一.背景说明
该博客主要讲述的是spring boot整合hession实现Java编程中的RPC（远程调用）。实现RPC的方式还有很多例如Java的RMI，webservice等。这里主要讲解hessian的方式。二.hessian服务端
2.1创建一个spring boot项目添加web依赖和hessian依赖
pom.xml如下:<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>net.xqlee.project</groupId>
<artifactId>demo-springboot-rpc-hessian-server</artifactId>
<version>2.0</version>
<packaging>jar</packaging>
<name>demo-springboot-rpc-hessian-server</name>
<description>lee-leftso-v2.0</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.8.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/com.caucho/hessian -->
<dependency>
<groupId>com.caucho</groupId>
<artifactId>hessian</artifactId>
<version>4.0.51</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
2.2创建一个简单的service接口并实现
HelloWorldServcie.java接口:package net.xqlee.project.service;
public interface HelloWorldService {
String sayHello(String name);
}
package net.xqlee.project.service;
import org.springframework.stereotype.Service;
@Service("HelloWorldService")
public class HelloWorldServiceServiceImp implements HelloWorldService {
@Override
public String sayHello(String name) {
return "Hello, " + name;
}
}
2.3注册service接口到hessian工厂
package net.xqlee.project;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.remoting.caucho.HessianServiceExporter;
import net.xqlee.project.service.HelloWorldService;
@SpringBootApplication
public class DemoSpringbootRpcHessianApplication {
@Autowired
private HelloWorldService helloWorldService;
public static void main(String[] args) {
SpringApplication.run(DemoSpringbootRpcHessianApplication.class, args);
}
// 发布服务
@Bean(name = "/HelloWorldService")
public HessianServiceExporter accountService() {
HessianServiceExporter exporter = new HessianServiceExporter();
exporter.setService(helloWorldService);
exporter.setServiceInterface(HelloWorldService.class);
return exporter;
}
}
至此服务端编写完毕。
提示:
这里需要一个操作.eclipse中进行右键导出，将接口导出到一个jar包文件,这样也是方便调用方使用。我这里导出并命令为rpc-hessian-demo-interface.jar
三.hessian客服端
3.1创建一个spring boot项目添加web依赖和hessian依赖
注意,还需要引入刚才服务端导出的rpc-hessian-demo-interface.jarpom.xml文件:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>net.xqlee.project</groupId>
<artifactId>demo-springboot-rpc-hessian-client</artifactId>
<version>2.0</version>
<packaging>jar</packaging>
<name>demo-springboot-rpc-hessian-client</name>
<description>lee-leftso-v2.0</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.8.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/com.caucho/hessian -->
<dependency>
<groupId>com.caucho</groupId>
<artifactId>hessian</artifactId>
<version>4.0.51</version>
</dependency>
<!-- 本地引入hessian服务端的接口 -->
<dependency>
<groupId>net.xqlee.project</groupId>
<artifactId>rpc-hessian-demo</artifactId>
<version>1.0</version>
<scope>system</scope>
<systemPath>${project.basedir}/lib/rpc-hessian-demo-interface.jar</systemPath>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
3.2将引入的服务端接口通过hessian实例化
package net.xqlee.project;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.remoting.caucho.HessianProxyFactoryBean;
import net.xqlee.project.service.HelloWorldService;
@SpringBootApplication
public class DemoSpringbootRpcHessianClientApplication {
public static void main(String[] args) {
SpringApplication.run(DemoSpringbootRpcHessianClientApplication.class, args);
}
@Bean
public HessianProxyFactoryBean helloClient() {
HessianProxyFactoryBean factory = new HessianProxyFactoryBean();
factory.setServiceUrl("http://localhost:8083/HelloWorldService");
factory.setServiceInterface(HelloWorldService.class);
return factory;
}
}
3.3创建一个测试的controller进行调用测试
package net.xqlee.project.controller;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import net.xqlee.project.service.HelloWorldService;
@RestController
public class DemoHessianController {
@Autowired
HelloWorldService helloWorldService;
@GetMapping("/rpchello.do")
public Object rpcSayHello(String name) {
return helloWorldService.sayHello(name);
}
}
浏览器访问地址:
https://www.leftso.com/article/294.html
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