.String KEY_OPENID

另请参阅:

常量字段值

CODE

protected static final java.lang.String CODE

另请参阅:

常量字段值

REDIR

protected static final java.lang.String REDIR

另请参阅:

常量字段值

conf

protected java.util.Properties conf

构造器详细资料

GetOpenId

public GetOpenId()

方法详细资料

init

public void init()

覆盖:

init 在类中 javax.servlet.GenericServlet

doGet

public void doGet(javax.servlet.http.HttpServletRequest req,
         javax.servlet.http.HttpServletResponse resp)
           throws java.io.IOException,
                  javax.servlet.ServletException

覆盖:

doGet 在类中 javax.servlet.http.HttpServlet

抛出:

java.io.IOException

javax.servlet.ServletException