码迷,mamicode.com
首页 > 微信 > 详细

Java微信公众平台开发_03_消息管理之被动回复消息

时间:2017-11-13 14:04:31      阅读:325      评论:0      收藏:0      [点我收藏+]

标签:oca   func   节点   ase   obj   red   .exe   main   方法   

GitHub源码:https://github.com/shirayner/weixin_gz

一、本节要点

1.回调url

上一节,我们启用服务器配置的时候,填写了一个服务器地址(url),如下图,这个url就是回调url,是开发者用来接收微信消息和事件的接口URL 。也就是说,用户在微信公众号中发送的消息会被推送到这个回调url,而我们可以接收用户的消息,并进行回复。

技术分享

 

 

2.被动回复消息的流程

官方文档:

技术分享

 

我们在上一节中设置的消息加解密方式是安全模式。因此在用户发给公众号的消息(接收消息)以及公众号被动回复用户消息(回复消息)都会加密,

流程

用户发送消息之后,微信服务器将消息传递给 第三方服务器,第三方服务器接收到消息后,再对消息做出相应的回复消息。

接收消息:需先从request请求对象的输入流中获取请求参数和已加密的请求消息,再对已加密的请求消息进行解密操作,即可获得明文。

                  然后就行对明文消息的业务处理了。

回复消息:封装好回复消息后,需先对回复消息进行加密,获得已已加密消息,然后再通过http请求调用被动回复消息的接口,来发送消息。

 

 

3.被动回复消息加解密

3.1接收消息的  解密

 (1)从请求的输入流中获取加密的请求消息

技术分享
            //1.获取加密的请求消息:使用输入流获得加密请求消息postData
            ServletInputStream in = request.getInputStream();
            BufferedReader reader =new BufferedReader(new InputStreamReader(in));  

            String tempStr="";   //作为输出字符串的临时串,用于判断是否读取完毕  
            while(null!=(tempStr=reader.readLine())){  
                postData+=tempStr;  
            }  

            logger.info("postData:"+postData);
View Code

(2)对加密的请求消息进行解密获得明文 

技术分享
                WXBizMsgCrypt wxcpt = new WXBizMsgCrypt(Env.TOKEN,Env.ENCODING_AES_KEY,Env.APP_ID);
                result=wxcpt.DecryptMsg(msgSignature, timeStamp, nonce, postData);
View Code

(3)解密算法

直接调用微信官方的 WXBizMsgCrypt 类的 DecryptMsg(String, String, String, String) 方法即可。

 

3.2 回复消息的加密

直接用官方加解密工具类。

技术分享
                wxcpt = new WXBizMsgCrypt(Env.TOKEN,Env.ENCODING_AES_KEY,Env.APP_ID);
                replyMsg=wxcpt.EncryptMsg(replyMsg, timeStamp, nonce);
View Code

 

4.消息对象的封装

根据官方文档消息的xml传输格式,我们可以将消息封装成对象。请参见后面的代码实现部分

 

5.数据传输—对象 转成  xml字符串

 根据官方文档,数据是以XML数据包的形式进行传输的。因此,我们需要

(1)解析微信发来的请求(xmlStr),从xml字符串中获取需要的信息

(2)回复消息时,将消息对象转成xml字符串。

 

我们是使用dom4j,xstream来进行这个转换的,因此需要导入jar包,maven依赖如下:

<!-- 7.XML解析 -->
        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
        </dependency>

        <dependency>
            <groupId>com.thoughtworks.xstream</groupId>
            <artifactId>xstream</artifactId>
            <version>1.4.10</version>
        </dependency>

 

具体请参见代码实现的 MessageUtil 部分。

5.1  解析微信发来的请求(XML),获取请求参数 

技术分享
  /**
     * @desc :1.解析微信发来的请求(XML),获取请求参数 
     *  
     * @param request
     * @return
     * @throws Exception Map<String,String>
     */
    public static Map<String, String> parseXml(HttpServletRequest request) throws Exception {  
        // 将解析结果存储在HashMap中  
        Map<String, String> map = new HashMap<String, String>();  
  
        // 从request中取得输入流  
        InputStream inputStream = request.getInputStream();  
        // 读取输入流  
        SAXReader reader = new SAXReader();  
        Document document = reader.read(inputStream);  
        // 得到xml根元素  
        Element root = document.getRootElement();  
        // 得到根元素的所有子节点  
        List<Element> elementList = root.elements();  
  
        // 遍历所有子节点  
        for (Element e : elementList)  
            map.put(e.getName(), e.getText());  
  
        // 释放资源  
        inputStream.close();  
        inputStream = null;  
  
        return map;  
    } 
View Code

 

5.2 将文本消息转成xml字符串

技术分享
  /** 
     * 2.文本消息对象转换成xml 
     *  
     * @param textMessage 文本消息对象 
     * @return xml 
     */  
    public static String textMessageToXml(TextMessage textMessage) {  
        xstream.alias("xml", textMessage.getClass());  
        return xstream.toXML(textMessage);  
    }  
View Code

 

 

 二、代码实现

1.微信配置类—Env.java

微信公众号接入配置类

技术分享
package com.ray.weixin.gz.config;

/**@desc  : 微信公众号接入配置
 * 
 * @author: shirayner
 * @date  : 2017年9月27日 下午4:57:36
 */

public class Env {

    /**
     * 1. 企业应用接入秘钥相关
     */
   // public static final String APP_ID = "wx4dca3424bebef2cc";
    //public static final String APP_SECRET = "068e2599abf88ba78491a07906f3c56e";
  
    //测试号
    public static final String APP_ID = "wxa0064ea657f80062";
    public static final String APP_SECRET = "fcc960840df869ad1a46af7993784917";
    

    /**
     * 2.服务器配置:
     * 启用并设置服务器配置后,用户发给公众号的消息以及开发者需要的事件推送,将被微信转发到该URL中
     */
    public static final String TOKEN = "weixin";
    public static final String ENCODING_AES_KEY = "JvJ1Dww6tjUU2psC3pmokXvOHHfovfWP3LfX1xrriz1";
    
    
  

    
}
View Code

 

2.HTTP请求工具类—HttpHelper.java

技术分享
package com.ray.weixin.gz.util;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.http.Consts;
import org.apache.http.Header;
import org.apache.http.HeaderElement;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.FileEntity;
import org.apache.http.entity.StringEntity;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.util.EntityUtils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;


/**
 * HTTP请求封装,建议直接使用sdk的API
 */
public class HttpHelper {

    /**
     * @desc :1.发起GET请求
     *  
     * @param url
     * @return JSONObject
     * @throws Exception 
     */
    public static JSONObject doGet(String url) throws Exception {

        //1.生成一个请求
        HttpGet httpGet = new HttpGet(url);
        //2.配置请求的属性
        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(5000).setConnectTimeout(5000).build();//2000
        httpGet.setConfig(requestConfig);

        //3.发起请求,获取响应信息    
        //3.1 创建httpClient 
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        try {
            //3.2 发起请求,获取响应信息    
            response = httpClient.execute(httpGet, new BasicHttpContext());

            //如果返回结果的code不等于200,说明出错了  
            if (response.getStatusLine().getStatusCode() != 200) {

                System.out.println("request url failed, http code=" + response.getStatusLine().getStatusCode()
                        + ", url=" + url);
                return null;
            }
            //4.解析请求结果
            HttpEntity entity = response.getEntity();      //reponse返回的数据在entity中 
            if (entity != null) {
                String resultStr = EntityUtils.toString(entity, "utf-8");  //将数据转化为string格式  
                System.out.println("GET请求结果:"+resultStr);
                JSONObject result = JSON.parseObject(resultStr);    //将String转换为 JSONObject

                if(result.getInteger("errcode")==null) {
                    return result;
                }else if (0 == result.getInteger("errcode")) {
                    return result;
                }else {
                    System.out.println("request url=" + url + ",return value=");
                    System.out.println(resultStr);
                    int errCode = result.getInteger("errcode");
                    String errMsg = result.getString("errmsg");
                    throw new Exception("error code:"+errCode+", error message:"+errMsg); 
                }
            }
        } catch (IOException e) {
            System.out.println("request url=" + url + ", exception, msg=" + e.getMessage());
            e.printStackTrace();
        } finally {
            if (response != null) try {
                response.close();                     //释放资源

            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return null;
    }


    /** 2.发起POST请求
     * @desc :
     *  
     * @param url   请求url
     * @param data  请求参数(json)
     * @return
     * @throws Exception JSONObject
     */
    public static JSONObject doPost(String url, Object data) throws Exception {
        //1.生成一个请求
        HttpPost httpPost = new HttpPost(url);

        //2.配置请求属性
        //2.1 设置请求超时时间
        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(100000).setConnectTimeout(100000).build();
        httpPost.setConfig(requestConfig);
        //2.2 设置数据传输格式-json
        httpPost.addHeader("Content-Type", "application/json");
        //2.3 设置请求实体,封装了请求参数
        StringEntity requestEntity = new StringEntity(JSON.toJSONString(data), "utf-8");
        httpPost.setEntity(requestEntity);

        //3.发起请求,获取响应信息    
        //3.1 创建httpClient 
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;

        try {


            //3.3 发起请求,获取响应
            response = httpClient.execute(httpPost, new BasicHttpContext());

            if (response.getStatusLine().getStatusCode() != 200) {

                System.out.println("request url failed, http code=" + response.getStatusLine().getStatusCode()
                        + ", url=" + url);
                return null;
            }

            //获取响应内容
            HttpEntity entity = response.getEntity();
            if (entity != null) {
                String resultStr = EntityUtils.toString(entity, "utf-8");
                System.out.println("POST请求结果:"+resultStr);

                //解析响应内容
                JSONObject result = JSON.parseObject(resultStr);

                if(result.getInteger("errcode")==null) {
                    return result;
                }else if (0 == result.getInteger("errcode")) {
                    return result;
                }else {
                    System.out.println("request url=" + url + ",return value=");
                    System.out.println(resultStr);
                    int errCode = result.getInteger("errcode");
                    String errMsg = result.getString("errmsg");
                    throw new Exception("error code:"+errCode+", error message:"+errMsg); 
                }
            }
        } catch (IOException e) {
            System.out.println("request url=" + url + ", exception, msg=" + e.getMessage());
            e.printStackTrace();
        } finally {
            if (response != null) try {
                response.close();              //释放资源

            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return null;
    }

    /**
     * @desc : 3.上传文件
     *  
     * @param url   请求url
     * @param file  上传的文件
     * @return
     * @throws Exception JSONObject
     */
    public static JSONObject uploadMedia(String url, File file) throws Exception {
        HttpPost httpPost = new HttpPost(url);
        CloseableHttpResponse response = null;
        CloseableHttpClient httpClient = HttpClients.createDefault();
        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(5000).setConnectTimeout(5000).build();
        httpPost.setConfig(requestConfig);
        
        //2.3 设置请求实体,封装了请求参数
        HttpEntity requestEntity = MultipartEntityBuilder.create().addPart("media",
                new FileBody(file, ContentType.create("multipart/form-data", Consts.UTF_8), file.getName())).build();

        //FileEntity requestEntity = new FileEntity(file,ContentType.MULTIPART_FORM_DATA);


        httpPost.setEntity(requestEntity);

        try {
            response = httpClient.execute(httpPost, new BasicHttpContext());

            if (response.getStatusLine().getStatusCode() != 200) {

                System.out.println("request url failed, http code=" + response.getStatusLine().getStatusCode()
                        + ", url=" + url);
                return null;
            }
            HttpEntity entity = response.getEntity();
            if (entity != null) {
                String resultStr = EntityUtils.toString(entity, "utf-8");

                JSONObject result = JSON.parseObject(resultStr);
                //上传临时素材成功
                if (result.getString("errcode")== null) {
                    // 成功
                    //result.remove("errcode");
                    //result.remove("errmsg");
                    return result;
                } else {
                    System.out.println("request url=" + url + ",return value=");
                    System.out.println(resultStr);
                    int errCode = result.getInteger("errcode");
                    String errMsg = result.getString("errmsg");
                    throw new Exception("error code:"+errCode+", error message:"+errMsg); 
                }
            }
        } catch (IOException e) {
            System.out.println("request url=" + url + ", exception, msg=" + e.getMessage());
            e.printStackTrace();
        } finally {
            if (response != null) try {
                response.close();                  //释放资源


            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return null;
    }

    /**
     * @desc : 上传PDF
     * 见微信电子发票章节
     * 9. 向用户提供发票或其它消费凭证PDF
     *  
     * @param url
     * @param file
     * @return
     * @throws Exception 
     *   JSONObject
     */
    public static JSONObject uploadPDF(String url, File file) throws Exception {
        HttpPost httpPost = new HttpPost(url);
        CloseableHttpResponse response = null;
        CloseableHttpClient httpClient = HttpClients.createDefault();
        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(5000).setConnectTimeout(5000).build();
        httpPost.setConfig(requestConfig);
        
        //2.3 设置请求实体,封装了请求参数
        HttpEntity requestEntity = MultipartEntityBuilder.create().addPart("media",
                new FileBody(file, ContentType.create("multipart/form-data", Consts.UTF_8), file.getName())).build();

        httpPost.setEntity(requestEntity);

        try {
            response = httpClient.execute(httpPost, new BasicHttpContext());

            if (response.getStatusLine().getStatusCode() != 200) {

                System.out.println("request url failed, http code=" + response.getStatusLine().getStatusCode()
                        + ", url=" + url);
                return null;
            }
            HttpEntity entity = response.getEntity();
            if (entity != null) {
                String resultStr = EntityUtils.toString(entity, "utf-8");

                JSONObject result = JSON.parseObject(resultStr);
                //上传临时素材成功
                if (result.getString("errcode")== null) {
                    // 成功
                    //result.remove("errcode");
                    //result.remove("errmsg");
                    return result;
                } else {
                    System.out.println("request url=" + url + ",return value=");
                    System.out.println(resultStr);
                    int errCode = result.getInteger("errcode");
                    String errMsg = result.getString("errmsg");
                    throw new Exception("error code:"+errCode+", error message:"+errMsg); 
                }
            }
        } catch (IOException e) {
            System.out.println("request url=" + url + ", exception, msg=" + e.getMessage());
            e.printStackTrace();
        } finally {
            if (response != null) try {
                response.close();                  //释放资源


            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return null;
    }
    /**
     * @desc : 4.下载文件 -get
     *  
     * @param url  请求url
     * @param fileDir  下载路径
     * @return
     * @throws Exception File
     */
    public static File downloadMedia(String url, String fileDir) throws Exception  {
        //1.生成一个请求
        HttpGet httpGet = new HttpGet(url);
        //2.配置请求属性
        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(100000).setConnectTimeout(100000).build();
        httpGet.setConfig(requestConfig);

        //3.发起请求,获取响应信息    
        //3.1 创建httpClient 
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;

        //4.设置本地保存的文件  
        //File file = new File(fileDir);
        File file = null;
        try {
            //5. 发起请求,获取响应信息    
            response = httpClient.execute(httpGet, new BasicHttpContext());
            System.out.println("HttpStatus.SC_OK:"+HttpStatus.SC_OK);  
            System.out.println("response.getStatusLine().getStatusCode():"+response.getStatusLine().getStatusCode());  
            System.out.println("http-header:"+JSON.toJSONString( response.getAllHeaders() ));  
            System.out.println("http-filename:"+getFileName(response) );  

            //请求成功  
            if(HttpStatus.SC_OK==response.getStatusLine().getStatusCode()){  

                //6.取得请求内容  
                HttpEntity entity = response.getEntity();  

                if (entity != null) {  
                    //这里可以得到文件的类型 如image/jpg /zip /tiff 等等 但是发现并不是十分有效,有时明明后缀是.rar但是取到的是null,这点特别说明  
                    System.out.println(entity.getContentType());  
                    //可以判断是否是文件数据流  
                    System.out.println(entity.isStreaming());  

                    //6.1 输出流
                    //6.1.1获取文件名,拼接文件路径
                    String fileName=getFileName(response);
                    fileDir=fileDir+fileName;
                    file = new File(fileDir);
                    //6.1.2根据文件路径获取输出流
                    FileOutputStream output = new FileOutputStream(file);  

                    //6.2 输入流:从钉钉服务器返回的文件流,得到网络资源并写入文件  
                    InputStream input = entity.getContent();  

                    //6.3 将数据写入文件:将输入流中的数据写入到输出流
                    byte b[] = new byte[1024];  
                    int j = 0;  
                    while( (j = input.read(b))!=-1){  
                        output.write(b,0,j);  
                    }  
                    output.flush();  
                    output.close();   
                }  
                if (entity != null) {  
                    entity.consumeContent();  
                }  
            }  
        } catch (IOException e) {
            System.out.println("request url=" + url + ", exception, msg=" + e.getMessage());
            e.printStackTrace();
        } finally {
            if (response != null) try {
                response.close();                       //释放资源


            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return file;
    }


    /**
     * @desc : 5.下载文件 - post
     *  
     * @param url  请求url
     * @param data  post请求参数
     * @param fileDir 文件下载路径
     * @return
     * @throws Exception File
     */
    public static File downloadMedia(String url, Object data, String fileDir) throws Exception  {
        //1.生成一个请求
        HttpPost httpPost = new HttpPost(url);

        //2.配置请求属性
        //2.1 设置请求超时时间
        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(100000).setConnectTimeout(100000).build();
        httpPost.setConfig(requestConfig);
        //2.2 设置数据传输格式-json
        httpPost.addHeader("Content-Type", "application/json");
        //2.3 设置请求参数
        StringEntity requestEntity = new StringEntity(JSON.toJSONString(data), "utf-8");
        httpPost.setEntity(requestEntity);

        //3.发起请求,获取响应信息    
        //3.1 创建httpClient 
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;

        //4.设置本地保存的文件  
        //File file = new File(fileDir);
        File file = null;
        try {
            //5. 发起请求,获取响应信息    
            response = httpClient.execute(httpPost, new BasicHttpContext());
            System.out.println("HttpStatus.SC_OK:"+HttpStatus.SC_OK);  
            System.out.println("response.getStatusLine().getStatusCode():"+response.getStatusLine().getStatusCode());  
            System.out.println("http-header:"+JSON.toJSONString( response.getAllHeaders() ));  
            System.out.println("http-filename:"+getFileName(response) );  

            //请求成功  
            if(HttpStatus.SC_OK==response.getStatusLine().getStatusCode()){  

                //6.取得请求内容  
                HttpEntity entity = response.getEntity();  

                if (entity != null) {  
                    //这里可以得到文件的类型 如image/jpg /zip /tiff 等等 但是发现并不是十分有效,有时明明后缀是.rar但是取到的是null,这点特别说明  
                    System.out.println(entity.getContentType());  
                    //可以判断是否是文件数据流  
                    System.out.println(entity.isStreaming());  

                    //6.1 输出流
                    //6.1.1获取文件名,拼接文件路径
                    String fileName=getFileName(response);
                    fileDir=fileDir+fileName;
                    file = new File(fileDir);
                    //6.1.2根据文件路径获取输出流
                    FileOutputStream output = new FileOutputStream(file);  

                    //6.2 输入流:从钉钉服务器返回的文件流,得到网络资源并写入文件  
                    InputStream input = entity.getContent();  

                    //6.3 将数据写入文件:将输入流中的数据写入到输出流
                    byte b[] = new byte[1024];  
                    int j = 0;  
                    while( (j = input.read(b))!=-1){  
                        output.write(b,0,j);  
                    }  
                    output.flush();  
                    output.close();   
                }  
                if (entity != null) {  
                    entity.consumeContent();  
                }  
            }  
        } catch (IOException e) {
            System.out.println("request url=" + url + ", exception, msg=" + e.getMessage());
            e.printStackTrace();
        } finally {
            if (response != null) try {
                response.close();                       //释放资源


            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return file;
    }


    /** 5. 获取response header中Content-Disposition中的filename值 
     * @desc :
     *  
     * @param response  响应
     * @return String
     */
    public static String getFileName(HttpResponse response) {  
        Header contentHeader = response.getFirstHeader("Content-Disposition");  
        String filename = null;  
        if (contentHeader != null) {  
            HeaderElement[] values = contentHeader.getElements();  
            if (values.length == 1) {  
                NameValuePair param = values[0].getParameterByName("filename");  
                if (param != null) {  
                    try {  
                        //filename = new String(param.getValue().toString().getBytes(), "utf-8");  
                        //filename=URLDecoder.decode(param.getValue(),"utf-8");  
                        filename = param.getValue();  
                    } catch (Exception e) {  
                        e.printStackTrace();  
                    }  
                }  
            }  
        }  
        return filename;  
    }  



}
View Code

 

3、接收消息的封装

3.1 消息基类—BaseMessage

技术分享
package com.ray.weixin.gz.model.message.request;  
  
/**
 *   @desc  : 消息基类(普通用户 -> 公众帐号) 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午10:58:08
 */
public class BaseMessage {  
    // 开发者微信号  
    private String ToUserName;  
    // 发送方帐号(一个OpenID)  
    private String FromUserName;  
    // 消息创建时间 (整型)  
    private long CreateTime;  
    // 消息类型(text/image/location/link)  
    private String MsgType;  
    // 消息id,64位整型  
    private long MsgId;  
  
    public String getToUserName() {  
        return ToUserName;  
    }  
  
    public void setToUserName(String toUserName) {  
        ToUserName = toUserName;  
    }  
  
    public String getFromUserName() {  
        return FromUserName;  
    }  
  
    public void setFromUserName(String fromUserName) {  
        FromUserName = fromUserName;  
    }  
  
    public long getCreateTime() {  
        return CreateTime;  
    }  
  
    public void setCreateTime(long createTime) {  
        CreateTime = createTime;  
    }  
  
    public String getMsgType() {  
        return MsgType;  
    }  
  
    public void setMsgType(String msgType) {  
        MsgType = msgType;  
    }  
  
    public long getMsgId() {  
        return MsgId;  
    }  
  
    public void setMsgId(long msgId) {  
        MsgId = msgId;  
    }  
}  
View Code

 

3.2 文本消息—TextMessage

技术分享
package com.ray.weixin.gz.model.message.request;  
  
/**
 * @desc  : 文本消息 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:04:09
 */
public class TextMessage extends BaseMessage {  
    // 消息内容  
    private String Content;  
  
    public String getContent() {  
        return Content;  
    }  
  
    public void setContent(String content) {  
        Content = content;  
    }  
}  
View Code

 

3.3 图片消息—ImageMessage

技术分享
package com.ray.weixin.gz.model.message.request;  
   
/**
 * @desc  : 图片消息 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:04:33
 */
public class ImageMessage extends BaseMessage {  
    // 图片链接  
    private String PicUrl;  
  
    public String getPicUrl() {  
        return PicUrl;  
    }  
  
    public void setPicUrl(String picUrl) {  
        PicUrl = picUrl;  
    }  
}  
View Code

 

3.4 链接消息—LinkMessage

技术分享
package com.ray.weixin.gz.model.message.request;  
  
/**
 * @desc  :链接消息  
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:05:46
 */
public class LinkMessage extends BaseMessage {  
    // 消息标题  
    private String Title;  
    // 消息描述  
    private String Description;  
    // 消息链接  
    private String Url;  
  
    public String getTitle() {  
        return Title;  
    }  
  
    public void setTitle(String title) {  
        Title = title;  
    }  
  
    public String getDescription() {  
        return Description;  
    }  
  
    public void setDescription(String description) {  
        Description = description;  
    }  
  
    public String getUrl() {  
        return Url;  
    }  
  
    public void setUrl(String url) {  
        Url = url;  
    }  
}  
View Code

 

3.5 地理位置消息—LocationMessage

技术分享
package com.ray.weixin.gz.model.message.request;  
  
/**
 * @desc  : 地理位置消息 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:07:39
 */
public class LocationMessage extends BaseMessage {  
    // 地理位置维度  
    private String Location_X;  
    // 地理位置经度  
    private String Location_Y;  
    // 地图缩放大小  
    private String Scale;  
    // 地理位置信息  
    private String Label;  
  
    public String getLocation_X() {  
        return Location_X;  
    }  
  
    public void setLocation_X(String location_X) {  
        Location_X = location_X;  
    }  
  
    public String getLocation_Y() {  
        return Location_Y;  
    }  
  
    public void setLocation_Y(String location_Y) {  
        Location_Y = location_Y;  
    }  
  
    public String getScale() {  
        return Scale;  
    }  
  
    public void setScale(String scale) {  
        Scale = scale;  
    }  
  
    public String getLabel() {  
        return Label;  
    }  
  
    public void setLabel(String label) {  
        Label = label;  
    }  
}  
View Code

 

3.6 音频消息—VoiceMessage

技术分享
package com.ray.weixin.gz.model.message.request;  
    
/**
 * @desc  :音频消息  
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:08:25
 */
public class VoiceMessage extends BaseMessage {  
    // 媒体ID  
    private String MediaId;  
    // 语音格式  
    private String Format;  
  
    public String getMediaId() {  
        return MediaId;  
    }  
  
    public void setMediaId(String mediaId) {  
        MediaId = mediaId;  
    }  
  
    public String getFormat() {  
        return Format;  
    }  
  
    public void setFormat(String format) {  
        Format = format;  
    }  
}  
View Code

 

4. 回复消息的封装

4.1 消息基类—BaseMessage

技术分享
package com.ray.weixin.gz.model.message.response;  

/**
 * @desc  : 消息基类(公众帐号 -> 普通用户) 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:10:32
 */
public class BaseMessage {  
    // 接收方帐号(收到的OpenID)  
    private String ToUserName;  
    // 开发者微信号  
    private String FromUserName;  
    // 消息创建时间 (整型)  
    private long CreateTime;  
    // 消息类型(text/music/news)  
    private String MsgType;  
    // 位0x0001被标志时,星标刚收到的消息  
    private int FuncFlag;  
  
    public String getToUserName() {  
        return ToUserName;  
    }  
  
    public void setToUserName(String toUserName) {  
        ToUserName = toUserName;  
    }  
  
    public String getFromUserName() {  
        return FromUserName;  
    }  
  
    public void setFromUserName(String fromUserName) {  
        FromUserName = fromUserName;  
    }  
  
    public long getCreateTime() {  
        return CreateTime;  
    }  
  
    public void setCreateTime(long createTime) {  
        CreateTime = createTime;  
    }  
  
    public String getMsgType() {  
        return MsgType;  
    }  
  
    public void setMsgType(String msgType) {  
        MsgType = msgType;  
    }  
  
    public int getFuncFlag() {  
        return FuncFlag;  
    }  
  
    public void setFuncFlag(int funcFlag) {  
        FuncFlag = funcFlag;  
    }  
}  
View Code

 

4.2 文本消息—TextMessage

技术分享
package com.ray.weixin.gz.model.message.response;  
   
/**
 * @desc  : 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:10:58
 */
public class TextMessage extends BaseMessage {  
    // 回复的消息内容  
    private String Content;  
  
    public String getContent() {  
        return Content;  
    }  
  
    public void setContent(String content) {  
        Content = content;  
    }  
}  
View Code

 

4.3 音乐消息—MusicMessage

Music

技术分享
package com.ray.weixin.gz.model.message.response;  
   
/**
 * @desc  : 音乐model 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:12:47
 */
public class Music {  
    // 音乐名称  
    private String Title;  
    // 音乐描述  
    private String Description;  
    // 音乐链接  
    private String MusicUrl;  
    // 高质量音乐链接,WIFI环境优先使用该链接播放音乐  
    private String HQMusicUrl;  
  
    public String getTitle() {  
        return Title;  
    }  
  
    public void setTitle(String title) {  
        Title = title;  
    }  
  
    public String getDescription() {  
        return Description;  
    }  
  
    public void setDescription(String description) {  
        Description = description;  
    }  
  
    public String getMusicUrl() {  
        return MusicUrl;  
    }  
  
    public void setMusicUrl(String musicUrl) {  
        MusicUrl = musicUrl;  
    }  
  
    public String getHQMusicUrl() {  
        return HQMusicUrl;  
    }  
  
    public void setHQMusicUrl(String musicUrl) {  
        HQMusicUrl = musicUrl;  
    }  
  
}  
View Code

MusicMessage

技术分享
package com.ray.weixin.gz.model.message.response;  
   
/**
 * @desc  : 音乐消息 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:12:06
 */
public class MusicMessage extends BaseMessage {  
    // 音乐  
    private Music Music;  
  
    public Music getMusic() {  
        return Music;  
    }  
  
    public void setMusic(Music music) {  
        Music = music;  
    }  
}  
View Code

 

4.4 图文消息—NewsMessage

Article

技术分享
package com.ray.weixin.gz.model.message.response;  
  
/**
 * @desc  :  图文model 
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:15:30
 */
public class Article {  
    // 图文消息名称  
    private String Title;  
    // 图文消息描述  
    private String Description;  
    // 图片链接,支持JPG、PNG格式,较好的效果为大图640*320,小图80*80,限制图片链接的域名需要与开发者填写的基本资料中的Url一致  
    private String PicUrl;  
    // 点击图文消息跳转链接  
    private String Url;  
  
    public String getTitle() {  
        return Title;  
    }  
  
    public void setTitle(String title) {  
        Title = title;  
    }  
  
    public String getDescription() {  
        return null == Description ? "" : Description;  
    }  
  
    public void setDescription(String description) {  
        Description = description;  
    }  
  
    public String getPicUrl() {  
        return null == PicUrl ? "" : PicUrl;  
    }  
  
    public void setPicUrl(String picUrl) {  
        PicUrl = picUrl;  
    }  
  
    public String getUrl() {  
        return null == Url ? "" : Url;  
    }  
  
    public void setUrl(String url) {  
        Url = url;  
    }  
  
}  
View Code

NewsMessage

技术分享
package com.ray.weixin.gz.model.message.response;  
  
import java.util.List;  
   
/**
 * @desc  : 图文消息
 * 
 * @author: shirayner
 * @date  : 2017年11月13日 上午11:13:36
 */
public class NewsMessage extends BaseMessage {  
    // 图文消息个数,限制为10条以内  
    private int ArticleCount;  
    // 多条图文消息信息,默认第一个item为大图  
    private List<Article> Articles;  
  
    public int getArticleCount() {  
        return ArticleCount;  
    }  
  
    public void setArticleCount(int articleCount) {  
        ArticleCount = articleCount;  
    }  
  
    public List<Article> getArticles() {  
        return Articles;  
    }  
  
    public void setArticles(List<Article> articles) {  
        Articles = articles;  
    }  
}  
View Code

 

5.接收微信消息和事件—WeiXinServlet.java

技术分享
package com.ray.weixin.gz.controller;
import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import com.qq.weixin.mp.aes.AesException;
import com.qq.weixin.mp.aes.WXBizMsgCrypt;
import com.ray.weixin.gz.config.Env;
import com.ray.weixin.gz.service.message.ReplyMessageService;



/**
 * Servlet implementation class WeiXinServlet
 */         
public class WeiXinServlet extends HttpServlet {
    private static final Logger logger = LogManager.getLogger(WeiXinServlet.class);



    private static final long serialVersionUID = 1L;

    /**
     * Default constructor. 
     */
    public WeiXinServlet() {
        // TODO Auto-generated constructor stub
    }

    //1.接收  回调模式  的请求
    protected void doGet(HttpServletRequest request, HttpServletResponse response)  {
        logger.info("get--------------");
        //一、校验URL
        //1.准备校验参数
        // 微信加密签名  
        String msgSignature = request.getParameter("signature");  
        // 时间戳  
        String timeStamp = request.getParameter("timestamp");  
        // 随机数  
        String nonce = request.getParameter("nonce");  
        // 随机字符串  
        String echoStr = request.getParameter("echostr");  

        PrintWriter out=null;
        try {
            //2.校验url
            //2.1 创建加解密类
            WXBizMsgCrypt wxcpt = new WXBizMsgCrypt(Env.TOKEN,Env.ENCODING_AES_KEY,Env.APP_ID);

            //2.2进行url校验
            //不抛异常就说明校验成功
            String sEchoStr= wxcpt.verifyUrl_WXGZ(msgSignature, Env.TOKEN, timeStamp, nonce,echoStr);

            //2.3若校验成功,则原样返回 echoStr

            out = response.getWriter(); 
            out.print(sEchoStr);  




        } catch (AesException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (out != null) {
                out.close();  
                out = null;                       //释放资源
            }
        }
    }

    //2.接收  微信消息和事件  的请求
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        logger.info("post--------------");
        //1.将请求、响应的编码均设置为UTF-8(防止中文乱码)  
        request.setCharacterEncoding("UTF-8");  
        response.setCharacterEncoding("UTF-8");  

        //2.调用消息业务类接收消息、处理消息  
        String respMessage = ReplyMessageService.reply(request);  

        //3.响应消息  
        PrintWriter out = response.getWriter();  
        out.print(respMessage);  
        out.close(); 



    }

}
View Code

 

6.被动回复消息业务类—ReplyMessageService.java

技术分享
package com.ray.weixin.gz.service.message;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Date;
import java.util.Map;

import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import com.alibaba.fastjson.JSON;
import com.qq.weixin.mp.aes.AesException;
import com.qq.weixin.mp.aes.WXBizMsgCrypt;
import com.ray.weixin.gz.config.Env;
import com.ray.weixin.gz.model.message.response.TextMessage;
import com.ray.weixin.gz.util.MessageUtil;


/**@desc  : 发送消息-被动回复消息业务类
 * Passive reply message
 * @author: shirayner
 * @date  : 2017年10月31日 下午12:24:41
 */
public class ReplyMessageService {
    private static final Logger logger = LogManager.getLogger(ReplyMessageService.class);

    /**
     * @desc :1.回复消息
     *  
     * @param request
     * @return 
     *   String 回复消息的加密xml字符串
     */
    public static String reply( HttpServletRequest request ) {
        String parms=JSON.toJSONString(request.getParameterMap()); 
        logger.info("parms:"+parms);
        //1.解密:从request中获取消息明文
        String xmlMsg=decryptMsg(request);
        logger.info(xmlMsg);

        //2.获取回复消息(明文)
        String replyMsg = getReplyMsg( xmlMsg);

        //3.根据消息加密方式判断是否加密
        String timeStamp = request.getParameter("timestamp");   // 时间戳    
        String nonce = request.getParameter("nonce");          // 随机数  
        String encryptType=request.getParameter("encrypt_type");

        //3.1 安全模式-加密:将回复消息加密
        if(null!=encryptType) {
            WXBizMsgCrypt wxcpt=null;
            try {
                wxcpt = new WXBizMsgCrypt(Env.TOKEN,Env.ENCODING_AES_KEY,Env.APP_ID);
                replyMsg=wxcpt.EncryptMsg(replyMsg, timeStamp, nonce);

            } catch (AesException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }



        return replyMsg;
    }

    /**
     * @desc :2.从request中获取消息明文
     *  从request中获取加密消息,将其解密并返回
     * @param request
     * @return String   消息明文
     */
    public static String decryptMsg(HttpServletRequest request) {

        String postData="";   // 密文,对应POST请求的数据
        String result="";     // 明文,解密之后的结果

        String msgSignature = request.getParameter("msg_signature"); // 微信加密签名  
        String timeStamp = request.getParameter("timestamp");   // 时间戳    
        String nonce = request.getParameter("nonce");          // 随机数  
        String encryptType=request.getParameter("encrypt_type");

        try {
            //1.获取加密的请求消息:使用输入流获得加密请求消息postData
            ServletInputStream in = request.getInputStream();
            BufferedReader reader =new BufferedReader(new InputStreamReader(in));  

            String tempStr="";   //作为输出字符串的临时串,用于判断是否读取完毕  
            while(null!=(tempStr=reader.readLine())){  
                postData+=tempStr;  
            }  

            logger.info("postData:"+postData);

            //2.获取消息明文:对加密的请求消息进行解密获得明文 
            if(null!=encryptType) {
                logger.info("安全模式:消息被加密");
                WXBizMsgCrypt wxcpt = new WXBizMsgCrypt(Env.TOKEN,Env.ENCODING_AES_KEY,Env.APP_ID);
                result=wxcpt.DecryptMsg(msgSignature, timeStamp, nonce, postData);
            }else {
                logger.info("明文模式");
                result=postData;
            }

        } catch (IOException e) {
            e.printStackTrace();
        } catch (AesException e) {
            e.printStackTrace();
        }  

        return result;
    }

    /**
     * @desc :获取回复消息
     *  
     * @param request
     * @return String  返回加密后的回复消息
     */
    public static String getReplyMsg(String xmlMsg){
        String replyMsg = null; 

        try {
            //2.解析微信发来的请求,解析xml字符串
            Map<String, String> requestMap= MessageUtil.parseXml(xmlMsg);    

            //3.获取请求参数
            //3.1 企业微信CorpID  
            String fromUserName = requestMap.get("FromUserName");  
            //3.2 成员UserID
            String toUserName = requestMap.get("ToUserName");  
            //3.3 消息类型与事件 
            String msgType = requestMap.get("MsgType"); 
            String eventType = requestMap.get("Event");  
            String eventKey = requestMap.get("EventKey"); 
            logger.info("fromUserName:"+fromUserName);
            logger.info("toUserName:"+toUserName);
            logger.info("msgType:"+msgType);
            logger.info("Event:"+eventType+"  eventKey:"+eventKey);

            //4.组装 回复文本消息  
            TextMessage textMessage = new TextMessage();  
            textMessage.setToUserName(fromUserName);  
            textMessage.setFromUserName(toUserName);  
            textMessage.setCreateTime(new Date().getTime());  
            textMessage.setMsgType(MessageUtil.RESP_MESSAGE_TYPE_TEXT);  
            //4.1.获取回复消息的内容 :消息的分类处理
            String replyContent=getReplyContentByMsgType(msgType, eventType, eventKey);
            textMessage.setContent(replyContent);  
            System.out.println("replyContent:"+replyContent);

            //5.获取xml字符串: 将(被动回复消息型的)文本消息对象 转成  xml字符串
            replyMsg = MessageUtil.textMessageToXml(textMessage); 




        } catch (Exception e) {
            e.printStackTrace();
        }  

        return replyMsg;
    }


    /**
     * @desc :3.处理消息:根据消息类型获取回复内容
     *  
     * @param msgType 消息类型
     * @return String 回复内容
     */
    public static  String getReplyContentByMsgType(String msgType,String eventType,String eventKey){
        String replyContent="";
        //1.文本消息  
        if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_TEXT)) {  
            replyContent = "您发送的是文本消息!";  

        }  
        //2.图片消息  
        else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_IMAGE)) {  
            replyContent = "您发送的是图片消息!";  
        }  
        //3.地理位置消息  
        else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_LOCATION)) { 

            replyContent = "您发送的是地理位置消息 !";  
        }  
        //4.链接消息  
        else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_LINK)) {  
            replyContent = "您发送的是链接消息!";  
        }  
        //5.音频消息  
        else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_VOICE)) {  
            replyContent = "您发送的是音频消息!";  
        }
        //6.事件推送  
        else if (msgType.equals(MessageUtil.REQ_MESSAGE_TYPE_EVENT)) { 
            replyContent=getReplyContentByEventType(eventType, eventKey);
        }
        //7.请求异常
        else {
            replyContent="请求处理异常,请稍候尝试!";
        }  

        return replyContent;
    }

    /**
     * @desc :5.处理消息:根据事件类型获取回复内容
     *  
     * @param eventType  事件类型
     * @param eventKey  事件key值
     * @return 
     *   String
     */
    public static String getReplyContentByEventType(String eventType,String eventKey){

        String respContent="";
        // 订阅  
        if (eventType.equals(MessageUtil.EVENT_TYPE_SUBSCRIBE)) {  
            respContent = "欢迎关注!";  
        }  
        // 取消订阅  
        else if (eventType.equals(MessageUtil.EVENT_TYPE_UNSUBSCRIBE)) {  
            // TODO 取消订阅后用户再收不到公众号发送的消息,因此不需要回复消息  
        } 
        //上报地理位置事件
        else if(eventType.equals("LOCATION")){

        }
        // 自定义菜单点击事件  
        else if (eventType.equals(MessageUtil.EVENT_TYPE_CLICK)) {  

            if (eventKey.equals("12")) {  

            } else if (eventKey.equals("13")) {  
                respContent = "周边搜索菜单项被点击!";  
            } else if (eventKey.equals("14")) {  
                respContent = "历史上的今天菜单项被点击!";  
            } else if (eventKey.equals("21")) {  
                respContent = "歌曲点播菜单项被点击!";  
            } else if (eventKey.equals("22")) {  

                respContent = "经典游戏菜单项被点击!";  
            } else if (eventKey.equals("23")) {  
                respContent = "美女电台菜单项被点击!";  
            } else if (eventKey.equals("24")) {  
                respContent = "人脸识别菜单项被点击!";  
            } else if (eventKey.equals("25")) {  
                respContent = "聊天唠嗑菜单项被点击!";  
            } else if (eventKey.equals("31")) {  
                respContent = "Q友圈菜单项被点击!";  
            } else if (eventKey.equals("32")) {  
                respContent = "电影排行榜菜单项被点击!";  
            } else if (eventKey.equals("33")) {  
                respContent = "幽默笑话菜单项被点击!";  
            }  
        } 
        return respContent;
    }  

}
View Code

 

三、参考资料

1.微信公众平台技术文档

2.柳峰—微信公众帐号开发教程第5篇-各种消息的接收与响应

 

Java微信公众平台开发_03_消息管理之被动回复消息

标签:oca   func   节点   ase   obj   red   .exe   main   方法   

原文地址:http://www.cnblogs.com/shirui/p/7825481.html

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!