您好,登录后才能下订单哦!
最近有朋友向我询问一些Netty与SpringBoot整合的相关问题,这里,我就总结了一下基本整合流程,也就是说,这篇文章 ,默认大家是对netty与Spring,SpringMVC的整合是没有什么问题的。现在,就进入正题吧。
Server端:
总的来说,服务端还是比较简单的,自己一共写了三个核心类。分别是
下面开始集成过程:
在pom.xml中添加以下依赖
<dependency> <groupId>io.netty</groupId> <artifactId>netty-all</artifactId> <version>5.0.0.Alpha2</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-configuration-processor</artifactId> <optional>true</optional> </dependency>
让SpringBoot的启动类实现CommandLineRunner接口并重写run方法,比如我的启动类是CloudApplication.java
@SpringBootApplication public class CloudApplication implements CommandLineRunner { public static void main(String[] args) { SpringApplication.run(CloudApplication.class, args); } @Override public void run(String... strings) { } }
创建类NettyServerListener.java
// 读取yml的一个配置类 import com.edu.hart.modules.constant.NettyConfig; // Netty连接信息配置类 import com.edu.hart.modules.constant.NettyConstant; // import com.edu.hart.rpc.util.ObjectCodec; import io.netty.bootstrap.ServerBootstrap; import io.netty.channel.ChannelFuture; import io.netty.channel.ChannelInitializer; import io.netty.channel.ChannelPipeline; import io.netty.channel.EventLoopGroup; import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.socket.SocketChannel; import io.netty.channel.socket.nio.NioServerSocketChannel; import io.netty.handler.codec.LengthFieldBasedFrameDecoder; import io.netty.handler.codec.LengthFieldPrepender; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Component; import javax.annotation.PreDestroy; import javax.annotation.Resource; /** * 服务启动监听器 * * @author 叶云轩 */ @Component public class NettyServerListener { /** * NettyServerListener 日志输出器 * * @author 叶云轩 create by 2017/10/31 18:05 */ private static final Logger LOGGER = LoggerFactory.getLogger(NettyServerListener.class); /** * 创建bootstrap */ ServerBootstrap serverBootstrap = new ServerBootstrap(); /** * BOSS */ EventLoopGroup boss = new NioEventLoopGroup(); /** * Worker */ EventLoopGroup work = new NioEventLoopGroup(); /** * 通道适配器 */ @Resource private ServerChannelHandlerAdapter channelHandlerAdapter; /** * NETT服务器配置类 */ @Resource private NettyConfig nettyConfig; /** * 关闭服务器方法 */ @PreDestroy public void close() { LOGGER.info("关闭服务器...."); //优雅退出 boss.shutdownGracefully(); work.shutdownGracefully(); } /** * 开启及服务线程 */ public void start() { // 从配置文件中(application.yml)获取服务端监听端口号 int port = nettyConfig.getPort(); serverBootstrap.group(boss, work) .channel(NioServerSocketChannel.class) .option(ChannelOption.SO_BACKLOG, 100) .handler(new LoggingHandler(LogLevel.INFO)); try { //设置事件处理 serverBootstrap.childHandler(new ChannelInitializer<SocketChannel>() { @Override protected void initChannel(SocketChannel ch) throws Exception { ChannelPipeline pipeline = ch.pipeline(); pipeline.addLast(new LengthFieldBasedFrameDecoder(nettyConfig.getMaxFrameLength() , 0, 2, 0, 2)); pipeline.addLast(new LengthFieldPrepender(2)); pipeline.addLast(new ObjectCodec()); pipeline.addLast(channelHandlerAdapter); } }); LOGGER.info("netty服务器在[{}]端口启动监听", port); ChannelFuture f = serverBootstrap.bind(port).sync(); f.channel().closeFuture().sync(); } catch (InterruptedException e) { LOGGER.info("[出现异常] 释放资源"); boss.shutdownGracefully(); work.shutdownGracefully(); } } }
创建类ServerChannelHandlerAdapter.java - 通道适配器
// 记录调用方法的元信息的类 import com.edu.hart.rpc.entity.MethodInvokeMeta; import io.netty.channel.ChannelHandler.Sharable; import io.netty.channel.ChannelHandlerAdapter; import io.netty.channel.ChannelHandlerContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.stereotype.Component; import javax.annotation.Resource; /** * 多线程共享 */ @Component @Sharable public class ServerChannelHandlerAdapter extends ChannelHandlerAdapter { /** * 日志处理 */ private Logger logger = LoggerFactory.getLogger(ServerChannelHandlerAdapter.class); /** * 注入请求分排器 */ @Resource private RequestDispatcher dispatcher; @Override public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { cause.printStackTrace(); ctx.close(); } @Override public void channelRead(ChannelHandlerContext ctx, Object msg) { MethodInvokeMeta invokeMeta = (MethodInvokeMeta) msg; // 屏蔽toString()方法 if (invokeMeta.getMethodName().endsWith("toString()") && !"class java.lang.String".equals(invokeMeta.getReturnType().toString())) logger.info("客户端传入参数 :{},返回值:{}", invokeMeta.getArgs(), invokeMeta.getReturnType()); dispatcher.dispatcher(ctx, invokeMeta); } }
RequestDispatcher.java
// 封装的返回信息枚举类 import com.edu.hart.modules.communicate.ResponseCodeEnum; // 封装的返回信息实体类 import com.edu.hart.modules.communicate.ResponseResult; // 封装的连接常量类 import com.edu.hart.modules.constant.NettyConstant; // 记录元方法信息的实体类 import com.edu.hart.rpc.entity.MethodInvokeMeta; // 对于返回值为空的一个处理 import com.edu.hart.rpc.entity.NullWritable; // 封装的返回信息实体工具类 import com.edu.hart.rpc.util.ResponseResultUtil; import io.netty.channel.ChannelFuture; import io.netty.channel.ChannelFutureListener; import io.netty.channel.ChannelHandlerContext; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import org.springframework.stereotype.Component; import java.lang.reflect.Method; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; /** * 请求分排器 */ @Component public class RequestDispatcher implements ApplicationContextAware { private ExecutorService executorService = Executors.newFixedThreadPool(NettyConstant.getMaxThreads()); private ApplicationContext app; /** * 发送 * * @param ctx * @param invokeMeta */ public void dispatcher(final ChannelHandlerContext ctx, final MethodInvokeMeta invokeMeta) { executorService.submit(() -> { ChannelFuture f = null; try { Class<?> interfaceClass = invokeMeta.getInterfaceClass(); String name = invokeMeta.getMethodName(); Object[] args = invokeMeta.getArgs(); Class<?>[] parameterTypes = invokeMeta.getParameterTypes(); Object targetObject = app.getBean(interfaceClass); Method method = targetObject.getClass().getMethod(name, parameterTypes); Object obj = method.invoke(targetObject, args); if (obj == null) { f = ctx.writeAndFlush(NullWritable.nullWritable()); } else { f = ctx.writeAndFlush(obj); } f.addListener(ChannelFutureListener.CLOSE); } catch (Exception e) { ResponseResult error = ResponseResultUtil.error(ResponseCodeEnum.SERVER_ERROR); f = ctx.writeAndFlush(error); } finally { f.addListener(ChannelFutureListener.CLOSE); } }); } /** * 加载当前application.xml * * @param ctx * @throws BeansException */ public void setApplicationContext(ApplicationContext ctx) throws BeansException { this.app = ctx; } }
application.yml文件中对于netty的一个配置
netty: port: 11111
NettyConfig.java
import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.stereotype.Component; /** * 读取yml配置文件中的信息 * Created by 叶云轩 on 2017/10/31 - 18:38 * Concat tdg_yyx@foxmail.com */ @Component @ConfigurationProperties(prefix = "netty") public class NettyConfig { private int port; public int getPort() { return port; } public void setPort(int port) { this.port = port; } }
NettyConstanct.java
import org.springframework.stereotype.Component; /** * Netty服务器常量 * Created by 叶云轩 on 2017/10/31 - 17:47 * Concat tdg_yyx@foxmail.com */ @Component public class NettyConstant { /** * 最大线程量 */ private static final int MAX_THREADS = 1024; /** * 数据包最大长度 */ private static final int MAX_FRAME_LENGTH = 65535; public static int getMaxFrameLength() { return MAX_FRAME_LENGTH; } public static int getMaxThreads() { return MAX_THREADS; } }
至此,netty服务端算是与SpringBoot整合成功。那么看一下启动情况吧。
Client端:
Client我感觉要比Server端要麻烦一点。这里还是先给出核心类吧。
在Client端里。SpringBoot的启动类要继承SpringBootServletInitializer这个类,并覆盖SpringApplicationBuilder方法
import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.boot.web.support.SpringBootServletInitializer; @SpringBootApplication public class OaApplication extends SpringBootServletInitializer { public static void main(String[] args) { SpringApplication.run(OaApplication.class, args); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) { return builder.sources(OaApplication.class); } }
NettyClient.java
// 记录元方法信息的实体类 import com.edu.hart.rpc.entity.MethodInvokeMeta; import io.netty.bootstrap.Bootstrap; import io.netty.channel.ChannelFuture; import io.netty.channel.EventLoopGroup; import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.socket.nio.NioSocketChannel; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javax.management.MBeanServer; /** * 客户端发送类 * Created by 叶云轩 on 2017/6/16-16:58 * Concat tdg_yyx@foxmail.com */ public class NettyClient { private Logger logger = LoggerFactory.getLogger(MBeanServer.class); private Bootstrap bootstrap; private EventLoopGroup worker; private int port; private String url; private int MAX_RETRY_TIMES = 10; public NettyClient(String url, int port) { this.url = url; this.port = port; bootstrap = new Bootstrap(); worker = new NioEventLoopGroup(); bootstrap.group(worker); bootstrap.channel(NioSocketChannel.class); } public void close() { logger.info("关闭资源"); worker.shutdownGracefully(); } public Object remoteCall(final MethodInvokeMeta cmd, int retry) { try { CustomChannelInitializerClient customChannelInitializer = new CustomChannelInitializerClient(cmd); bootstrap.handler(customChannelInitializer); ChannelFuture sync = bootstrap.connect(url, port).sync(); sync.channel().closeFuture().sync(); Object response = customChannelInitializer.getResponse(); return response; } catch (InterruptedException e) { retry++; if (retry > MAX_RETRY_TIMES) { throw new RuntimeException("调用Wrong"); } else { try { Thread.sleep(100); } catch (InterruptedException e1) { e1.printStackTrace(); } logger.info("第{}次尝试....失败", retry); return remoteCall(cmd, retry); } } } }
ClientChannelHandlerAdapter.java
import com.edu.hart.rpc.entity.MethodInvokeMeta; import io.netty.channel.ChannelHandlerAdapter; import io.netty.channel.ChannelHandlerContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Created by 叶云轩 on 2017/6/16-17:03 * Concat tdg_yyx@foxmail.com */ public class ClientChannelHandlerAdapter extends ChannelHandlerAdapter { private Logger logger = LoggerFactory.getLogger(ClientChannelHandlerAdapter.class); private MethodInvokeMeta methodInvokeMeta; private CustomChannelInitializerClient channelInitializerClient; public ClientChannelHandlerAdapter(MethodInvokeMeta methodInvokeMeta, CustomChannelInitializerClient channelInitializerClient) { this.methodInvokeMeta = methodInvokeMeta; this.channelInitializerClient = channelInitializerClient; } @Override public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception { logger.info("客户端出异常了,异常信息:{}", cause.getMessage()); cause.printStackTrace(); ctx.close(); } @Override public void channelActive(ChannelHandlerContext ctx) throws Exception { if (methodInvokeMeta.getMethodName().endsWith("toString") && !"class java.lang.String".equals(methodInvokeMeta.getReturnType().toString())) logger.info("客户端发送信息参数:{},信息返回值类型:{}", methodInvokeMeta.getArgs(), methodInvokeMeta.getReturnType()); ctx.writeAndFlush(methodInvokeMeta); } @Override public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { channelInitializerClient.setResponse(msg); } }
CustomChannelInitializerClient.java
import com.edu.hart.rpc.entity.MethodInvokeMeta; import com.edu.hart.rpc.entity.NullWritable; import com.edu.hart.rpc.util.ObjectCodec; import io.netty.channel.ChannelInitializer; import io.netty.channel.ChannelPipeline; import io.netty.channel.socket.SocketChannel; import io.netty.handler.codec.LengthFieldBasedFrameDecoder; import io.netty.handler.codec.LengthFieldPrepender; import org.slf4j.Logger; import org.slf4j.LoggerFactory;/** Created by 叶云轩 on 2017/6/16-15:01 Concat tdg_yyx@foxmail.com */ public class CustomChannelInitializerClient extends ChannelInitializer { private Logger logger = LoggerFactory.getLogger(CustomChannelInitializerClient.class); private MethodInvokeMeta methodInvokeMeta; private Object response; public CustomChannelInitializerClient(MethodInvokeMeta methodInvokeMeta) { if (!"toString".equals(methodInvokeMeta.getMethodName())) { logger.info("[CustomChannelInitializerClient] 调用方法名:{},入参:{},参数类型:{},返回值类型{}" , methodInvokeMeta.getMethodName() , methodInvokeMeta.getArgs() , methodInvokeMeta.getParameterTypes() , methodInvokeMeta.getReturnType()); } this.methodInvokeMeta = methodInvokeMeta; } public Object getResponse() { if (response instanceof NullWritable) { return null; } return response; } public void setResponse(Object response) { this.response = response; } @Override protected void initChannel(SocketChannel ch) { ChannelPipeline pipeline = ch.pipeline(); pipeline.addLast(new LengthFieldPrepender(2)); pipeline.addLast(new LengthFieldBasedFrameDecoder(1024 * 1024, 0, 2, 0, 2)); pipeline.addLast(new ObjectCodec()); pipeline.addLast(new ClientChannelHandlerAdapter(methodInvokeMeta, this)); }}
4. RPCProxyFactoryBean.java
import com.edu.hart.rpc.entity.MethodInvokeMeta; import com.edu.hart.rpc.util.WrapMethodUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.config.AbstractFactoryBean; import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method; import java.lang.reflect.Proxy; /** * Created by 叶云轩 on 2017/6/16-17:16 * Concat tdg_yyx@foxmail.com */ public class RPCProxyFactoryBean extends AbstractFactoryBean implements InvocationHandler { private Logger logger = LoggerFactory.getLogger(RPCProxyFactoryBean.class); private Class interfaceClass; private NettyClient nettyClient; @Override public Class<?> getObjectType() { return interfaceClass; } @Override protected Object createInstance() throws Exception { logger.info("[代理工厂] 初始化代理Bean : {}", interfaceClass); return Proxy.newProxyInstance(interfaceClass.getClassLoader(), new Class[]{interfaceClass}, this); } @Override public Object invoke(Object proxy, Method method, Object[] args) { final MethodInvokeMeta methodInvokeMeta = WrapMethodUtils.readMethod(interfaceClass, method, args); if (!methodInvokeMeta.getMethodName().equals("toString")) { logger.info("[invoke] 调用接口{},调用方法名:{},入参:{},参数类型:{},返回值类型{}", methodInvokeMeta.getInterfaceClass(), methodInvokeMeta.getMethodName() , methodInvokeMeta.getArgs(), methodInvokeMeta.getParameterTypes(), methodInvokeMeta.getReturnType()); } return nettyClient.remoteCall(methodInvokeMeta, 0); } public void setInterfaceClass(Class interfaceClass) { this.interfaceClass = interfaceClass; } public void setNettyClient(NettyClient nettyClient) { this.nettyClient = nettyClient; } }
至此,netty-client与SpringBoot的集成了算完毕了。同样 ,在netty-client中也要加入相应的依赖
不过上面server与client使用了一些公共的类和工具。下面也给列举中出来。
MethodInvokeMeta.java
import org.springframework.stereotype.Component; import java.io.Serializable; /** * 记录调用方法的元信息 * Created by 叶云轩 on 2017/6/7-15:41 * Concat tdg_yyx@foxmail.com */ @Component public class MethodInvokeMeta implements Serializable { private static final long serialVersionUID = 8379109667714148890L; //接口 private Class<?> interfaceClass; //方法名 private String methodName; //参数 private Object[] args; //返回值类型 private Class<?> returnType; //参数类型 private Class<?>[] parameterTypes; public Object[] getArgs() { return args; } public void setArgs(Object[] args) { this.args = args; } public Class<?> getInterfaceClass() { return interfaceClass; } public void setInterfaceClass(Class<?> interfaceClass) { this.interfaceClass = interfaceClass; } public String getMethodName() { return methodName; } public void setMethodName(String methodName) { this.methodName = methodName; } public Class[] getParameterTypes() { return parameterTypes; } public void setParameterTypes(Class<?>[] parameterTypes) { this.parameterTypes = parameterTypes; } public Class getReturnType() { return returnType; } public void setReturnType(Class returnType) { this.returnType = returnType; } }
NullWritable.java
import java.io.Serializable; /** * 服务器可能返回空的处理 * Created by 叶云轩 on 2017/6/16-16:46 * Concat tdg_yyx@foxmail.com */ public class NullWritable implements Serializable { private static final long serialVersionUID = -8191640400484155111L; private static NullWritable instance = new NullWritable(); private NullWritable() { } public static NullWritable nullWritable() { return instance; } }
ObjectCodec.java
import io.netty.buffer.ByteBuf; import io.netty.buffer.Unpooled; import io.netty.channel.ChannelHandlerContext; import io.netty.handler.codec.MessageToMessageCodec; import java.util.List; public class ObjectCodec extends MessageToMessageCodec<ByteBuf, Object> { @Override protected void encode(ChannelHandlerContext ctx, Object msg, List<Object> out) { byte[] data = ObjectSerializerUtils.serilizer(msg); ByteBuf buf = Unpooled.buffer(); buf.writeBytes(data); out.add(buf); } @Override protected void decode(ChannelHandlerContext ctx, ByteBuf msg, List<Object> out) { byte[] bytes = new byte[msg.readableBytes()]; msg.readBytes(bytes); Object deSerilizer = ObjectSerializerUtils.deSerilizer(bytes); out.add(deSerilizer); } }
ObjectSerializerUtils.java
package com.edu.hart.rpc.util; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.*; /** * 对象序列化工具 */ public class ObjectSerializerUtils { private static final Logger logger = LoggerFactory.getLogger(ObjectSerializerUtils.class); /** * 反序列化 * * @param data * @return */ public static Object deSerilizer(byte[] data) { if (data != null && data.length > 0) { try { ByteArrayInputStream bis = new ByteArrayInputStream(data); ObjectInputStream ois = new ObjectInputStream(bis); return ois.readObject(); } catch (Exception e) { logger.info("[异常信息] {}", e.getMessage()); e.printStackTrace(); } return null; } else { logger.info("[反序列化] 入参为空"); return null; } } /** * 序列化对象 * * @param obj * @return */ public static byte[] serilizer(Object obj) { if (obj != null) { try { ByteArrayOutputStream bos = new ByteArrayOutputStream(); ObjectOutputStream oos = new ObjectOutputStream(bos); oos.writeObject(obj); oos.flush(); oos.close(); return bos.toByteArray(); } catch (IOException e) { e.printStackTrace(); } return null; } else { return null; } } }
下面主要是用于Client端的:
NettyBeanSacnner.java
import com.edu.hart.rpc.client.RPCProxyFactoryBean; import org.springframework.beans.BeansException; import org.springframework.beans.factory.config.BeanFactoryPostProcessor; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.beans.factory.support.BeanDefinitionBuilder; import org.springframework.beans.factory.support.DefaultListableBeanFactory; import java.util.List; /** * 动态加载代理bean到Spring bean工厂 */ public class NettyBeanScanner implements BeanFactoryPostProcessor { private DefaultListableBeanFactory beanFactory; private String basePackage; private String clientName; public NettyBeanScanner(String basePackage, String clientName) { this.basePackage = basePackage; this.clientName = clientName; } /** * 注册Bean到Spring的bean工厂 */ public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException { this.beanFactory = (DefaultListableBeanFactory) beanFactory; // 加载远程服务的接口 List<String> resolverClass = PackageClassUtils.resolver(basePackage); for (String clazz : resolverClass) { String simpleName; if (clazz.lastIndexOf('.') != -1) { simpleName = clazz.substring(clazz.lastIndexOf('.') + 1); } else { simpleName = clazz; } BeanDefinitionBuilder gd = BeanDefinitionBuilder.genericBeanDefinition(RPCProxyFactoryBean.class); gd.addPropertyValue("interfaceClass", clazz); gd.addPropertyReference("nettyClient", clientName); this.beanFactory.registerBeanDefinition(simpleName, gd.getRawBeanDefinition()); } } }
PackageClassUtils.java
这个类要说一下,主要是用来加载Server对应的接口的。因为在Client中RPC接口没有实现类,所以要自己将这些接口加载到Spring工厂里面。但是现在有个问题就是需要使用**
SpringBoot中application.yml
basePackage: com.edu.hart.rpc.service.login;com.edu.hart.rpc.service.employee;com.edu.hart.rpc.service.authorization;
这样的方式来加载,使用通配符的时候会加载不到,这个问题我还没有解决。**
import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.File; import java.util.ArrayList; import java.util.List; /** * 字节文件加载 */ public class PackageClassUtils { private final static Logger LOGGER = LoggerFactory.getLogger(PackageClassUtils.class); /** * 解析包参数 * * @param basePackage 包名 * @return 包名字符串集合 */ public static List<String> resolver(String basePackage) { //以";"分割开多个包名 String[] splitFHs = basePackage.split(";"); List<String> classStrs = new ArrayList<>(); //s: com.yyx.util.* for (String s : splitFHs) { LOGGER.info("[加载类目录] {}", s); //路径中是否存在".*" com.yyx.util.* boolean contains = s.contains(".*"); if (contains) { //截断星号 com.yyx.util String filePathStr = s.substring(0, s.lastIndexOf(".*")); //组装路径 com/yyx/util String filePath = filePathStr.replaceAll("\\.", "/"); //获取路径 xxx/classes/com/yyx/util File file = new File(PackageClassUtils.class.getResource("/").getPath() + "/" + filePath); //获取目录下获取文件 getAllFile(filePathStr, file, classStrs); } else { String filePath = s.replaceAll("\\.", "/"); File file = new File(PackageClassUtils.class.getResource("/").getPath() + "/" + filePath); classStrs = getClassReferenceList(classStrs, file, s); } } return classStrs; } /** * 添加全限定类名到集合 * * @param classStrs 集合 * @return 类名集合 */ private static List<String> getClassReferenceList(List<String> classStrs, File file, String s) { File[] listFiles = file.listFiles(); if (listFiles != null && listFiles.length != 0) { for (File file2 : listFiles) { if (file2.isFile()) { String name = file2.getName(); String fileName = s + "." + name.substring(0, name.lastIndexOf('.')); LOGGER.info("[加载完成] 类文件:{}", fileName); classStrs.add(fileName); } } } return classStrs; } /** * 获取一个目录下的所有文件 * * @param s * @param file * @param classStrs */ private static void getAllFile(String s, File file, List<String> classStrs) { if (file.isDirectory()) { File[] files = file.listFiles(); if (files != null) for (File file1 : files) { getAllFile(s, file1, classStrs); } } else { String path = file.getPath(); String cleanPath = path.replaceAll("/", "."); String fileName = cleanPath.substring(cleanPath.indexOf(s), cleanPath.length()); LOGGER.info("[加载完成] 类文件:{}", fileName); classStrs.add(fileName); } } }
RemoteMethodInvokeUtil.java
import com.edu.hart.rpc.entity.MethodInvokeMeta; import org.springframework.beans.BeansException; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; /** * 消息处理类 * Created by 叶云轩 on 2017/6/7-15:49 * Concat tdg_yyx@foxmail.com */ public class RemoteMethodInvokeUtil implements ApplicationContextAware { private ApplicationContext applicationContext; public Object processMethod(MethodInvokeMeta methodInvokeMeta) throws InvocationTargetException, IllegalAccessException { Class interfaceClass = methodInvokeMeta.getInterfaceClass(); Object bean = applicationContext.getBean(interfaceClass); Method[] declaredMethods = interfaceClass.getDeclaredMethods(); Method method = null; for (Method declaredMethod : declaredMethods) { if (methodInvokeMeta.getMethodName().equals(declaredMethod.getName())) { method = declaredMethod; } } Object invoke = method.invoke(bean, methodInvokeMeta.getArgs()); return invoke; } @Override public void setApplicationContext(ApplicationContext app) throws BeansException { applicationContext = app; } }
WrapMethodUtils.java
import com.edu.hart.rpc.entity.MethodInvokeMeta; import java.lang.reflect.Method; public class WrapMethodUtils { /** * 获取 method的元数据信息 @param interfaceClass * @param method * @param args * @return */ public static MethodInvokeMeta readMethod(Class interfaceClass, Method method, Object[] args) { MethodInvokeMeta mim = new MethodInvokeMeta(); mim.setInterfaceClass(interfaceClass); mim.setArgs(args); mim.setMethodName(method.getName()); mim.setReturnType(method.getReturnType()); Class<?>[] parameterTypes = method.getParameterTypes(); mim.setParameterTypes(parameterTypes); return mim; } }
下面的这些类我也会用在与前台通信时使用:
ResponseEnum.java
import java.io.Serializable; /** 响应码枚举类 Created by 叶云轩 on 2017/6/13-11:53 Concat tdg_yyx@foxmail.com */ public enum ResponseCodeEnum implements Serializable { // region authentication code REQUEST_SUCCESS(10000, "请求成功"), SERVER_ERROR(99999, "服务器内部错误"),; //region 提供对外访问的方法,无需更改 /** 响应码 */ private Integer code; /** 响应信息 */ private String msg; ResponseCodeEnum(Integer code, String msg) { this.code = code; this.msg = msg; } public Integer getCode() { return code; } public String getMsg() { return msg; } //endregion }
ResponseResult.java
import java.io.Serializable; /** * 数据返回实体封装 * <p> * Created by 叶云轩 on 2017/6/13-11:38 * Concat tdg_yyx@foxmail.com * * @param <T> 通用变量 */ public class ResponseResult<T> implements Serializable { private static final long serialVersionUID = -3411174924856108156L; /** * 服务器响应码 */ private Integer code; /** * 服务器响应说明 */ private String msg; /** * 服务器响应数据 */ private T data; public ResponseResult() { } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; ResponseResult<?> that = (ResponseResult<?>) o; return (code != null ? code.equals(that.code) : that.code == null) && (msg != null ? msg.equals(that.msg) : that.msg == null) && (data != null ? data.equals(that.data) : that.data == null); } public Integer getCode() { return code; } public void setCode(Integer code) { this.code = code; } public T getData() { return data; } public void setData(T data) { this.data = data; } public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } @Override public int hashCode() { int result = code != null ? code.hashCode() : 0; result = 31 * result + (msg != null ? msg.hashCode() : 0); result = 31 * result + (data != null ? data.hashCode() : 0); return result; } @Override public String toString() { return "ResponseResult{" + "code=" + code + ", msg='" + msg + '\'' + ", data=" + data + '}'; } }
ResponseResultUtil.java
import com.edu.hart.modules.communicate.ResponseCodeEnum; import com.edu.hart.modules.communicate.ResponseResult; /** * 返回结果工具类 * Created by 叶云轩 on 2017/5/29-10:37 * Concat tdg_yyx@foxmail.com */ public class ResponseResultUtil { /** * 请求失败返回的数据结构 * * @param responseCodeEnum 返回信息枚举类 * @return 结果集 */ public static ResponseResult error(ResponseCodeEnum responseCodeEnum) { ResponseResult ResponseResult = new ResponseResult(); ResponseResult.setMsg(responseCodeEnum.getMsg()); ResponseResult.setCode(responseCodeEnum.getCode()); ResponseResult.setData(null); return ResponseResult; } /** * 没有结果集的返回数据结构 * * @return 结果集 */ public static ResponseResult success() { return success(null); } /** * 成功返回数据结构 * * @param o 返回数据对象 * @return 返回结果集 */ public static ResponseResult success(Object o) { ResponseResult responseResult = new ResponseResult(); responseResult.setMsg(ResponseCodeEnum.REQUEST_SUCCESS.getMsg()); responseResult.setCode(ResponseCodeEnum.REQUEST_SUCCESS.getCode()); responseResult.setData(o); return responseResult; } /** * 判断是否成功 * * @param responseResult 请求结果 * @return 判断结果 */ public static boolean judgementSuccess(ResponseResult responseResult) { return responseResult.getCode().equals(ResponseCodeEnum.REQUEST_SUCCESS.getCode()); } }
来,我们测试一下远程通信:
Client调用Server的一个接口。可以看到在hart-oa项目中,RPCEmployeeService没有任何实现类,控制台中打印了方法的调用 以及入参信息
Server断点监听到远程调用,CloudApplication项目为Server端,我们可以看到接收到来自hart-oa的一个请求,参数一致。在CloudApplication中进行相应的处理后,返回到Client(hart-oa)
返回信息到Client,可以看到我们(hart-oa)收到了来自CloudApplication的响应,结果是我们封装好的ResponseResult.
嗯 ~至此整合测试完成。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持亿速云。
免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。