Java微信公众平台开发模式+自定义按钮源码

首先，想用开放模式需要先成为开发者。成为开发者有两种写法。
一是：通过jsp页面，用out.print("echostr")//SHA1加密的字符串；
二是：通过Servlet。doGet返回exhostr，给微信平台。
这里我只写第二种方式的请求（这里的请求是以get方式请求），代码如下：

[java] view
plaincopyprint?





import java.io.IOException;

import java.io.InputStream;

import java.io.PrintWriter;

import java.util.Arrays;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.jdom.JDOMException;

/**

* 微信统一入口

* @author 274962267()

* 2013-7-26 上午10:17:08

*/

public class WeixinServlet extends HttpServlet {

public WeixinServlet() {

super();

}

public void destroy() {

super.destroy();

}

/**

* 微信公众平台 成为开发者验证入口

*/

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doPost(request, response);

}

/**

* 微信公众平台 所有接口入口

*/

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setCharacterEncoding("UTF-8");

request.setCharacterEncoding("UTF-8");

PrintWriter out = response.getWriter();

String TOKEN = "sun";//Token

String signature = request.getParameter("signature");//SHA1加密字符串

String timestamp = request.getParameter("timestamp");//时间

String nonce = request.getParameter("nonce");//随机数

String echoStr = request.getParameter("echostr");//随机字符串

if(StrUtil.isNotNull(echoStr)){

String[] a = {TOKEN,timestamp,nonce};

Arrays.sort(a);//数组排序

String str = "";

for(int i=0;i<a.length;i++){

str += a[i];

}

String echo = new SHA1().getDigestOfString(str.getBytes());//SHA1加密

if(echo.equals(signature)){

out.print(echoStr);

}else{

out.print("123");

}

}else{

try {

InputStream is = request.getInputStream();

PushManage push = new PushManage();

String getXml = push.PushManageXml(is);

System.out.println("getXml:"+getXml);

out.print(getXml);

} catch (JDOMException e) {

out.print("");

}

}

out.flush();

out.close();

}

}

当我们完成第一步成为开发者后，我们就可以用微信提供给我们的接口。
大家应该也看见上面有doPost方法（微信公共平台 所有接口入口）。当我们成为开发者后，微信用户向我们的公众账号发信息都是post请求。

[java] view
plaincopyprint?





//这里写法多种，怎么写就要看你这么获取微信请求时发给我们的XML

InputStream is = request.getInputStream();

PushManage push = new PushManage();

String getXml = push.PushManageXml(is);

此方法代码如下：

[java] view
plaincopyprint?





import java.io.IOException;

import java.io.InputStream;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.List;

import org.jdom.Document;

import org.jdom.Element;

import org.jdom.JDOMException;

import org.jdom.input.SAXBuilder;

import org.jdom.output.XMLOutputter;

/**

* 微信所有接口入口

* @author 274962267(中国编程群)

* 2013-7-26 上午11:01:08

*/

public class PushManage {

public String PushManageXml(InputStream is) throws JDOMException{

String returnStr = "";

String toName = "";

String FromName = "";

String type = "";

String content = "";

String con = "";

String event = "";//自定义按钮事件请求

String eKey = "";//事件请求key值

try {

SAXBuilder sax = new SAXBuilder();

Document doc = sax.build(is);

//获得文件的根元素

Element root = doc.getRootElement();

//获得根元素的第一级子节点

List list = root.getChildren();

for(int j=0;j<list.size();j++){

//获得结点

Element first = (Element) list.get(j);

if(first.getName().equals("ToUserName")){

toName = first.getValue().trim();

}else if(first.getName().equals("FromUserName")){

FromName = first.getValue().trim();

}else if(first.getName().equals("MsgType")){

type = first.getValue().trim();

}else if(first.getName().equals("Content")){

con = first.getValue().trim();

}else if(first.getName().equals("Event")){

event = first.getValue().trim();

}else if(first.getName().equals("EventKey")){

eKey = first.getValue().trim();

}

}

} catch (IOException e) {

e.printStackTrace();

}

if(type.equals("event")){

if(event.equals("subscribe")){//此为关注事件

content = "您好，欢迎关注BreezeMoon！";

}

}else if(type.equals("text")){

if(con.equals("help")||con.equals("帮助")||con.equals("?")||con.equals("？")){

content = "帮助中心\n\n";

}else if(con.equals("bind")||con.equals("绑定")){

content = "点击 <a target="_blank" href="\'\'">绑定账户</a>";

}else if(con.startsWith("ck")||con.startsWith("CK")){

String order_id = "0";

con.toLowerCase();

if(con.startsWith("ck")){

order_id = con.substring(con.indexOf("ck")+2);

}else if(con.startsWith("CK")){

order_id = con.substring(con.indexOf("CK")+2);

}

if(!"".equals(order_id)){

StringBuffer sb = new StringBuffer();

sb.append("订单详情...\n");

content = sb.toString();

}else{

content = "未查询到相应信息,请重新输入！";

}

}

}

//以下为自定义按钮事件

if(eKey.equals("music")){//音乐请求

returnStr = getBackXMLTypeMusic(toName, FromName, "音乐链接地址");

}else if(eKey.equals("img")){//图片请求

content = "网络图片地址";

returnStr = getBackXMLTypeImg(toName, FromName, content);

}else{//无自定义按钮返回上面的文本信息

returnStr = getBackXMLTypeText(toName, FromName, content);

}

return returnStr;

}

public String getBackXMLTypeText(String toName, String FromName, String content){

String returnStr = "";

SimpleDateFormat format=new SimpleDateFormat("yyyyMMddHHmmss");

String times = format.format(new Date());

Element rootXML = new Element("xml");

rootXML.addContent(new Element("ToUserName").setText(FromName));

rootXML.addContent(new Element("FromUserName").setText(toName));

rootXML.addContent(new Element("CreateTime").setText(times));

rootXML.addContent(new Element("MsgType").setText("text"));

rootXML.addContent(new Element("Content").setText(content));

Document doc = new Document(rootXML);

XMLOutputter XMLOut = new XMLOutputter();

returnStr = XMLOut.outputString(doc);

return returnStr;

}

public String getBackXMLTypeImg(String toName, String FromName, String content){

String returnStr = "";

SimpleDateFormat format=new SimpleDateFormat("yyyyMMddHHmmss");

String times = format.format(new Date());

Element rootXML = new Element("xml");

rootXML.addContent(new Element("ToUserName").setText(FromName));

rootXML.addContent(new Element("FromUserName").setText(toName));

rootXML.addContent(new Element("CreateTime").setText(times));

rootXML.addContent(new Element("MsgType").setText("news"));

rootXML.addContent(new Element("ArticleCount").setText("3"));

Element fXML = new Element("Articles");

Element mXML = null;

String url = "http://www.xmyjzzs.com";

String ss = "";

for(int i = 1 ;i<=3;i++){

mXML = new Element("item");

mXML.addContent(new Element("Title").setText("图片"+i));

mXML.addContent(new Element("Description").setText("美女"+i));

mXML.addContent(new Element("PicUrl").setText(ss));

mXML.addContent(new Element("Url").setText(url));

fXML.addContent(mXML);

}

rootXML.addContent(fXML);

Document doc = new Document(rootXML);

XMLOutputter XMLOut = new XMLOutputter();

returnStr = XMLOut.outputString(doc);

return returnStr;

}

public String getBackXMLTypeMusic(String toName, String FromName, String content){

String returnStr = "";

SimpleDateFormat format=new SimpleDateFormat("yyyyMMddHHmmss");

String times = format.format(new Date());

Element rootXML = new Element("xml");

rootXML.addContent(new Element("ToUserName").setText(FromName));

rootXML.addContent(new Element("FromUserName").setText(toName));

rootXML.addContent(new Element("CreateTime").setText(times));

rootXML.addContent(new Element("MsgType").setText("music"));

Element mXML = new Element("Music");

mXML.addContent(new Element("Title").setText("音乐"));

mXML.addContent(new Element("Description").setText("音乐让人心情舒畅！"));

mXML.addContent(new Element("MusicUrl").setText(content));

mXML.addContent(new Element("HQMusicUrl").setText(content));

rootXML.addContent(mXML);

Document doc = new Document(rootXML);

XMLOutputter XMLOut = new XMLOutputter();

returnStr = XMLOut.outputString(doc);

return returnStr;

}

}

以上方法用到的jar包：jdom.jar

微信公众平台自定义按钮设置，在此下载 微信公众平台自定义按钮Java