Java微信公众平台开发模式+自定义按钮源码

原文：http://blog.csdn.net/sunbreezemoon/article/details/9832287

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：

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 slz
 * 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();
    }

}

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 slz 
 * 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。

//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);

//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：

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 slz
 * 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，欢迎关注我！";
            }
        }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 href="\'\'" target=_blank>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, "http://view.online.zcom.com/full/16107/風之誓言.mp3");
        }else if(eKey.equals("img")){//图片请求
            content = "http://a.hiphotos.baidu.com/album/w%3D2048/sign=61aa038f622762d0803ea3bf94d409fa/d62a6059252dd42ae072bd07023b5bb5c9eab827.jpg";
            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.baidu.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;
    }
}

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 slz 
 * 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，欢迎关注我！";
			}
		}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 绑定账户";
			}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, "http://view.online.zcom.com/full/16107/風之誓言.mp3");
		}else if(eKey.equals("img")){//图片请求
			content = "http://a.hiphotos.baidu.com/album/w%3D2048/sign=61aa038f622762d0803ea3bf94d409fa/d62a6059252dd42ae072bd07023b5bb5c9eab827.jpg";
			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.baidu.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