Java实现企业微信消息推送功能的详细步骤

package com.toone.itop.formula.function.inte.model;  
  
/**
 * @desc  : 微信通用接口凭证 
 * 
 */
public class AccessToken {  
    // 获取到的凭证  
    private String token;  
    // 凭证有效时间，单位：秒  
    private int expiresIn;  
    public String getToken() {  
        return token;  
    }  
    public void setToken(String token) {  
        this.token = token;  
    public int getExpiresIn() {  
        return expiresIn;  
    public void setExpiresIn(int expiresIn) {  
        this.expiresIn = expiresIn;  
}  

package com.toone.itop.formula.function.inte.model;  
  
/**
 * 消息基类（企业号 -> 普通用户） 
 *
 */
public class BaseMessage {  
    // 否 成员ID列表（消息接收者，多个接收者用‘|'分隔，最多支持1000个）。特殊情况：指定为@all，则向该企业应用的全部成员发送
    private String touser;  
    // 否 部门ID列表，多个接收者用‘|'分隔，最多支持100个。当touser为@all时忽略本参数
    private String toparty;  
    // 否 标签ID列表，多个接收者用‘|'分隔，最多支持100个。当touser为@all时忽略本参数
    private String totag;  
    // 是 消息类型 
    private String msgtype; 
    // 是 企业应用的id，整型。可在应用的设置页面查看
    private int agentid;
    
    public String getTouser() {
        return touser;
    }
    public void setTouser(String touser) {
        this.touser = touser;
    public String getToparty() {
        return toparty;
    public void setToparty(String toparty) {
        this.toparty = toparty;
    public String getTotag() {
        return totag;
    public void setTotag(String totag) {
        this.totag = totag;
    public String getMsgtype() {
        return msgtype;
    public void setMsgtype(String msgtype) {
        this.msgtype = msgtype;
    public int getAgentid() {
        return agentid;
    public void setAgentid(int agentid) {
        this.agentid = agentid;
}

package com.toone.itop.formula.function.inte.model;
/**
 * 文本
 *
 */
public class Text {
    //是    消息内容，最长不超过2048个字节
    private String content;
    public String getContent() {
        return content;
    }
    public void setContent(String content) {
        this.content = content;
}

package com.toone.itop.formula.function.inte.model;
/**
 * 文本消息
 *
 */
public class TextMessage extends BaseMessage {
    // 文本
    private Text text;
    // 否 表示是否是保密消息，0表示否，1表示是，默认0
    private int safe;
    public Text getText() {
        return text;
    }
    public void setText(Text text2) {
        this.text = text2;
    }
    public int getSafe() {
        return safe;
    }
    public void setSafe(int safe) {
        this.safe = safe;
    }
}

package com.toone.itop.formula.function.inte.util;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.X509TrustManager;
/**
 * 证书信任管理器（用于https请求
 * 
 */
public class MyX509TrustManager implements X509TrustManager {
    public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
    }
    public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
    public X509Certificate[] getAcceptedIssuers() {
        return null;
}

package com.toone.itop.formula.function.inte.util;
/**
 * 企业微信参数
 *
 */
public class WeChatParamesUtil {
    // 1.微信参数
    // 企业ID
    public final static String corpId = "ww0b7de3b4c25ba7881";
    // 企业应用私钥OA  
    public final static String corpsecret = "xbV7an7Mev8yqsnSzzzSn0L_cCnOTJxbo9gVZR7ObpY1";
    // 企业应用的id  
    public final static int agentId = 1000008;
    
    public final static String aws6url = "http://localhost:8088";
}

package com.toone.itop.formula.function.inte.util;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.ConnectException;
import java.net.URL;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import net.sf.json.JSONException;
import net.sf.json.JSONObject;
import com.toone.itop.formula.function.inte.model.AccessToken;
public class WeChatUtil {
    // 微信的请求url
    // 获取access_token的接口地址（GET） 限200（次/天）
    public final static String access_token_url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid={corpId}&corpsecret={corpsecret}";
    /**
     * 1.发起https请求并获取结果
     * 
     * @param requestUrl
     *            请求地址
     * @param requestMethod
     *            请求方式（GET、POST）
     * @param outputStr
     *            提交的数据
     * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)
     */
    public static JSONObject httpRequest(String requestUrl, String requestMethod, String outputStr) {
        JSONObject jsonObject = null;
        StringBuffer buffer = new StringBuffer();
        try {
            // 创建SSLContext对象，并使用我们指定的信任管理器初始化
            TrustManager[] tm = { new MyX509TrustManager() };
            SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
            sslContext.init(null, tm, new java.security.SecureRandom());
            // 从上述SSLContext对象中得到SSLSocketFactory对象
            SSLSocketFactory ssf = sslContext.getSocketFactory();
            URL url = new URL(requestUrl);
            HttpsURLConnection httpUrlConn = (HttpsURLConnection) url.openConnection();
            httpUrlConn.setSSLSocketFactory(ssf);
            httpUrlConn.setDoOutput(true);
            httpUrlConn.setDoInput(true);
            httpUrlConn.setUseCaches(false);
            // 设置请求方式（GET/POST）
            httpUrlConn.setRequestMethod(requestMethod);
            if ("GET".equalsIgnoreCase(requestMethod))
                httpUrlConn.connect();
            // 当有数据需要提交时
            if (null != outputStr) {
                OutputStream outputStream = httpUrlConn.getOutputStream();
                // 注意编码格式，防止中文乱码
                outputStream.write(outputStr.getBytes("UTF-8"));
                outputStream.close();
            }
            // 将返回的输入流转换成字符串
            InputStream inputStream = httpUrlConn.getInputStream();
            InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "UTF-8");
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String str = null;
            while ((str = bufferedReader.readLine()) != null) {
                buffer.append(str);
            bufferedReader.close();
            inputStreamReader.close();
            // 释放资源
            inputStream.close();
            inputStream = null;
            httpUrlConn.disconnect();
            jsonObject = JSONObject.fromObject(buffer.toString());
        } catch (ConnectException ce) {
            // Weixin server connection timed out
        } catch (Exception e) {
            // https request error:{}
            // e.printStackTrace();
        }
        return jsonObject;
    }
     * 2.获取access_token
     * @param appid
     *            凭证
     * @param appsecret
     *            密钥
     * @return
    public static AccessToken getAccessToken(String appid, String appsecret) {
        AccessToken accessToken = null;
        String requestUrl = access_token_url.replace("{corpId}", appid).replace("{corpsecret}", appsecret);
        JSONObject jsonObject = httpRequest(requestUrl, "GET", null);
        // 如果请求成功
        if (null != jsonObject) {
            try {
                accessToken = new AccessToken();
                accessToken.setToken(jsonObject.getString("access_token"));
                accessToken.setExpiresIn(jsonObject.getInt("expires_in"));
            } catch (JSONException e) {
                accessToken = null;
                // 获取token失败
                // log.error("获取token失败 errcode:{} errmsg:{}"+
                // jsonObject.getInt("errcode")+jsonObject.getString("errmsg"));
        return accessToken;
}

package com.toone.itop.formula.function.inte.service;
import net.sf.json.JSONObject;
import com.google.gson.Gson;
import com.toone.itop.formula.function.inte.model.Text;
import com.toone.itop.formula.function.inte.model.TextMessage;
import com.toone.itop.formula.function.inte.util.WeChatParamesUtil;
import com.toone.itop.formula.function.inte.util.WeChatUtil;
/**
 * @desc : 发送消息
 * 
 */
public class WeChatService {
    private static String sendMessage_url = "https://qyapi.weixin.qq.com/cgi-bin/message/send?access_token=ACCESS_TOKEN";
    /**
     * @desc ：0.公共方法：发送消息
     * @param accessToken
     * @param message
     *            void
     */
    public static String sendMessage(String uid, String content) {
        // 1.获取access_token:根据企业id和应用密钥获取access_token,并拼接请求url
        String accessToken = WeChatUtil.getAccessToken(WeChatParamesUtil.corpId, WeChatParamesUtil.corpsecret).getToken();
        // 2.获取发送对象，并转成json
        Gson gson = new Gson();
        TextMessage message = new TextMessage();
        // 1.1非必需
        message.setTouser(uid); // 不区分大小写
        //message.setToparty("1");
        //message.getTouser(totag);
        // txtMsg.setSafe(0);
        // 1.2必需
        message.setMsgtype("text");
        message.setAgentid(WeChatParamesUtil.agentId);
        Text text = new Text();
        text.setContent(content);
        message.setText(text);
        String jsonMessage = gson.toJson(message);
        // 3.获取请求的url
        String url = sendMessage_url.replace("ACCESS_TOKEN", accessToken);
        // 4.调用接口，发送消息
        JSONObject jsonObject = WeChatUtil.httpRequest(url, "POST", jsonMessage);
        // 4.错误消息处理
        if (null != jsonObject) {
            if (0 != jsonObject.getInt("errcode")) {
                System.out.println("消息发送失败 errcode:{} errmsg:{}" + jsonObject.getInt("errcode") + jsonObject.getString("errmsg"));
            }
        }
        return jsonObject.toString();
    }
    public static void main(String[] args) {
        // 0.设置消息内容
        String content = "这是一条测试消息";
        //userId为企业用户的id
        String userId = "qianxia";
        // 3.发送消息：调用业务类，发送消息
        WeChatService.sendMessage(userId, content);
    }
}