使用 GraalVM 构建 native 程序
介绍如何使用 GraalVM 构建 tio-boot-native 程序。这对希望构建快速高效的 Java 服务器应用程序的开发人员特别有用。我们将从安装必要的依赖开始，然后构建一个可以独立于 JVM 运行的本地二进制镜像。
编写代码
pom.xml
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<maven.compiler.source>${java.version}</maven.compiler.source>
<maven.compiler.target>${java.version}</maven.compiler.target>
<graalvm.version>23.1.1</graalvm.version>
<tio-boot.version>1.8.7</tio-boot.version>
<final.name>web-hello</final.name>
<main.class>com.litongjava.tio.web.hello.HelloApp</main.class>
</properties>
<dependencies>
<dependency>
<groupId>com.litongjava</groupId>
<artifactId>tio-boot</artifactId>
<version>${tio-boot.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
<profiles>
<!-- 开发环境 -->
<profile>
<id>development</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<dependencies>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
</dependencies>
</profile>
<!-- 生产环境 -->
<profile>
<id>production</id>
<dependencies>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.7.4</version>
<configuration>
<mainClass>${main.class}</mainClass>
<excludeGroupIds>org.projectlombok</excludeGroupIds>
</configuration>
<!-- 设置执行目标 -->
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<!-- assembly -->
<profile>
<id>assembly</id>
<dependencies>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>3.2.0</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.1.1</version>
<configuration>
<archive>
<manifest>
<mainClass>${main.class}</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<appendAssemblyId>false</appendAssemblyId>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>native</id>
<dependencies>
<!-- GraalVM 环境使用 jdk log -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-jdk14</artifactId>
<version>1.7.31</version>
</dependency>
<!-- GraalVM -->
<dependency>
<groupId>org.graalvm.sdk</groupId>
<artifactId>graal-sdk</artifactId>
<version>${graalvm.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>${final.name}</finalName>
<plugins>
<plugin>
<groupId>org.graalvm.nativeimage</groupId>
<artifactId>native-image-maven-plugin</artifactId>
<version>21.2.0</version>
<executions>
<execution>
<goals>
<goal>native-image</goal>
</goals>
<phase>package</phase>
</execution>
</executions>
<configuration>
<skip>false</skip>
<imageName>${final.name}</imageName>
<mainClass>${main.class}</mainClass>
<buildArgs>
-H:+RemoveSaturatedTypeFlows
--allow-incomplete-classpath
--no-fallback
</buildArgs>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
处理器
package com.litongjava.tio.web.hello.handler;
import com.litongjava.tio.http.common.HttpRequest;
import com.litongjava.tio.http.common.HttpResponse;
import com.litongjava.tio.http.server.util.Resps;
public class HelloRequestHandler {
public HttpResponse hello(HttpRequest httpRequest) {
return Resps.txt(httpRequest, "hello");
}
public HttpResponse hi(HttpRequest httpRequest) {
return Resps.txt(httpRequest, "hi");
}
}
配置类
package com.litongjava.tio.web.hello.config;
import com.litongjava.tio.boot.server.TioBootServer;
import com.litongjava.tio.http.server.router.HttpRequestRouter;
import com.litongjava.tio.web.hello.handler.HelloRequestHandler;
public class HttpRequestHanlderConfig {
public void config() {
HttpRequestRouter r = TioBootServer.me().getRequestRouter();
// handler
HelloRequestHandler HelloRequestHandler = new HelloRequestHandler();
// 添加handler
r.add("/hi", HelloRequestHandler::hi);
r.add("/hello", HelloRequestHandler::hello);
}
}
package com.litongjava.tio.web.hello.config;
import com.litongjava.context.BootConfiguration;
public class AppConfig implements BootConfiguration {
@Override
public void config() {
new HttpRequestHanlderConfig().config();
}
}
启动类
package com.litongjava.tio.web.hello;
import com.litongjava.tio.boot.TioApplication;
import com.litongjava.tio.web.hello.config.AppConfig;
public class HelloApp {
public static void main(String[] args) {
long start = System.currentTimeMillis();
TioApplication.run(HelloApp.class, new AppConfig(), args);
long end = System.currentTimeMillis();
System.out.println((end - start) + "ms");
}
}
上面的代码已经提交到了https://github.com/litongjava/tio-boot-http-request-handler-demo
安装 GraalVM
GraalVM 通过将代码提前编译成本地可执行文件来提高 Java 性能。
- 下载并解压 GraalVM： 这一步包括下载最新版本的 GraalVM 并将其解压到您偏好的目录。
wget https://download.oracle.com/graalvm/21/latest/graalvm-jdk-21_linux-x64_bin.tar.gz
mkdir -p ~/program/
tar -xf graalvm-jdk-21_linux-x64_bin.tar.gz -C ~/program/
- 设置环境变量： 更新您的系统环境变量以包括 GraalVM。这使得能够在全局使用 GraalVM 的
java和其他命令行工具。
export JAVA_HOME=~/program/graalvm-jdk-21.0.1+12.1
export GRAALVM_HOME=~/program/graalvm-jdk-21.0.1+12.1
export PATH=$JAVA_HOME/bin:$PATH
安装 Maven
Apache Maven 是一个主要用于 Java 项目的构建自动化工具。
- 下载并解压 Maven： 与 GraalVM 类似，下载并设置 Maven 在您的本地环境。
wget https://dlcdn.apache.org/maven/maven-3/3.8.8/binaries/apache-maven-3.8.8-bin.zip
unzip apache-maven-3.8.8-bin.zip -d ~/program/
- 设置环境变量： 确保 Maven 的
bin目录在您系统的 PATH 中，以便在任何地方使用 Maven 命令。
export MVN_HOME=~/program/apache-maven-3.8.8/
export PATH=$MVN_HOME/bin:$PATH
构建应用程序
现在所有工具和依赖都已设置好，让我们编译并运行一个示例应用程序。
- 克隆示例应用程序： 这是一个内置 HTTP 请求处理器的 TIO-Boot 示例应用程序。
git clone https://github.com/litongjava/tio-boot-http-request-handler-demo.git
- 构建 JAR 文件（可选）： 这一步将 Java 应用程序编译成 JAR 文件。如果您打算直接构建本地镜像，此步骤可选。
cd tio-boot-http-request-handler-demo
mvn clean package -DskipTests -Pproduction
- 构建本地二进制镜像： 最后，将应用程序编译成本地可执行文件。与在 JVM 上运行相比，这可以减少启动时间和资源消耗。
mvn clean package -DskipTests -Pnative
完整构建日志
Welcome to Ubuntu 20.04.6 LTS (GNU/Linux 5.15.0-105-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
* Introducing Expanded Security Maintenance for Applications.
Receive updates to over 25,000 software packages with your
Ubuntu Pro subscription. Free for personal use.
https://ubuntu.com/pro
Expanded Security Maintenance for Applications is not enabled.
80 updates can be applied immediately.
To see these additional updates run: apt list --upgradable
29 additional security updates can be applied with ESM Apps.
Learn more about enabling ESM Apps service at https://ubuntu.com/esm
New release '22.04.3 LTS' available.
Run 'do-release-upgrade' to upgrade to it.
Your Hardware Enablement Stack (HWE) is supported until April 2025.
Last login: Mon May 6 05:50:37 2024 from 192.168.3.8
root@ping-Inspiron-3458:~# export JAVA_HOME=~/program/graalvm-jdk-21.0.1+12.1
root@ping-Inspiron-3458:~# export GRAALVM_HOME=~/program/graalvm-jdk-21.0.1+12.1
root@ping-Inspiron-3458:~# export PATH=$JAVA_HOME/bin:$PATH
root@ping-Inspiron-3458:~# export MVN_HOME=~/program/apache-maven-3.8.8/
root@ping-Inspiron-3458:~# export PATH=$MVN_HOME/bin:$PATH
root@ping-Inspiron-3458:~# cd ~/code/tio-boot-http-request-handler-demo/
root@ping-Inspiron-3458:~/code/tio-boot-http-request-handler-demo# mvn clean package -DskipTests -Pnative
[INFO] Scanning for projects...
[INFO]
[INFO] ---------< com.litongjava:tio-boot-http-request-handler-demo >----------
[INFO] Building tio-boot-http-request-handler-demo 1.0.0
[INFO] from pom.xml
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ tio-boot-http-request-handler-demo ---
[INFO] Deleting /root/code/tio-boot-http-request-handler-demo/target
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ tio-boot-http-request-handler-demo ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /root/code/tio-boot-http-request-handler-demo/src/main/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ tio-boot-http-request-handler-demo ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 4 source files to /root/code/tio-boot-http-request-handler-demo/target/classes
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ tio-boot-http-request-handler-demo ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory /root/code/tio-boot-http-request-handler-demo/src/test/resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ tio-boot-http-request-handler-demo ---
[INFO] No sources to compile
[INFO]
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ tio-boot-http-request-handler-demo ---
[INFO] Tests are skipped.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ tio-boot-http-request-handler-demo ---
[INFO] Building jar: /root/code/tio-boot-http-request-handler-demo/target/web-hello.jar
[INFO]
[INFO] --- native-image-maven-plugin:21.2.0:native-image (default) @ tio-boot-http-request-handler-demo ---
[INFO] ImageClasspath Entry: com.litongjava:tio-boot:jar:1.6.4:compile (file:///root/.m2/repository/com/litongjava/tio-boot/1.6.4/tio-boot-1.6.4.jar)
[INFO] ImageClasspath Entry: com.litongjava:tio-utils:jar:3.7.3.v20240601-RELEASE:compile (file:///root/.m2/repository/com/litongjava/tio-utils/3.7.3.v20240601-RELEASE/tio-utils-3.7.3.v20240601-RELEASE.jar)
[INFO] ImageClasspath Entry: com.litongjava:tio-core:jar:3.7.3.v20240601-RELEASE:compile (file:///root/.m2/repository/com/litongjava/tio-core/3.7.3.v20240601-RELEASE/tio-core-3.7.3.v20240601-RELEASE.jar)
[INFO] ImageClasspath Entry: com.litongjava:tio-http-common:jar:3.7.3.v20240601-RELEASE:compile (file:///root/.m2/repository/com/litongjava/tio-http-common/3.7.3.v20240601-RELEASE/tio-http-common-3.7.3.v20240601-RELEASE.jar)
[INFO] ImageClasspath Entry: com.litongjava:tio-http-server:jar:3.7.3.v20240601-RELEASE:compile (file:///root/.m2/repository/com/litongjava/tio-http-server/3.7.3.v20240601-RELEASE/tio-http-server-3.7.3.v20240601-RELEASE.jar)
[INFO] ImageClasspath Entry: com.litongjava:tio-websocket-server:jar:3.7.3.v20240130-RELEASE:compile (file:///root/.m2/repository/com/litongjava/tio-websocket-server/3.7.3.v20240130-RELEASE/tio-websocket-server-3.7.3.v20240130-RELEASE.jar)
[INFO] ImageClasspath Entry: com.litongjava:tio-websocket-common:jar:3.7.3.v20240130-RELEASE:compile (file:///root/.m2/repository/com/litongjava/tio-websocket-common/3.7.3.v20240130-RELEASE/tio-websocket-common-3.7.3.v20240130-RELEASE.jar)
[INFO] ImageClasspath Entry: commons-io:commons-io:jar:2.10.0:compile (file:///root/.m2/repository/commons-io/commons-io/2.10.0/commons-io-2.10.0.jar)
[INFO] ImageClasspath Entry: com.thoughtworks.paranamer:paranamer:jar:2.8:compile (file:///root/.m2/repository/com/thoughtworks/paranamer/paranamer/2.8/paranamer-2.8.jar)
[INFO] ImageClasspath Entry: com.esotericsoftware:reflectasm:jar:1.11.9:compile (file:///root/.m2/repository/com/esotericsoftware/reflectasm/1.11.9/reflectasm-1.11.9.jar)
[INFO] ImageClasspath Entry: org.slf4j:slf4j-jdk14:jar:1.7.31:compile (file:///root/.m2/repository/org/slf4j/slf4j-jdk14/1.7.31/slf4j-jdk14-1.7.31.jar)
[INFO] ImageClasspath Entry: org.slf4j:slf4j-api:jar:1.7.31:compile (file:///root/.m2/repository/org/slf4j/slf4j-api/1.7.31/slf4j-api-1.7.31.jar)
[INFO] ImageClasspath Entry: com.litongjava:tio-boot-http-request-handler-demo:jar:1.0.0 (file:///root/code/tio-boot-http-request-handler-demo/target/web-hello.jar)
[WARNING] Major.Minor version mismatch between native-image-maven-plugin (21.2.0) and native-image executable (Unknown)
[INFO] Executing: /root/program/graalvm-jdk-21.0.1+12.1/lib/svm/bin/native-image -cp /root/.m2/repository/com/litongjava/tio-boot/1.6.4/tio-boot-1.6.4.jar:/root/.m2/repository/com/litongjava/tio-utils/3.7.3.v20240601-RELEASE/tio-utils-3.7.3.v20240601-RELEASE.jar:/root/.m2/repository/com/litongjava/tio-core/3.7.3.v20240601-RELEASE/tio-core-3.7.3.v20240601-RELEASE.jar:/root/.m2/repository/com/litongjava/tio-http-common/3.7.3.v20240601-RELEASE/tio-http-common-3.7.3.v20240601-RELEASE.jar:/root/.m2/repository/com/litongjava/tio-http-server/3.7.3.v20240601-RELEASE/tio-http-server-3.7.3.v20240601-RELEASE.jar:/root/.m2/repository/com/litongjava/tio-websocket-server/3.7.3.v20240130-RELEASE/tio-websocket-server-3.7.3.v20240130-RELEASE.jar:/root/.m2/repository/com/litongjava/tio-websocket-common/3.7.3.v20240130-RELEASE/tio-websocket-common-3.7.3.v20240130-RELEASE.jar:/root/.m2/repository/commons-io/commons-io/2.10.0/commons-io-2.10.0.jar:/root/.m2/repository/com/thoughtworks/paranamer/paranamer/2.8/paranamer-2.8.jar:/root/.m2/repository/com/esotericsoftware/reflectasm/1.11.9/reflectasm-1.11.9.jar:/root/.m2/repository/org/slf4j/slf4j-jdk14/1.7.31/slf4j-jdk14-1.7.31.jar:/root/.m2/repository/org/slf4j/slf4j-api/1.7.31/slf4j-api-1.7.31.jar:/root/code/tio-boot-http-request-handler-demo/target/web-hello.jar -H:+RemoveSaturatedTypeFlows --allow-incomplete-classpath --no-fallback -H:Class=com.litongjava.tio.web.hello.HelloApp -H:Name=web-hello
Warning: Using a deprecated option --allow-incomplete-classpath from command line. Allowing an incomplete classpath is now the default. Use --link-at-build-time to report linking errors at image build time for a class or package.
Warning: The option '-H:Name=web-hello' is experimental and must be enabled via '-H:+UnlockExperimentalVMOptions' in the future.
Warning: The option '-H:+RemoveSaturatedTypeFlows' is experimental and must be enabled via '-H:+UnlockExperimentalVMOptions' in the future.
Warning: Please re-evaluate whether any experimental option is required, and either remove or unlock it. The build output lists all active experimental options, including where they come from and possible alternatives. If you think an experimental option should be considered as stable, please file an issue.
========================================================================================================================
GraalVM Native Image: Generating 'web-hello' (executable)...
========================================================================================================================
[1/8] Initializing... (14.1s @ 0.07GB)
Java version: 21.0.3+7-LTS, vendor version: Oracle GraalVM 21.0.3+7.1
Graal compiler: optimization level: 2, target machine: x86-64-v3, PGO: ML-inferred
C compiler: gcc (linux, x86_64, 9.4.0)
Garbage collector: Serial GC (max heap size: 80% of RAM)
1 user-specific feature(s):
- com.oracle.svm.thirdparty.gson.GsonFeature
------------------------------------------------------------------------------------------------------------------------
1 experimental option(s) unlocked:
- '-H:Name' (alternative API option(s): -o web-hello; origin(s): command line)
------------------------------------------------------------------------------------------------------------------------
Build resources:
- 5.80GB of memory (75.6% of 7.67GB system memory, determined at start)
- 4 thread(s) (100.0% of 4 available processor(s), determined at start)
Found pending operations, continuing analysis.
[2/8] Performing analysis... [******] (117.5s @ 0.59GB)
6,568 reachable types (82.5% of 7,963 total)
9,228 reachable fields (55.0% of 16,776 total)
33,806 reachable methods (56.6% of 59,757 total)
2,120 types, 125 fields, and 1,715 methods registered for reflection
60 types, 60 fields, and 55 methods registered for JNI access
4 native libraries: dl, pthread, rt, z
[3/8] Building universe... (15.0s @ 0.64GB)
[4/8] Parsing methods... [******] (44.8s @ 0.85GB)
[5/8] Inlining methods... [***] (7.2s @ 0.79GB)
[6/8] Compiling methods... [****************] (261.5s @ 0.66GB)
[7/8] Layouting methods... [[7/8] Layouting methods... [***] (9.7s @ 0.75GB)
[8/8] Creating image... [[8/8] Creating image... [***] (10.6s @ 0.87GB)
17.48MB (52.87%) for code area: 18,874 compilation units
14.35MB (43.41%) for image heap: 205,637 objects and 49 resources
1.23MB ( 3.72%) for other data
33.06MB in total
------------------------------------------------------------------------------------------------------------------------
Top 10 origins of code area: Top 10 object types in image heap:
11.82MB java.base 4.68MB byte[] for code metadata
2.59MB svm.jar (Native Image) 2.48MB byte[] for java.lang.String
392.55kB reflectasm-1.11.9.jar 1.41MB java.lang.String
341.89kB java.rmi 1.11MB java.lang.Class
265.50kB java.naming 644.48kB byte[] for general heap data
258.62kB tio-core-3.7.3.v20240601-RELEASE.jar 552.52kB heap alignment
251.39kB jdk.crypto.ec 369.42kB byte[] for reflection metadata
192.82kB java.desktop 307.88kB com.oracle.svm.core.hub.DynamicHubCompanion
154.33kB tio-http-common-3.7.3.v20240601-RELEASE.jar 253.31kB java.util.HashMap$Node
148.94kB java.logging 191.96kB char[]
1002.92kB for 25 more packages 2.41MB for 1718 more object types
Use '-H:+BuildReport' to create a report with more details.
------------------------------------------------------------------------------------------------------------------------
Security report:
- Binary includes Java deserialization.
- Use '--enable-sbom' to embed a Software Bill of Materials (SBOM) in the binary.
------------------------------------------------------------------------------------------------------------------------
Recommendations:
G1GC: Use the G1 GC ('--gc=G1') for improved latency and throughput.
PGO: Use Profile-Guided Optimizations ('--pgo') for improved throughput.
INIT: Adopt '--strict-image-heap' to prepare for the next GraalVM release.
HEAP: Set max heap for improved and more predictable memory usage.
CPU: Enable more CPU features with '-march=native' for improved performance.
------------------------------------------------------------------------------------------------------------------------
43.0s (8.9% of total time) in 600 GCs | Peak RSS: 1.73GB | CPU load: 2.34
------------------------------------------------------------------------------------------------------------------------
Produced artifacts:
/root/code/tio-boot-http-request-handler-demo/target/web-hello (executable)
========================================================================================================================
Finished generating 'web-hello' in 8m 2s.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 08:10 min
[INFO] Finished at: 2024-05-06T06:01:02+08:00
[INFO] ------------------------------------------------------------------------
启动测试
$ ./target/web-hello
Nov 08, 2024 9:02:58 AM com.litongjava.tio.utils.environment.Prop <init>
INFO: file created successful：app.properties
Nov 08, 2024 9:02:58 AM com.litongjava.tio.utils.environment.EnvUtils load
INFO: app.env:null
Nov 08, 2024 9:02:58 AM com.litongjava.tio.boot.context.TioApplicationContext run
INFO: not found:com.litongjava.jfinal.aop.Aop
Nov 08, 2024 9:02:58 AM com.litongjava.tio.boot.context.TioApplicationContext configHttp
INFO: server session enable:false
Nov 08, 2024 9:02:58 AM com.litongjava.tio.boot.context.TioApplicationContext run
INFO: used cache :class com.litongjava.tio.utils.cache.mapcache.ConcurrentMapCacheFactory
Nov 08, 2024 9:02:58 AM com.litongjava.tio.boot.context.TioApplicationContext run
INFO: sever heartbeat timeout:0
Nov 08, 2024 9:02:58 AM com.litongjava.tio.utils.Threads getTioExecutor
INFO: new worker thead pool:com.litongjava.tio.utils.thread.pool.SynThreadPoolExecutor@36ff931f[Running, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 0]
Nov 08, 2024 9:02:58 AM com.litongjava.tio.boot.context.TioApplicationContext run
INFO: http mapping
{
"/hi": "com.litongjava.tio.web.hello.config.HttpRequestHanlderConfig$$Lambda$d081350b15bca0456936253d349a9e11adb6c519@38db5491",
"/hello": "com.litongjava.tio.web.hello.config.HttpRequestHanlderConfig$$Lambda$cb437d3e797185b36b558533d31a5d6958f792c1@53378e7a"
}
Nov 08, 2024 9:02:58 AM com.litongjava.tio.boot.context.TioApplicationContext run
INFO: total:2(ms), scan class:0(ms), init:0(ms), config:1(ms), server:1(ms), http route:0(ms)
Nov 08, 2024 9:02:58 AM com.litongjava.tio.boot.context.TioApplicationContext printUrl
INFO: port:80
http://localhost
9ms
启动时间只有 9s
curl http://localhost/hi
curl http://localhost/hello
构建后的文件大约是 34M 下载地址
性能测试
测试命令
ab -c1000 -n10000000 http://localhost/ok