本文寫的是極光推送JAVA後臺程式碼，小弟第一次接觸推送，特此謹記，以備其他同道中人和自己日後之需
首先，POM檔案，以下是極光需要的所有jar包,千萬要記得極光需要slf4j的jar包，必須引入slf4j
        <dependency>
            <groupId>cn.jpush.api</groupId>
            <artifactId>jpush-client</artifactId>
            <version>3.2.11</version>
        </dependency>

        <dependency>
            <groupId>org.slf
 
4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.21</version>
        </dependency>
        <dependency>
           <groupId>com.google.code.gson</groupId>
           <artifactId>gson</artifactId>
           <version>2.2
 
.4</version>
       </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.21</version>
        </dependency>

        <dependency>
            <groupId>org.slf
 
4j</groupId>
            <artifactId>jcl-over-slf4j</artifactId>
            <version>1.7.21</version>
        </dependency>

然後，我們需要知道，andriod的推送訊息標題可有可無，沒有的話andriod開發人員也可以加標題，但是ios的推送標題是沒有的，這個只能前臺ios開發人員加
還有就是極光推送可分為andriod推送，ios推送，windowphone推送，按照別名推送(指固定某臺機器)，推送全部，因為專案只要求andriod和ios，所有這裡沒有windowphone和別名推送
還有就是極光推送，我們必須要有appKey和masterSecret，這兩個引數在我們公司是他們前端開發從極光官網申請的
java程式碼
package util;


import java.util.HashMap;
import java.util.Map;


import cn.jiguang.common.resp.APIConnectionException;
import cn.jiguang.common.resp.APIRequestException;
import cn.jpush.api.JPushClient;
import cn.jpush.api.push.model.Platform;
import cn.jpush.api.push.model.PushPayload;
import cn.jpush.api.push.model.audience.Audience;
import cn.jpush.api.push.model.notification.Notification;




public class JPushUtil {
    public static String appkey="1bf00f1d93543234d784tre4";
    public static String masterSecret="2a3rrert0e99949cf7d31r3ewe";

    public static void main(String[] args) throws Exception {
    sendAll();
    sendAndroid();
    sendIOS();
    }


    /**
     * 推送所有的終端
     **/
    public static void sendAll() throws Exception {
        JPushClient jpushClient = new JPushClient(masterSecret,appkey);
        //這個map是自己隨便寫的，因為前臺開發人員要根據這個map決定去app的哪個頁面，這是後臺和前臺協定好的
        Map<String, String> extras = new HashMap<String, String>();
        extras.put("aa", "aakey");
        extras.put("bb", "bbkey");
        PushPayload ppl = PushPayload.newBuilder().setPlatform(Platform.all()).setAudience(Audience.all())
                .setNotification(Notification.ios("內容", extras)).build();
        jpushClient.sendPush(ppl);
    }


    /**
     * 推送Android
     **/
    public static void sendAndroid(String msg) throws Exception {
        JPushClient jpushClient = new JPushClient(masterSecret,appkey);
        Map<String, String> extras = new HashMap<String, String>();
        extras.put("aa", "aakey");
        extras.put("bb", "bbkey");
        PushPayload ppl = PushPayload.newBuilder().setPlatform(Platform.all()).setAudience(Audience.all())
                .setNotification(Notification.android("內容", "標題", extras)).build();
        jpushClient.sendPush(ppl);
    }


    /**
     * 推送IOS
     **/
    public static void sendIOS(String msg) throws Exception {
        JPushClient jpushClient = new JPushClient(masterSecret,appkey);
        Map<String, String> extras = new HashMap<String, String>();
        extras.put("aa", "aakey");
        extras.put("bb", "bbkey");
        PushPayload ppl = PushPayload.newBuilder().setPlatform(Platform.all())
                .setAudience(Audience.all())
                .setNotification(Notification.ios("內容", extras)).build();
        jpushClient.sendPush(ppl);
    }


}