【发布时间】：2015-07-12 15:38:09
【问题描述】：
Jetty 支持服务器推送的 HTTP/2 客户端已在 Jetty 9.3 RC (Link) 中实现。但是，我还没有找到与此相关的任何文档或示例代码。任何人都可以提供一个示例代码，例如从该站点接收推送的资源：@987654322@（具有enabled http2 server push的公共服务器）
---更新 1--- 正如 sbordet 所说，我试图测试this file。但是，执行此行后
mvn compile exec:java
我遇到了这个错误
[INFO] --- exec-maven-plugin:1.4.0:java (default-cli) @ http2client ---
2015-05-05 01:52:47.808:INFO::com.example.Client.main(): Logging initialized @3096ms
[WARNING]
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:293)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.util.concurrent.TimeoutException
at org.eclipse.jetty.util.FuturePromise.get(FuturePromise.java:130)
at com.example.Client.main(Client.java:55)
... 6 more
这是我的pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>http2client</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>http2client</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>org.eclipse.jetty.http2</groupId>
<artifactId>http2-client</artifactId>
<version>9.3.0.M2</version>
</dependency>
<dependency>
<groupId>org.mortbay.jetty.alpn</groupId>
<artifactId>alpn-boot</artifactId>
<version>8.1.3.v20150130</version>
<scope>runtime</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.4.0</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>com.example.Client</mainClass>
</configuration>
</plugin>
</plugins>
</build>
这是我的项目目录
|-- pom.xml
|-- src
| `-- main
| `-- java
| `-- com
| `-- example
| `-- Client.java
`-- target
|-- classes
| `-- com
| `-- example
| |-- Client$1.class
| `-- Client.class
`-- maven-status
`-- maven-compiler-plugin
`-- compile
`-- default-compile
|-- createdFiles.lst
`-- inputFiles.lst
---更新 2---
将我的pom.xml<build> 标记更改为：（显式使用JDK 8 并添加-Xbootclasspath 以指向Jetty 提供的alpn-boot.jar）。我正在使用 Java 8 更新 31
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.4.0</version>
<executions>
<execution>
<goals>
<goal>exec</goal>
</goals>
</execution>
</executions>
<configuration>
<executable>java</executable>
<arguments>
<argument>-Xbootclasspath/p:/path/to/alpn-boot-8.1.3.v20150130.jar</argument>
<argument>-classpath</argument>
<classpath/>
<argument>com.example.Client</argument>
</arguments>
</configuration>
</plugin>
</plugins>
</build>
执行此命令后：
mvn clean compile exec:exec
我在尝试连接到https://webtide.com/（Client.java 文件中的默认主机）时收到此错误
[INFO] --- exec-maven-plugin:1.4.0:exec (default-cli) @ http2client ---
2015-05-05 13:19:25.499:INFO::main: Logging initialized @153ms
Exception in thread "main" java.util.concurrent.TimeoutException
at org.eclipse.jetty.util.FuturePromise.get(FuturePromise.java:130)
at com.example.Client.main(Client.java:55)
连接https://nghttp2.org/时出现这个错误
[INFO] --- exec-maven-plugin:1.4.0:exec (default-cli) @ http2client ---
2015-05-05 13:29:12.106:INFO::main: Logging initialized @196ms
Exception in thread "main" java.util.concurrent.TimeoutException
at java.util.concurrent.Phaser.awaitAdvanceInterruptibly(Phaser.java:800)
at com.example.Client.main(Client.java:90)
---更新 3---
采取不同的方法：当我拉出整个码头项目的所有主分支，然后在 jetty.project/jetty-http2/http2-client 创建一个 Intellij 项目时，它适用于公共服务器 https://webtide.com 和 https://nghttp2.org 。但是当我在我的自签名证书 http2 服务器上测试它时（使用 nghttp2 + nginx，驻留在我的虚拟机中）然后我得到这个错误
2015-05-05 19:05:25.094:INFO::main: Logging initialized @220ms
Exception in thread "main" java.util.concurrent.ExecutionException: java.nio.channels.ClosedChannelException
at org.eclipse.jetty.util.FuturePromise.get(FuturePromise.java:138)
at org.eclipse.jetty.http2.client.Client.main(Client.java:55)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: java.nio.channels.ClosedChannelException
at org.eclipse.jetty.http2.HTTP2Flusher.append(HTTP2Flusher.java:110)
at org.eclipse.jetty.http2.HTTP2Session.frame(HTTP2Session.java:577)
at org.eclipse.jetty.http2.HTTP2Session.frames(HTTP2Session.java:559)
at org.eclipse.jetty.http2.client.HTTP2ClientConnectionFactory$HTTP2ClientConnection.onOpen(HTTP2ClientConnectionFactory.java:121)
【问题讨论】：
标签： jetty server-push http2 nghttp2