Java——定時請求後端介面資料傳送RabbitMQ訊息佇列到指定MQ伺服器
阿新 • • 發佈：2019-02-14
RabbitMQ入門參考部落格：http://m.blog.csdn.net/article/details?id=50487028（內含介紹、環境配置及基本實現說明）
RabbitMQ官方文件參考，傳送Topic exchange佇列：http://www.rabbitmq.com/tutorials/tutorial-five-java.html（內含各種語言的各種實現方法）
專案部分程式碼：
1.config類
package com.ict.common; public class Hxyconfig { //MQ伺服器的Host和使用者名稱密碼 public static String sendMQHostHXY="10.1.4.31"; public static String UserNameHXY="admin"; public static String PassWordHXY="admin"; public static int portHXY=5672; // public static String exchangeName="out_exchange_ict"; //多久傳送一次MQ資料 public static int sendSecond=5; //訊息佇列名 //船舶異常 public static String queAnomaly="out_ict_anomaly"; //網路監控 public static String queAISNetworkState="out_ict_ais_network_state"; //船數統計 public static String queShipStatistic="out_ict_ship_statistic"; //雷達融合 public static String queRadarFusion="out_ict_radar_fusion"; //Java後端程式部署伺服器地址 public static String HostHXY="10.1.2.11"; }
2.定時請求介面並且傳送topic exchange的訊息到伺服器
package com.ict.common;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
public class HttpRequest {
/**
*
* @param url
* 傳送請求的URL
* @param param
* 請求引數，請求引數應該是 name1=value1&name2=value2 的形式。
* @return URL 所代表遠端資源的響應結果
*/
public static String sendGet(String url, String param) {
String result = "";
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
URL realUrl = new URL(urlNameString);
// 開啟和URL之間的連線
URLConnection connection = realUrl.openConnection();
// 設定通用的請求屬性
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 建立實際的連線
connection.connect();
// 獲取所有響應頭欄位
Map<String, List<String>> map = connection.getHeaderFields();
// 遍歷所有的響應頭欄位
for (String key : map.keySet()) {
// System.out.println(key + "--->" + map.get(key));
}
// 定義 BufferedReader輸入流來讀取URL的響應
in = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("傳送GET請求出現異常！" + e);
e.printStackTrace();
}
// 使用finally塊來關閉輸入流
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}
/**
* 向指定 URL 傳送POST方法的請求
*
* @param url
* 傳送請求的 URL
* @param param
* 請求引數，請求引數應該是 name1=value1&name2=value2 的形式。
* @return 所代表遠端資源的響應結果
*/
public static String sendPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realUrl = new URL(url);
// 開啟和URL之間的連線
URLConnection conn = realUrl.openConnection();
// 設定通用的請求屬性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 傳送POST請求必須設定如下兩行
conn.setDoOutput(true);
conn.setDoInput(true);
// 獲取URLConnection物件對應的輸出流
out = new PrintWriter(conn.getOutputStream());
// 傳送請求引數
out.print(param);
// flush輸出流的緩衝
out.flush();
// 定義BufferedReader輸入流來讀取URL的響應
in = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("傳送 POST 請求出現異常！"+e);
e.printStackTrace();
}
//使用finally塊來關閉輸出流、輸入流
finally{
try{
if(out!=null){
out.close();
}
if(in!=null){
in.close();
}
}
catch(IOException ex){
ex.printStackTrace();
}
}
return result;
}
static Channel channel_queAnomaly = null;
public static void main(String[] args) {
/** * 建立連線連線到MabbitMQ */
ConnectionFactory factory = new ConnectionFactory();
//設定MabbitMQ所在主機ip或者主機名
factory.setHost(Hxyconfig.sendMQHostHXY);
factory.setUsername(Hxyconfig.UserNameHXY);
factory.setPassword(Hxyconfig.PassWordHXY);
factory.setPort(Hxyconfig.portHXY);
//建立一個連線
Connection connection = null;
try {
connection = factory.newConnection();
//建立一個頻道
channel_queAnomaly = connection.createChannel();
//指定一個exchangeName
channel_queAnomaly.exchangeDeclare(Hxyconfig.exchangeName, "topic");
} catch (IOException e1) {
e1.printStackTrace();
}
// 定時請求介面資料，並且將返回的資料通過MQ訊息佇列傳送到伺服器
Timer timer = new Timer();
SendRabbit sr=new SendRabbit();
String urlHXYAnomaly="http://"+Hxyconfig.HostHXY+":8080/HxySys/realTime/HXYAnomaly.do";
String urlhXYShipStatistic="http://"+Hxyconfig.HostHXY+":8080/HxySys/realTime/HXYShipStatistic.do";
String urlhXYAISNetwork="http://"+Hxyconfig.HostHXY+":8080/HxySys/realTime/HXYAISNetwork.do";
String urlhXYAISRadarFusion="http://"+Hxyconfig.HostHXY+":8080/HxySys/realTime/HXYAISRadarFusion.do";
timer.schedule(new TimerTask() {
public void run() {
Date da=new Date();
System.out.println("Send RabbitMQ Start : "+da.toString());
//傳送 GET 請求
String hXYAnomaly=HttpRequest.sendGet(urlHXYAnomaly, "key=123&v=456");
String hXYShipStatistic=HttpRequest.sendGet(urlhXYShipStatistic, "key=123&v=456");
String hXYAISNetwork=HttpRequest.sendGet(urlhXYAISNetwork, "key=123&v=456");
String hXYAISRadarFusion=HttpRequest.sendGet(urlhXYAISRadarFusion, "key=123&v=456");
try {
if(hXYAnomaly.equals("")){
}else{
// 該方法和本類中的方法一致
sr.SendMQ2(channel_queAnomaly,hXYAnomaly,Hxyconfig.queAnomaly);
}
if(hXYAISRadarFusion.equals("")){
}else{
sr.SendMQ2(channel_queAnomaly,hXYAISRadarFusion,Hxyconfig.queRadarFusion);
}
sr.SendMQ2(channel_queAnomaly,hXYShipStatistic,Hxyconfig.queShipStatistic);
sr.SendMQ2(channel_queAnomaly,hXYAISNetwork,Hxyconfig.queAISNetworkState);
}catch (Exception e){
e.printStackTrace();
return;
}
}
},0,1000*Hxyconfig.sendSecond);// 設定指定的時間time,此處為2000毫秒
//傳送 POST 請求
/*String sr=HttpRequest.sendPost("http://www.iyfang.com/legoguide/server/product/query", "set_number=42009-1&lang=zh-CN");
System.out.println(sr);*/
}
public void SendMQ2(Channel channel,String jsStr,String routingKey) throws java.io.IOException{
//往佇列中發出一條訊息
channel.basicPublish(Hxyconfig.exchangeName, routingKey, null,jsStr.getBytes());
// System.out.println(jsStr);
}
}