本案例一共需要兩個項目,一個server項目,一個client項目。
測試截屏
運作client項目的httpdemo main方法,可以收到server端傳回的字元串,并且列印在控制台,就表示項目運作成功。
server項目
server隻是用來測試用的,提供一個可以通過http請求傳回字元串的接口就可以,不涉及到integration的知識。
本次測試,我簡單的用springboot 寫了一個接口。
-
源碼位址
https://gitee.com/bseaworkspace/study_java_web/tree/master/springbootbasic
- 代碼結構
- 測試
client項目
采用了spring integration getway的方式,從http的接口中擷取傳回資料。
-
源碼位址
https://gitee.com/bseaworkspace/study_java_web/tree/master/springintegrationHttp
- 代碼結構
-
測試
運作client項目的httpdemo main方法,可以收到server端傳回的字元串,并且列印在控制台,就表示項目運作成功。
源碼解析
- Gateway
gateway有一個service-interface的屬性,這個屬性指向一個interface (自定義的RequestGateway),這樣,當使用者調用該接口的方法的時候,spring integration就會自動地幫我們建立一個message,并送出到default-request -channel指定地channel上。
package com.xsz;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
* @author Oleg Zhurakousky
* @author Gary Russell
*
*/
public class HttpClientDemo {
private static Log logger = LogFactory.getLog(HttpClientDemo.class);
public static void main(String[] args) {
ConfigurableApplicationContext context = new ClassPathXmlApplicationContext(
"/META-INF/spring/integration/http-outbound-config.xml");
RequestGateway requestGateway = context.getBean("requestGateway", RequestGateway.class);
String reply = requestGateway.echo("Hello");
logger.info("\n\n++++++++++++ Replied with: " + reply + " ++++++++++++\n");
context.close();
}
}
springintegrationHttp/src/main/resources/META-INF/spring/integration/http-outbound-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:int="http://www.springframework.org/schema/integration"
xmlns:int-http="http://www.springframework.org/schema/integration/http"
xsi:schemaLocation="http://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/integration https://www.springframework.org/schema/integration/spring-integration.xsd
http://www.springframework.org/schema/integration/http https://www.springframework.org/schema/integration/http/spring-integration-http.xsd">
<int:gateway id="requestGateway"
service-inter
default-request-channel="requestChannel"/>
<int:channel id="requestChannel"/>
<int-http:outbound-gateway request-channel="requestChannel"
url="http://localhost:9001/springboot1/server"
http-method="POST"
expected-response-type="java.lang.String"/>
</beans>
Spring Integration HTTP Support
官方文檔位址:
https://docs.spring.io/spring-integration/docs/current/reference/html/http.html#inbound
- 本項目往外發送HTTP請求的元件
需要預先設定外部http api傳回的資料類型, 外面api的位址,請求方式等等
- 本項目接收外部HTTP請求的元件
Spring Integration系列
-
《1》Hello World項目
https://blog.csdn.net/h356363/article/details/112076788
-
《2》 http項目
https://blog.csdn.net/h356363/article/details/112120991