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Netty 作为 http client 请求https 的 post

时间:2019-12-28 23:37:44      阅读:524      评论:0      收藏:0      [点我收藏+]

spring boot server:

package com.example.demo.controller.ssl;

import com.example.demo.controller.ProxyController;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import serial.MyBaseProto;

/**
 * https://www.cnblogs.com/silyvin/p/12099743.html
 * Created by joyce on 2019/11/17.
 */
@Controller
@RequestMapping("/json")
public class JsonController {

    @RequestMapping(value = "/testhttps")
    @ResponseBody
    public String get() {
        return "xxx";
    }

    @RequestMapping(value = "/testhttpsPost", method = RequestMethod.POST, produces = "application/json;charset=UTF-8")
    @ResponseBody
    public TT post(@RequestBody TT tt) {

        tt.setPa("12");
        tt.setPb("22");
        return tt;
    }

    private static class TT {
        String pa;
        String pb;

        public String getPa() {
            return pa;
        }

        public void setPa(String pa) {
            this.pa = pa;
        }

        public String getPb() {
            return pb;
        }

        public void setPb(String pb) {
            this.pb = pb;
        }
    }
}

 

package com.example.demo.controller.ssl.netty;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.*;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpRequestEncoder;
import io.netty.handler.codec.http.HttpResponseDecoder;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.SslHandler;
import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
import io.netty.util.ReferenceCountUtil;

import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLException;
import java.net.URISyntaxException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeoutException;

/**
* Created by joyce on 2019/12/28.
*/
public class NettyHttpClient {

public static void main(String [] f) {
System.out.println(new NettyHttpClient().send("GET"));
System.out.println(new NettyHttpClient().send("POST"));
}

public String send(String msg) {
try {
Map<String, Object> map = new ConcurrentHashMap<>();
send(msg, map);
return (String)map.get("res");
}catch (Exception e) {
e.printStackTrace();
}
return null;
}

private void send(String msg, Map<String, Object> map) throws Exception, URISyntaxException {
try {

final Bootstrap b = BootStrapManager.newBootStrap();
b.handler(new ClientInit(new MainHandler(map, msg), SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build()));
ChannelFuture f = b.connect("localhost", 8080);
f.channel().closeFuture().sync(); 阻塞
} catch (Exception e) {
e.printStackTrace();
} finally {

}
}

private static class ClientInit extends ChannelInitializer<SocketChannel> {

private ChannelInboundHandler handler;
private SslContext context;
public ClientInit(ChannelInboundHandler handler, SslContext context) {
this.handler = handler;
this.context = context;
}

@Override
protected void initChannel(SocketChannel ch) throws Exception {
if (true) {
ch.pipeline().addLast(context.newHandler(ch.alloc()));
}
ch.pipeline().addLast(new HttpResponseDecoder());
ch.pipeline().addLast(new HttpRequestEncoder());
ch.pipeline().addLast(new HttpObjectAggregator(65535));
ch.pipeline().addLast(handler);
}
}

private static class BootStrapManager {

private static final EventLoopGroup WORKER_GROUP = new NioEventLoopGroup();
private static Bootstrap CLIENT_BOOTSTRAP ;

public static Bootstrap getBootStrap() {
if(CLIENT_BOOTSTRAP == null) {
synchronized (BootStrapManager.class) {
if(CLIENT_BOOTSTRAP == null) {
CLIENT_BOOTSTRAP = newBootStrap();
}
}
}
return CLIENT_BOOTSTRAP;
}

public static Bootstrap newBootStrap() {
Bootstrap bootstrap = new Bootstrap();
bootstrap.group(WORKER_GROUP);
bootstrap.channel(NioSocketChannel.class);
bootstrap.option(ChannelOption.SO_KEEPALIVE, false);
bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 5000);

return bootstrap;
}
}

}


package com.example.demo.controller.ssl.netty;

import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.*;

import java.io.IOException;
import java.net.URI;
import java.util.Map;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.HttpObject;
import org.apache.commons.codec.Charsets;

/**
* Created by joyce on 2019/12/28.
*/

@ChannelHandler.Sharable
public class MainHandler extends SimpleChannelInboundHandler<FullHttpResponse> {

private Map<String, Object> map;
private String msg;

public MainHandler(Map _map, String msg) {
this.map = _map;
this.msg = msg;
}

@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {

System.out.println("active");
HttpRequest request = null;
if(msg.equals("GET"))
request = HttpCreateor.createReqGet("localhost", new URI("/json/testhttps"));

if(msg.equals("POST"))
request = HttpCreateor.createReqPost(
"{\"pa\":\"BeJson\",\"pb\":\"sss\"}".getBytes(), "localhost", new URI("/json/testhttpsPost"));


// 发送
ctx.channel().writeAndFlush(request).addListener(new ChannelFutureListener() {

@Override
public void operationComplete(ChannelFuture future) throws Exception {

}
});

}

@Override
protected void channelRead0(ChannelHandlerContext ctx, FullHttpResponse msg) throws Exception {
System.out.println("read");
if (msg instanceof HttpContent) {
HttpContent httpContent = (HttpContent) msg;
// 字符数组
ByteBuf buf = httpContent.content(); 后自动释放
// 返回
String response = buf.toString(Charsets.UTF_8);

map.put("res", response);
ctx.close();
}
}

@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
cause.printStackTrace();
ctx.channel().close();
}


private static class HttpCreateor {

/**
* 构造HTTP请求
* @return
* @throws Exception
*/
public static HttpRequest createReqGet(String server, URI uri) throws Exception{
String req = "";
DefaultFullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.GET,
uri.toASCIIString(), Unpooled.wrappedBuffer(req.getBytes(Charsets.UTF_8)));
// 构建HTTP请求
request.headers().set(HttpHeaders.Names.HOST, server);
request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
request.headers().set("accept-type", Charsets.UTF_8);
request.headers().set(HttpHeaders.Names.CONTENT_TYPE, "application/json; charset=UTF-8");
// request.headers().set(HttpHeaders.Names.CONTENT_LENGTH, request.content().readableBytes());
// 返回
return request;
}

public static HttpRequest createReqPost(byte [] body, String server, URI uri) throws Exception{

DefaultFullHttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.POST,
uri.toASCIIString(), Unpooled.wrappedBuffer(body));
// 构建HTTP请求
request.headers().set(HttpHeaders.Names.HOST, server);
request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
request.headers().set("accept-type", Charsets.UTF_8);
request.headers().set(HttpHeaders.Names.CONTENT_TYPE, "application/json; charset=UTF-8");
request.headers().set(HttpHeaders.Names.CONTENT_LENGTH, request.content().readableBytes());
// 返回
return request;
}
}


}

 

 


active
22:23:11.389 [nioEventLoopGroup-2-1] DEBUG io.netty.handler.ssl.util.InsecureTrustManagerFactory - Accepting a server certificate: CN=sun, OU=citi, O=citi, L=sh, ST=sh, C=cn
22:23:11.516 [nioEventLoopGroup-2-1] DEBUG io.netty.handler.ssl.SslHandler - [id: 0x1adda983, /127.0.0.1:63691 => localhost/127.0.0.1:8080] HANDSHAKEN: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
read
xxx
active
22:23:11.592 [nioEventLoopGroup-2-2] DEBUG io.netty.handler.ssl.util.InsecureTrustManagerFactory - Accepting a server certificate: CN=sun, OU=citi, O=citi, L=sh, ST=sh, C=cn
22:23:11.613 [nioEventLoopGroup-2-2] DEBUG io.netty.handler.ssl.SslHandler - [id: 0xbfec2d89, /127.0.0.1:63692 => localhost/127.0.0.1:8080] HANDSHAKEN: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
read
{"pa":"12","pb":"22"}

 

Netty 作为 http client 请求https 的 post

原文:https://www.cnblogs.com/silyvin/p/12113175.html

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