52 lines
1.9 KiB
Java
52 lines
1.9 KiB
Java
package part2.Server.netty.handler;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.SimpleChannelInboundHandler;
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import lombok.AllArgsConstructor;
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import part2.Server.provider.ServiceProvider;
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import part2.common.Message.RpcRequest;
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import part2.common.Message.RpcResponse;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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/**
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* @author wxx
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* @version 1.0
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* @create 2024/2/26 16:40
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* 因为是服务器端，我们知道接受到请求格式是RPCRequest
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* Object类型也行，强制转型就行
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*/
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@AllArgsConstructor
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public class NettyRPCServerHandler extends SimpleChannelInboundHandler<RpcRequest> {
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private ServiceProvider serviceProvider;
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@Override
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protected void channelRead0(ChannelHandlerContext ctx, RpcRequest request) throws Exception {
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RpcResponse response = getResponse(request);
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ctx.writeAndFlush(response);
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ctx.close();
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}
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@Override
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public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
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cause.printStackTrace();
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ctx.close();
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}
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private RpcResponse getResponse(RpcRequest rpcRequest){
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//得到服务名
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String interfaceName=rpcRequest.getInterfaceName();
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//得到服务端相应服务实现类
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Object service = serviceProvider.getService(interfaceName);
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//反射调用方法
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Method method=null;
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try {
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method= service.getClass().getMethod(rpcRequest.getMethodName(), rpcRequest.getParamsType());
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Object invoke=method.invoke(service,rpcRequest.getParams());
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return RpcResponse.sussess(invoke);
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} catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
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e.printStackTrace();
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System.out.println("方法执行错误");
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return RpcResponse.fail();
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}
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}
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}
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